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DbProviderFactory — провайдер-незалежний код","/csharp/ado-net/provider-factory","01.csharp/09.ado-net/07.provider-factory",{"title":438,"path":439,"stem":440},"9.8. Асинхронний доступ до даних","/csharp/ado-net/async-data-access","01.csharp/09.ado-net/08.async-data-access",{"title":442,"path":443,"stem":444},"9.9. Від'єднаний режим: DataSet, DataTable, DataRow","/csharp/ado-net/disconnected-mode-dataset","01.csharp/09.ado-net/09.disconnected-mode-dataset",{"title":446,"path":447,"stem":448},"9.10. DataAdapter — міст між DataSet та базою даних","/csharp/ado-net/data-adapter","01.csharp/09.ado-net/10.data-adapter",{"title":450,"path":451,"stem":452},"9.11. Data Mapper та Repository: Архітектура доступу до даних","/csharp/ado-net/data-mapper-repository","01.csharp/09.ado-net/11.data-mapper-repository",{"title":454,"path":455,"stem":456},"9.12. Identity Map, Unit of Work та Specification Pattern","/csharp/ado-net/advanced-patterns","01.csharp/09.ado-net/12.advanced-patterns",{"title":458,"icon":255,"path":459,"stem":460,"children":461,"page":59},"Ef Core","/csharp/ef-core","01.csharp/10.ef-core",[462,466,470,474,478,482,486,490,494,498,502,506,510,514,518,522,526,532,538,542,546,550,554,558,562,566,570,574,578,582,586,590,594,598,602,606,610,614,618,622,626,630,634,638,642,646],{"title":463,"path":464,"stem":465},"Що таке ORM? Від SQL до об'єктів","/csharp/ef-core/what-is-orm","01.csharp/10.ef-core/01.what-is-orm",{"title":467,"path":468,"stem":469},"Перший проєкт — від нуля до CRUD","/csharp/ef-core/first-project","01.csharp/10.ef-core/02.first-project",{"title":471,"path":472,"stem":473},"DbContext — Серце EF Core","/csharp/ef-core/dbcontext-deep-dive","01.csharp/10.ef-core/03.dbcontext-deep-dive",{"title":475,"path":476,"stem":477},"Провайдери баз даних — Архітектура та Вибір СУБД","/csharp/ef-core/database-providers","01.csharp/10.ef-core/04.database-providers",{"title":479,"path":480,"stem":481},"Конвенції EF Core — Магія без конфігурації","/csharp/ef-core/conventions","01.csharp/10.ef-core/05.conventions",{"title":483,"path":484,"stem":485},"Fluent API та Data Annotations — Явна конфігурація моделі","/csharp/ef-core/fluent-api-vs-annotations","01.csharp/10.ef-core/06.fluent-api-vs-annotations",{"title":487,"path":488,"stem":489},"Зв'язки — One-to-One та One-to-Many","/csharp/ef-core/relationships-basics","01.csharp/10.ef-core/07.relationships-basics",{"title":491,"path":492,"stem":493},"Зв'язки Advanced — Many-to-Many та Складні Сценарії","/csharp/ef-core/relationships-advanced","01.csharp/10.ef-core/08.relationships-advanced",{"title":495,"path":496,"stem":497},"Властивості — Типи, Конвертери, Компаратори (Частина 1)","/csharp/ef-core/property-configuration-part1","01.csharp/10.ef-core/09.property-configuration-part1",{"title":499,"path":500,"stem":501},"Властивості — Value Comparers, Generators, Shadow Properties (Частина 2)","/csharp/ef-core/property-configuration-part2","01.csharp/10.ef-core/09.property-configuration-part2",{"title":503,"path":504,"stem":505},"Складні типи — Owned Types та Complex Types (Частина 1)","/csharp/ef-core/complex-types-owned-part1","01.csharp/10.ef-core/10.complex-types-owned-part1",{"title":507,"path":508,"stem":509},"Складні типи — Complex Types, Keyless Entities, Порівняння (Частина 2)","/csharp/ef-core/complex-types-owned-part2","01.csharp/10.ef-core/10.complex-types-owned-part2",{"title":511,"path":512,"stem":513},"JSON Columns — Складні дані у JSON (Частина 1)","/csharp/ef-core/json-columns-part1","01.csharp/10.ef-core/11.json-columns-part1",{"title":515,"path":516,"stem":517},"JSON Columns — Value Comparers, Індекси, Провайдери (Частина 2)","/csharp/ef-core/json-columns-part2","01.csharp/10.ef-core/11.json-columns-part2",{"title":519,"path":520,"stem":521},"Успадкування — Абстрактні класи та TPH (Частина 1)","/csharp/ef-core/inheritance-part1","01.csharp/10.ef-core/12.inheritance-part1",{"title":523,"path":524,"stem":525},"Успадкування — TPT, TPC та Порівняння Стратегій (Частина 2)","/csharp/ef-core/inheritance-part2","01.csharp/10.ef-core/12.inheritance-part2",{"title":527,"path":528,"stem":529,"children":530},"Індекси, Обмеження та Схема (Частина 1)","/csharp/ef-core/indexes-constraints-part1","01.csharp/10.ef-core/13.indexes-constraints-part1",[531],{"title":527,"path":528,"stem":529},{"title":533,"path":534,"stem":535,"children":536},"Індекси, Обмеження та Схема (Частина 2)","/csharp/ef-core/indexes-constraints-part2","01.csharp/10.ef-core/13.indexes-constraints-part2",[537],{"title":533,"path":534,"stem":535},{"title":539,"path":540,"stem":541},"Seed Data — Початкові Дані (Частина 1)","/csharp/ef-core/seeding-part1","01.csharp/10.ef-core/14.seeding-part1",{"title":543,"path":544,"stem":545},"Seed Data — SQL-скрипти, Bogus та Стратегії (Частина 2)","/csharp/ef-core/seeding-part2","01.csharp/10.ef-core/14.seeding-part2",{"title":547,"path":548,"stem":549},"Global Query Filters — Глобальні Фільтри (Частина 1)","/csharp/ef-core/global-query-filters-part1","01.csharp/10.ef-core/15.global-query-filters-part1",{"title":551,"path":552,"stem":553},"Global Query Filters — Підводні камені та Інтеграція (Частина 2)","/csharp/ef-core/global-query-filters-part2","01.csharp/10.ef-core/15.global-query-filters-part2",{"title":555,"path":556,"stem":557},"LINQ-запити в EF Core (Частина 1)","/csharp/ef-core/linq-queries-part1","01.csharp/10.ef-core/16.linq-queries-part1",{"title":559,"path":560,"stem":561},"LINQ-запити в EF Core (Частина 2)","/csharp/ef-core/linq-queries-part2","01.csharp/10.ef-core/16.linq-queries-part2",{"title":563,"path":564,"stem":565},"Завантаження Пов'язаних Даних (Частина 1)","/csharp/ef-core/loading-related-data-part1","01.csharp/10.ef-core/17.loading-related-data-part1",{"title":567,"path":568,"stem":569},"Завантаження Пов'язаних Даних (Частина 2)","/csharp/ef-core/loading-related-data-part2","01.csharp/10.ef-core/17.loading-related-data-part2",{"title":571,"path":572,"stem":573},"Raw SQL, Views та Stored Procedures (Частина 1)","/csharp/ef-core/raw-sql-part1","01.csharp/10.ef-core/18.raw-sql-part1",{"title":575,"path":576,"stem":577},"Raw SQL — Stored Procedures, DbFunction та Bulk Operations (Частина 2)","/csharp/ef-core/raw-sql-part2","01.csharp/10.ef-core/18.raw-sql-part2",{"title":579,"path":580,"stem":581},"Продвинуті Запити — Compiled Queries, Bulk та Оптимізація (Частина 1)","/csharp/ef-core/advanced-queries-part1","01.csharp/10.ef-core/19.advanced-queries-part1",{"title":583,"path":584,"stem":585},"Продвинуті Запити — Query Tags, Bulk та Interceptors (Частина 2)","/csharp/ef-core/advanced-queries-part2","01.csharp/10.ef-core/19.advanced-queries-part2",{"title":587,"path":588,"stem":589},"Change Tracker — Відстеження Змін (Частина 1)","/csharp/ef-core/change-tracking-part1","01.csharp/10.ef-core/20.change-tracking-part1",{"title":591,"path":592,"stem":593},"Change Tracker — Графи Об'єктів та Disconnected (Частина 2)","/csharp/ef-core/change-tracking-part2","01.csharp/10.ef-core/20.change-tracking-part2",{"title":595,"path":596,"stem":597},"Збереження Даних та Транзакції (Частина 1)","/csharp/ef-core/saving-data-part1","01.csharp/10.ef-core/21.saving-data-part1",{"title":599,"path":600,"stem":601},"Збереження Даних — Concurrency та Outbox (Частина 2)","/csharp/ef-core/saving-data-part2","01.csharp/10.ef-core/21.saving-data-part2",{"title":603,"path":604,"stem":605},"Конкурентність та Блокування (Частина 1)","/csharp/ef-core/concurrency-part1","01.csharp/10.ef-core/22.concurrency-part1",{"title":607,"path":608,"stem":609},"Конкурентність — Дедлоки та Queue Processing (Частина 2)","/csharp/ef-core/concurrency-part2","01.csharp/10.ef-core/22.concurrency-part2",{"title":611,"path":612,"stem":613},"Міграції в EF Core — Основи (Частина 1)","/csharp/ef-core/migrations-basics-part1","01.csharp/10.ef-core/23.migrations-basics-part1",{"title":615,"path":616,"stem":617},"Міграції в EF Core — Основи (Частина 2)","/csharp/ef-core/migrations-basics-part2","01.csharp/10.ef-core/23.migrations-basics-part2",{"title":619,"path":620,"stem":621},"Міграції — Просунуті Сценарії (Частина 1)","/csharp/ef-core/migrations-advanced-part1","01.csharp/10.ef-core/24.migrations-advanced-part1",{"title":623,"path":624,"stem":625},"Міграції — Просунуті Сценарії (Частина 2)","/csharp/ef-core/migrations-advanced-part2","01.csharp/10.ef-core/24.migrations-advanced-part2",{"title":627,"path":628,"stem":629},"Управління Схемою та Database-First (Частина 1)","/csharp/ef-core/schema-management-part1","01.csharp/10.ef-core/25.schema-management-part1",{"title":631,"path":632,"stem":633},"Управління Схемою та Database-First (Частина 2)","/csharp/ef-core/schema-management-part2","01.csharp/10.ef-core/25.schema-management-part2",{"title":635,"path":636,"stem":637},"Продуктивність EF Core — Основи (Частина 1)","/csharp/ef-core/performance-fundamentals-part1","01.csharp/10.ef-core/26.performance-fundamentals-part1",{"title":639,"path":640,"stem":641},"Interceptors в EF Core (Частина 1)","/csharp/ef-core/interceptors-part1","01.csharp/10.ef-core/29.interceptors-part1",{"title":643,"path":644,"stem":645},"Interceptors в EF Core — Connection, Transaction та Materialization (Частина 2)","/csharp/ef-core/interceptors-part2","01.csharp/10.ef-core/29.interceptors-part2",{"title":647,"path":648,"stem":649},"План вивчення Entity Framework Core — Повний курс","/csharp/ef-core/implementation_plan","01.csharp/10.ef-core/implementation_plan",{"title":651,"icon":652,"path":653,"stem":654,"children":655,"page":59},"ASP.NET","i-devicon-dotnetcore","/csharp/aspnet","01.csharp/11.aspnet",[656,730,791,869,927,941,967,1057,1111,1182,1212,1289],{"title":657,"icon":658,"path":659,"stem":660,"children":661,"page":59},"Minimal API","i-lucide-network","/csharp/aspnet/minimal-api","01.csharp/11.aspnet/01.minimal-api",[662,666,670,674,678,682,686,690,694,698,702,706,710,714,718,722,726],{"title":663,"path":664,"stem":665},"Вступ до ASP.NET та еволюція фреймворку","/csharp/aspnet/minimal-api/introduction","01.csharp/11.aspnet/01.minimal-api/01.introduction",{"title":667,"path":668,"stem":669},"Перший додаток на ASP.NET Core","/csharp/aspnet/minimal-api/first-application","01.csharp/11.aspnet/01.minimal-api/02.first-application",{"title":671,"path":672,"stem":673},"WebApplication, Builder та Dependency Injection","/csharp/aspnet/minimal-api/webapplication-builder","01.csharp/11.aspnet/01.minimal-api/03.webapplication-builder",{"title":675,"path":676,"stem":677},"Конвеєр запитів та Middleware","/csharp/aspnet/minimal-api/request-pipeline-middleware","01.csharp/11.aspnet/01.minimal-api/04.request-pipeline-middleware",{"title":679,"path":680,"stem":681},"Маршрутизація в ASP.NET Core: Основи","/csharp/aspnet/minimal-api/routing-basics","01.csharp/11.aspnet/01.minimal-api/05.routing-basics",{"title":683,"path":684,"stem":685},"Маршрутизація в ASP.NET Core: Розширені можливості","/csharp/aspnet/minimal-api/routing-advanced","01.csharp/11.aspnet/01.minimal-api/06.routing-advanced",{"title":687,"path":688,"stem":689},"Статичні файли в ASP.NET Core","/csharp/aspnet/minimal-api/static-files","01.csharp/11.aspnet/01.minimal-api/07.static-files",{"title":691,"path":692,"stem":693},"Статичні Активи: MapStaticAssets (ASP.NET Core 9.0)","/csharp/aspnet/minimal-api/static-assets","01.csharp/11.aspnet/01.minimal-api/08.static-assets",{"title":695,"path":696,"stem":697},"Конфігурація в ASP.NET Core: Основи","/csharp/aspnet/minimal-api/configuration-fundamentals","01.csharp/11.aspnet/01.minimal-api/09.configuration-fundamentals",{"title":699,"path":700,"stem":701},"Конфігурація: Паттерн Options","/csharp/aspnet/minimal-api/configuration-options","01.csharp/11.aspnet/01.minimal-api/10.configuration-options",{"title":703,"path":704,"stem":705},"Логування в ASP.NET Core: Основи","/csharp/aspnet/minimal-api/logging-basics","01.csharp/11.aspnet/01.minimal-api/11.logging-basics",{"title":707,"path":708,"stem":709},"Логування: Serilog та Middleware","/csharp/aspnet/minimal-api/logging-advanced","01.csharp/11.aspnet/01.minimal-api/12.logging-advanced",{"title":711,"path":712,"stem":713},"Управління станом: HttpContext.Items та Cookies","/csharp/aspnet/minimal-api/state-management","01.csharp/11.aspnet/01.minimal-api/13.state-management",{"title":715,"path":716,"stem":717},"Стан сесії: Sessions","/csharp/aspnet/minimal-api/session-state","01.csharp/11.aspnet/01.minimal-api/14.session-state",{"title":719,"path":720,"stem":721},"Структура проєкту: від хаосу до архітектури","/csharp/aspnet/minimal-api/project-structure","01.csharp/11.aspnet/01.minimal-api/15.project-structure",{"title":723,"path":724,"stem":725},"Scalar у Minimal API: повний проєкт і Fluent OpenAPI","/csharp/aspnet/minimal-api/scalar-openapi-fluent","01.csharp/11.aspnet/01.minimal-api/16.scalar-openapi-fluent",{"title":727,"path":728,"stem":729},"Swagger / Swashbuckle у Minimal API: окремий класичний шлях","/csharp/aspnet/minimal-api/swagger-swashbuckle","01.csharp/11.aspnet/01.minimal-api/17.swagger-swashbuckle",{"title":731,"icon":658,"path":732,"stem":733,"children":734,"page":59},"API","/csharp/aspnet/api","01.csharp/11.aspnet/02.api",[735,739,743,747,751,755,759,763,767,771,775,779,783,787],{"title":736,"path":737,"stem":738},"Що таке API. Клієнт-серверна архітектура","/csharp/aspnet/api/what-is-api","01.csharp/11.aspnet/02.api/01.what-is-api",{"title":740,"path":741,"stem":742},"Формати даних: JSON, XML, TOML та бінарні формати","/csharp/aspnet/api/data-formats","01.csharp/11.aspnet/02.api/02.data-formats",{"title":744,"path":745,"stem":746},"Парадигми API та концепція REST","/csharp/aspnet/api/api-paradigms-rest","01.csharp/11.aspnet/02.api/03.api-paradigms-rest",{"title":748,"path":749,"stem":750},"HTTP-методи, статус-коди та заголовки","/csharp/aspnet/api/http-methods-status-codes","01.csharp/11.aspnet/02.api/04.http-methods-status-codes",{"title":752,"path":753,"stem":754},"Організація HTTP API за принципами REST","/csharp/aspnet/api/rest-organizing","01.csharp/11.aspnet/02.api/05.rest-organizing",{"title":756,"path":757,"stem":758},"Номенклатура URL та CRUD-операції","/csharp/aspnet/api/url-nomenclature-crud","01.csharp/11.aspnet/02.api/06.url-nomenclature-crud",{"title":760,"path":761,"stem":762},"Правила дизайну: іменування та стандарти","/csharp/aspnet/api/api-design-naming","01.csharp/11.aspnet/02.api/07.api-design-naming",{"title":764,"path":765,"stem":766},"Валідація, ліміти та обробка помилок","/csharp/aspnet/api/api-design-validation","01.csharp/11.aspnet/02.api/08.api-design-validation",{"title":768,"path":769,"stem":770},"Обробка помилок у Minimal API","/csharp/aspnet/api/error-handling-http","01.csharp/11.aspnet/02.api/09.error-handling-http",{"title":772,"path":773,"stem":774},"Ідемпотентність та синхронізація стану","/csharp/aspnet/api/idempotency-sync","01.csharp/11.aspnet/02.api/10.idempotency-sync",{"title":776,"path":777,"stem":778},"Пагінація та організація списків","/csharp/aspnet/api/pagination-lists","01.csharp/11.aspnet/02.api/11.pagination-lists",{"title":780,"path":781,"stem":782},"Безпека API, кешування та інтернаціоналізація","/csharp/aspnet/api/security-auth","01.csharp/11.aspnet/02.api/12.security-auth",{"title":784,"path":785,"stem":786},"Процес проєктування API та документування","/csharp/aspnet/api/api-design-process","01.csharp/11.aspnet/02.api/13.api-design-process",{"title":788,"path":789,"stem":790},"OpenAPI: контракт, специфікація та документація API","/csharp/aspnet/api/openapi","01.csharp/11.aspnet/02.api/14.openapi",{"title":792,"icon":793,"path":794,"stem":795,"children":796,"page":59},"Auth","i-lucide-shield-check","/csharp/aspnet/auth","01.csharp/11.aspnet/03.auth",[797,801,805,809,813,817,821,825,829,833,837,841,845,849,853,857,861,865],{"title":798,"path":799,"stem":800},"Основи аутентифікації та авторизації","/csharp/aspnet/auth/auth-fundamentals","01.csharp/11.aspnet/03.auth/01.auth-fundamentals",{"title":802,"path":803,"stem":804},"JWT-аутентифікація","/csharp/aspnet/auth/jwt-authentication","01.csharp/11.aspnet/03.auth/02.jwt-authentication",{"title":806,"path":807,"stem":808},"Авторизація: ролі, політики та resource-based доступ","/csharp/aspnet/auth/authorization-policies","01.csharp/11.aspnet/03.auth/03.authorization-policies",{"title":810,"path":811,"stem":812},"Cookie-аутентифікація та ASP.NET Core Identity","/csharp/aspnet/auth/cookie-auth-identity","01.csharp/11.aspnet/03.auth/04.cookie-auth-identity",{"title":814,"path":815,"stem":816},"JWT + Refresh Tokens (HttpOnly Cookie)","/csharp/aspnet/auth/04b.identity-auth-jwt","01.csharp/11.aspnet/03.auth/04b.identity-auth-jwt",{"title":818,"path":819,"stem":820},"Identity: Підтвердження Email та Скидання Пароля","/csharp/aspnet/auth/identity-email-confirmation","01.csharp/11.aspnet/03.auth/05.identity-email-confirmation",{"title":822,"path":823,"stem":824},"Identity: Двофакторна Аутентифікація (2FA)","/csharp/aspnet/auth/identity-two-factor","01.csharp/11.aspnet/03.auth/06.identity-two-factor",{"title":826,"path":827,"stem":828},"Identity: Внутрішня Архітектура та Кастомізація","/csharp/aspnet/auth/identity-internals","01.csharp/11.aspnet/03.auth/07.identity-internals",{"title":830,"path":831,"stem":832},"OAuth 2.0 та зовнішні провайдери","/csharp/aspnet/auth/oauth-external-providers","01.csharp/11.aspnet/03.auth/08.oauth-external-providers",{"title":834,"path":835,"stem":836},"Безпека на практиці: CORS, HTTPS та захист від атак","/csharp/aspnet/auth/security-hardening","01.csharp/11.aspnet/03.auth/09.security-hardening",{"title":838,"path":839,"stem":840},"Теорія OAuth 2.0: Поняття, Аналогії та Флоу","/csharp/aspnet/auth/oauth-theory","01.csharp/11.aspnet/03.auth/10.oauth-theory",{"title":842,"path":843,"stem":844},"OIDC, OAuth 2.0 та Keycloak в ASP.NET Core","/csharp/aspnet/auth/oidc-keycloak","01.csharp/11.aspnet/03.auth/10.oidc-keycloak",{"title":846,"path":847,"stem":848},"API Keys аутентифікація в ASP.NET Core","/csharp/aspnet/auth/api-keys","01.csharp/11.aspnet/03.auth/11.api-keys",{"title":850,"path":851,"stem":852},"Rate Limiting та Throttling в ASP.NET Core","/csharp/aspnet/auth/rate-limiting","01.csharp/11.aspnet/03.auth/12.rate-limiting",{"title":854,"path":855,"stem":856},"Refresh Token Rotation в ASP.NET Core","/csharp/aspnet/auth/refresh-token-rotation","01.csharp/11.aspnet/03.auth/13.refresh-token-rotation",{"title":858,"path":859,"stem":860},"Certificate Authentication та mTLS в ASP.NET Core","/csharp/aspnet/auth/certificate-auth","01.csharp/11.aspnet/03.auth/14.certificate-auth",{"title":862,"path":863,"stem":864},"RBAC, ABAC та ReBAC в ASP.NET Core","/csharp/aspnet/auth/rbac-abac-rebac","01.csharp/11.aspnet/03.auth/15.rbac-abac-rebac",{"title":866,"path":867,"stem":868},"Multi-tenancy та ізоляція даних в ASP.NET Core","/csharp/aspnet/auth/multi-tenancy","01.csharp/11.aspnet/03.auth/16.multi-tenancy",{"title":870,"icon":871,"path":872,"stem":873,"children":874,"page":59},"Нотифікації","i-lucide-bell","/csharp/aspnet/notifications","01.csharp/11.aspnet/04.notifications",[875,879,883,887,891,895,899,903,907,911,915,919,923],{"title":876,"path":877,"stem":878},"In-App нотифікації через базу даних","/csharp/aspnet/notifications/in-app-database-notifications","01.csharp/11.aspnet/04.notifications/01.in-app-database-notifications",{"title":880,"path":881,"stem":882},"Polling: Регулярний запит оновлень","/csharp/aspnet/notifications/polling","01.csharp/11.aspnet/04.notifications/02.polling",{"title":884,"path":885,"stem":886},"Server-Sent Events: Однострімовий push від сервера","/csharp/aspnet/notifications/server-sent-events","01.csharp/11.aspnet/04.notifications/03.server-sent-events",{"title":888,"path":889,"stem":890},"WebSockets: Двостороннє з'єднання в реальному часі","/csharp/aspnet/notifications/websockets","01.csharp/11.aspnet/04.notifications/04.websockets",{"title":892,"path":893,"stem":894},"SignalR: Абстракція над транспортами реального часу","/csharp/aspnet/notifications/signalr","01.csharp/11.aspnet/04.notifications/05.signalr",{"title":896,"path":897,"stem":898},"Background Services: Фонові задачі в ASP.NET Core","/csharp/aspnet/notifications/background-services","01.csharp/11.aspnet/04.notifications/06.background-services",{"title":900,"path":901,"stem":902},"Web Push нотифікації","/csharp/aspnet/notifications/web-push","01.csharp/11.aspnet/04.notifications/07.web-push",{"title":904,"path":905,"stem":906},"Email нотифікації","/csharp/aspnet/notifications/email-notifications","01.csharp/11.aspnet/04.notifications/08.email-notifications",{"title":908,"path":909,"stem":910},"Порівняння підходів: Як вибрати правильну технологію нотифікацій","/csharp/aspnet/notifications/choosing-the-right-approach","01.csharp/11.aspnet/04.notifications/09.choosing-the-right-approach",{"title":912,"path":913,"stem":914},"Hangfire: Надійне планування фонових задач","/csharp/aspnet/notifications/hangfire","01.csharp/11.aspnet/04.notifications/10.hangfire",{"title":916,"path":917,"stem":918},"Практика: Конвертація зображень у WebP через Hangfire","/csharp/aspnet/notifications/hangfire-image-webp","01.csharp/11.aspnet/04.notifications/11.hangfire-image-webp",{"title":920,"path":921,"stem":922},"Практика: Підготовка відео до HLS-стрімінгу через Hangfire","/csharp/aspnet/notifications/hangfire-video-hls","01.csharp/11.aspnet/04.notifications/12.hangfire-video-hls",{"title":924,"path":925,"stem":926},"Telegram-нотифікації: від одного повідомлення до масових розсилок і мульти-канального підходу","/csharp/aspnet/notifications/telegram-notifications","01.csharp/11.aspnet/04.notifications/13.telegram-notifications",{"title":928,"icon":929,"path":930,"stem":931,"children":932,"page":59},"Інтернаціоналізація","i-lucide-languages","/csharp/aspnet/i18n","01.csharp/11.aspnet/05.i18n",[933,937],{"title":934,"path":935,"stem":936},"Інтернаціоналізація (i18n) у Minimal API: від A до Я","/csharp/aspnet/i18n/internationalization","01.csharp/11.aspnet/05.i18n/01.internationalization",{"title":938,"path":939,"stem":940},"Humanizer: людиномовні рядки у .NET","/csharp/aspnet/i18n/humanizer","01.csharp/11.aspnet/05.i18n/02.humanizer",{"title":942,"icon":943,"path":944,"stem":945,"children":946,"page":59},"Кешування","i-lucide-layers","/csharp/aspnet/caching","01.csharp/11.aspnet/06.caching",[947,951,955,959,963],{"title":948,"path":949,"stem":950},"Огляд кешування: чотири рівні і коли що обирати","/csharp/aspnet/caching/caching","01.csharp/11.aspnet/06.caching/01.caching",{"title":952,"path":953,"stem":954},"IMemoryCache: кеш в оперативній пам'яті","/csharp/aspnet/caching/memory-cache","01.csharp/11.aspnet/06.caching/02.memory-cache",{"title":956,"path":957,"stem":958},"IDistributedCache і Redis: розподілений кеш","/csharp/aspnet/caching/distributed-cache","01.csharp/11.aspnet/06.caching/03.distributed-cache",{"title":960,"path":961,"stem":962},"Response Cache: HTTP-кешування через Cache-Control","/csharp/aspnet/caching/response-cache","01.csharp/11.aspnet/06.caching/04.response-cache",{"title":964,"path":965,"stem":966},"Output Cache: серверний кеш HTTP-відповідей (.NET 7+)","/csharp/aspnet/caching/output-cache","01.csharp/11.aspnet/06.caching/05.output-cache",{"title":968,"icon":969,"path":970,"stem":971,"children":972,"page":59},"Тестування","i-lucide-test-tube","/csharp/aspnet/testing","01.csharp/11.aspnet/07.testing",[973,977,981,985,989,993,997,1001,1005,1009,1013,1017,1021,1025,1029,1033,1037,1041,1045,1049,1053],{"title":974,"path":975,"stem":976},"Що таке тестування? Від інтуїції до науки","/csharp/aspnet/testing/what-is-testing","01.csharp/11.aspnet/07.testing/01.what-is-testing",{"title":978,"path":979,"stem":980},"Піраміда тестування — Стратегія, а не Догма","/csharp/aspnet/testing/testing-pyramid","01.csharp/11.aspnet/07.testing/02.testing-pyramid",{"title":982,"path":983,"stem":984},"Дві Школи Тестування — Лондон проти Детройту","/csharp/aspnet/testing/testing-schools","01.csharp/11.aspnet/07.testing/03.testing-schools",{"title":986,"path":987,"stem":988},"TDD та BDD — Тести як Дизайн-інструмент","/csharp/aspnet/testing/tdd-and-bdd","01.csharp/11.aspnet/07.testing/04.tdd-and-bdd",{"title":990,"path":991,"stem":992},"Що саме тестувати — Техніки аналізу та Циклomatична складність","/csharp/aspnet/testing/what-to-test","01.csharp/11.aspnet/07.testing/05.what-to-test",{"title":994,"path":995,"stem":996},"Тестові Фреймворки — Навіщо вони і що всередині","/csharp/aspnet/testing/test-frameworks","01.csharp/11.aspnet/07.testing/06.test-frameworks",{"title":998,"path":999,"stem":1000},"xUnit — Факти, Теорії та Lifecycle тестів","/csharp/aspnet/testing/xunit-basics","01.csharp/11.aspnet/07.testing/07.xunit-basics",{"title":1002,"path":1003,"stem":1004},"xUnit Advanced — Fixtures, Кастомізація та Розширення","/csharp/aspnet/testing/xunit-advanced","01.csharp/11.aspnet/07.testing/08.xunit-advanced",{"title":1006,"path":1007,"stem":1008},"Moq — Глибоке занурення в мокування","/csharp/aspnet/testing/mocking-with-moq","01.csharp/11.aspnet/07.testing/09.mocking-with-moq",{"title":1010,"path":1011,"stem":1012},"Тестування Баз Даних — EF Core, SQLite та Testcontainers","/csharp/aspnet/testing/database-testing","01.csharp/11.aspnet/07.testing/10.database-testing",{"title":1014,"path":1015,"stem":1016},"Integration Testing — Частина 1 [Теорія та WebApplicationFactory]","/csharp/aspnet/testing/integration-testing","01.csharp/11.aspnet/07.testing/11.integration-testing",{"title":1018,"path":1019,"stem":1020},"Інтеграційне тестування — Практика","/csharp/aspnet/testing/11a.integration-testing-practice","01.csharp/11.aspnet/07.testing/11a.integration-testing-practice",{"title":1022,"path":1023,"stem":1024},"Integration Testing — Частина 2 [Просунуті Сценарії та Testcontainers]","/csharp/aspnet/testing/integration-testing-advanced","01.csharp/11.aspnet/07.testing/12.integration-testing-advanced",{"title":1026,"path":1027,"stem":1028},"Професійний Postman: Колекції, Змінні та GitHub Інтеграція","/csharp/aspnet/testing/postman-professional","01.csharp/11.aspnet/07.testing/13.postman-professional",{"title":1030,"path":1031,"stem":1032},"HttpClient у Тестах Частина 1: Архітектура та MockHttpMessageHandler","/csharp/aspnet/testing/httpclient-testing","01.csharp/11.aspnet/07.testing/14.httpclient-testing",{"title":1034,"path":1035,"stem":1036},"HttpClient у Тестах Частина 2: WireMock.Net та Resilience","/csharp/aspnet/testing/wiremock-net","01.csharp/11.aspnet/07.testing/15.wiremock-net",{"title":1038,"path":1039,"stem":1040},"Патерни та Анти-патерни Тестування: Test Smells","/csharp/aspnet/testing/testing-patterns","01.csharp/11.aspnet/07.testing/16.testing-patterns",{"title":1042,"path":1043,"stem":1044},"Просунуті інструменти: Time, Snapshots та Властивості","/csharp/aspnet/testing/advanced-testing-tools","01.csharp/11.aspnet/07.testing/17.advanced-testing-tools",{"title":1046,"path":1047,"stem":1048},"Тестування Архітектури з NetArchTest","/csharp/aspnet/testing/architecture-testing","01.csharp/11.aspnet/07.testing/18.architecture-testing",{"title":1050,"path":1051,"stem":1052},"Тестування Продуктивності: BenchmarkDotNet, NBomber та k6","/csharp/aspnet/testing/performance-testing","01.csharp/11.aspnet/07.testing/19.performance-testing",{"title":1054,"path":1055,"stem":1056},"Залишок плану для курсу \"Тестування ASP.NET Minimal API\"","/csharp/aspnet/testing/remaining_plan","01.csharp/11.aspnet/07.testing/remaining_plan",{"title":1058,"icon":1059,"path":1060,"stem":1061,"children":1062,"page":59},"Платежі","i-lucide-credit-card","/csharp/aspnet/payments","01.csharp/11.aspnet/08.payments",[1063,1067,1071,1075,1079,1083,1087,1091,1095,1099,1103,1107],{"title":1064,"path":1065,"stem":1066},"Основи платіжної інфраструктури","/csharp/aspnet/payments/payment-fundamentals","01.csharp/11.aspnet/08.payments/01.payment-fundamentals",{"title":1068,"path":1069,"stem":1070},"Методи оплати в Україні","/csharp/aspnet/payments/payment-methods-ukraine","01.csharp/11.aspnet/08.payments/02.payment-methods-ukraine",{"title":1072,"path":1073,"stem":1074},"PCI DSS та безпека платежів","/csharp/aspnet/payments/pci-dss-security","01.csharp/11.aspnet/08.payments/03.pci-dss-security",{"title":1076,"path":1077,"stem":1078},"Архітектура платіжної підсистеми","/csharp/aspnet/payments/payment-architecture","01.csharp/11.aspnet/08.payments/04.payment-architecture",{"title":1080,"path":1081,"stem":1082},"Інтеграція LiqPay (ПриватБанк)","/csharp/aspnet/payments/liqpay-integration","01.csharp/11.aspnet/08.payments/05.liqpay-integration",{"title":1084,"path":1085,"stem":1086},"Інтеграція Monobank Acquiring API","/csharp/aspnet/payments/monobank-acquiring","01.csharp/11.aspnet/08.payments/06.monobank-acquiring",{"title":1088,"path":1089,"stem":1090},"Інтеграція Stripe","/csharp/aspnet/payments/stripe-integration","01.csharp/11.aspnet/08.payments/07.stripe-integration",{"title":1092,"path":1093,"stem":1094},"Webhooks — глибоке занурення","/csharp/aspnet/payments/webhooks-deep-dive","01.csharp/11.aspnet/08.payments/08.webhooks-deep-dive",{"title":1096,"path":1097,"stem":1098},"Підписки та рекурентні платежі","/csharp/aspnet/payments/subscriptions-recurring","01.csharp/11.aspnet/08.payments/09.subscriptions-recurring",{"title":1100,"path":1101,"stem":1102},"Повернення коштів та диспути","/csharp/aspnet/payments/refunds-disputes","01.csharp/11.aspnet/08.payments/10.refunds-disputes",{"title":1104,"path":1105,"stem":1106},"Тестування платіжних інтеграцій","/csharp/aspnet/payments/testing-payments","01.csharp/11.aspnet/08.payments/11.testing-payments",{"title":1108,"path":1109,"stem":1110},"Чекліст виходу в Production","/csharp/aspnet/payments/production-checklist","01.csharp/11.aspnet/08.payments/12.production-checklist",{"title":1112,"icon":1113,"items":1114,"path":1127,"stem":1128,"children":1129,"page":59},"Популярні бібліотеки","lucide:box",[1115,1116,1117,1118,1119,1120,1121,1122,1123,1124,1125,1126],"01.fluent-validation","02.mapster","03.erroror-result-pattern","04.serilog","05.mediatr","06.polly","07.health-checks","08.feature-management","09.fluent-email","10.quest-pdf","11.bogus","12.humanizer-guard","/csharp/aspnet/libraries","01.csharp/11.aspnet/09.libraries",[1130,1134,1138,1142,1146,1150,1154,1158,1162,1166,1170,1174,1178],{"title":1131,"path":1132,"stem":1133},"Валідація з FluentValidation в ASP.NET Core","/csharp/aspnet/libraries/fluent-validation","01.csharp/11.aspnet/09.libraries/01.fluent-validation",{"title":1135,"path":1136,"stem":1137},"Маппінг об","/csharp/aspnet/libraries/mapster","01.csharp/11.aspnet/09.libraries/02.mapster",{"title":1139,"path":1140,"stem":1141},"Обробка помилок з ErrorOr та Result Pattern в ASP.NET Core","/csharp/aspnet/libraries/erroror-result-pattern","01.csharp/11.aspnet/09.libraries/03.erroror-result-pattern",{"title":1143,"path":1144,"stem":1145},"Структуроване логування з Serilog в ASP.NET Core","/csharp/aspnet/libraries/serilog","01.csharp/11.aspnet/09.libraries/04.serilog",{"title":1147,"path":1148,"stem":1149},"CQRS та Mediator з MediatR в ASP.NET Core","/csharp/aspnet/libraries/mediatr","01.csharp/11.aspnet/09.libraries/05.mediatr",{"title":1151,"path":1152,"stem":1153},"Відмовостійкість з Polly в ASP.NET Core","/csharp/aspnet/libraries/polly","01.csharp/11.aspnet/09.libraries/06.polly",{"title":1155,"path":1156,"stem":1157},"Health Checks в ASP.NET Core","/csharp/aspnet/libraries/health-checks","01.csharp/11.aspnet/09.libraries/07.health-checks",{"title":1159,"path":1160,"stem":1161},"Feature Management та Feature Flags в ASP.NET Core","/csharp/aspnet/libraries/feature-management","01.csharp/11.aspnet/09.libraries/08.feature-management",{"title":1163,"path":1164,"stem":1165},"Відправка Email з FluentEmail в ASP.NET Core","/csharp/aspnet/libraries/fluent-email","01.csharp/11.aspnet/09.libraries/09.fluent-email",{"title":1167,"path":1168,"stem":1169},"Генерація PDF з QuestPDF в ASP.NET Core","/csharp/aspnet/libraries/quest-pdf","01.csharp/11.aspnet/09.libraries/10.quest-pdf",{"title":1171,"path":1172,"stem":1173},"Генерація тестових даних з Bogus в ASP.NET Core","/csharp/aspnet/libraries/bogus","01.csharp/11.aspnet/09.libraries/11.bogus",{"title":1175,"path":1176,"stem":1177},"Humanizer та Guard Clauses в ASP.NET Core","/csharp/aspnet/libraries/humanizer-guard","01.csharp/11.aspnet/09.libraries/12.humanizer-guard",{"title":1179,"path":1180,"stem":1181},"План модуля 10.libraries — Популярні бібліотеки ASP.NET","/csharp/aspnet/libraries/plan","01.csharp/11.aspnet/09.libraries/plan",{"title":1183,"icon":1184,"path":1185,"stem":1186,"children":1187,"page":59},"Razor Pages","i-lucide-layout-template","/csharp/aspnet/razor-pages","01.csharp/11.aspnet/10.razor-pages",[1188,1192,1196,1200,1204,1208],{"title":1189,"path":1190,"stem":1191},"Від Minimal API до Razor Pages: концептуальний перехід","/csharp/aspnet/razor-pages/from-minimal-api","01.csharp/11.aspnet/10.razor-pages/01.from-minimal-api",{"title":1193,"path":1194,"stem":1195},"PageModel: логіка сторінки Razor Pages","/csharp/aspnet/razor-pages/page-model","01.csharp/11.aspnet/10.razor-pages/02.page-model",{"title":1197,"path":1198,"stem":1199},"Razor синтаксис: шаблонізатор у .cshtml","/csharp/aspnet/razor-pages/razor-syntax","01.csharp/11.aspnet/10.razor-pages/03.razor-syntax",{"title":1201,"path":1202,"stem":1203},"Tag Helpers: типізований HTML","/csharp/aspnet/razor-pages/tag-helpers","01.csharp/11.aspnet/10.razor-pages/04.tag-helpers",{"title":1205,"path":1206,"stem":1207},"Форми і валідація: повний цикл обробки даних","/csharp/aspnet/razor-pages/forms-validation","01.csharp/11.aspnet/10.razor-pages/05.forms-validation",{"title":1209,"path":1210,"stem":1211},"Практичний проєкт: TaskManager на Razor Pages","/csharp/aspnet/razor-pages/project-task-manager","01.csharp/11.aspnet/10.razor-pages/06.project-task-manager",{"title":1213,"path":1214,"stem":1215,"children":1216,"page":59},"ASP.NET Core MVC","/csharp/aspnet/mvc","01.csharp/11.aspnet/11.mvc",[1217,1221,1225,1229,1233,1237,1241,1245,1249,1253,1257,1261,1265,1269,1273,1277,1281,1285],{"title":1218,"path":1219,"stem":1220},"Патерн MVC: архітектура, що змінила веб","/csharp/aspnet/mvc/mvc-pattern","01.csharp/11.aspnet/11.mvc/01.mvc-pattern",{"title":1222,"path":1223,"stem":1224},"Від Razor Pages до MVC: концептуальний перехід","/csharp/aspnet/mvc/from-razor-pages","01.csharp/11.aspnet/11.mvc/02.from-razor-pages",{"title":1226,"path":1227,"stem":1228},"Controllers та Actions: серце MVC","/csharp/aspnet/mvc/controllers-actions","01.csharp/11.aspnet/11.mvc/03.controllers-actions",{"title":1230,"path":1231,"stem":1232},"Маршрутизація в MVC: Convention vs Attribute Routing","/csharp/aspnet/mvc/routing-mvc","01.csharp/11.aspnet/11.mvc/04.routing-mvc",{"title":1234,"path":1235,"stem":1236},"Model Binding: від HTTP до C#","/csharp/aspnet/mvc/model-binding","01.csharp/11.aspnet/11.mvc/05.model-binding",{"title":1238,"path":1239,"stem":1240},"Views, ViewData, ViewBag, TempData і ViewModel","/csharp/aspnet/mvc/views-viewdata-tempdata","01.csharp/11.aspnet/11.mvc/06.views-viewdata-tempdata",{"title":1242,"path":1243,"stem":1244},"Filters: аспектно-орієнтоване програмування в MVC","/csharp/aspnet/mvc/filters","01.csharp/11.aspnet/11.mvc/07.filters",{"title":1246,"path":1247,"stem":1248},"Areas: структурування великих застосунків","/csharp/aspnet/mvc/areas","01.csharp/11.aspnet/11.mvc/08.areas",{"title":1250,"path":1251,"stem":1252},"View Components: повторювані незалежні блоки UI","/csharp/aspnet/mvc/view-components","01.csharp/11.aspnet/11.mvc/09.view-components",{"title":1254,"path":1255,"stem":1256},"Display та Editor Templates","/csharp/aspnet/mvc/display-editor-templates","01.csharp/11.aspnet/11.mvc/10.display-editor-templates",{"title":1258,"path":1259,"stem":1260},"Валідація: IValidatableObject та FluentValidation","/csharp/aspnet/mvc/validation-advanced","01.csharp/11.aspnet/11.mvc/11.validation-advanced",{"title":1262,"path":1263,"stem":1264},"HTMX: інтерактивність через HTML-атрибути","/csharp/aspnet/mvc/htmx","01.csharp/11.aspnet/11.mvc/12.htmx",{"title":1266,"path":1267,"stem":1268},"HTMX у ASP.NET Core MVC: серверна інтеграція","/csharp/aspnet/mvc/ajax-htmx-mvc","01.csharp/11.aspnet/11.mvc/13.ajax-htmx-mvc",{"title":1270,"path":1271,"stem":1272},"Практичний проєкт: Каталог товарів з HTMX","/csharp/aspnet/mvc/htmx-project","01.csharp/11.aspnet/11.mvc/14.htmx-project",{"title":1274,"path":1275,"stem":1276},"Завантаження та обробка файлів","/csharp/aspnet/mvc/file-upload","01.csharp/11.aspnet/11.mvc/15.file-upload",{"title":1278,"path":1279,"stem":1280},"Глобалізація та Локалізація MVC","/csharp/aspnet/mvc/globalization-localization","01.csharp/11.aspnet/11.mvc/16.globalization-localization",{"title":1282,"path":1283,"stem":1284},"Підсумковий проєкт: Блог-платформа","/csharp/aspnet/mvc/mvc-project","01.csharp/11.aspnet/11.mvc/17.mvc-project",{"title":1286,"path":1287,"stem":1288},"План курсу: ASP.NET Core MVC","/csharp/aspnet/mvc/plan","01.csharp/11.aspnet/11.mvc/plan",{"title":1290,"path":1291,"stem":1292,"children":1293,"page":59},"Web Api","/csharp/aspnet/web-api","01.csharp/11.aspnet/12.web-api",[1294,1298,1302,1306,1310,1314,1318,1322,1326,1330,1334,1338,1342],{"title":1295,"path":1296,"stem":1297},"Від Minimal API до Controller-based API","/csharp/aspnet/web-api/from-minimal-api-to-controllers","01.csharp/11.aspnet/12.web-api/01.from-minimal-api-to-controllers",{"title":1299,"path":1300,"stem":1301},"ControllerBase, ActionResult\u003CT> та Response Types","/csharp/aspnet/web-api/controller-base-actionresult","01.csharp/11.aspnet/12.web-api/02.controller-base-actionresult",{"title":1303,"path":1304,"stem":1305},"Content Negotiation - JSON, XML та власні форматери","/csharp/aspnet/web-api/content-negotiation","01.csharp/11.aspnet/12.web-api/03.content-negotiation",{"title":1307,"path":1308,"stem":1309},"Версіонування API","/csharp/aspnet/web-api/api-versioning","01.csharp/11.aspnet/12.web-api/04.api-versioning",{"title":1311,"path":1312,"stem":1313},"ProblemDetails та структурована обробка помилок","/csharp/aspnet/web-api/problemdetails-error-handling","01.csharp/11.aspnet/12.web-api/05.problemdetails-error-handling",{"title":1315,"path":1316,"stem":1317},"Фільтри у Web API контексті","/csharp/aspnet/web-api/filters-for-api","01.csharp/11.aspnet/12.web-api/06.filters-for-api",{"title":1319,"path":1320,"stem":1321},"Пагінація, фільтрація та сортування","/csharp/aspnet/web-api/pagination-filtering-sorting","01.csharp/11.aspnet/12.web-api/07.pagination-filtering-sorting",{"title":1323,"path":1324,"stem":1325},"HATEOAS та Resource Expansion","/csharp/aspnet/web-api/hateoas-resource-expansion","01.csharp/11.aspnet/12.web-api/08.hateoas-resource-expansion",{"title":1327,"path":1328,"stem":1329},"Гібридна архітектура - Minimal API + Controllers","/csharp/aspnet/web-api/minimal-api-vs-controllers-hybrid","01.csharp/11.aspnet/12.web-api/09.minimal-api-vs-controllers-hybrid",{"title":1331,"path":1332,"stem":1333},"Документація API - Swashbuckle, NSwag та генерація клієнтів","/csharp/aspnet/web-api/api-documentation-generation","01.csharp/11.aspnet/12.web-api/10.api-documentation-generation",{"title":1335,"path":1336,"stem":1337},"Health Checks та моніторинг API","/csharp/aspnet/web-api/health-checks-monitoring","01.csharp/11.aspnet/12.web-api/11.health-checks-monitoring",{"title":1339,"path":1340,"stem":1341},"Підсумковий проєкт - Production-Ready REST API","/csharp/aspnet/web-api/web-api-project","01.csharp/11.aspnet/12.web-api/12.web-api-project",{"title":1343,"path":1344,"stem":1345},"План курсу: ASP.NET Core Web API (Controllers)","/csharp/aspnet/web-api/plan","01.csharp/11.aspnet/12.web-api/plan",{"title":1347,"icon":1348,"path":1349,"stem":1350,"children":1351,"page":59},"Desktop UI","i-lucide-app-window","/csharp/desktop-ui","01.csharp/12.desktop-ui",[1352,1356,1360,1364,1368,1372,1376,1380,1384,1388,1392,1396,1400,1404,1408,1412,1416,1420,1424,1428,1432,1436,1440,1444,1448,1452,1456,1460,1464,1468,1472,1476,1480,1484,1488,1492,1496,1500,1504,1508,1512,1516,1520,1524,1528,1532,1536,1540,1544,1548,1552,1556,1560,1564,1568,1572,1576,1580,1584,1588,1592,1596,1600,1604,1608,1612,1616,1620,1624,1628,1632],{"title":1353,"path":1354,"stem":1355},"Що таке десктопна розробка?","/csharp/desktop-ui/what-is-desktop-dev","01.csharp/12.desktop-ui/01.what-is-desktop-dev",{"title":1357,"path":1358,"stem":1359},"Архітектура WPF — як влаштований графічний інтерфейс","/csharp/desktop-ui/wpf-architecture","01.csharp/12.desktop-ui/02.wpf-architecture",{"title":1361,"path":1362,"stem":1363},"Перший WPF-проєкт — від нуля до вікна","/csharp/desktop-ui/first-wpf-app","01.csharp/12.desktop-ui/03.first-wpf-app",{"title":1365,"path":1366,"stem":1367},"Перший Avalonia-проєкт: WPF для всіх платформ","/csharp/desktop-ui/03a.first-avalonia-app","01.csharp/12.desktop-ui/03a.first-avalonia-app",{"title":1369,"path":1370,"stem":1371},"XAML: декларативний інтерфейс","/csharp/desktop-ui/xaml-basics","01.csharp/12.desktop-ui/04.xaml-basics",{"title":1373,"path":1374,"stem":1375},"Fluent UI у WPF — сучасний дизайн Windows 11","/csharp/desktop-ui/04a.wpf-fluent-ui","01.csharp/12.desktop-ui/04a.wpf-fluent-ui",{"title":1377,"path":1378,"stem":1379},"WPF UI — сучасна бібліотека Fluent контролів","/csharp/desktop-ui/04b.wpf-ui-library","01.csharp/12.desktop-ui/04b.wpf-ui-library",{"title":1381,"path":1382,"stem":1383},"HandyControl — велика бібліотека UI контролів для WPF","/csharp/desktop-ui/04c.handycontrol-library","01.csharp/12.desktop-ui/04c.handycontrol-library",{"title":1385,"path":1386,"stem":1387},"Простори імен та ресурси XAML","/csharp/desktop-ui/xaml-namespaces-resources","01.csharp/12.desktop-ui/05.xaml-namespaces-resources",{"title":1389,"path":1390,"stem":1391},"XAML в Avalonia: ключові відмінності від WPF","/csharp/desktop-ui/05a.avalonia-xaml-differences","01.csharp/12.desktop-ui/05a.avalonia-xaml-differences",{"title":1393,"path":1394,"stem":1395},"Розширення розмітки XAML (Markup Extensions)","/csharp/desktop-ui/xaml-markup-extensions","01.csharp/12.desktop-ui/06.xaml-markup-extensions",{"title":1397,"path":1398,"stem":1399},"Панелі Layout: StackPanel, WrapPanel, DockPanel","/csharp/desktop-ui/layout-panels-part1","01.csharp/12.desktop-ui/07.layout-panels-part1",{"title":1401,"path":1402,"stem":1403},"Grid, Canvas, UniformGrid","/csharp/desktop-ui/layout-panels-part2","01.csharp/12.desktop-ui/07.layout-panels-part2",{"title":1405,"path":1406,"stem":1407},"Просунуті техніки Layout","/csharp/desktop-ui/layout-advanced","01.csharp/12.desktop-ui/08.layout-advanced",{"title":1409,"path":1410,"stem":1411},"Адаптивний Layout та найкращі практики","/csharp/desktop-ui/layout-responsive","01.csharp/12.desktop-ui/09.layout-responsive",{"title":1413,"path":1414,"stem":1415},"Layout в Avalonia: відмінності та нові можливості","/csharp/desktop-ui/09a.layout-avalonia","01.csharp/12.desktop-ui/09a.layout-avalonia",{"title":1417,"path":1418,"stem":1419},"Button, Image, ProgressBar та інші базові контроли","/csharp/desktop-ui/basic-controls","01.csharp/12.desktop-ui/10.basic-controls",{"title":1421,"path":1422,"stem":1423},"Контроли в Avalonia: відмінності від WPF","/csharp/desktop-ui/10a.controls-avalonia","01.csharp/12.desktop-ui/10a.controls-avalonia",{"title":1425,"path":1426,"stem":1427},"Текстові контроли — TextBlock, TextBox, RichTextBox","/csharp/desktop-ui/text-controls","01.csharp/12.desktop-ui/11.text-controls",{"title":1429,"path":1430,"stem":1431},"Контроли вибору — CheckBox, RadioButton, ComboBox, ListBox, DatePicker","/csharp/desktop-ui/selection-controls","01.csharp/12.desktop-ui/12.selection-controls",{"title":1433,"path":1434,"stem":1435},"Content Model — GroupBox, Expander, TabControl, StatusBar","/csharp/desktop-ui/content-controls","01.csharp/12.desktop-ui/13.content-controls",{"title":1437,"path":1438,"stem":1439},"UI/UX принципи десктопних застосунків","/csharp/desktop-ui/13a.ui-ux-principles","01.csharp/12.desktop-ui/13a.ui-ux-principles",{"title":1441,"path":1442,"stem":1443},"Dependency Properties — Концепція та Value Resolution","/csharp/desktop-ui/dependency-properties-part1","01.csharp/12.desktop-ui/14.dependency-properties-part1",{"title":1445,"path":1446,"stem":1447},"Avalonia Property System — StyledProperty та DirectProperty","/csharp/desktop-ui/14a.avalonia-property-system","01.csharp/12.desktop-ui/14a.avalonia-property-system",{"title":1449,"path":1450,"stem":1451},"Attached Properties — Властивості без меж","/csharp/desktop-ui/attached-properties","01.csharp/12.desktop-ui/15.attached-properties",{"title":1453,"path":1454,"stem":1455},"Routed Events — Маршрутизація подій у WPF","/csharp/desktop-ui/routed-events","01.csharp/12.desktop-ui/16.routed-events",{"title":1457,"path":1458,"stem":1459},"Data Binding — Від Code-Behind до Декларативності","/csharp/desktop-ui/data-binding-basics-part1","01.csharp/12.desktop-ui/17.data-binding-basics-part1",{"title":1461,"path":1462,"stem":1463},"INotifyPropertyChanged — Живе оновлення UI","/csharp/desktop-ui/data-binding-basics-part2","01.csharp/12.desktop-ui/17.data-binding-basics-part2",{"title":1465,"path":1466,"stem":1467},"Compiled Bindings в Avalonia — Безпека на етапі компіляції","/csharp/desktop-ui/17a.avalonia-compiled-bindings","01.csharp/12.desktop-ui/17a.avalonia-compiled-bindings",{"title":1469,"path":1470,"stem":1471},"Просунутий Data Binding — ElementName, RelativeSource, MultiBinding","/csharp/desktop-ui/data-binding-advanced","01.csharp/12.desktop-ui/18.data-binding-advanced",{"title":1473,"path":1474,"stem":1475},"Value Converters — Перетворення типів даних у Data Binding","/csharp/desktop-ui/value-converters","01.csharp/12.desktop-ui/19.value-converters",{"title":1477,"path":1478,"stem":1479},"Data Templates — Візуалізація об'єктів у WPF","/csharp/desktop-ui/data-templates","01.csharp/12.desktop-ui/20.data-templates",{"title":1481,"path":1482,"stem":1483},"Collections Binding Part 1 — ObservableCollection та ItemsControl","/csharp/desktop-ui/collections-binding-part1","01.csharp/12.desktop-ui/21.collections-binding-part1",{"title":1485,"path":1486,"stem":1487},"Collections Binding Part 2 — ICollectionView, Filtering, Sorting та Virtualization","/csharp/desktop-ui/collections-binding-part2","01.csharp/12.desktop-ui/21.collections-binding-part2",{"title":1489,"path":1490,"stem":1491},"MVVM Pattern — Від Spaghetti Code до архітектури","/csharp/desktop-ui/mvvm-pattern","01.csharp/12.desktop-ui/22.mvvm-pattern",{"title":1493,"path":1494,"stem":1495},"ViewModel Implementation — Від BaseViewModel до валідації","/csharp/desktop-ui/viewmodel-implementation","01.csharp/12.desktop-ui/23.viewmodel-implementation",{"title":1497,"path":1498,"stem":1499},"Commands — Від event handlers до декларативних команд","/csharp/desktop-ui/commands","01.csharp/12.desktop-ui/24.commands",{"title":1501,"path":1502,"stem":1503},"MVVM Toolkit — MVVM без boilerplate через Source Generators","/csharp/desktop-ui/mvvm-toolkit","01.csharp/12.desktop-ui/25.mvvm-toolkit",{"title":1505,"path":1506,"stem":1507},"Messenger Pattern — Комунікація між ViewModel без прямих посилань","/csharp/desktop-ui/messenger-pattern","01.csharp/12.desktop-ui/26.messenger-pattern",{"title":1509,"path":1510,"stem":1511},"Стилі WPF — CSS для десктопу","/csharp/desktop-ui/styles-basics","01.csharp/12.desktop-ui/27.styles-basics",{"title":1513,"path":1514,"stem":1515},"CSS-like стилі Avalonia","/csharp/desktop-ui/27a.avalonia-css-styling","01.csharp/12.desktop-ui/27a.avalonia-css-styling",{"title":1517,"path":1518,"stem":1519},"Control Templates — Частина 1. Концепція та TemplateBinding","/csharp/desktop-ui/control-templates-part1","01.csharp/12.desktop-ui/28.control-templates-part1",{"title":1521,"path":1522,"stem":1523},"Control Templates — Частина 2. Named Parts та ContentPresenter","/csharp/desktop-ui/control-templates-part2","01.csharp/12.desktop-ui/28.control-templates-part2",{"title":1525,"path":1526,"stem":1527},"Control Themes в Avalonia — нова ера стилізації","/csharp/desktop-ui/28a.avalonia-control-themes","01.csharp/12.desktop-ui/28a.avalonia-control-themes",{"title":1529,"path":1530,"stem":1531},"Triggers та Visual State Manager у WPF","/csharp/desktop-ui/triggers-visual-states","01.csharp/12.desktop-ui/29.triggers-visual-states",{"title":1533,"path":1534,"stem":1535},"Pseudo-classes в Avalonia — замість WPF Triggers","/csharp/desktop-ui/29a.avalonia-pseudo-classes","01.csharp/12.desktop-ui/29a.avalonia-pseudo-classes",{"title":1537,"path":1538,"stem":1539},"Теми та ресурсні словники у WPF","/csharp/desktop-ui/resources-themes","01.csharp/12.desktop-ui/30.resources-themes",{"title":1541,"path":1542,"stem":1543},"Avalonia Themes — Fluent Design та система тематизації","/csharp/desktop-ui/30a.avalonia-themes-fluent","01.csharp/12.desktop-ui/30a.avalonia-themes-fluent",{"title":1545,"path":1546,"stem":1547},"Контроли колекцій — глибоке занурення","/csharp/desktop-ui/collection-controls","01.csharp/12.desktop-ui/31.collection-controls",{"title":1549,"path":1550,"stem":1551},"DataGrid — колонки та базове відображення","/csharp/desktop-ui/datagrid-part1","01.csharp/12.desktop-ui/32.datagrid-part1",{"title":1553,"path":1554,"stem":1555},"DataGrid — сортування, фільтрація, редагування","/csharp/desktop-ui/datagrid-part2","01.csharp/12.desktop-ui/32.datagrid-part2",{"title":1557,"path":1558,"stem":1559},"TreeView та GridView","/csharp/desktop-ui/treeview-listview","01.csharp/12.desktop-ui/33.treeview-listview",{"title":1561,"path":1562,"stem":1563},"Меню, Toolbar, ContextMenu, StatusBar","/csharp/desktop-ui/menus-toolbars","01.csharp/12.desktop-ui/34.menus-toolbars",{"title":1565,"path":1566,"stem":1567},"Навігація та керування вікнами. Частина 1: вікна та сторінки","/csharp/desktop-ui/navigation-windows-part1","01.csharp/12.desktop-ui/35.navigation-windows-part1",{"title":1569,"path":1570,"stem":1571},"Навігація та керування вікнами. Частина 2: MVVM-навігація","/csharp/desktop-ui/navigation-windows-part2","01.csharp/12.desktop-ui/35.navigation-windows-part2",{"title":1573,"path":1574,"stem":1575},"Avalonia — Навігація та діалоги","/csharp/desktop-ui/35a.avalonia-navigation-dialogs","01.csharp/12.desktop-ui/35a.avalonia-navigation-dialogs",{"title":1577,"path":1578,"stem":1579},"Діалоги та File Pickers у WPF","/csharp/desktop-ui/dialogs-file-pickers","01.csharp/12.desktop-ui/36.dialogs-file-pickers",{"title":1581,"path":1582,"stem":1583},"UserControl: компонентний підхід у WPF","/csharp/desktop-ui/user-controls","01.csharp/12.desktop-ui/37.user-controls",{"title":1585,"path":1586,"stem":1587},"Custom Controls: Lookless Controls у WPF","/csharp/desktop-ui/custom-controls","01.csharp/12.desktop-ui/38.custom-controls",{"title":1589,"path":1590,"stem":1591},"Avalonia TemplatedControl — Lookless Controls","/csharp/desktop-ui/38a.avalonia-templated-controls","01.csharp/12.desktop-ui/38a.avalonia-templated-controls",{"title":1593,"path":1594,"stem":1595},"Анімації у WPF: Storyboard та Easing Functions","/csharp/desktop-ui/animations-transitions","01.csharp/12.desktop-ui/39.animations-transitions",{"title":1597,"path":1598,"stem":1599},"Анімації в Avalonia","/csharp/desktop-ui/39a.avalonia-animations","01.csharp/12.desktop-ui/39a.avalonia-animations",{"title":1601,"path":1602,"stem":1603},"2D Графіка та Мультимедіа у WPF","/csharp/desktop-ui/media-graphics","01.csharp/12.desktop-ui/40.media-graphics",{"title":1605,"path":1606,"stem":1607},"Dependency Injection у WPF та Avalonia","/csharp/desktop-ui/di-integration","01.csharp/12.desktop-ui/41.di-integration",{"title":1609,"path":1610,"stem":1611},"SQLite та EF Core у десктопних додатках","/csharp/desktop-ui/data-persistence-part1","01.csharp/12.desktop-ui/42.data-persistence-part1",{"title":1613,"path":1614,"stem":1615},"Repository Pattern та Unit of Work","/csharp/desktop-ui/data-persistence-part2","01.csharp/12.desktop-ui/43.data-persistence-part2",{"title":1617,"path":1618,"stem":1619},"Тестування ViewModels","/csharp/desktop-ui/viewmodel-testing","01.csharp/12.desktop-ui/44.viewmodel-testing",{"title":1621,"path":1622,"stem":1623},"Avalonia Headless Testing — тестування UI без вікон","/csharp/desktop-ui/44a.avalonia-headless-testing","01.csharp/12.desktop-ui/44a.avalonia-headless-testing",{"title":1625,"path":1626,"stem":1627},"Кросплатформна розробка з Avalonia","/csharp/desktop-ui/avalonia-cross-platform","01.csharp/12.desktop-ui/45.avalonia-cross-platform",{"title":1629,"path":1630,"stem":1631},"Пакування та розгортання Avalonia додатків","/csharp/desktop-ui/avalonia-packaging-deployment","01.csharp/12.desktop-ui/46.avalonia-packaging-deployment",{"title":1633,"path":1634,"stem":1635},"Розгортання WPF застосунків","/csharp/desktop-ui/wpf-packaging-deployment","01.csharp/12.desktop-ui/47.wpf-packaging-deployment",{"title":1637,"path":1638,"stem":1639},"C# & .NET: The Ultimate Roadmap","/csharp/roadmap","01.csharp/roadmap",{"title":1641,"icon":1642,"path":1643,"stem":1644,"children":1645,"page":59},"C++","i-devicon-cplusplus","/cpp","02.cpp",[1646,1650,1654,1658,1662,1666,1670,1674,1678,1681,1685,1689,1693,1697,1701,1705,1709,1713,1717,1721,1725,1729,1733,1737,1741,1745,1749,1753,1757,1761],{"title":1647,"path":1648,"stem":1649},"Вступ у програмування та алгоритми","/cpp/intro-algorithms","02.cpp/01.intro-algorithms",{"title":1651,"path":1652,"stem":1653},"Code Style: угоди про оформлення коду","/cpp/code-style","02.cpp/02.code-style",{"title":1655,"path":1656,"stem":1657},"Середовище розробки та перший 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типу void","/cpp/void-pointers","02.cpp/20.void-pointers",{"title":1726,"path":1727,"stem":1728},"Вказівники на вказівники","/cpp/pointers-to-pointers","02.cpp/21.pointers-to-pointers",{"title":1730,"path":1731,"stem":1732},"Оператор доступу до членів через вказівник (->)","/cpp/member-access-operator","02.cpp/22.member-access-operator",{"title":1734,"path":1735,"stem":1736},"Цикл for-each (Range-based for)","/cpp/foreach-loop","02.cpp/23.foreach-loop",{"title":1738,"path":1739,"stem":1740},"Вказівники на функції","/cpp/function-pointers","02.cpp/24.function-pointers",{"title":1742,"path":1743,"stem":1744},"Лямбда-вирази","/cpp/lambdas","02.cpp/25.lambdas",{"title":1746,"path":1747,"stem":1748},"Лямбда-захоплення","/cpp/lambda-captures","02.cpp/26.lambda-captures",{"title":1750,"path":1751,"stem":1752},"Еліпсис","/cpp/ellipsis","02.cpp/27.ellipsis",{"title":1754,"path":1755,"stem":1756},"Аргументи командного рядка","/cpp/command-line-arguments","02.cpp/28.command-line-arguments",{"title":1758,"path":1759,"stem":1760},"Перерахування (enum)","/cpp/enum","02.cpp/29.enum",{"title":1762,"path":1763,"stem":1764},"План навчання: Курс C++ — Продовження (Статті 29–60+)","/cpp/curriculum-plan","02.cpp/curriculum-plan",{"title":1766,"icon":1767,"path":1768,"stem":1769,"children":1770,"page":59},"JavaScript","i-devicon-javascript","/javascript","03.javascript",[1771,1797,1851,1873,2177,2215],{"title":1772,"icon":1773,"path":1774,"stem":1775,"children":1776,"page":59},"Events","i-lucide-mouse-pointer-click","/javascript/events","03.javascript/01.events",[1777,1781,1785,1789,1793],{"title":1778,"path":1779,"stem":1780},"Вступ до подій браузера","/javascript/events/intro","03.javascript/01.events/01.intro",{"title":1782,"path":1783,"stem":1784},"Бульбашковий механізм (Bubbling) та занурення (Capturing)","/javascript/events/bubbling-capturing","03.javascript/01.events/02.bubbling-capturing",{"title":1786,"path":1787,"stem":1788},"Делегування подій (Event Delegation)","/javascript/events/delegate-events","03.javascript/01.events/03.delegate-events",{"title":1790,"path":1791,"stem":1792},"Типові дії браузера та preventDefault()","/javascript/events/prevent-default","03.javascript/01.events/04.prevent-default",{"title":1794,"path":1795,"stem":1796},"Запуск користувацьких подій (Custom Events)","/javascript/events/custom-events","03.javascript/01.events/05.custom-events",{"title":1798,"icon":1799,"path":1800,"stem":1801,"children":1802,"page":59},"Network","i-lucide-globe","/javascript/network","03.javascript/02.network",[1803,1807,1811,1815,1819,1823,1827,1831,1835,1839,1843,1847],{"title":1804,"path":1805,"stem":1806},"Fetch API - Сучасний підхід до HTTP-запитів","/javascript/network/01-fetch-api","03.javascript/02.network/01-fetch-api",{"title":1808,"path":1809,"stem":1810},"FormData - Робота з формами та файлами","/javascript/network/02-formdata","03.javascript/02.network/02-formdata",{"title":1812,"path":1813,"stem":1814},"Відстеження прогресу завантаження","/javascript/network/03-download-progress","03.javascript/02.network/03-download-progress",{"title":1816,"path":1817,"stem":1818},"Переривання fetch-запитів","/javascript/network/04-abort-requests","03.javascript/02.network/04-abort-requests",{"title":1820,"path":1821,"stem":1822},"CORS - Запити між різними джерелами","/javascript/network/05-cors","03.javascript/02.network/05-cors",{"title":1824,"path":1825,"stem":1826},"Fetch API - Повний довідник опцій","/javascript/network/06-fetch-options","03.javascript/02.network/06-fetch-options",{"title":1828,"path":1829,"stem":1830},"URL Objects - Робота з посиланнями","/javascript/network/07-url-objects","03.javascript/02.network/07-url-objects",{"title":1832,"path":1833,"stem":1834},"XMLHttpRequest - AJAX та низькорівневі запити","/javascript/network/08-xmlhttprequest","03.javascript/02.network/08-xmlhttprequest",{"title":1836,"path":1837,"stem":1838},"Відновлюване завантаження файлів","/javascript/network/09-resumable-upload","03.javascript/02.network/09-resumable-upload",{"title":1840,"path":1841,"stem":1842},"Cookies, document.cookie та світ після \"Cookiepocalypse\"","/javascript/network/10-cookies","03.javascript/02.network/10-cookies",{"title":1844,"path":1845,"stem":1846},"js-cookie: Керування Cookies без Болю","/javascript/network/11-js-cookie","03.javascript/02.network/11-js-cookie",{"title":1848,"path":1849,"stem":1850},"Axios: Потужний HTTP-клієнт для JavaScript","/javascript/network/12-axios","03.javascript/02.network/12-axios",{"title":1852,"icon":1853,"path":1854,"stem":1855,"children":1856,"page":59},"Bom","i-lucide-monitor","/javascript/bom","03.javascript/03.bom",[1857,1861,1865,1869],{"title":1858,"path":1859,"stem":1860},"LocalStorage, SessionStorage та patterns збереження даних","/javascript/bom/01-localstorage","03.javascript/03.bom/01-localstorage",{"title":1862,"path":1863,"stem":1864},"Location Object - Керування адресою сторінки","/javascript/bom/02-location-object","03.javascript/03.bom/02-location-object",{"title":1866,"path":1867,"stem":1868},"History API - Керування історією браузера","/javascript/bom/03-history-api","03.javascript/03.bom/03-history-api",{"title":1870,"path":1871,"stem":1872},"Navigator Object - Ідентифікація та Можливості Пристрою","/javascript/bom/04-navigator-object","03.javascript/03.bom/04-navigator-object",{"title":1874,"icon":1875,"path":1876,"stem":1877,"children":1878},"React","i-devicon-react","/javascript/react","03.javascript/04.react/index",[1879,1880,1884,1888,1892,1896,1959,1994,2146],{"title":1874,"path":1876,"stem":1877},{"title":1881,"path":1882,"stem":1883},"Робота з Формами в React","/javascript/react/react-forms","03.javascript/04.react/01.react-forms",{"title":1885,"path":1886,"stem":1887},"React Hook Form: Професійна Робота з Формами","/javascript/react/react-hook-form","03.javascript/04.react/02.react-hook-form",{"title":1889,"path":1890,"stem":1891},"React Hook Form: Глибоке Розуміння Архітектури та Оптимізації","/javascript/react/react-hook-form-new","03.javascript/04.react/02.react-hook-form-new",{"title":1893,"path":1894,"stem":1895},"Axios та React: Професійна Архітектура Запитів","/javascript/react/data-fetching-axios","03.javascript/04.react/03.data-fetching-axios",{"title":1897,"icon":132,"path":1898,"stem":1899,"children":1900},"Tanstack Query","/javascript/react/tanstack-query","03.javascript/04.react/04.tanstack-query/index",[1901,1903,1907,1911,1915,1919,1923,1927,1931,1935,1939,1943,1947,1951,1955],{"title":1902,"path":1898,"stem":1899},"TanStack Query: Майстерність Керування Станом Сервера",{"title":1904,"path":1905,"stem":1906},"Парадигма Server State: Чому useEffect недостатньо","/javascript/react/tanstack-query/server-state-paradigm","03.javascript/04.react/04.tanstack-query/01.server-state-paradigm",{"title":1908,"path":1909,"stem":1910},"Встановлення та Налаштування: Фундамент","/javascript/react/tanstack-query/installation-and-devtools","03.javascript/04.react/04.tanstack-query/02.installation-and-devtools",{"title":1912,"path":1913,"stem":1914},"Основи Запитів та Магія Ключів","/javascript/react/tanstack-query/query-basics-and-keys","03.javascript/04.react/04.tanstack-query/03.query-basics-and-keys",{"title":1916,"path":1917,"stem":1918},"Синхронізація Даних: Життєвий Цикл Запиту","/javascript/react/tanstack-query/data-synchronization","03.javascript/04.react/04.tanstack-query/04.data-synchronization",{"title":1920,"path":1921,"stem":1922},"Мутації та Інвалідація: Зміна Даних","/javascript/react/tanstack-query/mutations-and-invalidation","03.javascript/04.react/04.tanstack-query/05.mutations-and-invalidation",{"title":1924,"path":1925,"stem":1926},"Оптимістичні Оновлення: Швидше за Світло","/javascript/react/tanstack-query/optimistic-updates","03.javascript/04.react/04.tanstack-query/06.optimistic-updates",{"title":1928,"path":1929,"stem":1930},"Пагінація та Infinite Scroll","/javascript/react/tanstack-query/pagination-and-load-more","03.javascript/04.react/04.tanstack-query/07.pagination-and-load-more",{"title":1932,"path":1933,"stem":1934},"Просунуті Патерни та Оптимізація","/javascript/react/tanstack-query/advanced-patterns","03.javascript/04.react/04.tanstack-query/08.advanced-patterns",{"title":1936,"path":1937,"stem":1938},"Архітектура та Best Practices","/javascript/react/tanstack-query/architecture-and-best-practices","03.javascript/04.react/04.tanstack-query/09.architecture-and-best-practices",{"title":1940,"path":1941,"stem":1942},"Server-Side Rendering (SSR) та Гідратація","/javascript/react/tanstack-query/server-side-rendering","03.javascript/04.react/04.tanstack-query/10.server-side-rendering",{"title":1944,"path":1945,"stem":1946},"Стратегії Тестування","/javascript/react/tanstack-query/testing-strategies","03.javascript/04.react/04.tanstack-query/11.testing-strategies",{"title":1948,"path":1949,"stem":1950},"Аутентифікація та Обробка Помилок","/javascript/react/tanstack-query/authentication-and-errors","03.javascript/04.react/04.tanstack-query/12.authentication-and-errors",{"title":1952,"path":1953,"stem":1954},"React Suspense та Майбутнє","/javascript/react/tanstack-query/react-suspense","03.javascript/04.react/04.tanstack-query/13.react-suspense",{"title":1956,"path":1957,"stem":1958},"Глибоке Занурення в Продуктивність","/javascript/react/tanstack-query/performance-deep-dive","03.javascript/04.react/04.tanstack-query/14.performance-deep-dive",{"title":1960,"icon":1875,"path":1961,"stem":1962,"children":1963},"React Router","/javascript/react/react-router","03.javascript/04.react/05.react-router/index",[1964,1966,1970,1974,1978,1982,1986,1990],{"title":1965,"path":1961,"stem":1962},"React Router: Навігаційна система сучасного вебу",{"title":1967,"path":1968,"stem":1969},"Налаштування та Базовий Роутинг","/javascript/react/react-router/setup-and-basic-routing","03.javascript/04.react/05.react-router/01.setup-and-basic-routing",{"title":1971,"path":1972,"stem":1973},"Динамічна Навігація","/javascript/react/react-router/navigation-and-links","03.javascript/04.react/05.react-router/02.navigation-and-links",{"title":1975,"path":1976,"stem":1977},"Вкладені Маршрути та Макети","/javascript/react/react-router/nested-routes-and-layouts","03.javascript/04.react/05.react-router/03.nested-routes-and-layouts",{"title":1979,"path":1980,"stem":1981},"Динамічні Маршрути та Параметри","/javascript/react/react-router/dynamic-routing","03.javascript/04.react/05.react-router/04.dynamic-routing",{"title":1983,"path":1984,"stem":1985},"Data APIs: Loaders та Actions","/javascript/react/react-router/data-loading","03.javascript/04.react/05.react-router/05.data-loading",{"title":1987,"path":1988,"stem":1989},"Просунуті Патерни","/javascript/react/react-router/advanced-patterns","03.javascript/04.react/05.react-router/06.advanced-patterns",{"title":1991,"path":1992,"stem":1993},"Legacy Routing: Компонентний підхід","/javascript/react/react-router/legacy-routing","03.javascript/04.react/05.react-router/07.legacy-routing",{"title":1995,"icon":132,"path":1996,"stem":1997,"children":1998},"Redux","/javascript/react/redux","03.javascript/04.react/06.redux/index",[1999,2001,2017,2046,2055,2076,2092,2121],{"title":2000,"path":1996,"stem":1997},"Redux: Еволюція управління станом",{"title":14,"icon":15,"path":2002,"stem":2003,"children":2004,"page":59},"/javascript/react/redux/fundamentals","03.javascript/04.react/06.redux/01.fundamentals",[2005,2009,2013],{"title":2006,"path":2007,"stem":2008},"Вступ до State Management","/javascript/react/redux/fundamentals/intro-state-management","03.javascript/04.react/06.redux/01.fundamentals/01.intro-state-management",{"title":2010,"path":2011,"stem":2012},"Філософія Redux та Три Принципи","/javascript/react/redux/fundamentals/redux-philosophy","03.javascript/04.react/06.redux/01.fundamentals/02.redux-philosophy",{"title":2014,"path":2015,"stem":2016},"Чисті функції та Іммутабельність","/javascript/react/redux/fundamentals/pure-functions-immutability","03.javascript/04.react/06.redux/01.fundamentals/03.pure-functions-immutability",{"title":2018,"icon":132,"path":2019,"stem":2020,"children":2021,"page":59},"Classic Redux","/javascript/react/redux/classic-redux","03.javascript/04.react/06.redux/02.classic-redux",[2022,2026,2030,2034,2038,2042],{"title":2023,"path":2024,"stem":2025},"Створення Store (Classic Redux)","/javascript/react/redux/classic-redux/store-setup","03.javascript/04.react/06.redux/02.classic-redux/01.store-setup",{"title":2027,"path":2028,"stem":2029},"Actions, Constants та Action Creators","/javascript/react/redux/classic-redux/actions-constants","03.javascript/04.react/06.redux/02.classic-redux/02.actions-constants",{"title":2031,"path":2032,"stem":2033},"Логіка Reducers","/javascript/react/redux/classic-redux/reducers","03.javascript/04.react/06.redux/02.classic-redux/03.reducers",{"title":2035,"path":2036,"stem":2037},"Комбінування Reducers (Root Reducer)","/javascript/react/redux/classic-redux/data-flow","03.javascript/04.react/06.redux/02.classic-redux/04.data-flow",{"title":2039,"path":2040,"stem":2041},"Підключення до React (React-Redux)","/javascript/react/redux/classic-redux/react-redux-connection","03.javascript/04.react/06.redux/02.classic-redux/05.react-redux-connection",{"title":2043,"path":2044,"stem":2045},"Middleware та Асинхронність (Redux Thunk)","/javascript/react/redux/classic-redux/middleware-thunk","03.javascript/04.react/06.redux/02.classic-redux/06.middleware-thunk",{"title":2047,"icon":132,"path":2048,"stem":2049,"children":2050,"page":59},"Transition To Rtk","/javascript/react/redux/transition-to-rtk","03.javascript/04.react/06.redux/03.transition-to-rtk",[2051],{"title":2052,"path":2053,"stem":2054},"Проблеми класичного Redux","/javascript/react/redux/transition-to-rtk/problems-with-classic","03.javascript/04.react/06.redux/03.transition-to-rtk/01.problems-with-classic",{"title":2056,"icon":132,"path":2057,"stem":2058,"children":2059,"page":59},"Redux Toolkit","/javascript/react/redux/redux-toolkit","03.javascript/04.react/06.redux/04.redux-toolkit",[2060,2064,2068,2072],{"title":2061,"path":2062,"stem":2063},"Налаштування Store з 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дружити","/java/pr2/impedance-mismatch","04.java/pr2/09.impedance-mismatch",{"title":2285,"path":2286,"stem":2287},"JDBC: Перший контакт із базою даних","/java/pr2/jdbc-fundamentals","04.java/pr2/10.jdbc-fundamentals",{"title":2289,"path":2290,"stem":2291},"Якість коду: Spotless, SpotBugs та SonarQube","/java/pr2/10a.code-quality","04.java/pr2/10a.code-quality",{"title":2293,"path":2294,"stem":2295},"Connection Pool: Патерн Object Pool для JDBC-з'єднань","/java/pr2/connection-pool","04.java/pr2/11.connection-pool",{"title":2297,"path":2298,"stem":2299},"Row Data Gateway: Об'єкт як обгортка рядка таблиці","/java/pr2/row-data-gateway","04.java/pr2/12.row-data-gateway",{"title":2301,"path":2302,"stem":2303},"Table Data Gateway: Фасад таблиці як архітектурний відступ","/java/pr2/table-data-gateway","04.java/pr2/13.table-data-gateway",{"title":2305,"path":2306,"stem":2307},"Repository + Data Mapper: Правильна шарова архітектура з JDBC","/java/pr2/repository-data-mapper","04.java/pr2/14.repository-data-mapper",{"title":2309,"path":2310,"stem":2311},"Identity Map: Кешування сутностей у рамках сесії","/java/pr2/identity-map","04.java/pr2/15.identity-map",{"title":2313,"path":2314,"stem":2315},"Unit of Work: Відстеження змін і координація JDBC-транзакцій","/java/pr2/unit-of-work","04.java/pr2/16.unit-of-work",{"title":2317,"path":2318,"stem":2319},"Strategy: Замінювані SQL-стратегії для підтримки різних СУБД","/java/pr2/strategy-sql","04.java/pr2/17.strategy-sql",{"title":2321,"path":2322,"stem":2323},"Proxy: Lazy Loading для One-To-Many колекцій","/java/pr2/proxy-lazy-loading","04.java/pr2/18.proxy-lazy-loading",{"title":2325,"path":2326,"stem":2327},"Generic Repository через Java Reflection: анотації та динамічний SQL","/java/pr2/generic-repository-reflection","04.java/pr2/19.generic-repository-reflection",{"title":2329,"path":2330,"stem":2331},"Specification Pattern: Композиція бізнес-правил для складних 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БД","/databases/intro/logical-schema","06.databases/01.intro/04.logical-schema",{"title":2381,"path":2382,"stem":2383},"Класифікація таблиць","/databases/intro/table-classification","06.databases/01.intro/05.table-classification",{"title":2385,"path":2386,"stem":2387},"PlantUML для баз даних","/databases/intro/plantuml-diagrams","06.databases/01.intro/06.plantuml-diagrams",{"title":2389,"icon":2354,"path":2390,"stem":2391,"children":2392,"page":59},"MS SQL Server Start","/databases/ms-sql-server-start","06.databases/02.ms-sql-server-start",[2393,2397,2403,2407],{"title":2394,"path":2395,"stem":2396},"Типи даних у MS SQL Server","/databases/ms-sql-server-start/data-types","06.databases/02.ms-sql-server-start/01.data-types",{"title":2398,"path":2399,"stem":2400,"children":2401},"Індекси у MS SQL 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TABLE)","/databases/sql/ddl-create-table","06.databases/03.sql/01.ddl-create-table",{"title":2425,"path":2426,"stem":2427},"DDL - Зміна та видалення таблиць (ALTER, DROP)","/databases/sql/ddl-alter-drop-table","06.databases/03.sql/02.ddl-alter-drop-table",{"title":2429,"path":2430,"stem":2431},"SELECT запити - Основи","/databases/sql/select-queries-fundamentals","06.databases/03.sql/03.select-queries-fundamentals",{"title":2433,"path":2434,"stem":2435},"SELECT запити - Розширені можливості","/databases/sql/select-queries-advanced","06.databases/03.sql/04.select-queries-advanced",{"title":2437,"path":2438,"stem":2439},"INSERT запити - Додавання даних","/databases/sql/insert-queries","06.databases/03.sql/05.insert-queries",{"title":2441,"path":2442,"stem":2443},"UPDATE та DELETE запити","/databases/sql/update-delete-queries","06.databases/03.sql/06.update-delete-queries",{"title":2445,"path":2446,"stem":2447},"Транзакції в SQL","/databases/sql/transactions","06.databases/03.sql/07.transactions",{"title":2449,"icon":2354,"path":2450,"stem":2451,"children":2452,"page":59},"Multi Table Databases","/databases/multi-table-databases","06.databases/04.multi-table-databases",[2453,2457,2461,2465,2469,2473],{"title":2454,"path":2455,"stem":2456},"Зв'язки та нормалізація БД","/databases/multi-table-databases/relationships-and-normalization","06.databases/04.multi-table-databases/00.relationships-and-normalization",{"title":2458,"path":2459,"stem":2460},"INNER JOIN - З'єднання таблиць","/databases/multi-table-databases/inner-join","06.databases/04.multi-table-databases/01.inner-join",{"title":2462,"path":2463,"stem":2464},"OUTER JOINs - LEFT, RIGHT, FULL","/databases/multi-table-databases/outer-joins","06.databases/04.multi-table-databases/02.outer-joins",{"title":2466,"path":2467,"stem":2468},"CROSS та SELF JOINs","/databases/multi-table-databases/cross-self-joins","06.databases/04.multi-table-databases/03.cross-self-joins",{"title":2470,"path":2471,"stem":2472},"Підзапити (Subqueries)","/databases/multi-table-databases/subqueries","06.databases/04.multi-table-databases/04.subqueries",{"title":2474,"path":2475,"stem":2476},"Агрегації з JOIN","/databases/multi-table-databases/aggregations-with-joins","06.databases/04.multi-table-databases/05.aggregations-with-joins",{"title":2478,"icon":2479,"path":2480,"stem":2481,"children":2482,"page":59},"Aggregate Functions","i-lucide-calculator","/databases/aggregate-functions","06.databases/05.aggregate-functions",[2483,2487,2491],{"title":2484,"path":2485,"stem":2486},"Функції агрегування в MS SQL Server","/databases/aggregate-functions/introduction-aggregate-functions","06.databases/05.aggregate-functions/01.introduction-aggregate-functions",{"title":2488,"path":2489,"stem":2490},"Групування даних в MS SQL Server","/databases/aggregate-functions/grouping-data","06.databases/05.aggregate-functions/02.grouping-data",{"title":2492,"path":2493,"stem":2494},"Підзапити з агрегатними функціями","/databases/aggregate-functions/subqueries-aggregates","06.databases/05.aggregate-functions/03.subqueries-aggregates",{"title":2496,"icon":2497,"path":2498,"stem":2499,"children":2500,"page":59},"Тригери та зберігаємі процедури","i-lucide-database-zap","/databases/triggers-stored-procedures","06.databases/07.triggers-stored-procedures",[2501,2505,2509,2513,2517,2521,2525],{"title":2502,"path":2503,"stem":2504},"DML-тригери","/databases/triggers-stored-procedures/dml-triggers","06.databases/07.triggers-stored-procedures/01.dml-triggers",{"title":2506,"path":2507,"stem":2508},"DDL-тригери","/databases/triggers-stored-procedures/ddl-triggers","06.databases/07.triggers-stored-procedures/02.ddl-triggers",{"title":2510,"path":2511,"stem":2512},"Transact-SQL розширення","/databases/triggers-stored-procedures/transact-sql-extensions","06.databases/07.triggers-stored-procedures/03.transact-sql-extensions",{"title":2514,"path":2515,"stem":2516},"Транзакції","/databases/triggers-stored-procedures/transactions","06.databases/07.triggers-stored-procedures/04.transactions",{"title":2518,"path":2519,"stem":2520},"Зберігаємі процедури","/databases/triggers-stored-procedures/stored-procedures","06.databases/07.triggers-stored-procedures/05.stored-procedures",{"title":2522,"path":2523,"stem":2524},"Користувацькі функції","/databases/triggers-stored-procedures/user-defined-functions","06.databases/07.triggers-stored-procedures/06.user-defined-functions",{"title":2526,"path":2527,"stem":2528},"Безпека баз 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пошук","i-lucide-search","/databases/full-text-search","06.databases/10.full-text-search",[2556],{"title":2551,"path":2557,"stem":2558},"/databases/full-text-search/full-text-search","06.databases/10.full-text-search/01.full-text-search",{"title":2560,"icon":2561,"path":2562,"stem":2563,"children":2564,"page":59},"Tools","i-lucide-wrench","/tools","07.tools",[2565],{"title":2566,"icon":2567,"path":2568,"stem":2569,"children":2570},"Docker","i-simple-icons-docker","/tools/docker","07.tools/01.docker/index",[2571,2573,2577,2581,2585,2589,2593,2597,2601,2605,2609,2613,2617,2621,2625,2629,2633,2637],{"title":2572,"path":2568,"stem":2569},"Docker: від нуля до production",{"title":2574,"path":2575,"stem":2576},"Контейнеризація — від проблеми до рішення","/tools/docker/containerization-concept","07.tools/01.docker/01.containerization-concept",{"title":2578,"path":2579,"stem":2580},"Docker — що це і навіщо?","/tools/docker/docker-what-and-why","07.tools/01.docker/02.docker-what-and-why",{"title":2582,"path":2583,"stem":2584},"Архітектура Docker Engine","/tools/docker/docker-architecture","07.tools/01.docker/03.docker-architecture",{"title":2586,"path":2587,"stem":2588},"Встановлення Docker","/tools/docker/installation","07.tools/01.docker/04.installation",{"title":2590,"path":2591,"stem":2592},"Перший контейнер — docker run","/tools/docker/first-container","07.tools/01.docker/05.first-container",{"title":2594,"path":2595,"stem":2596},"Життєвий цикл контейнера","/tools/docker/container-lifecycle","07.tools/01.docker/06.container-lifecycle",{"title":2598,"path":2599,"stem":2600},"Docker Images — фундаментальні концепції","/tools/docker/docker-images-fundamentals","07.tools/01.docker/07.docker-images-fundamentals",{"title":2602,"path":2603,"stem":2604},"Dockerfile — основи","/tools/docker/dockerfile-basics","07.tools/01.docker/08.dockerfile-basics",{"title":2606,"path":2607,"stem":2608},"Dockerfile — просунуті техніки","/tools/docker/dockerfile-advanced","07.tools/01.docker/09.dockerfile-advanced",{"title":2610,"path":2611,"stem":2612},"Build Context та кешування шарів","/tools/docker/build-context-and-cache","07.tools/01.docker/10.build-context-and-cache",{"title":2614,"path":2615,"stem":2616},"Реєстри Docker-образів","/tools/docker/image-registries","07.tools/01.docker/11.image-registries",{"title":2618,"path":2619,"stem":2620},"Контейнеризація .NET додатків","/tools/docker/dotnet-containerization","07.tools/01.docker/12.dotnet-containerization",{"title":2622,"path":2623,"stem":2624},"Томи та збереження даних","/tools/docker/volumes-and-data","07.tools/01.docker/13.volumes-and-data",{"title":2626,"path":2627,"stem":2628},"Основи мережі в Docker","/tools/docker/networking-basics","07.tools/01.docker/14.networking-basics",{"title":2630,"path":2631,"stem":2632},"Змінні оточення та конфігурація","/tools/docker/environment-and-configuration","07.tools/01.docker/15.environment-and-configuration",{"title":2634,"path":2635,"stem":2636},"Docker Compose — оркестрація контейнерів","/tools/docker/docker-compose-basics","07.tools/01.docker/16.docker-compose-basics",{"title":2638,"path":2639,"stem":2640},"Docker Compose — Multi-Service застосунки","/tools/docker/compose-multi-service","07.tools/01.docker/17.compose-multi-service",{"title":2642,"icon":2643,"path":2644,"stem":2645,"children":2646,"page":59},"Software Engineering","i-lucide-code-2","/software-engineering","09.software-engineering",[2647,2651,2655,2659,2663,2667,2671,2675,2679,2683,2687],{"title":2648,"path":2649,"stem":2650},"1. 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Архітектурні Патерни","/ddd/architectural-patterns","10.ddd/08.architectural-patterns",{"title":2729,"path":2730,"stem":2731},"Глава 9. Патерни Взаємодії","/ddd/interaction-patterns","10.ddd/09.interaction-patterns",{"title":2733,"path":2734,"stem":2735},"Глава 10. Проектні Евристики","/ddd/design-heuristics","10.ddd/10.design-heuristics",{"title":2737,"path":2738,"stem":2739},"Глава 11. Еволюція Проектних Рішень","/ddd/evolution-of-design-decisions","10.ddd/11.evolution-of-design-decisions",{"title":2741,"path":2742,"stem":2743},"Глава 12. EventStorming","/ddd/event-storming","10.ddd/12.event-storming",{"title":2745,"path":2746,"stem":2747},"Глава 13. DDD на Практиці","/ddd/ddd-in-practice","10.ddd/13.ddd-in-practice",{"title":2749,"icon":2750,"path":2751,"stem":2752,"children":2753,"page":59},"Media Streaming","i-lucide-video","/media-streaming","11.media-streaming",[2754,2758,2762,2766,2770,2774,2778],{"title":2755,"path":2756,"stem":2757},"01. 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Війна із Затримкою (Latency)","/media-streaming/realtime-latency","11.media-streaming/07.realtime-latency",{"title":2783,"icon":2784,"path":2785,"stem":2786,"children":2787,"page":59},"HTML & CSS","i-devicon-html5","/html-css","12.html-css",[2788,2792,2796,2800,2804,2808,2812,2816,2820,2824,2828,2832,2836,2840,2844,2848,2852,2856,2860,2864,2868,2872,2876,2880,2884,2888,2892,2896,2900,2904],{"title":2789,"path":2790,"stem":2791},"Вступ до HTML. 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Селектори та специфічність","/html-css/css-intro-selectors","12.html-css/09.css-intro-selectors",{"title":2825,"path":2826,"stem":2827},"Блокова модель CSS. Відступи. Box Sizing","/html-css/css-box-model","12.html-css/10.css-box-model",{"title":2829,"path":2830,"stem":2831},"Розміри у CSS: повний довідник одиниць і ключових слів","/html-css/10a.css-sizing","12.html-css/10a.css-sizing",{"title":2833,"path":2834,"stem":2835},"Типографіка в CSS. Шрифти та текст","/html-css/css-typography","12.html-css/11.css-typography",{"title":2837,"path":2838,"stem":2839},"Кольори та фони в CSS","/html-css/css-colors-backgrounds","12.html-css/12.css-colors-backgrounds",{"title":2841,"path":2842,"stem":2843},"Тіні та фільтри в CSS","/html-css/12b.css-shadows-filters","12.html-css/12b.css-shadows-filters",{"title":2845,"path":2846,"stem":2847},"CSS Flexbox: Фундамент гнучких макетів","/html-css/css-flexbox-fundamentals","12.html-css/13.css-flexbox-fundamentals",{"title":2849,"path":2850,"stem":2851},"CSS Flexbox: Вирівнювання та Позиціонування","/html-css/css-flexbox-alignment-sizing-and-patterns","12.html-css/14.css-flexbox-alignment-sizing-and-patterns",{"title":2853,"path":2854,"stem":2855},"CSS Grid. Двовимірний макет. Частина 1","/html-css/css-layout-grid","12.html-css/15.css-layout-grid",{"title":2857,"path":2858,"stem":2859},"CSS Grid. Двовимірний макет. Частина 2","/html-css/css-layout-grid-advanced","12.html-css/16.css-layout-grid-advanced",{"title":2861,"path":2862,"stem":2863},"Позиціонування в CSS. Z-index. Stacking Context","/html-css/css-positioning","12.html-css/17.css-positioning",{"title":2865,"path":2866,"stem":2867},"CSS Анімації та Переходи","/html-css/css-animations-transitions","12.html-css/18.css-animations-transitions",{"title":2869,"path":2870,"stem":2871},"Адаптивний дизайн. Media Queries. Частина 1","/html-css/css-responsive-media-queries","12.html-css/19.css-responsive-media-queries",{"title":2873,"path":2874,"stem":2875},"Адаптивний дизайн. Частина 2: clamp(), Container Queries, @layer","/html-css/css-responsive-advanced","12.html-css/20.css-responsive-advanced",{"title":2877,"path":2878,"stem":2879},"CSS Custom Properties. Методології. Сучасний CSS","/html-css/css-variables-methodologies","12.html-css/21.css-variables-methodologies",{"title":2881,"path":2882,"stem":2883},"Сучасний CSS 2023–2025: Нові можливості","/html-css/css-modern-features","12.html-css/22.css-modern-features",{"title":2885,"path":2886,"stem":2887},"CSS Nesting, @layer, @scope та @property: нативний препроцесор","/html-css/22a.css-nesting-modern-syntax","12.html-css/22a.css-nesting-modern-syntax",{"title":2889,"path":2890,"stem":2891},"CSS для форм та інтерактивних станів","/html-css/css-forms-interactive-states","12.html-css/23.css-forms-interactive-states",{"title":2893,"path":2894,"stem":2895},"Доступність у CSS (CSS Accessibility)","/html-css/css-accessibility","12.html-css/24.css-accessibility",{"title":2897,"path":2898,"stem":2899},"CSS-функції та сучасні sizing primitives","/html-css/css-functions-sizing","12.html-css/25.css-functions-sizing",{"title":2901,"path":2902,"stem":2903},"Rendering Pipeline і CSS Performance","/html-css/css-rendering-performance","12.html-css/26.css-rendering-performance",{"title":2905,"path":2906,"stem":2907},"CSS Best Practices: типові ситуації та правильні рішення","/html-css/css-best-practices","12.html-css/27.css-best-practices",{"title":2909,"path":2910,"stem":2911,"children":2912,"page":59},"Tailwind","/tailwind","21.tailwind",[2913,2917,2921,2925,2929,2933,2937,2941],{"title":2914,"path":2915,"stem":2916},"Що таке Tailwind CSS і навіщо він потрібен","/tailwind/tailwind-intro-philosophy","21.tailwind/01.tailwind-intro-philosophy",{"title":2918,"path":2919,"stem":2920},"Встановлення та налаштування Tailwind CSS v4","/tailwind/tailwind-installation-setup","21.tailwind/02.tailwind-installation-setup",{"title":2922,"path":2923,"stem":2924},"Utility-класи: основи та система Tailwind","/tailwind/tailwind-utility-classes-core","21.tailwind/03.tailwind-utility-classes-core",{"title":2926,"path":2927,"stem":2928},"Layout: Flexbox та Grid через Tailwind","/tailwind/tailwind-flexbox-grid","21.tailwind/04.tailwind-flexbox-grid",{"title":2930,"path":2931,"stem":2932},"Кастомізація теми через @theme у Tailwind v4","/tailwind/tailwind-theme-customization","21.tailwind/05.tailwind-theme-customization",{"title":2934,"path":2935,"stem":2936},"Варіанти: hover, focus, responsive, dark mode та нові v4","/tailwind/tailwind-variants-states","21.tailwind/06.tailwind-variants-states",{"title":2938,"path":2939,"stem":2940},"Типографіка та система кольорів у Tailwind v4","/tailwind/tailwind-typography-colors","21.tailwind/07.tailwind-typography-colors",{"title":2942,"path":2943,"stem":2944},"Компоненти та повторюваність: @apply, @utility та патерни","/tailwind/tailwind-components-patterns","21.tailwind/08.tailwind-components-patterns",{"title":2946,"path":2947,"stem":2948},"Showcase Компонентів kostyl.dev","/test-new-components","98.test-new-components",{"id":2950,"title":2337,"body":2951,"description":15843,"extension":15844,"links":15845,"meta":15846,"navigation":3066,"path":2338,"seo":15847,"stem":2339,"__hash__":15848},"docs/04.java/pr2/21.asynchronous-jdbc.md",{"type":2952,"value":2953,"toc":15796},"minimark",[2954,2958,2963,2967,3228,3235,3243,3254,3257,3420,3437,3443,3457,3460,3464,3469,3475,3539,3545,3665,3669,3678,3830,3837,3937,3958,3960,3964,3971,4074,4079,4105,4112,4128,4130,4134,4151,4155,4158,4846,4853,4885,4887,4891,4901,6349,6354,6424,6459,6461,6465,6475,7048,7053,7323,7740,7749,7751,7755,7758,9018,9214,9219,9239,9314,9319,9362,9364,9368,9373,9377,9380,9597,9608,9627,9632,9820,9831,9833,9837,9840,10266,10274,10510,10664,10666,10670,10676,10893,10902,11122,11132,11192,11277,11279,11283,11294,11491,11517,11626,11630,11640,12102,12107,12115,12120,12127,12129,12133,12144,12636,12641,13016,13027,13038,13047,13049,13053,13056,13060,13066,13189,13199,13203,13261,13268,13582,13584,13588,13599,13707,13720,13731,13800,13822,13824,13828,13840,13953,13964,14062,14067,14244,14246,14250,14255,14281,14286,14427,14645,14647,14651,14654,14658,14696,14700,14749,14751,14755,14758,14878,14990,14992,14996,14999,15003,15013,15018,15072,15077,15294,15299,15313,15318,15332,15369,15371,15375,15378,15449,15451,15455,15721,15723,15727,15778,15780,15786,15792],[2955,2956,2337],"h1",{"id":2957},"асинхронність-у-jdbc-від-блокуючих-викликів-до-completablefuture",[2959,2960,2962],"h2",{"id":2961},"вступ-коли-кожен-запит-блокує-потік","Вступ: Коли кожен запит блокує потік",[2964,2965,2966],"p",{},"Повернімося до репозиторіїв зі статті 14. Розглянемо типовий сценарій: завантаження сторінки каталогу аудіокниг, де для кожної книги потрібно відобразити автора, жанр та рейтинг з окремих таблиць.",[2968,2969,2974],"pre",{"className":2970,"code":2971,"language":2972,"meta":2973,"style":2973},"language-java shiki shiki-themes light-plus dark-plus dark-plus","AudiobookRepository bookRepo   = new JdbcAudiobookRepository(cm);\nAuthorRepository    authorRepo = new JdbcAuthorRepository(cm);\nGenreRepository     genreRepo  = new JdbcGenreRepository(cm);\nRatingRepository    ratingRepo = new JdbcRatingRepository(cm);\n\n// Завантаження однієї книги з усіма пов'язаними даними\nAudiobook book = bookRepo.findById(bookId).orElseThrow();\n\n// Три послідовних блокуючих виклики\nAuthor author = authorRepo.findById(book.getAuthorId()).orElseThrow();  // 50ms\nGenre  genre  = genreRepo.findById(book.getGenreId()).orElseThrow();    // 30ms\nDouble rating = ratingRepo.getAverageRating(bookId);                     // 80ms\n\n// Загальний час: 50 + 30 + 80 = 160ms\n","java","",[2975,2976,2977,3005,3024,3043,3061,3068,3075,3104,3109,3115,3155,3192,3217,3222],"code",{"__ignoreMap":2973},[2978,2979,2982,2986,2990,2994,2998,3002],"span",{"class":2980,"line":2981},"line",1,[2978,2983,2985],{"class":2984},"sN1BT","AudiobookRepository",[2978,2987,2989],{"class":2988},"siwwj"," bookRepo",[2978,2991,2993],{"class":2992},"sHH4Y","   = ",[2978,2995,2997],{"class":2996},"sCDza","new",[2978,2999,3001],{"class":3000},"s8Opu"," JdbcAudiobookRepository",[2978,3003,3004],{"class":2992},"(cm);\n",[2978,3006,3008,3011,3014,3017,3019,3022],{"class":2980,"line":3007},2,[2978,3009,3010],{"class":2984},"AuthorRepository",[2978,3012,3013],{"class":2988},"    authorRepo",[2978,3015,3016],{"class":2992}," = ",[2978,3018,2997],{"class":2996},[2978,3020,3021],{"class":3000}," JdbcAuthorRepository",[2978,3023,3004],{"class":2992},[2978,3025,3027,3030,3033,3036,3038,3041],{"class":2980,"line":3026},3,[2978,3028,3029],{"class":2984},"GenreRepository",[2978,3031,3032],{"class":2988},"     genreRepo",[2978,3034,3035],{"class":2992},"  = ",[2978,3037,2997],{"class":2996},[2978,3039,3040],{"class":3000}," JdbcGenreRepository",[2978,3042,3004],{"class":2992},[2978,3044,3046,3049,3052,3054,3056,3059],{"class":2980,"line":3045},4,[2978,3047,3048],{"class":2984},"RatingRepository",[2978,3050,3051],{"class":2988},"    ratingRepo",[2978,3053,3016],{"class":2992},[2978,3055,2997],{"class":2996},[2978,3057,3058],{"class":3000}," JdbcRatingRepository",[2978,3060,3004],{"class":2992},[2978,3062,3064],{"class":2980,"line":3063},5,[2978,3065,3067],{"emptyLinePlaceholder":3066},true,"\n",[2978,3069,3071],{"class":2980,"line":3070},6,[2978,3072,3074],{"class":3073},"spJ8K","// Завантаження однієї книги з усіма пов'язаними даними\n",[2978,3076,3078,3081,3084,3086,3089,3092,3095,3098,3101],{"class":2980,"line":3077},7,[2978,3079,3080],{"class":2984},"Audiobook",[2978,3082,3083],{"class":2988}," book",[2978,3085,3016],{"class":2992},[2978,3087,3088],{"class":2988},"bookRepo",[2978,3090,3091],{"class":2992},".",[2978,3093,3094],{"class":3000},"findById",[2978,3096,3097],{"class":2992},"(bookId).",[2978,3099,3100],{"class":3000},"orElseThrow",[2978,3102,3103],{"class":2992},"();\n",[2978,3105,3107],{"class":2980,"line":3106},8,[2978,3108,3067],{"emptyLinePlaceholder":3066},[2978,3110,3112],{"class":2980,"line":3111},9,[2978,3113,3114],{"class":3073},"// Три послідовних блокуючих виклики\n",[2978,3116,3118,3121,3124,3126,3129,3131,3133,3136,3139,3141,3144,3147,3149,3152],{"class":2980,"line":3117},10,[2978,3119,3120],{"class":2984},"Author",[2978,3122,3123],{"class":2988}," author",[2978,3125,3016],{"class":2992},[2978,3127,3128],{"class":2988},"authorRepo",[2978,3130,3091],{"class":2992},[2978,3132,3094],{"class":3000},[2978,3134,3135],{"class":2992},"(",[2978,3137,3138],{"class":2988},"book",[2978,3140,3091],{"class":2992},[2978,3142,3143],{"class":3000},"getAuthorId",[2978,3145,3146],{"class":2992},"()).",[2978,3148,3100],{"class":3000},[2978,3150,3151],{"class":2992},"();  ",[2978,3153,3154],{"class":3073},"// 50ms\n",[2978,3156,3158,3161,3164,3166,3169,3171,3173,3175,3177,3179,3182,3184,3186,3189],{"class":2980,"line":3157},11,[2978,3159,3160],{"class":2984},"Genre",[2978,3162,3163],{"class":2988},"  genre",[2978,3165,3035],{"class":2992},[2978,3167,3168],{"class":2988},"genreRepo",[2978,3170,3091],{"class":2992},[2978,3172,3094],{"class":3000},[2978,3174,3135],{"class":2992},[2978,3176,3138],{"class":2988},[2978,3178,3091],{"class":2992},[2978,3180,3181],{"class":3000},"getGenreId",[2978,3183,3146],{"class":2992},[2978,3185,3100],{"class":3000},[2978,3187,3188],{"class":2992},"();    ",[2978,3190,3191],{"class":3073},"// 30ms\n",[2978,3193,3195,3198,3201,3203,3206,3208,3211,3214],{"class":2980,"line":3194},12,[2978,3196,3197],{"class":2984},"Double",[2978,3199,3200],{"class":2988}," rating",[2978,3202,3016],{"class":2992},[2978,3204,3205],{"class":2988},"ratingRepo",[2978,3207,3091],{"class":2992},[2978,3209,3210],{"class":3000},"getAverageRating",[2978,3212,3213],{"class":2992},"(bookId);                     ",[2978,3215,3216],{"class":3073},"// 80ms\n",[2978,3218,3220],{"class":2980,"line":3219},13,[2978,3221,3067],{"emptyLinePlaceholder":3066},[2978,3223,3225],{"class":2980,"line":3224},14,[2978,3226,3227],{"class":3073},"// Загальний час: 50 + 30 + 80 = 160ms\n",[2964,3229,3230,3231,3234],{},"Що відбувається під час виконання цього коду? Кожен виклик ",[2975,3232,3233],{},"findById()"," виконує наступну послідовність операцій:",[2968,3236,3241],{"className":3237,"code":3239,"language":3240},[3238],"language-text","authorRepo.findById():\n  1. Отримати Connection з пулу           (1-5ms)\n  2. Підготувати PreparedStatement        (1ms)\n  3. Відправити SQL до БД                 (network roundtrip)\n  4. Чекати на виконання SELECT           (БД виконує запит)\n  5. Отримати ResultSet                   (network roundtrip)\n  6. Змаппити рядок у об'єкт Author       (1ms)\n  7. Закрити ресурси, повернути Connection (1ms)\n  → Загалом: ~50ms\n","text",[2975,3242,3239],{"__ignoreMap":2973},[2964,3244,3245,3249,3250,3253],{},[3246,3247,3248],"strong",{},"Критична проблема:"," під час кроків 3–5 (відправка SQL → виконання → отримання результату) потік ",[3246,3251,3252],{},"блокується"," — він не виконує жодної корисної роботи, просто чекає на мережеву відповідь від БД. Якщо БД знаходиться на віддаленому сервері (типова ситуація у production), network roundtrip може займати 20–100ms.",[2964,3255,3256],{},"Для трьох послідовних запитів потік блокується тричі:",[3258,3259,3260],"mermaid",{},[2968,3261,3264],{"className":3262,"code":3263,"language":3258,"meta":2973,"style":2973},"language-mermaid shiki shiki-themes light-plus dark-plus dark-plus","sequenceDiagram\n    participant App as Потік додатку\n    participant Pool as Connection Pool\n    participant DB as База даних\n\n    Note over App: Запит 1: Author\n    App->>Pool: getConnection()\n    Pool-->>App: Connection\n    App->>DB: SELECT * FROM authors WHERE id=?\n    Note over App,DB: Потік БЛОКУЄТЬСЯ (50ms)\n    DB-->>App: ResultSet (1 рядок)\n    App->>Pool: close() → повернути Connection\n\n    Note over App: Запит 2: Genre\n    App->>Pool: getConnection()\n    Pool-->>App: Connection\n    App->>DB: SELECT * FROM genres WHERE id=?\n    Note over App,DB: Потік БЛОКУЄТЬСЯ (30ms)\n    DB-->>App: ResultSet (1 рядок)\n    App->>Pool: close() → повернути Connection\n\n    Note over App: Запит 3: Rating\n    App->>Pool: getConnection()\n    Pool-->>App: Connection\n    App->>DB: SELECT AVG(score) FROM ratings WHERE book_id=?\n    Note over App,DB: Потік БЛОКУЄТЬСЯ (80ms)\n    DB-->>App: ResultSet (1 рядок)\n    App->>Pool: close() → повернути Connection\n\n    Note over App: Загальний час: 160ms\u003Cbr/>Потік блокувався 3 рази\n",[2975,3265,3266,3271,3276,3281,3286,3290,3295,3300,3305,3310,3315,3320,3325,3329,3334,3339,3344,3350,3356,3361,3366,3371,3377,3382,3387,3393,3399,3404,3409,3414],{"__ignoreMap":2973},[2978,3267,3268],{"class":2980,"line":2981},[2978,3269,3270],{},"sequenceDiagram\n",[2978,3272,3273],{"class":2980,"line":3007},[2978,3274,3275],{},"    participant App as Потік додатку\n",[2978,3277,3278],{"class":2980,"line":3026},[2978,3279,3280],{},"    participant Pool as Connection Pool\n",[2978,3282,3283],{"class":2980,"line":3045},[2978,3284,3285],{},"    participant DB as База даних\n",[2978,3287,3288],{"class":2980,"line":3063},[2978,3289,3067],{"emptyLinePlaceholder":3066},[2978,3291,3292],{"class":2980,"line":3070},[2978,3293,3294],{},"    Note over App: Запит 1: Author\n",[2978,3296,3297],{"class":2980,"line":3077},[2978,3298,3299],{},"    App->>Pool: getConnection()\n",[2978,3301,3302],{"class":2980,"line":3106},[2978,3303,3304],{},"    Pool-->>App: Connection\n",[2978,3306,3307],{"class":2980,"line":3111},[2978,3308,3309],{},"    App->>DB: SELECT * FROM authors WHERE id=?\n",[2978,3311,3312],{"class":2980,"line":3117},[2978,3313,3314],{},"    Note over App,DB: Потік БЛОКУЄТЬСЯ (50ms)\n",[2978,3316,3317],{"class":2980,"line":3157},[2978,3318,3319],{},"    DB-->>App: ResultSet (1 рядок)\n",[2978,3321,3322],{"class":2980,"line":3194},[2978,3323,3324],{},"    App->>Pool: close() → повернути Connection\n",[2978,3326,3327],{"class":2980,"line":3219},[2978,3328,3067],{"emptyLinePlaceholder":3066},[2978,3330,3331],{"class":2980,"line":3224},[2978,3332,3333],{},"    Note over App: Запит 2: Genre\n",[2978,3335,3337],{"class":2980,"line":3336},15,[2978,3338,3299],{},[2978,3340,3342],{"class":2980,"line":3341},16,[2978,3343,3304],{},[2978,3345,3347],{"class":2980,"line":3346},17,[2978,3348,3349],{},"    App->>DB: SELECT * FROM genres WHERE id=?\n",[2978,3351,3353],{"class":2980,"line":3352},18,[2978,3354,3355],{},"    Note over App,DB: Потік БЛОКУЄТЬСЯ (30ms)\n",[2978,3357,3359],{"class":2980,"line":3358},19,[2978,3360,3319],{},[2978,3362,3364],{"class":2980,"line":3363},20,[2978,3365,3324],{},[2978,3367,3369],{"class":2980,"line":3368},21,[2978,3370,3067],{"emptyLinePlaceholder":3066},[2978,3372,3374],{"class":2980,"line":3373},22,[2978,3375,3376],{},"    Note over App: Запит 3: Rating\n",[2978,3378,3380],{"class":2980,"line":3379},23,[2978,3381,3299],{},[2978,3383,3385],{"class":2980,"line":3384},24,[2978,3386,3304],{},[2978,3388,3390],{"class":2980,"line":3389},25,[2978,3391,3392],{},"    App->>DB: SELECT AVG(score) FROM ratings WHERE book_id=?\n",[2978,3394,3396],{"class":2980,"line":3395},26,[2978,3397,3398],{},"    Note over App,DB: Потік БЛОКУЄТЬСЯ (80ms)\n",[2978,3400,3402],{"class":2980,"line":3401},27,[2978,3403,3319],{},[2978,3405,3407],{"class":2980,"line":3406},28,[2978,3408,3324],{},[2978,3410,3412],{"class":2980,"line":3411},29,[2978,3413,3067],{"emptyLinePlaceholder":3066},[2978,3415,3417],{"class":2980,"line":3416},30,[2978,3418,3419],{},"    Note over App: Загальний час: 160ms\u003Cbr/>Потік блокувався 3 рази\n",[2964,3421,3422,3423,3426,3427,3429,3430,3432,3433,3436],{},"Але ці три запити є ",[3246,3424,3425],{},"незалежними"," — результат запиту ",[2975,3428,3120],{}," не впливає на запит ",[2975,3431,3160],{},". Вони можуть виконуватися ",[3246,3434,3435],{},"паралельно",":",[2968,3438,3441],{"className":3439,"code":3440,"language":3240},[3238],"Ідеальний сценарій (паралельне виконання):\n  Thread-1: authorRepo.findById()  → 50ms\n  Thread-2: genreRepo.findById()   → 30ms  (виконується одночасно!)\n  Thread-3: ratingRepo.getAverage() → 80ms  (виконується одночасно!)\n  \n  Загальний час: max(50, 30, 80) = 80ms\n  Прискорення: 160ms / 80ms = 2× швидше\n",[2975,3442,3440],{"__ignoreMap":2973},[2964,3444,3445,3448,3449,3452,3453,3456],{},[3246,3446,3447],{},"Фундаментальна проблема:"," JDBC API є ",[3246,3450,3451],{},"повністю синхронним",". Метод ",[2975,3454,3455],{},"executeQuery()"," блокує потік до отримання результату. Немає способу «запустити запит і продовжити роботу, поки він виконується».",[3458,3459],"hr",{},[2959,3461,3463],{"id":3462},"концепція-асинхронність-у-java","Концепція: Асинхронність у Java",[3465,3466,3468],"h3",{"id":3467},"синхронний-vs-асинхронний-виклик","Синхронний vs Асинхронний виклик",[2964,3470,3471,3474],{},[3246,3472,3473],{},"Синхронний виклик"," (blocking call):",[2968,3476,3478],{"className":2970,"code":3477,"language":2972,"meta":2973,"style":2973},"// Потік зупиняється тут і чекає на результат\nAuthor author = authorRepo.findById(id).orElseThrow();\n// Продовження виконання лише після отримання результату\nSystem.out.println(author.getFirstName());\n",[2975,3479,3480,3485,3506,3511],{"__ignoreMap":2973},[2978,3481,3482],{"class":2980,"line":2981},[2978,3483,3484],{"class":3073},"// Потік зупиняється тут і чекає на результат\n",[2978,3486,3487,3489,3491,3493,3495,3497,3499,3502,3504],{"class":2980,"line":3007},[2978,3488,3120],{"class":2984},[2978,3490,3123],{"class":2988},[2978,3492,3016],{"class":2992},[2978,3494,3128],{"class":2988},[2978,3496,3091],{"class":2992},[2978,3498,3094],{"class":3000},[2978,3500,3501],{"class":2992},"(id).",[2978,3503,3100],{"class":3000},[2978,3505,3103],{"class":2992},[2978,3507,3508],{"class":2980,"line":3026},[2978,3509,3510],{"class":3073},"// Продовження виконання лише після отримання результату\n",[2978,3512,3513,3516,3518,3521,3523,3526,3528,3531,3533,3536],{"class":2980,"line":3045},[2978,3514,3515],{"class":2988},"System",[2978,3517,3091],{"class":2992},[2978,3519,3520],{"class":2988},"out",[2978,3522,3091],{"class":2992},[2978,3524,3525],{"class":3000},"println",[2978,3527,3135],{"class":2992},[2978,3529,3530],{"class":2988},"author",[2978,3532,3091],{"class":2992},[2978,3534,3535],{"class":3000},"getFirstName",[2978,3537,3538],{"class":2992},"());\n",[2964,3540,3541,3544],{},[3246,3542,3543],{},"Асинхронний виклик"," (non-blocking call):",[2968,3546,3548],{"className":2970,"code":3547,"language":2972,"meta":2973,"style":2973},"// Потік НЕ зупиняється — метод повертає \"обіцянку\" результату\nCompletableFuture\u003CAuthor> futureAuthor = authorRepo.findByIdAsync(id);\n\n// Потік може продовжувати іншу роботу\nSystem.out.println(\"Запит відправлено, продовжуємо роботу...\");\n\n// Коли результат потрібен — чекаємо на завершення\nAuthor author = futureAuthor.join(); // блокується лише тут\nSystem.out.println(author.getFirstName());\n",[2975,3549,3550,3555,3583,3587,3592,3613,3617,3622,3643],{"__ignoreMap":2973},[2978,3551,3552],{"class":2980,"line":2981},[2978,3553,3554],{"class":3073},"// Потік НЕ зупиняється — метод повертає \"обіцянку\" результату\n",[2978,3556,3557,3560,3563,3565,3568,3571,3573,3575,3577,3580],{"class":2980,"line":3007},[2978,3558,3559],{"class":2984},"CompletableFuture",[2978,3561,3562],{"class":2992},"\u003C",[2978,3564,3120],{"class":2984},[2978,3566,3567],{"class":2992},"> ",[2978,3569,3570],{"class":2988},"futureAuthor",[2978,3572,3016],{"class":2992},[2978,3574,3128],{"class":2988},[2978,3576,3091],{"class":2992},[2978,3578,3579],{"class":3000},"findByIdAsync",[2978,3581,3582],{"class":2992},"(id);\n",[2978,3584,3585],{"class":2980,"line":3026},[2978,3586,3067],{"emptyLinePlaceholder":3066},[2978,3588,3589],{"class":2980,"line":3045},[2978,3590,3591],{"class":3073},"// Потік може продовжувати іншу роботу\n",[2978,3593,3594,3596,3598,3600,3602,3604,3606,3610],{"class":2980,"line":3063},[2978,3595,3515],{"class":2988},[2978,3597,3091],{"class":2992},[2978,3599,3520],{"class":2988},[2978,3601,3091],{"class":2992},[2978,3603,3525],{"class":3000},[2978,3605,3135],{"class":2992},[2978,3607,3609],{"class":3608},"sbdoH","\"Запит відправлено, продовжуємо роботу...\"",[2978,3611,3612],{"class":2992},");\n",[2978,3614,3615],{"class":2980,"line":3070},[2978,3616,3067],{"emptyLinePlaceholder":3066},[2978,3618,3619],{"class":2980,"line":3077},[2978,3620,3621],{"class":3073},"// Коли результат потрібен — чекаємо на завершення\n",[2978,3623,3624,3626,3628,3630,3632,3634,3637,3640],{"class":2980,"line":3106},[2978,3625,3120],{"class":2984},[2978,3627,3123],{"class":2988},[2978,3629,3016],{"class":2992},[2978,3631,3570],{"class":2988},[2978,3633,3091],{"class":2992},[2978,3635,3636],{"class":3000},"join",[2978,3638,3639],{"class":2992},"(); ",[2978,3641,3642],{"class":3073},"// блокується лише тут\n",[2978,3644,3645,3647,3649,3651,3653,3655,3657,3659,3661,3663],{"class":2980,"line":3111},[2978,3646,3515],{"class":2988},[2978,3648,3091],{"class":2992},[2978,3650,3520],{"class":2988},[2978,3652,3091],{"class":2992},[2978,3654,3525],{"class":3000},[2978,3656,3135],{"class":2992},[2978,3658,3530],{"class":2988},[2978,3660,3091],{"class":2992},[2978,3662,3535],{"class":3000},[2978,3664,3538],{"class":2992},[3465,3666,3668],{"id":3667},"completablefuture-обіцянка-майбутнього-результату","CompletableFuture: Обіцянка майбутнього результату",[2964,3670,3671,3674,3675,3436],{},[2975,3672,3673],{},"CompletableFuture\u003CT>"," (з'явився у Java 8) є центральним інструментом асинхронного програмування у Java. Це ",[3246,3676,3677],{},"контейнер для значення, що буде обчислене у майбутньому",[2968,3679,3681],{"className":2970,"code":3680,"language":2972,"meta":2973,"style":2973},"CompletableFuture\u003CString> future = CompletableFuture.supplyAsync(() -> {\n    // Цей код виконується в окремому потоці\n    Thread.sleep(1000);\n    return \"Результат\";\n});\n\n// Основний потік продовжує роботу\nSystem.out.println(\"Обчислення запущено...\");\n\n// Коли потрібен результат:\nString result = future.join(); // чекає завершення\nSystem.out.println(result); // \"Результат\"\n",[2975,3682,3683,3716,3721,3739,3750,3755,3759,3764,3783,3787,3792,3812],{"__ignoreMap":2973},[2978,3684,3685,3687,3689,3692,3694,3697,3699,3701,3703,3706,3709,3713],{"class":2980,"line":2981},[2978,3686,3559],{"class":2984},[2978,3688,3562],{"class":2992},[2978,3690,3691],{"class":2984},"String",[2978,3693,3567],{"class":2992},[2978,3695,3696],{"class":2988},"future",[2978,3698,3016],{"class":2992},[2978,3700,3559],{"class":2988},[2978,3702,3091],{"class":2992},[2978,3704,3705],{"class":3000},"supplyAsync",[2978,3707,3708],{"class":2992},"(() ",[2978,3710,3712],{"class":3711},"su1O8","->",[2978,3714,3715],{"class":2992}," {\n",[2978,3717,3718],{"class":2980,"line":3007},[2978,3719,3720],{"class":3073},"    // Цей код виконується в окремому потоці\n",[2978,3722,3723,3726,3728,3731,3733,3737],{"class":2980,"line":3026},[2978,3724,3725],{"class":2988},"    Thread",[2978,3727,3091],{"class":2992},[2978,3729,3730],{"class":3000},"sleep",[2978,3732,3135],{"class":2992},[2978,3734,3736],{"class":3735},"sJj4R","1000",[2978,3738,3612],{"class":2992},[2978,3740,3741,3744,3747],{"class":2980,"line":3045},[2978,3742,3743],{"class":2996},"    return",[2978,3745,3746],{"class":3608}," \"Результат\"",[2978,3748,3749],{"class":2992},";\n",[2978,3751,3752],{"class":2980,"line":3063},[2978,3753,3754],{"class":2992},"});\n",[2978,3756,3757],{"class":2980,"line":3070},[2978,3758,3067],{"emptyLinePlaceholder":3066},[2978,3760,3761],{"class":2980,"line":3077},[2978,3762,3763],{"class":3073},"// Основний потік продовжує роботу\n",[2978,3765,3766,3768,3770,3772,3774,3776,3778,3781],{"class":2980,"line":3106},[2978,3767,3515],{"class":2988},[2978,3769,3091],{"class":2992},[2978,3771,3520],{"class":2988},[2978,3773,3091],{"class":2992},[2978,3775,3525],{"class":3000},[2978,3777,3135],{"class":2992},[2978,3779,3780],{"class":3608},"\"Обчислення запущено...\"",[2978,3782,3612],{"class":2992},[2978,3784,3785],{"class":2980,"line":3111},[2978,3786,3067],{"emptyLinePlaceholder":3066},[2978,3788,3789],{"class":2980,"line":3117},[2978,3790,3791],{"class":3073},"// Коли потрібен результат:\n",[2978,3793,3794,3796,3799,3801,3803,3805,3807,3809],{"class":2980,"line":3157},[2978,3795,3691],{"class":2984},[2978,3797,3798],{"class":2988}," result",[2978,3800,3016],{"class":2992},[2978,3802,3696],{"class":2988},[2978,3804,3091],{"class":2992},[2978,3806,3636],{"class":3000},[2978,3808,3639],{"class":2992},[2978,3810,3811],{"class":3073},"// чекає завершення\n",[2978,3813,3814,3816,3818,3820,3822,3824,3827],{"class":2980,"line":3194},[2978,3815,3515],{"class":2988},[2978,3817,3091],{"class":2992},[2978,3819,3520],{"class":2988},[2978,3821,3091],{"class":2992},[2978,3823,3525],{"class":3000},[2978,3825,3826],{"class":2992},"(result); ",[2978,3828,3829],{"class":3073},"// \"Результат\"\n",[2964,3831,3832],{},[3246,3833,3834,3835,3436],{},"Ключові методи ",[2975,3836,3559],{},[3838,3839,3840,3853],"table",{},[3841,3842,3843],"thead",{},[3844,3845,3846,3850],"tr",{},[3847,3848,3849],"th",{},"Метод",[3847,3851,3852],{},"Призначення",[3854,3855,3856,3869,3879,3889,3901,3913,3923],"tbody",{},[3844,3857,3858,3864],{},[3859,3860,3861],"td",{},[2975,3862,3863],{},"supplyAsync(Supplier\u003CT>)",[3859,3865,3866,3867],{},"Запускає обчислення у пулі потоків, повертає ",[2975,3868,3673],{},[3844,3870,3871,3876],{},[3859,3872,3873],{},[2975,3874,3875],{},"thenApply(Function\u003CT,U>)",[3859,3877,3878],{},"Трансформує результат після завершення (map)",[3844,3880,3881,3886],{},[3859,3882,3883],{},[2975,3884,3885],{},"thenCompose(Function\u003CT,CF\u003CU>>)",[3859,3887,3888],{},"Ланцюжок асинхронних операцій (flatMap)",[3844,3890,3891,3896],{},[3859,3892,3893],{},[2975,3894,3895],{},"thenCombine(CF\u003CU>, BiFunction)",[3859,3897,3898,3899],{},"Комбінує два незалежних ",[2975,3900,3559],{},[3844,3902,3903,3908],{},[3859,3904,3905],{},[2975,3906,3907],{},"allOf(CF\u003C?>...)",[3859,3909,3910,3911],{},"Чекає завершення всіх переданих ",[2975,3912,3559],{},[3844,3914,3915,3920],{},[3859,3916,3917],{},[2975,3918,3919],{},"join()",[3859,3921,3922],{},"Блокує потік до завершення, повертає результат",[3844,3924,3925,3930],{},[3859,3926,3927],{},[2975,3928,3929],{},"exceptionally(Function)",[3859,3931,3932,3933,3936],{},"Обробка виключень (аналог ",[2975,3934,3935],{},"catch",")",[3938,3939,3940,3942,3943,3946,3947,3950,3951,3954,3955,3091],"tip",{},[2975,3941,3559],{}," є Java-аналогом ",[2975,3944,3945],{},"Promise"," у JavaScript, ",[2975,3948,3949],{},"Task\u003CT>"," у C#, ",[2975,3952,3953],{},"Future"," у Scala. Всі ці абстракції представляють ",[3246,3956,3957],{},"асинхронне обчислення, що може завершитися успіхом або помилкою",[3458,3959],{},[2959,3961,3963],{"id":3962},"обмеження-jdbc-чому-він-синхронний","Обмеження JDBC: Чому він синхронний",[2964,3965,3966,3967,3970],{},"JDBC API було розроблено у 1997 році, коли асинхронність не була пріоритетом. Всі методи ",[2975,3968,3969],{},"java.sql.*"," є блокуючими:",[2968,3972,3974],{"className":2970,"code":3973,"language":2972,"meta":2973,"style":2973},"// Всі ці методи блокують потік до завершення\nConnection conn = dataSource.getConnection();        // блокується\nPreparedStatement stmt = conn.prepareStatement(sql); // блокується\nResultSet rs = stmt.executeQuery();                  // блокується ← найдовше\nwhile (rs.next()) { ... }                            // блокується на кожній ітерації\n",[2975,3975,3976,3981,4005,4028,4052],{"__ignoreMap":2973},[2978,3977,3978],{"class":2980,"line":2981},[2978,3979,3980],{"class":3073},"// Всі ці методи блокують потік до завершення\n",[2978,3982,3983,3986,3989,3991,3994,3996,3999,4002],{"class":2980,"line":3007},[2978,3984,3985],{"class":2984},"Connection",[2978,3987,3988],{"class":2988}," conn",[2978,3990,3016],{"class":2992},[2978,3992,3993],{"class":2988},"dataSource",[2978,3995,3091],{"class":2992},[2978,3997,3998],{"class":3000},"getConnection",[2978,4000,4001],{"class":2992},"();        ",[2978,4003,4004],{"class":3073},"// блокується\n",[2978,4006,4007,4010,4013,4015,4018,4020,4023,4026],{"class":2980,"line":3026},[2978,4008,4009],{"class":2984},"PreparedStatement",[2978,4011,4012],{"class":2988}," stmt",[2978,4014,3016],{"class":2992},[2978,4016,4017],{"class":2988},"conn",[2978,4019,3091],{"class":2992},[2978,4021,4022],{"class":3000},"prepareStatement",[2978,4024,4025],{"class":2992},"(sql); ",[2978,4027,4004],{"class":3073},[2978,4029,4030,4033,4036,4038,4041,4043,4046,4049],{"class":2980,"line":3045},[2978,4031,4032],{"class":2984},"ResultSet",[2978,4034,4035],{"class":2988}," rs",[2978,4037,3016],{"class":2992},[2978,4039,4040],{"class":2988},"stmt",[2978,4042,3091],{"class":2992},[2978,4044,4045],{"class":3000},"executeQuery",[2978,4047,4048],{"class":2992},"();                  ",[2978,4050,4051],{"class":3073},"// блокується ← найдовше\n",[2978,4053,4054,4057,4060,4063,4065,4068,4071],{"class":2980,"line":3063},[2978,4055,4056],{"class":2996},"while",[2978,4058,4059],{"class":2992}," (",[2978,4061,4062],{"class":2988},"rs",[2978,4064,3091],{"class":2992},[2978,4066,4067],{"class":3000},"next",[2978,4069,4070],{"class":2992},"()) { ... }                            ",[2978,4072,4073],{"class":3073},"// блокується на кожній ітерації\n",[2964,4075,4076],{},[3246,4077,4078],{},"Чому JDBC не має асинхронного API?",[4080,4081,4082,4089,4099],"ol",{},[4083,4084,4085,4088],"li",{},[3246,4086,4087],{},"Історичні причини:"," У 1997 році багатопоточність була складною і рідкісною. Синхронний API був простішим для розуміння.",[4083,4090,4091,4094,4095,4098],{},[3246,4092,4093],{},"Протокол БД:"," Більшість СУБД (MySQL, PostgreSQL, Oracle) використовують ",[3246,4096,4097],{},"синхронні протоколи"," на рівні TCP. Клієнт відправляє запит і чекає на відповідь — протокол не підтримує «відправити кілька запитів і отримати відповіді у довільному порядку».",[4083,4100,4101,4104],{},[3246,4102,4103],{},"Складність реалізації:"," Асинхронний драйвер вимагає складного управління станом з'єднання, буферизації, обробки помилок у багатопоточному середовищі.",[4106,4107,4108,4111],"note",{},[3246,4109,4110],{},"ADBA (Asynchronous Database Access)"," — спроба створити асинхронний API для Java (JEP 318, 2018). Проєкт був заморожений у 2019 році через складність стандартизації та відсутність підтримки з боку виробників СУБД. Станом на 2026 рік офіційного асинхронного JDBC API не існує.",[2964,4113,4114,4117,4118,4121,4122,4125,4126,3091],{},[3246,4115,4116],{},"Рішення:"," Ми не можемо зробити сам JDBC асинхронним, але можемо ",[3246,4119,4120],{},"виконувати синхронні JDBC-операції в окремих потоках"," через ",[2975,4123,4124],{},"ExecutorService"," і обгортати результати у ",[2975,4127,3559],{},[3458,4129],{},[2959,4131,4133],{"id":4132},"реалізація-asyncrepository","Реалізація: AsyncRepository",[2964,4135,4136,4137,4140,4141,4144,4145,4147,4148,3091],{},"Наша стратегія: створити ",[3246,4138,4139],{},"асинхронну обгортку"," над синхронним ",[2975,4142,4143],{},"Repository\u003CT, ID>",". Кожен метод репозиторію виконується у пулі потоків і повертає ",[2975,4146,3673],{}," замість ",[2975,4149,4150],{},"T",[3465,4152,4154],{"id":4153},"інтерфейс-asyncrepository","Інтерфейс AsyncRepository",[2964,4156,4157],{},"Спочатку визначимо контракт асинхронного репозиторію:",[2968,4159,4162],{"className":2970,"code":4160,"language":2972,"meta":4161,"style":2973},"package com.example.audiobook.repository.async;\n\nimport java.util.List;\nimport java.util.concurrent.CompletableFuture;\n\n/**\n * Асинхронний контракт репозиторію.\n * \u003Cp>\n * Всі методи повертають {@link CompletableFuture} — обіцянку результату,\n * що буде обчислений у майбутньому в окремому потоці.\n * \u003Cp>\n * Клієнтський код може:\n * \u003Cul>\n *   \u003Cli>Запустити кілька операцій паралельно без блокування\u003C/li>\n *   \u003Cli>Комбінувати результати через {@code thenCombine}, {@code allOf}\u003C/li>\n *   \u003Cli>Обробляти помилки через {@code exceptionally}, {@code handle}\u003C/li>\n * \u003C/ul>\n *\n * @param \u003CT>  тип доменної сутності\n * @param \u003CID> тип первинного ключа\n */\npublic interface AsyncRepository\u003CT, ID> {\n\n    /**\n     * Асинхронно знаходить сутність за первинним ключем.\n     * \u003Cp>\n     * Запит виконується у пулі потоків. Метод повертається негайно,\n     * не чекаючи на завершення SQL-запиту.\n     *\n     * @param id первинний ключ\n     * @return CompletableFuture з Optional[T] — завершиться після виконання SELECT\n     */\n    CompletableFuture\u003Cjava.util.Optional\u003CT>> findByIdAsync(ID id);\n\n    /**\n     * Асинхронно повертає всі сутності.\n     * \u003Cp>\n     * Для великих таблиць рекомендується використовувати пагінацію\n     * або streaming (реалізується у підкласах).\n     *\n     * @return CompletableFuture зі списком сутностей\n     */\n    CompletableFuture\u003CList\u003CT>> findAllAsync();\n\n    /**\n     * Асинхронно зберігає нову сутність.\n     * \u003Cp>\n     * INSERT виконується у пулі потоків. CompletableFuture завершується\n     * після успішного commit або з виключенням при помилці.\n     *\n     * @param entity сутність для збереження\n     * @return CompletableFuture\u003CVoid> — завершиться після INSERT\n     */\n    CompletableFuture\u003CVoid> saveAsync(T entity);\n\n    /**\n     * Асинхронно оновлює існуючу сутність.\n     *\n     * @param entity сутність з оновленими даними\n     * @return CompletableFuture\u003CVoid> — завершиться після UPDATE\n     */\n    CompletableFuture\u003CVoid> updateAsync(T entity);\n\n    /**\n     * Асинхронно видаляє сутність за первинним ключем.\n     *\n     * @param id первинний ключ\n     * @return CompletableFuture\u003CBoolean> — true якщо сутність була видалена\n     */\n    CompletableFuture\u003CBoolean> deleteByIdAsync(ID id);\n\n    /**\n     * Асинхронно повертає кількість сутностей.\n     *\n     * @return CompletableFuture\u003CLong> з кількістю записів\n     */\n    CompletableFuture\u003CLong> countAsync();\n\n    /**\n     * Асинхронно перевіряє існування сутності.\n     *\n     * @param id первинний ключ\n     * @return CompletableFuture\u003CBoolean> — true якщо сутність існує\n     */\n    CompletableFuture\u003CBoolean> existsByIdAsync(ID id);\n}\n","showLineNumbers",[2975,4163,4164,4172,4176,4184,4191,4195,4200,4205,4210,4215,4220,4224,4229,4234,4239,4244,4249,4254,4259,4273,4285,4290,4314,4318,4323,4328,4333,4338,4343,4348,4361,4372,4378,4415,4420,4425,4431,4436,4442,4448,4453,4463,4468,4489,4494,4499,4505,4510,4516,4522,4527,4540,4550,4555,4578,4583,4588,4594,4599,4611,4621,4626,4648,4653,4658,4664,4669,4680,4690,4695,4718,4723,4728,4734,4739,4749,4754,4771,4776,4781,4787,4792,4803,4813,4818,4840],{"__ignoreMap":2973},[2978,4165,4166,4169],{"class":2980,"line":2981},[2978,4167,4168],{"class":3711},"package",[2978,4170,4171],{"class":2992}," com.example.audiobook.repository.async;\n",[2978,4173,4174],{"class":2980,"line":3007},[2978,4175,3067],{"emptyLinePlaceholder":3066},[2978,4177,4178,4181],{"class":2980,"line":3026},[2978,4179,4180],{"class":3711},"import",[2978,4182,4183],{"class":2992}," java.util.List;\n",[2978,4185,4186,4188],{"class":2980,"line":3045},[2978,4187,4180],{"class":3711},[2978,4189,4190],{"class":2992}," java.util.concurrent.CompletableFuture;\n",[2978,4192,4193],{"class":2980,"line":3063},[2978,4194,3067],{"emptyLinePlaceholder":3066},[2978,4196,4197],{"class":2980,"line":3070},[2978,4198,4199],{"class":3073},"/**\n",[2978,4201,4202],{"class":2980,"line":3077},[2978,4203,4204],{"class":3073}," * Асинхронний контракт репозиторію.\n",[2978,4206,4207],{"class":2980,"line":3106},[2978,4208,4209],{"class":3073}," * \u003Cp>\n",[2978,4211,4212],{"class":2980,"line":3111},[2978,4213,4214],{"class":3073}," * Всі методи повертають {@link CompletableFuture} — обіцянку результату,\n",[2978,4216,4217],{"class":2980,"line":3117},[2978,4218,4219],{"class":3073}," * що буде обчислений у майбутньому в окремому потоці.\n",[2978,4221,4222],{"class":2980,"line":3157},[2978,4223,4209],{"class":3073},[2978,4225,4226],{"class":2980,"line":3194},[2978,4227,4228],{"class":3073}," * Клієнтський код може:\n",[2978,4230,4231],{"class":2980,"line":3219},[2978,4232,4233],{"class":3073}," * \u003Cul>\n",[2978,4235,4236],{"class":2980,"line":3224},[2978,4237,4238],{"class":3073}," *   \u003Cli>Запустити кілька операцій паралельно без блокування\u003C/li>\n",[2978,4240,4241],{"class":2980,"line":3336},[2978,4242,4243],{"class":3073}," *   \u003Cli>Комбінувати результати через {@code thenCombine}, {@code allOf}\u003C/li>\n",[2978,4245,4246],{"class":2980,"line":3341},[2978,4247,4248],{"class":3073}," *   \u003Cli>Обробляти помилки через {@code exceptionally}, {@code handle}\u003C/li>\n",[2978,4250,4251],{"class":2980,"line":3346},[2978,4252,4253],{"class":3073}," * \u003C/ul>\n",[2978,4255,4256],{"class":2980,"line":3352},[2978,4257,4258],{"class":3073}," *\n",[2978,4260,4261,4264,4267,4270],{"class":2980,"line":3358},[2978,4262,4263],{"class":3073}," * ",[2978,4265,4266],{"class":3711},"@param",[2978,4268,4269],{"class":2988}," \u003CT>",[2978,4271,4272],{"class":3073},"  тип доменної сутності\n",[2978,4274,4275,4277,4279,4282],{"class":2980,"line":3363},[2978,4276,4263],{"class":3073},[2978,4278,4266],{"class":3711},[2978,4280,4281],{"class":2988}," \u003CID>",[2978,4283,4284],{"class":3073}," тип первинного ключа\n",[2978,4286,4287],{"class":2980,"line":3368},[2978,4288,4289],{"class":3073}," */\n",[2978,4291,4292,4295,4298,4301,4303,4305,4308,4311],{"class":2980,"line":3373},[2978,4293,4294],{"class":3711},"public",[2978,4296,4297],{"class":3711}," interface",[2978,4299,4300],{"class":2984}," AsyncRepository",[2978,4302,3562],{"class":2992},[2978,4304,4150],{"class":2984},[2978,4306,4307],{"class":2992},", ",[2978,4309,4310],{"class":2984},"ID",[2978,4312,4313],{"class":2992},"> {\n",[2978,4315,4316],{"class":2980,"line":3379},[2978,4317,3067],{"emptyLinePlaceholder":3066},[2978,4319,4320],{"class":2980,"line":3384},[2978,4321,4322],{"class":3073},"    /**\n",[2978,4324,4325],{"class":2980,"line":3389},[2978,4326,4327],{"class":3073},"     * Асинхронно знаходить сутність за первинним ключем.\n",[2978,4329,4330],{"class":2980,"line":3395},[2978,4331,4332],{"class":3073},"     * \u003Cp>\n",[2978,4334,4335],{"class":2980,"line":3401},[2978,4336,4337],{"class":3073},"     * Запит виконується у пулі потоків. Метод повертається негайно,\n",[2978,4339,4340],{"class":2980,"line":3406},[2978,4341,4342],{"class":3073},"     * не чекаючи на завершення SQL-запиту.\n",[2978,4344,4345],{"class":2980,"line":3411},[2978,4346,4347],{"class":3073},"     *\n",[2978,4349,4350,4353,4355,4358],{"class":2980,"line":3416},[2978,4351,4352],{"class":3073},"     * ",[2978,4354,4266],{"class":3711},[2978,4356,4357],{"class":2988}," id",[2978,4359,4360],{"class":3073}," первинний ключ\n",[2978,4362,4364,4366,4369],{"class":2980,"line":4363},31,[2978,4365,4352],{"class":3073},[2978,4367,4368],{"class":3711},"@return",[2978,4370,4371],{"class":3073}," CompletableFuture з Optional[T] — завершиться після виконання SELECT\n",[2978,4373,4375],{"class":2980,"line":4374},32,[2978,4376,4377],{"class":3073},"     */\n",[2978,4379,4381,4384,4386,4388,4390,4393,4395,4398,4400,4402,4405,4407,4409,4411,4413],{"class":2980,"line":4380},33,[2978,4382,4383],{"class":2984},"    CompletableFuture",[2978,4385,3562],{"class":2992},[2978,4387,2972],{"class":2984},[2978,4389,3091],{"class":2992},[2978,4391,4392],{"class":2984},"util",[2978,4394,3091],{"class":2992},[2978,4396,4397],{"class":2984},"Optional",[2978,4399,3562],{"class":2992},[2978,4401,4150],{"class":2984},[2978,4403,4404],{"class":2992},">> ",[2978,4406,3579],{"class":3000},[2978,4408,3135],{"class":2992},[2978,4410,4310],{"class":2984},[2978,4412,4357],{"class":2988},[2978,4414,3612],{"class":2992},[2978,4416,4418],{"class":2980,"line":4417},34,[2978,4419,3067],{"emptyLinePlaceholder":3066},[2978,4421,4423],{"class":2980,"line":4422},35,[2978,4424,4322],{"class":3073},[2978,4426,4428],{"class":2980,"line":4427},36,[2978,4429,4430],{"class":3073},"     * Асинхронно повертає всі сутності.\n",[2978,4432,4434],{"class":2980,"line":4433},37,[2978,4435,4332],{"class":3073},[2978,4437,4439],{"class":2980,"line":4438},38,[2978,4440,4441],{"class":3073},"     * Для великих таблиць рекомендується використовувати пагінацію\n",[2978,4443,4445],{"class":2980,"line":4444},39,[2978,4446,4447],{"class":3073},"     * або streaming (реалізується у підкласах).\n",[2978,4449,4451],{"class":2980,"line":4450},40,[2978,4452,4347],{"class":3073},[2978,4454,4456,4458,4460],{"class":2980,"line":4455},41,[2978,4457,4352],{"class":3073},[2978,4459,4368],{"class":3711},[2978,4461,4462],{"class":3073}," CompletableFuture зі списком сутностей\n",[2978,4464,4466],{"class":2980,"line":4465},42,[2978,4467,4377],{"class":3073},[2978,4469,4471,4473,4475,4478,4480,4482,4484,4487],{"class":2980,"line":4470},43,[2978,4472,4383],{"class":2984},[2978,4474,3562],{"class":2992},[2978,4476,4477],{"class":2984},"List",[2978,4479,3562],{"class":2992},[2978,4481,4150],{"class":2984},[2978,4483,4404],{"class":2992},[2978,4485,4486],{"class":3000},"findAllAsync",[2978,4488,3103],{"class":2992},[2978,4490,4492],{"class":2980,"line":4491},44,[2978,4493,3067],{"emptyLinePlaceholder":3066},[2978,4495,4497],{"class":2980,"line":4496},45,[2978,4498,4322],{"class":3073},[2978,4500,4502],{"class":2980,"line":4501},46,[2978,4503,4504],{"class":3073},"     * Асинхронно зберігає нову сутність.\n",[2978,4506,4508],{"class":2980,"line":4507},47,[2978,4509,4332],{"class":3073},[2978,4511,4513],{"class":2980,"line":4512},48,[2978,4514,4515],{"class":3073},"     * INSERT виконується у пулі потоків. CompletableFuture завершується\n",[2978,4517,4519],{"class":2980,"line":4518},49,[2978,4520,4521],{"class":3073},"     * після успішного commit або з виключенням при помилці.\n",[2978,4523,4525],{"class":2980,"line":4524},50,[2978,4526,4347],{"class":3073},[2978,4528,4530,4532,4534,4537],{"class":2980,"line":4529},51,[2978,4531,4352],{"class":3073},[2978,4533,4266],{"class":3711},[2978,4535,4536],{"class":2988}," entity",[2978,4538,4539],{"class":3073}," сутність для збереження\n",[2978,4541,4543,4545,4547],{"class":2980,"line":4542},52,[2978,4544,4352],{"class":3073},[2978,4546,4368],{"class":3711},[2978,4548,4549],{"class":3073}," CompletableFuture\u003CVoid> — завершиться після INSERT\n",[2978,4551,4553],{"class":2980,"line":4552},53,[2978,4554,4377],{"class":3073},[2978,4556,4558,4560,4562,4565,4567,4570,4572,4574,4576],{"class":2980,"line":4557},54,[2978,4559,4383],{"class":2984},[2978,4561,3562],{"class":2992},[2978,4563,4564],{"class":2984},"Void",[2978,4566,3567],{"class":2992},[2978,4568,4569],{"class":3000},"saveAsync",[2978,4571,3135],{"class":2992},[2978,4573,4150],{"class":2984},[2978,4575,4536],{"class":2988},[2978,4577,3612],{"class":2992},[2978,4579,4581],{"class":2980,"line":4580},55,[2978,4582,3067],{"emptyLinePlaceholder":3066},[2978,4584,4586],{"class":2980,"line":4585},56,[2978,4587,4322],{"class":3073},[2978,4589,4591],{"class":2980,"line":4590},57,[2978,4592,4593],{"class":3073},"     * Асинхронно оновлює існуючу сутність.\n",[2978,4595,4597],{"class":2980,"line":4596},58,[2978,4598,4347],{"class":3073},[2978,4600,4602,4604,4606,4608],{"class":2980,"line":4601},59,[2978,4603,4352],{"class":3073},[2978,4605,4266],{"class":3711},[2978,4607,4536],{"class":2988},[2978,4609,4610],{"class":3073}," сутність з оновленими даними\n",[2978,4612,4614,4616,4618],{"class":2980,"line":4613},60,[2978,4615,4352],{"class":3073},[2978,4617,4368],{"class":3711},[2978,4619,4620],{"class":3073}," CompletableFuture\u003CVoid> — завершиться після UPDATE\n",[2978,4622,4624],{"class":2980,"line":4623},61,[2978,4625,4377],{"class":3073},[2978,4627,4629,4631,4633,4635,4637,4640,4642,4644,4646],{"class":2980,"line":4628},62,[2978,4630,4383],{"class":2984},[2978,4632,3562],{"class":2992},[2978,4634,4564],{"class":2984},[2978,4636,3567],{"class":2992},[2978,4638,4639],{"class":3000},"updateAsync",[2978,4641,3135],{"class":2992},[2978,4643,4150],{"class":2984},[2978,4645,4536],{"class":2988},[2978,4647,3612],{"class":2992},[2978,4649,4651],{"class":2980,"line":4650},63,[2978,4652,3067],{"emptyLinePlaceholder":3066},[2978,4654,4656],{"class":2980,"line":4655},64,[2978,4657,4322],{"class":3073},[2978,4659,4661],{"class":2980,"line":4660},65,[2978,4662,4663],{"class":3073},"     * Асинхронно видаляє сутність за первинним ключем.\n",[2978,4665,4667],{"class":2980,"line":4666},66,[2978,4668,4347],{"class":3073},[2978,4670,4672,4674,4676,4678],{"class":2980,"line":4671},67,[2978,4673,4352],{"class":3073},[2978,4675,4266],{"class":3711},[2978,4677,4357],{"class":2988},[2978,4679,4360],{"class":3073},[2978,4681,4683,4685,4687],{"class":2980,"line":4682},68,[2978,4684,4352],{"class":3073},[2978,4686,4368],{"class":3711},[2978,4688,4689],{"class":3073}," CompletableFuture\u003CBoolean> — true якщо сутність була видалена\n",[2978,4691,4693],{"class":2980,"line":4692},69,[2978,4694,4377],{"class":3073},[2978,4696,4698,4700,4702,4705,4707,4710,4712,4714,4716],{"class":2980,"line":4697},70,[2978,4699,4383],{"class":2984},[2978,4701,3562],{"class":2992},[2978,4703,4704],{"class":2984},"Boolean",[2978,4706,3567],{"class":2992},[2978,4708,4709],{"class":3000},"deleteByIdAsync",[2978,4711,3135],{"class":2992},[2978,4713,4310],{"class":2984},[2978,4715,4357],{"class":2988},[2978,4717,3612],{"class":2992},[2978,4719,4721],{"class":2980,"line":4720},71,[2978,4722,3067],{"emptyLinePlaceholder":3066},[2978,4724,4726],{"class":2980,"line":4725},72,[2978,4727,4322],{"class":3073},[2978,4729,4731],{"class":2980,"line":4730},73,[2978,4732,4733],{"class":3073},"     * Асинхронно повертає кількість сутностей.\n",[2978,4735,4737],{"class":2980,"line":4736},74,[2978,4738,4347],{"class":3073},[2978,4740,4742,4744,4746],{"class":2980,"line":4741},75,[2978,4743,4352],{"class":3073},[2978,4745,4368],{"class":3711},[2978,4747,4748],{"class":3073}," CompletableFuture\u003CLong> з кількістю записів\n",[2978,4750,4752],{"class":2980,"line":4751},76,[2978,4753,4377],{"class":3073},[2978,4755,4757,4759,4761,4764,4766,4769],{"class":2980,"line":4756},77,[2978,4758,4383],{"class":2984},[2978,4760,3562],{"class":2992},[2978,4762,4763],{"class":2984},"Long",[2978,4765,3567],{"class":2992},[2978,4767,4768],{"class":3000},"countAsync",[2978,4770,3103],{"class":2992},[2978,4772,4774],{"class":2980,"line":4773},78,[2978,4775,3067],{"emptyLinePlaceholder":3066},[2978,4777,4779],{"class":2980,"line":4778},79,[2978,4780,4322],{"class":3073},[2978,4782,4784],{"class":2980,"line":4783},80,[2978,4785,4786],{"class":3073},"     * Асинхронно перевіряє існування сутності.\n",[2978,4788,4790],{"class":2980,"line":4789},81,[2978,4791,4347],{"class":3073},[2978,4793,4795,4797,4799,4801],{"class":2980,"line":4794},82,[2978,4796,4352],{"class":3073},[2978,4798,4266],{"class":3711},[2978,4800,4357],{"class":2988},[2978,4802,4360],{"class":3073},[2978,4804,4806,4808,4810],{"class":2980,"line":4805},83,[2978,4807,4352],{"class":3073},[2978,4809,4368],{"class":3711},[2978,4811,4812],{"class":3073}," CompletableFuture\u003CBoolean> — true якщо сутність існує\n",[2978,4814,4816],{"class":2980,"line":4815},84,[2978,4817,4377],{"class":3073},[2978,4819,4821,4823,4825,4827,4829,4832,4834,4836,4838],{"class":2980,"line":4820},85,[2978,4822,4383],{"class":2984},[2978,4824,3562],{"class":2992},[2978,4826,4704],{"class":2984},[2978,4828,3567],{"class":2992},[2978,4830,4831],{"class":3000},"existsByIdAsync",[2978,4833,3135],{"class":2992},[2978,4835,4310],{"class":2984},[2978,4837,4357],{"class":2988},[2978,4839,3612],{"class":2992},[2978,4841,4843],{"class":2980,"line":4842},86,[2978,4844,4845],{"class":2992},"}\n",[2964,4847,4848],{},[3246,4849,4850,4851,3436],{},"Ключові відмінності від синхронного ",[2975,4852,4143],{},[4854,4855,4856,4863,4876],"ul",{},[4083,4857,4858,4859,4147,4861],{},"Кожен метод повертає ",[2975,4860,3673],{},[2975,4862,4150],{},[4083,4864,4865,4866,4869,4870,4307,4873,3936],{},"Суфікс ",[2975,4867,4868],{},"Async"," у назвах методів (конвенція Java: ",[2975,4871,4872],{},"readAsync",[2975,4874,4875],{},"writeAsync",[4083,4877,4878,4879,4882,4883],{},"Методи повертаються ",[3246,4880,4881],{},"негайно"," — результат буде доступний пізніше через ",[2975,4884,3559],{},[3458,4886],{},[2959,4888,4890],{"id":4889},"abstractasyncrepository-обгортка-над-синхронним-repository","AbstractAsyncRepository: Обгортка над синхронним Repository",[2964,4892,4893,4894,4897,4898,4900],{},"Замість того, щоб переписувати всю JDBC-логіку, ми створимо ",[3246,4895,4896],{},"адаптер",", що делегує виклики до існуючого синхронного ",[2975,4899,4143],{}," і виконує їх у пулі потоків:",[2968,4902,4904],{"className":2970,"code":4903,"language":2972,"meta":4161,"style":2973},"package com.example.audiobook.repository.async;\n\nimport com.example.audiobook.repository.Repository;\n\nimport java.util.List;\nimport java.util.Optional;\nimport java.util.concurrent.CompletableFuture;\nimport java.util.concurrent.ExecutorService;\nimport java.util.concurrent.Executors;\n\n/**\n * Абстрактна реалізація {@link AsyncRepository}, що обгортає\n * синхронний {@link Repository} і виконує всі операції асинхронно\n * через {@link ExecutorService}.\n * \u003Cp>\n * \u003Cb>Архітектурне рішення:\u003C/b> Замість дублювання JDBC-логіки,\n * цей клас делегує виклики до існуючого синхронного репозиторію\n * і обгортає результати у {@link CompletableFuture}.\n * \u003Cp>\n * \u003Cb>Управління пулом потоків:\u003C/b>\n * \u003Cul>\n *   \u003Cli>За замовчуванням використовується {@code ForkJoinPool.commonPool()}\n *       (спільний пул для всіх {@code CompletableFuture.supplyAsync()})\u003C/li>\n *   \u003Cli>Можна передати власний {@link ExecutorService} через конструктор\n *       для контролю розміру пулу та політики черги\u003C/li>\n *   \u003Cli>Рекомендований розмір пулу: кількість ядер CPU × 2\n *       (оскільки операції I/O-bound, а не CPU-bound)\u003C/li>\n * \u003C/ul>\n *\n * @param \u003CT>  тип доменної сутності\n * @param \u003CID> тип первинного ключа\n */\npublic abstract class AbstractAsyncRepository\u003CT, ID> implements AsyncRepository\u003CT, ID> {\n\n    /**\n     * Синхронний репозиторій, до якого делегуються всі операції.\n     * Підкласи передають конкретну реалізацію (JdbcAuthorRepository тощо).\n     */\n    protected final Repository\u003CT, ID> syncRepository;\n\n    /**\n     * Пул потоків для виконання асинхронних операцій.\n     * Якщо null — використовується ForkJoinPool.commonPool().\n     */\n    protected final ExecutorService executor;\n\n    /**\n     * Створює асинхронний репозиторій з власним пулом потоків.\n     *\n     * @param syncRepository синхронний репозиторій для делегування\n     * @param executor       пул потоків (або null для commonPool)\n     */\n    protected AbstractAsyncRepository(Repository\u003CT, ID> syncRepository,\n                                      ExecutorService executor) {\n        this.syncRepository = syncRepository;\n        this.executor = executor;\n    }\n\n    /**\n     * Створює асинхронний репозиторій з ForkJoinPool.commonPool().\n     * Зручний конструктор для простих випадків.\n     *\n     * @param syncRepository синхронний репозиторій для делегування\n     */\n    protected AbstractAsyncRepository(Repository\u003CT, ID> syncRepository) {\n        this(syncRepository, null);\n    }\n\n    // =========================================================\n    // Реалізація AsyncRepository через делегування\n    // =========================================================\n\n    /**\n     * Асинхронно знаходить сутність за ID.\n     * \u003Cp>\n     * Виконує {@code syncRepository.findById(id)} у пулі потоків.\n     * Основний потік не блокується — метод повертається негайно.\n     */\n    @Override\n    public CompletableFuture\u003COptional\u003CT>> findByIdAsync(ID id) {\n        return runAsync(() -> syncRepository.findById(id));\n    }\n\n    /**\n     * Асинхронно повертає всі сутності.\n     * \u003Cp>\n     * \u003Cb>Увага:\u003C/b> Для великих таблиць (>10000 рядків) цей метод\n     * може спричинити OutOfMemoryError. Використовуйте пагінацію\n     * або streaming для великих датасетів.\n     */\n    @Override\n    public CompletableFuture\u003CList\u003CT>> findAllAsync() {\n        return runAsync(() -> syncRepository.findAll());\n    }\n\n    /**\n     * Асинхронно зберігає нову сутність.\n     * \u003Cp>\n     * INSERT виконується у пулі потоків. CompletableFuture завершується\n     * з {@code null} (Void) після успішного збереження або з виключенням.\n     */\n    @Override\n    public CompletableFuture\u003CVoid> saveAsync(T entity) {\n        return runAsync(() -> {\n            syncRepository.save(entity);\n            return null; // Void\n        });\n    }\n\n    /**\n     * Асинхронно оновлює існуючу сутність.\n     */\n    @Override\n    public CompletableFuture\u003CVoid> updateAsync(T entity) {\n        return runAsync(() -> {\n            syncRepository.update(entity);\n            return null;\n        });\n    }\n\n    /**\n     * Асинхронно видаляє сутність за ID.\n     */\n    @Override\n    public CompletableFuture\u003CBoolean> deleteByIdAsync(ID id) {\n        return runAsync(() -> syncRepository.deleteById(id));\n    }\n\n    /**\n     * Асинхронно повертає кількість сутностей.\n     */\n    @Override\n    public CompletableFuture\u003CLong> countAsync() {\n        return runAsync(() -> syncRepository.count());\n    }\n\n    /**\n     * Асинхронно перевіряє існування сутності.\n     */\n    @Override\n    public CompletableFuture\u003CBoolean> existsByIdAsync(ID id) {\n        return runAsync(() -> syncRepository.existsById(id));\n    }\n\n    // =========================================================\n    // Утилітний метод для запуску асинхронних операцій\n    // =========================================================\n\n    /**\n     * Виконує {@link java.util.function.Supplier} у пулі потоків\n     * і повертає {@link CompletableFuture} з результатом.\n     * \u003Cp>\n     * Якщо {@code executor} заданий — використовує його,\n     * інакше — {@code ForkJoinPool.commonPool()}.\n     *\n     * @param supplier лямбда, що виконує синхронну операцію\n     * @param \u003CR>      тип результату\n     * @return CompletableFuture з результатом виконання\n     */\n    protected \u003CR> CompletableFuture\u003CR> runAsync(java.util.function.Supplier\u003CR> supplier) {\n        if (executor != null) {\n            return CompletableFuture.supplyAsync(supplier, executor);\n        } else {\n            return CompletableFuture.supplyAsync(supplier);\n        }\n    }\n\n    /**\n     * Закриває пул потоків (якщо він був переданий через конструктор).\n     * \u003Cp>\n     * \u003Cb>Важливо:\u003C/b> Викликайте цей метод при завершенні роботи додатку,\n     * інакше потоки залишаться активними і JVM не завершиться.\n     * \u003Cp>\n     * Якщо використовується {@code ForkJoinPool.commonPool()} (executor == null),\n     * цей метод нічого не робить — commonPool керується JVM.\n     */\n    public void shutdown() {\n        if (executor != null) {\n            executor.shutdown();\n        }\n    }\n}\n",[2975,4905,4906,4912,4916,4923,4927,4933,4940,4946,4953,4960,4964,4968,4973,4978,4983,4987,4992,4997,5002,5006,5011,5015,5020,5025,5030,5035,5040,5045,5049,5053,5063,5073,5077,5115,5119,5123,5128,5133,5137,5163,5167,5171,5176,5181,5185,5199,5203,5207,5212,5216,5228,5239,5243,5269,5279,5291,5303,5308,5312,5316,5321,5326,5330,5340,5344,5368,5380,5384,5388,5393,5398,5402,5406,5410,5415,5419,5424,5429,5433,5441,5469,5490,5494,5498,5502,5506,5510,5516,5522,5528,5533,5540,5562,5582,5587,5592,5597,5602,5607,5612,5618,5623,5630,5653,5666,5680,5695,5701,5706,5711,5716,5721,5726,5733,5756,5769,5781,5790,5795,5800,5805,5810,5816,5821,5828,5851,5871,5876,5881,5886,5891,5896,5903,5920,5940,5945,5950,5955,5960,5965,5972,5995,6015,6020,6025,6030,6036,6041,6046,6051,6057,6063,6068,6074,6080,6085,6098,6111,6121,6126,6179,6192,6206,6217,6231,6237,6242,6247,6252,6258,6263,6269,6275,6280,6286,6292,6297,6310,6321,6334,6339,6344],{"__ignoreMap":2973},[2978,4907,4908,4910],{"class":2980,"line":2981},[2978,4909,4168],{"class":3711},[2978,4911,4171],{"class":2992},[2978,4913,4914],{"class":2980,"line":3007},[2978,4915,3067],{"emptyLinePlaceholder":3066},[2978,4917,4918,4920],{"class":2980,"line":3026},[2978,4919,4180],{"class":3711},[2978,4921,4922],{"class":2992}," com.example.audiobook.repository.Repository;\n",[2978,4924,4925],{"class":2980,"line":3045},[2978,4926,3067],{"emptyLinePlaceholder":3066},[2978,4928,4929,4931],{"class":2980,"line":3063},[2978,4930,4180],{"class":3711},[2978,4932,4183],{"class":2992},[2978,4934,4935,4937],{"class":2980,"line":3070},[2978,4936,4180],{"class":3711},[2978,4938,4939],{"class":2992}," java.util.Optional;\n",[2978,4941,4942,4944],{"class":2980,"line":3077},[2978,4943,4180],{"class":3711},[2978,4945,4190],{"class":2992},[2978,4947,4948,4950],{"class":2980,"line":3106},[2978,4949,4180],{"class":3711},[2978,4951,4952],{"class":2992}," java.util.concurrent.ExecutorService;\n",[2978,4954,4955,4957],{"class":2980,"line":3111},[2978,4956,4180],{"class":3711},[2978,4958,4959],{"class":2992}," java.util.concurrent.Executors;\n",[2978,4961,4962],{"class":2980,"line":3117},[2978,4963,3067],{"emptyLinePlaceholder":3066},[2978,4965,4966],{"class":2980,"line":3157},[2978,4967,4199],{"class":3073},[2978,4969,4970],{"class":2980,"line":3194},[2978,4971,4972],{"class":3073}," * Абстрактна реалізація {@link AsyncRepository}, що обгортає\n",[2978,4974,4975],{"class":2980,"line":3219},[2978,4976,4977],{"class":3073}," * синхронний {@link Repository} і виконує всі операції асинхронно\n",[2978,4979,4980],{"class":2980,"line":3224},[2978,4981,4982],{"class":3073}," * через {@link ExecutorService}.\n",[2978,4984,4985],{"class":2980,"line":3336},[2978,4986,4209],{"class":3073},[2978,4988,4989],{"class":2980,"line":3341},[2978,4990,4991],{"class":3073}," * \u003Cb>Архітектурне рішення:\u003C/b> Замість дублювання JDBC-логіки,\n",[2978,4993,4994],{"class":2980,"line":3346},[2978,4995,4996],{"class":3073}," * цей клас делегує виклики до існуючого синхронного репозиторію\n",[2978,4998,4999],{"class":2980,"line":3352},[2978,5000,5001],{"class":3073}," * і обгортає результати у {@link CompletableFuture}.\n",[2978,5003,5004],{"class":2980,"line":3358},[2978,5005,4209],{"class":3073},[2978,5007,5008],{"class":2980,"line":3363},[2978,5009,5010],{"class":3073}," * \u003Cb>Управління пулом потоків:\u003C/b>\n",[2978,5012,5013],{"class":2980,"line":3368},[2978,5014,4233],{"class":3073},[2978,5016,5017],{"class":2980,"line":3373},[2978,5018,5019],{"class":3073}," *   \u003Cli>За замовчуванням використовується {@code ForkJoinPool.commonPool()}\n",[2978,5021,5022],{"class":2980,"line":3379},[2978,5023,5024],{"class":3073}," *       (спільний пул для всіх {@code CompletableFuture.supplyAsync()})\u003C/li>\n",[2978,5026,5027],{"class":2980,"line":3384},[2978,5028,5029],{"class":3073}," *   \u003Cli>Можна передати власний {@link ExecutorService} через конструктор\n",[2978,5031,5032],{"class":2980,"line":3389},[2978,5033,5034],{"class":3073}," *       для контролю розміру пулу та політики черги\u003C/li>\n",[2978,5036,5037],{"class":2980,"line":3395},[2978,5038,5039],{"class":3073}," *   \u003Cli>Рекомендований розмір пулу: кількість ядер CPU × 2\n",[2978,5041,5042],{"class":2980,"line":3401},[2978,5043,5044],{"class":3073}," *       (оскільки операції I/O-bound, а не CPU-bound)\u003C/li>\n",[2978,5046,5047],{"class":2980,"line":3406},[2978,5048,4253],{"class":3073},[2978,5050,5051],{"class":2980,"line":3411},[2978,5052,4258],{"class":3073},[2978,5054,5055,5057,5059,5061],{"class":2980,"line":3416},[2978,5056,4263],{"class":3073},[2978,5058,4266],{"class":3711},[2978,5060,4269],{"class":2988},[2978,5062,4272],{"class":3073},[2978,5064,5065,5067,5069,5071],{"class":2980,"line":4363},[2978,5066,4263],{"class":3073},[2978,5068,4266],{"class":3711},[2978,5070,4281],{"class":2988},[2978,5072,4284],{"class":3073},[2978,5074,5075],{"class":2980,"line":4374},[2978,5076,4289],{"class":3073},[2978,5078,5079,5081,5084,5087,5090,5092,5094,5096,5098,5100,5103,5105,5107,5109,5111,5113],{"class":2980,"line":4380},[2978,5080,4294],{"class":3711},[2978,5082,5083],{"class":3711}," abstract",[2978,5085,5086],{"class":3711}," class",[2978,5088,5089],{"class":2984}," AbstractAsyncRepository",[2978,5091,3562],{"class":2992},[2978,5093,4150],{"class":2984},[2978,5095,4307],{"class":2992},[2978,5097,4310],{"class":2984},[2978,5099,3567],{"class":2992},[2978,5101,5102],{"class":3711},"implements",[2978,5104,4300],{"class":2984},[2978,5106,3562],{"class":2992},[2978,5108,4150],{"class":2984},[2978,5110,4307],{"class":2992},[2978,5112,4310],{"class":2984},[2978,5114,4313],{"class":2992},[2978,5116,5117],{"class":2980,"line":4417},[2978,5118,3067],{"emptyLinePlaceholder":3066},[2978,5120,5121],{"class":2980,"line":4422},[2978,5122,4322],{"class":3073},[2978,5124,5125],{"class":2980,"line":4427},[2978,5126,5127],{"class":3073},"     * Синхронний репозиторій, до якого делегуються всі операції.\n",[2978,5129,5130],{"class":2980,"line":4433},[2978,5131,5132],{"class":3073},"     * Підкласи передають конкретну реалізацію (JdbcAuthorRepository тощо).\n",[2978,5134,5135],{"class":2980,"line":4438},[2978,5136,4377],{"class":3073},[2978,5138,5139,5142,5145,5148,5150,5152,5154,5156,5158,5161],{"class":2980,"line":4444},[2978,5140,5141],{"class":3711},"    protected",[2978,5143,5144],{"class":3711}," final",[2978,5146,5147],{"class":2984}," Repository",[2978,5149,3562],{"class":2992},[2978,5151,4150],{"class":2984},[2978,5153,4307],{"class":2992},[2978,5155,4310],{"class":2984},[2978,5157,3567],{"class":2992},[2978,5159,5160],{"class":2988},"syncRepository",[2978,5162,3749],{"class":2992},[2978,5164,5165],{"class":2980,"line":4450},[2978,5166,3067],{"emptyLinePlaceholder":3066},[2978,5168,5169],{"class":2980,"line":4455},[2978,5170,4322],{"class":3073},[2978,5172,5173],{"class":2980,"line":4465},[2978,5174,5175],{"class":3073},"     * Пул потоків для виконання асинхронних операцій.\n",[2978,5177,5178],{"class":2980,"line":4470},[2978,5179,5180],{"class":3073},"     * Якщо null — використовується ForkJoinPool.commonPool().\n",[2978,5182,5183],{"class":2980,"line":4491},[2978,5184,4377],{"class":3073},[2978,5186,5187,5189,5191,5194,5197],{"class":2980,"line":4496},[2978,5188,5141],{"class":3711},[2978,5190,5144],{"class":3711},[2978,5192,5193],{"class":2984}," ExecutorService",[2978,5195,5196],{"class":2988}," executor",[2978,5198,3749],{"class":2992},[2978,5200,5201],{"class":2980,"line":4501},[2978,5202,3067],{"emptyLinePlaceholder":3066},[2978,5204,5205],{"class":2980,"line":4507},[2978,5206,4322],{"class":3073},[2978,5208,5209],{"class":2980,"line":4512},[2978,5210,5211],{"class":3073},"     * Створює асинхронний репозиторій з власним пулом потоків.\n",[2978,5213,5214],{"class":2980,"line":4518},[2978,5215,4347],{"class":3073},[2978,5217,5218,5220,5222,5225],{"class":2980,"line":4524},[2978,5219,4352],{"class":3073},[2978,5221,4266],{"class":3711},[2978,5223,5224],{"class":2988}," syncRepository",[2978,5226,5227],{"class":3073}," синхронний репозиторій для делегування\n",[2978,5229,5230,5232,5234,5236],{"class":2980,"line":4529},[2978,5231,4352],{"class":3073},[2978,5233,4266],{"class":3711},[2978,5235,5196],{"class":2988},[2978,5237,5238],{"class":3073},"       пул потоків (або null для commonPool)\n",[2978,5240,5241],{"class":2980,"line":4542},[2978,5242,4377],{"class":3073},[2978,5244,5245,5247,5249,5251,5254,5256,5258,5260,5262,5264,5266],{"class":2980,"line":4552},[2978,5246,5141],{"class":3711},[2978,5248,5089],{"class":3000},[2978,5250,3135],{"class":2992},[2978,5252,5253],{"class":2984},"Repository",[2978,5255,3562],{"class":2992},[2978,5257,4150],{"class":2984},[2978,5259,4307],{"class":2992},[2978,5261,4310],{"class":2984},[2978,5263,3567],{"class":2992},[2978,5265,5160],{"class":2988},[2978,5267,5268],{"class":2992},",\n",[2978,5270,5271,5274,5276],{"class":2980,"line":4557},[2978,5272,5273],{"class":2984},"                                      ExecutorService",[2978,5275,5196],{"class":2988},[2978,5277,5278],{"class":2992},") {\n",[2978,5280,5281,5284,5286,5288],{"class":2980,"line":4580},[2978,5282,5283],{"class":3711},"        this",[2978,5285,3091],{"class":2992},[2978,5287,5160],{"class":2988},[2978,5289,5290],{"class":2992}," = syncRepository;\n",[2978,5292,5293,5295,5297,5300],{"class":2980,"line":4585},[2978,5294,5283],{"class":3711},[2978,5296,3091],{"class":2992},[2978,5298,5299],{"class":2988},"executor",[2978,5301,5302],{"class":2992}," = executor;\n",[2978,5304,5305],{"class":2980,"line":4590},[2978,5306,5307],{"class":2992},"    }\n",[2978,5309,5310],{"class":2980,"line":4596},[2978,5311,3067],{"emptyLinePlaceholder":3066},[2978,5313,5314],{"class":2980,"line":4601},[2978,5315,4322],{"class":3073},[2978,5317,5318],{"class":2980,"line":4613},[2978,5319,5320],{"class":3073},"     * Створює асинхронний репозиторій з ForkJoinPool.commonPool().\n",[2978,5322,5323],{"class":2980,"line":4623},[2978,5324,5325],{"class":3073},"     * Зручний конструктор для простих випадків.\n",[2978,5327,5328],{"class":2980,"line":4628},[2978,5329,4347],{"class":3073},[2978,5331,5332,5334,5336,5338],{"class":2980,"line":4650},[2978,5333,4352],{"class":3073},[2978,5335,4266],{"class":3711},[2978,5337,5224],{"class":2988},[2978,5339,5227],{"class":3073},[2978,5341,5342],{"class":2980,"line":4655},[2978,5343,4377],{"class":3073},[2978,5345,5346,5348,5350,5352,5354,5356,5358,5360,5362,5364,5366],{"class":2980,"line":4660},[2978,5347,5141],{"class":3711},[2978,5349,5089],{"class":3000},[2978,5351,3135],{"class":2992},[2978,5353,5253],{"class":2984},[2978,5355,3562],{"class":2992},[2978,5357,4150],{"class":2984},[2978,5359,4307],{"class":2992},[2978,5361,4310],{"class":2984},[2978,5363,3567],{"class":2992},[2978,5365,5160],{"class":2988},[2978,5367,5278],{"class":2992},[2978,5369,5370,5372,5375,5378],{"class":2980,"line":4666},[2978,5371,5283],{"class":3711},[2978,5373,5374],{"class":2992},"(syncRepository, ",[2978,5376,5377],{"class":3711},"null",[2978,5379,3612],{"class":2992},[2978,5381,5382],{"class":2980,"line":4671},[2978,5383,5307],{"class":2992},[2978,5385,5386],{"class":2980,"line":4682},[2978,5387,3067],{"emptyLinePlaceholder":3066},[2978,5389,5390],{"class":2980,"line":4692},[2978,5391,5392],{"class":3073},"    // =========================================================\n",[2978,5394,5395],{"class":2980,"line":4697},[2978,5396,5397],{"class":3073},"    // Реалізація AsyncRepository через делегування\n",[2978,5399,5400],{"class":2980,"line":4720},[2978,5401,5392],{"class":3073},[2978,5403,5404],{"class":2980,"line":4725},[2978,5405,3067],{"emptyLinePlaceholder":3066},[2978,5407,5408],{"class":2980,"line":4730},[2978,5409,4322],{"class":3073},[2978,5411,5412],{"class":2980,"line":4736},[2978,5413,5414],{"class":3073},"     * Асинхронно знаходить сутність за ID.\n",[2978,5416,5417],{"class":2980,"line":4741},[2978,5418,4332],{"class":3073},[2978,5420,5421],{"class":2980,"line":4751},[2978,5422,5423],{"class":3073},"     * Виконує {@code syncRepository.findById(id)} у пулі потоків.\n",[2978,5425,5426],{"class":2980,"line":4756},[2978,5427,5428],{"class":3073},"     * Основний потік не блокується — метод повертається негайно.\n",[2978,5430,5431],{"class":2980,"line":4773},[2978,5432,4377],{"class":3073},[2978,5434,5435,5438],{"class":2980,"line":4778},[2978,5436,5437],{"class":2992},"    @",[2978,5439,5440],{"class":2984},"Override\n",[2978,5442,5443,5446,5449,5451,5453,5455,5457,5459,5461,5463,5465,5467],{"class":2980,"line":4783},[2978,5444,5445],{"class":3711},"    public",[2978,5447,5448],{"class":2984}," CompletableFuture",[2978,5450,3562],{"class":2992},[2978,5452,4397],{"class":2984},[2978,5454,3562],{"class":2992},[2978,5456,4150],{"class":2984},[2978,5458,4404],{"class":2992},[2978,5460,3579],{"class":3000},[2978,5462,3135],{"class":2992},[2978,5464,4310],{"class":2984},[2978,5466,4357],{"class":2988},[2978,5468,5278],{"class":2992},[2978,5470,5471,5474,5477,5479,5481,5483,5485,5487],{"class":2980,"line":4789},[2978,5472,5473],{"class":2996},"        return",[2978,5475,5476],{"class":3000}," runAsync",[2978,5478,3708],{"class":2992},[2978,5480,3712],{"class":3711},[2978,5482,5224],{"class":2988},[2978,5484,3091],{"class":2992},[2978,5486,3094],{"class":3000},[2978,5488,5489],{"class":2992},"(id));\n",[2978,5491,5492],{"class":2980,"line":4794},[2978,5493,5307],{"class":2992},[2978,5495,5496],{"class":2980,"line":4805},[2978,5497,3067],{"emptyLinePlaceholder":3066},[2978,5499,5500],{"class":2980,"line":4815},[2978,5501,4322],{"class":3073},[2978,5503,5504],{"class":2980,"line":4820},[2978,5505,4430],{"class":3073},[2978,5507,5508],{"class":2980,"line":4842},[2978,5509,4332],{"class":3073},[2978,5511,5513],{"class":2980,"line":5512},87,[2978,5514,5515],{"class":3073},"     * \u003Cb>Увага:\u003C/b> Для великих таблиць (>10000 рядків) цей метод\n",[2978,5517,5519],{"class":2980,"line":5518},88,[2978,5520,5521],{"class":3073},"     * може спричинити OutOfMemoryError. Використовуйте пагінацію\n",[2978,5523,5525],{"class":2980,"line":5524},89,[2978,5526,5527],{"class":3073},"     * або streaming для великих датасетів.\n",[2978,5529,5531],{"class":2980,"line":5530},90,[2978,5532,4377],{"class":3073},[2978,5534,5536,5538],{"class":2980,"line":5535},91,[2978,5537,5437],{"class":2992},[2978,5539,5440],{"class":2984},[2978,5541,5543,5545,5547,5549,5551,5553,5555,5557,5559],{"class":2980,"line":5542},92,[2978,5544,5445],{"class":3711},[2978,5546,5448],{"class":2984},[2978,5548,3562],{"class":2992},[2978,5550,4477],{"class":2984},[2978,5552,3562],{"class":2992},[2978,5554,4150],{"class":2984},[2978,5556,4404],{"class":2992},[2978,5558,4486],{"class":3000},[2978,5560,5561],{"class":2992},"() {\n",[2978,5563,5565,5567,5569,5571,5573,5575,5577,5580],{"class":2980,"line":5564},93,[2978,5566,5473],{"class":2996},[2978,5568,5476],{"class":3000},[2978,5570,3708],{"class":2992},[2978,5572,3712],{"class":3711},[2978,5574,5224],{"class":2988},[2978,5576,3091],{"class":2992},[2978,5578,5579],{"class":3000},"findAll",[2978,5581,3538],{"class":2992},[2978,5583,5585],{"class":2980,"line":5584},94,[2978,5586,5307],{"class":2992},[2978,5588,5590],{"class":2980,"line":5589},95,[2978,5591,3067],{"emptyLinePlaceholder":3066},[2978,5593,5595],{"class":2980,"line":5594},96,[2978,5596,4322],{"class":3073},[2978,5598,5600],{"class":2980,"line":5599},97,[2978,5601,4504],{"class":3073},[2978,5603,5605],{"class":2980,"line":5604},98,[2978,5606,4332],{"class":3073},[2978,5608,5610],{"class":2980,"line":5609},99,[2978,5611,4515],{"class":3073},[2978,5613,5615],{"class":2980,"line":5614},100,[2978,5616,5617],{"class":3073},"     * з {@code null} (Void) після успішного збереження або з виключенням.\n",[2978,5619,5621],{"class":2980,"line":5620},101,[2978,5622,4377],{"class":3073},[2978,5624,5626,5628],{"class":2980,"line":5625},102,[2978,5627,5437],{"class":2992},[2978,5629,5440],{"class":2984},[2978,5631,5633,5635,5637,5639,5641,5643,5645,5647,5649,5651],{"class":2980,"line":5632},103,[2978,5634,5445],{"class":3711},[2978,5636,5448],{"class":2984},[2978,5638,3562],{"class":2992},[2978,5640,4564],{"class":2984},[2978,5642,3567],{"class":2992},[2978,5644,4569],{"class":3000},[2978,5646,3135],{"class":2992},[2978,5648,4150],{"class":2984},[2978,5650,4536],{"class":2988},[2978,5652,5278],{"class":2992},[2978,5654,5656,5658,5660,5662,5664],{"class":2980,"line":5655},104,[2978,5657,5473],{"class":2996},[2978,5659,5476],{"class":3000},[2978,5661,3708],{"class":2992},[2978,5663,3712],{"class":3711},[2978,5665,3715],{"class":2992},[2978,5667,5669,5672,5674,5677],{"class":2980,"line":5668},105,[2978,5670,5671],{"class":2988},"            syncRepository",[2978,5673,3091],{"class":2992},[2978,5675,5676],{"class":3000},"save",[2978,5678,5679],{"class":2992},"(entity);\n",[2978,5681,5683,5686,5689,5692],{"class":2980,"line":5682},106,[2978,5684,5685],{"class":2996},"            return",[2978,5687,5688],{"class":3711}," null",[2978,5690,5691],{"class":2992},"; ",[2978,5693,5694],{"class":3073},"// Void\n",[2978,5696,5698],{"class":2980,"line":5697},107,[2978,5699,5700],{"class":2992},"        });\n",[2978,5702,5704],{"class":2980,"line":5703},108,[2978,5705,5307],{"class":2992},[2978,5707,5709],{"class":2980,"line":5708},109,[2978,5710,3067],{"emptyLinePlaceholder":3066},[2978,5712,5714],{"class":2980,"line":5713},110,[2978,5715,4322],{"class":3073},[2978,5717,5719],{"class":2980,"line":5718},111,[2978,5720,4593],{"class":3073},[2978,5722,5724],{"class":2980,"line":5723},112,[2978,5725,4377],{"class":3073},[2978,5727,5729,5731],{"class":2980,"line":5728},113,[2978,5730,5437],{"class":2992},[2978,5732,5440],{"class":2984},[2978,5734,5736,5738,5740,5742,5744,5746,5748,5750,5752,5754],{"class":2980,"line":5735},114,[2978,5737,5445],{"class":3711},[2978,5739,5448],{"class":2984},[2978,5741,3562],{"class":2992},[2978,5743,4564],{"class":2984},[2978,5745,3567],{"class":2992},[2978,5747,4639],{"class":3000},[2978,5749,3135],{"class":2992},[2978,5751,4150],{"class":2984},[2978,5753,4536],{"class":2988},[2978,5755,5278],{"class":2992},[2978,5757,5759,5761,5763,5765,5767],{"class":2980,"line":5758},115,[2978,5760,5473],{"class":2996},[2978,5762,5476],{"class":3000},[2978,5764,3708],{"class":2992},[2978,5766,3712],{"class":3711},[2978,5768,3715],{"class":2992},[2978,5770,5772,5774,5776,5779],{"class":2980,"line":5771},116,[2978,5773,5671],{"class":2988},[2978,5775,3091],{"class":2992},[2978,5777,5778],{"class":3000},"update",[2978,5780,5679],{"class":2992},[2978,5782,5784,5786,5788],{"class":2980,"line":5783},117,[2978,5785,5685],{"class":2996},[2978,5787,5688],{"class":3711},[2978,5789,3749],{"class":2992},[2978,5791,5793],{"class":2980,"line":5792},118,[2978,5794,5700],{"class":2992},[2978,5796,5798],{"class":2980,"line":5797},119,[2978,5799,5307],{"class":2992},[2978,5801,5803],{"class":2980,"line":5802},120,[2978,5804,3067],{"emptyLinePlaceholder":3066},[2978,5806,5808],{"class":2980,"line":5807},121,[2978,5809,4322],{"class":3073},[2978,5811,5813],{"class":2980,"line":5812},122,[2978,5814,5815],{"class":3073},"     * Асинхронно видаляє сутність за ID.\n",[2978,5817,5819],{"class":2980,"line":5818},123,[2978,5820,4377],{"class":3073},[2978,5822,5824,5826],{"class":2980,"line":5823},124,[2978,5825,5437],{"class":2992},[2978,5827,5440],{"class":2984},[2978,5829,5831,5833,5835,5837,5839,5841,5843,5845,5847,5849],{"class":2980,"line":5830},125,[2978,5832,5445],{"class":3711},[2978,5834,5448],{"class":2984},[2978,5836,3562],{"class":2992},[2978,5838,4704],{"class":2984},[2978,5840,3567],{"class":2992},[2978,5842,4709],{"class":3000},[2978,5844,3135],{"class":2992},[2978,5846,4310],{"class":2984},[2978,5848,4357],{"class":2988},[2978,5850,5278],{"class":2992},[2978,5852,5854,5856,5858,5860,5862,5864,5866,5869],{"class":2980,"line":5853},126,[2978,5855,5473],{"class":2996},[2978,5857,5476],{"class":3000},[2978,5859,3708],{"class":2992},[2978,5861,3712],{"class":3711},[2978,5863,5224],{"class":2988},[2978,5865,3091],{"class":2992},[2978,5867,5868],{"class":3000},"deleteById",[2978,5870,5489],{"class":2992},[2978,5872,5874],{"class":2980,"line":5873},127,[2978,5875,5307],{"class":2992},[2978,5877,5879],{"class":2980,"line":5878},128,[2978,5880,3067],{"emptyLinePlaceholder":3066},[2978,5882,5884],{"class":2980,"line":5883},129,[2978,5885,4322],{"class":3073},[2978,5887,5889],{"class":2980,"line":5888},130,[2978,5890,4733],{"class":3073},[2978,5892,5894],{"class":2980,"line":5893},131,[2978,5895,4377],{"class":3073},[2978,5897,5899,5901],{"class":2980,"line":5898},132,[2978,5900,5437],{"class":2992},[2978,5902,5440],{"class":2984},[2978,5904,5906,5908,5910,5912,5914,5916,5918],{"class":2980,"line":5905},133,[2978,5907,5445],{"class":3711},[2978,5909,5448],{"class":2984},[2978,5911,3562],{"class":2992},[2978,5913,4763],{"class":2984},[2978,5915,3567],{"class":2992},[2978,5917,4768],{"class":3000},[2978,5919,5561],{"class":2992},[2978,5921,5923,5925,5927,5929,5931,5933,5935,5938],{"class":2980,"line":5922},134,[2978,5924,5473],{"class":2996},[2978,5926,5476],{"class":3000},[2978,5928,3708],{"class":2992},[2978,5930,3712],{"class":3711},[2978,5932,5224],{"class":2988},[2978,5934,3091],{"class":2992},[2978,5936,5937],{"class":3000},"count",[2978,5939,3538],{"class":2992},[2978,5941,5943],{"class":2980,"line":5942},135,[2978,5944,5307],{"class":2992},[2978,5946,5948],{"class":2980,"line":5947},136,[2978,5949,3067],{"emptyLinePlaceholder":3066},[2978,5951,5953],{"class":2980,"line":5952},137,[2978,5954,4322],{"class":3073},[2978,5956,5958],{"class":2980,"line":5957},138,[2978,5959,4786],{"class":3073},[2978,5961,5963],{"class":2980,"line":5962},139,[2978,5964,4377],{"class":3073},[2978,5966,5968,5970],{"class":2980,"line":5967},140,[2978,5969,5437],{"class":2992},[2978,5971,5440],{"class":2984},[2978,5973,5975,5977,5979,5981,5983,5985,5987,5989,5991,5993],{"class":2980,"line":5974},141,[2978,5976,5445],{"class":3711},[2978,5978,5448],{"class":2984},[2978,5980,3562],{"class":2992},[2978,5982,4704],{"class":2984},[2978,5984,3567],{"class":2992},[2978,5986,4831],{"class":3000},[2978,5988,3135],{"class":2992},[2978,5990,4310],{"class":2984},[2978,5992,4357],{"class":2988},[2978,5994,5278],{"class":2992},[2978,5996,5998,6000,6002,6004,6006,6008,6010,6013],{"class":2980,"line":5997},142,[2978,5999,5473],{"class":2996},[2978,6001,5476],{"class":3000},[2978,6003,3708],{"class":2992},[2978,6005,3712],{"class":3711},[2978,6007,5224],{"class":2988},[2978,6009,3091],{"class":2992},[2978,6011,6012],{"class":3000},"existsById",[2978,6014,5489],{"class":2992},[2978,6016,6018],{"class":2980,"line":6017},143,[2978,6019,5307],{"class":2992},[2978,6021,6023],{"class":2980,"line":6022},144,[2978,6024,3067],{"emptyLinePlaceholder":3066},[2978,6026,6028],{"class":2980,"line":6027},145,[2978,6029,5392],{"class":3073},[2978,6031,6033],{"class":2980,"line":6032},146,[2978,6034,6035],{"class":3073},"    // Утилітний метод для запуску асинхронних операцій\n",[2978,6037,6039],{"class":2980,"line":6038},147,[2978,6040,5392],{"class":3073},[2978,6042,6044],{"class":2980,"line":6043},148,[2978,6045,3067],{"emptyLinePlaceholder":3066},[2978,6047,6049],{"class":2980,"line":6048},149,[2978,6050,4322],{"class":3073},[2978,6052,6054],{"class":2980,"line":6053},150,[2978,6055,6056],{"class":3073},"     * Виконує {@link java.util.function.Supplier} у пулі потоків\n",[2978,6058,6060],{"class":2980,"line":6059},151,[2978,6061,6062],{"class":3073},"     * і повертає {@link CompletableFuture} з результатом.\n",[2978,6064,6066],{"class":2980,"line":6065},152,[2978,6067,4332],{"class":3073},[2978,6069,6071],{"class":2980,"line":6070},153,[2978,6072,6073],{"class":3073},"     * Якщо {@code executor} заданий — використовує його,\n",[2978,6075,6077],{"class":2980,"line":6076},154,[2978,6078,6079],{"class":3073},"     * інакше — {@code ForkJoinPool.commonPool()}.\n",[2978,6081,6083],{"class":2980,"line":6082},155,[2978,6084,4347],{"class":3073},[2978,6086,6088,6090,6092,6095],{"class":2980,"line":6087},156,[2978,6089,4352],{"class":3073},[2978,6091,4266],{"class":3711},[2978,6093,6094],{"class":2988}," supplier",[2978,6096,6097],{"class":3073}," лямбда, що виконує синхронну операцію\n",[2978,6099,6101,6103,6105,6108],{"class":2980,"line":6100},157,[2978,6102,4352],{"class":3073},[2978,6104,4266],{"class":3711},[2978,6106,6107],{"class":2988}," \u003CR>",[2978,6109,6110],{"class":3073},"      тип результату\n",[2978,6112,6114,6116,6118],{"class":2980,"line":6113},158,[2978,6115,4352],{"class":3073},[2978,6117,4368],{"class":3711},[2978,6119,6120],{"class":3073}," CompletableFuture з результатом виконання\n",[2978,6122,6124],{"class":2980,"line":6123},159,[2978,6125,4377],{"class":3073},[2978,6127,6129,6131,6134,6137,6139,6141,6143,6145,6147,6150,6152,6154,6156,6158,6160,6163,6165,6168,6170,6172,6174,6177],{"class":2980,"line":6128},160,[2978,6130,5141],{"class":3711},[2978,6132,6133],{"class":2992}," \u003C",[2978,6135,6136],{"class":2984},"R",[2978,6138,3567],{"class":2992},[2978,6140,3559],{"class":2984},[2978,6142,3562],{"class":2992},[2978,6144,6136],{"class":2984},[2978,6146,3567],{"class":2992},[2978,6148,6149],{"class":3000},"runAsync",[2978,6151,3135],{"class":2992},[2978,6153,2972],{"class":2984},[2978,6155,3091],{"class":2992},[2978,6157,4392],{"class":2984},[2978,6159,3091],{"class":2992},[2978,6161,6162],{"class":2984},"function",[2978,6164,3091],{"class":2992},[2978,6166,6167],{"class":2984},"Supplier",[2978,6169,3562],{"class":2992},[2978,6171,6136],{"class":2984},[2978,6173,3567],{"class":2992},[2978,6175,6176],{"class":2988},"supplier",[2978,6178,5278],{"class":2992},[2978,6180,6182,6185,6188,6190],{"class":2980,"line":6181},161,[2978,6183,6184],{"class":2996},"        if",[2978,6186,6187],{"class":2992}," (executor != ",[2978,6189,5377],{"class":3711},[2978,6191,5278],{"class":2992},[2978,6193,6195,6197,6199,6201,6203],{"class":2980,"line":6194},162,[2978,6196,5685],{"class":2996},[2978,6198,5448],{"class":2988},[2978,6200,3091],{"class":2992},[2978,6202,3705],{"class":3000},[2978,6204,6205],{"class":2992},"(supplier, executor);\n",[2978,6207,6209,6212,6215],{"class":2980,"line":6208},163,[2978,6210,6211],{"class":2992},"        } ",[2978,6213,6214],{"class":2996},"else",[2978,6216,3715],{"class":2992},[2978,6218,6220,6222,6224,6226,6228],{"class":2980,"line":6219},164,[2978,6221,5685],{"class":2996},[2978,6223,5448],{"class":2988},[2978,6225,3091],{"class":2992},[2978,6227,3705],{"class":3000},[2978,6229,6230],{"class":2992},"(supplier);\n",[2978,6232,6234],{"class":2980,"line":6233},165,[2978,6235,6236],{"class":2992},"        }\n",[2978,6238,6240],{"class":2980,"line":6239},166,[2978,6241,5307],{"class":2992},[2978,6243,6245],{"class":2980,"line":6244},167,[2978,6246,3067],{"emptyLinePlaceholder":3066},[2978,6248,6250],{"class":2980,"line":6249},168,[2978,6251,4322],{"class":3073},[2978,6253,6255],{"class":2980,"line":6254},169,[2978,6256,6257],{"class":3073},"     * Закриває пул потоків (якщо він був переданий через конструктор).\n",[2978,6259,6261],{"class":2980,"line":6260},170,[2978,6262,4332],{"class":3073},[2978,6264,6266],{"class":2980,"line":6265},171,[2978,6267,6268],{"class":3073},"     * \u003Cb>Важливо:\u003C/b> Викликайте цей метод при завершенні роботи додатку,\n",[2978,6270,6272],{"class":2980,"line":6271},172,[2978,6273,6274],{"class":3073},"     * інакше потоки залишаться активними і JVM не завершиться.\n",[2978,6276,6278],{"class":2980,"line":6277},173,[2978,6279,4332],{"class":3073},[2978,6281,6283],{"class":2980,"line":6282},174,[2978,6284,6285],{"class":3073},"     * Якщо використовується {@code ForkJoinPool.commonPool()} (executor == null),\n",[2978,6287,6289],{"class":2980,"line":6288},175,[2978,6290,6291],{"class":3073},"     * цей метод нічого не робить — commonPool керується JVM.\n",[2978,6293,6295],{"class":2980,"line":6294},176,[2978,6296,4377],{"class":3073},[2978,6298,6300,6302,6305,6308],{"class":2980,"line":6299},177,[2978,6301,5445],{"class":3711},[2978,6303,6304],{"class":2984}," void",[2978,6306,6307],{"class":3000}," shutdown",[2978,6309,5561],{"class":2992},[2978,6311,6313,6315,6317,6319],{"class":2980,"line":6312},178,[2978,6314,6184],{"class":2996},[2978,6316,6187],{"class":2992},[2978,6318,5377],{"class":3711},[2978,6320,5278],{"class":2992},[2978,6322,6324,6327,6329,6332],{"class":2980,"line":6323},179,[2978,6325,6326],{"class":2988},"            executor",[2978,6328,3091],{"class":2992},[2978,6330,6331],{"class":3000},"shutdown",[2978,6333,3103],{"class":2992},[2978,6335,6337],{"class":2980,"line":6336},180,[2978,6338,6236],{"class":2992},[2978,6340,6342],{"class":2980,"line":6341},181,[2978,6343,5307],{"class":2992},[2978,6345,6347],{"class":2980,"line":6346},182,[2978,6348,4845],{"class":2992},[2964,6350,6351],{},[3246,6352,6353],{},"Ключові архітектурні рішення:",[4854,6355,6356,6368,6396,6408],{},[4083,6357,6358,4059,6361,6363,6364,6367],{},[3246,6359,6360],{},"Рядки 38–40",[2975,6362,5160],{},"): Композиція замість успадкування. Асинхронний репозиторій ",[3246,6365,6366],{},"не є"," підкласом синхронного — він його обгортає. Це дозволяє легко додати асинхронність до будь-якого існуючого репозиторію без зміни його коду.",[4083,6369,6370,4059,6373,6375,6376,6378,6379],{},[3246,6371,6372],{},"Рядки 43–45",[2975,6374,5299],{},"): Можливість передати власний ",[2975,6377,4124],{}," дає контроль над:",[4854,6380,6381,6387,6390,6393],{},[4083,6382,6383,6384,3936],{},"Розміром пулу потоків (для I/O-операцій рекомендується ",[2975,6385,6386],{},"CPU_CORES × 2",[4083,6388,6389],{},"Політикою черги (bounded vs unbounded)",[4083,6391,6392],{},"Пріоритетами потоків",[4083,6394,6395],{},"Моніторингом (через custom ThreadFactory)",[4083,6397,6398,4059,6401,6403,6404,6407],{},[3246,6399,6400],{},"Рядки 82–84",[2975,6402,3579],{},"): Всі методи реалізовані через єдиний шаблон: ",[2975,6405,6406],{},"runAsync(() -> syncRepository.method())",". Це мінімізує дублювання коду.",[4083,6409,6410,4059,6413,6415,6416,6419,6420,6423],{},[3246,6411,6412],{},"Рядки 158–165",[2975,6414,6149],{},"): Центральний метод, що інкапсулює логіку вибору пулу потоків. Якщо ",[2975,6417,6418],{},"executor == null"," — використовується ",[2975,6421,6422],{},"ForkJoinPool.commonPool()"," (спільний пул для всього додатку, керується JVM).",[6425,6426,6427,6432,6450],"warning",{},[2964,6428,6429],{},[3246,6430,6431],{},"ForkJoinPool.commonPool() vs власний ExecutorService:",[4854,6433,6434,6440],{},[4083,6435,6436,6439],{},[3246,6437,6438],{},"commonPool"," (за замовчуванням): Простий у використанні, не потребує shutdown(). Але спільний для всього додатку — якщо інший код блокує потоки commonPool, ваші запити сповільнюються.",[4083,6441,6442,6445,6446,6449],{},[3246,6443,6444],{},"Власний ExecutorService",": Повний контроль, ізоляція від іншого коду. Але вимагає явного ",[2975,6447,6448],{},"shutdown()"," при завершенні додатку.",[2964,6451,6452,6455,6456,6458],{},[3246,6453,6454],{},"Рекомендація:"," Для production використовуйте власний ",[2975,6457,4124],{}," з обмеженою чергою та моніторингом.",[3458,6460],{},[2959,6462,6464],{"id":6463},"конкретні-реалізації-asyncauthorrepository","Конкретні реалізації: AsyncAuthorRepository",[2964,6466,6467,6468,6470,6471,6474],{},"Тепер створимо конкретну асинхронну реалізацію для сутності ",[2975,6469,3120],{},". Завдяки ",[2975,6472,6473],{},"AbstractAsyncRepository"," код є надзвичайно компактним:",[2968,6476,6478],{"className":2970,"code":6477,"language":2972,"meta":4161,"style":2973},"package com.example.audiobook.repository.async;\n\nimport com.example.audiobook.domain.Author;\nimport com.example.audiobook.repository.AuthorRepository;\n\nimport java.util.List;\nimport java.util.UUID;\nimport java.util.concurrent.CompletableFuture;\nimport java.util.concurrent.ExecutorService;\n\n/**\n * Асинхронна реалізація {@link AuthorRepository}.\n * \u003Cp>\n * Обгортає синхронний {@link com.example.audiobook.repository.jdbc.JdbcAuthorRepository}\n * і виконує всі операції асинхронно через {@link ExecutorService}.\n * \u003Cp>\n * Додає асинхронні версії специфічних методів:\n * {@link #findByLastNameAsync(String)}, {@link #findByFullNameAsync(String, String)}.\n */\npublic class AsyncAuthorRepository extends AbstractAsyncRepository\u003CAuthor, UUID> {\n\n    /**\n     * Синхронний репозиторій, приведений до специфічного типу\n     * для доступу до методів {@link AuthorRepository}.\n     */\n    private final AuthorRepository authorRepository;\n\n    /**\n     * Створює асинхронний репозиторій авторів з власним пулом потоків.\n     *\n     * @param authorRepository синхронний JdbcAuthorRepository\n     * @param executor         пул потоків для асинхронних операцій\n     */\n    public AsyncAuthorRepository(AuthorRepository authorRepository,\n                                 ExecutorService executor) {\n        super(authorRepository, executor);\n        this.authorRepository = authorRepository;\n    }\n\n    /**\n     * Створює асинхронний репозиторій з ForkJoinPool.commonPool().\n     */\n    public AsyncAuthorRepository(AuthorRepository authorRepository) {\n        this(authorRepository, null);\n    }\n\n    // =========================================================\n    // Асинхронні версії специфічних методів AuthorRepository\n    // =========================================================\n\n    /**\n     * Асинхронно знаходить авторів за частиною прізвища.\n     * \u003Cp>\n     * Виконує {@code authorRepository.findByLastName()} у пулі потоків.\n     * Корисно для автодоповнення у пошуковому полі — не блокує UI-потік.\n     *\n     * @param lastNamePart підрядок прізвища (регістр-незалежний)\n     * @return CompletableFuture зі списком знайдених авторів\n     */\n    public CompletableFuture\u003CList\u003CAuthor>> findByLastNameAsync(String lastNamePart) {\n        return runAsync(() -> authorRepository.findByLastName(lastNamePart));\n    }\n\n    /**\n     * Асинхронно знаходить автора за точним прізвищем та ім'ям.\n     *\n     * @param lastName  прізвище (точний збіг)\n     * @param firstName ім'я (точний збіг)\n     * @return CompletableFuture з Optional[Author]\n     */\n    public CompletableFuture\u003Cjava.util.Optional\u003CAuthor>> findByFullNameAsync(\n            String lastName, String firstName) {\n        return runAsync(() -> authorRepository.findByFullName(lastName, firstName));\n    }\n}\n",[2975,6479,6480,6486,6490,6497,6504,6508,6514,6521,6527,6533,6537,6541,6546,6550,6555,6560,6564,6569,6596,6600,6625,6629,6633,6638,6643,6647,6662,6666,6670,6675,6679,6690,6701,6705,6719,6728,6736,6748,6752,6756,6760,6764,6768,6782,6793,6797,6801,6805,6810,6814,6818,6822,6827,6831,6836,6841,6845,6857,6866,6870,6897,6917,6921,6925,6929,6934,6938,6950,6962,6971,6975,7005,7020,7040,7044],{"__ignoreMap":2973},[2978,6481,6482,6484],{"class":2980,"line":2981},[2978,6483,4168],{"class":3711},[2978,6485,4171],{"class":2992},[2978,6487,6488],{"class":2980,"line":3007},[2978,6489,3067],{"emptyLinePlaceholder":3066},[2978,6491,6492,6494],{"class":2980,"line":3026},[2978,6493,4180],{"class":3711},[2978,6495,6496],{"class":2992}," com.example.audiobook.domain.Author;\n",[2978,6498,6499,6501],{"class":2980,"line":3045},[2978,6500,4180],{"class":3711},[2978,6502,6503],{"class":2992}," com.example.audiobook.repository.AuthorRepository;\n",[2978,6505,6506],{"class":2980,"line":3063},[2978,6507,3067],{"emptyLinePlaceholder":3066},[2978,6509,6510,6512],{"class":2980,"line":3070},[2978,6511,4180],{"class":3711},[2978,6513,4183],{"class":2992},[2978,6515,6516,6518],{"class":2980,"line":3077},[2978,6517,4180],{"class":3711},[2978,6519,6520],{"class":2992}," java.util.UUID;\n",[2978,6522,6523,6525],{"class":2980,"line":3106},[2978,6524,4180],{"class":3711},[2978,6526,4190],{"class":2992},[2978,6528,6529,6531],{"class":2980,"line":3111},[2978,6530,4180],{"class":3711},[2978,6532,4952],{"class":2992},[2978,6534,6535],{"class":2980,"line":3117},[2978,6536,3067],{"emptyLinePlaceholder":3066},[2978,6538,6539],{"class":2980,"line":3157},[2978,6540,4199],{"class":3073},[2978,6542,6543],{"class":2980,"line":3194},[2978,6544,6545],{"class":3073}," * Асинхронна реалізація {@link AuthorRepository}.\n",[2978,6547,6548],{"class":2980,"line":3219},[2978,6549,4209],{"class":3073},[2978,6551,6552],{"class":2980,"line":3224},[2978,6553,6554],{"class":3073}," * Обгортає синхронний {@link com.example.audiobook.repository.jdbc.JdbcAuthorRepository}\n",[2978,6556,6557],{"class":2980,"line":3336},[2978,6558,6559],{"class":3073}," * і виконує всі операції асинхронно через {@link ExecutorService}.\n",[2978,6561,6562],{"class":2980,"line":3341},[2978,6563,4209],{"class":3073},[2978,6565,6566],{"class":2980,"line":3346},[2978,6567,6568],{"class":3073}," * Додає асинхронні версії специфічних методів:\n",[2978,6570,6571,6574,6577,6580,6583,6586,6588,6590,6593],{"class":2980,"line":3352},[2978,6572,6573],{"class":3073}," * {",[2978,6575,6576],{"class":3711},"@link",[2978,6578,6579],{"class":3073}," #",[2978,6581,6582],{"class":2988},"findByLastNameAsync(String)",[2978,6584,6585],{"class":3073},"}, {",[2978,6587,6576],{"class":3711},[2978,6589,6579],{"class":3073},[2978,6591,6592],{"class":2988},"findByFullNameAsync(String, String)",[2978,6594,6595],{"class":3073},"}.\n",[2978,6597,6598],{"class":2980,"line":3358},[2978,6599,4289],{"class":3073},[2978,6601,6602,6604,6606,6609,6612,6614,6616,6618,6620,6623],{"class":2980,"line":3363},[2978,6603,4294],{"class":3711},[2978,6605,5086],{"class":3711},[2978,6607,6608],{"class":2984}," AsyncAuthorRepository",[2978,6610,6611],{"class":3711}," extends",[2978,6613,5089],{"class":2984},[2978,6615,3562],{"class":2992},[2978,6617,3120],{"class":2984},[2978,6619,4307],{"class":2992},[2978,6621,6622],{"class":2984},"UUID",[2978,6624,4313],{"class":2992},[2978,6626,6627],{"class":2980,"line":3368},[2978,6628,3067],{"emptyLinePlaceholder":3066},[2978,6630,6631],{"class":2980,"line":3373},[2978,6632,4322],{"class":3073},[2978,6634,6635],{"class":2980,"line":3379},[2978,6636,6637],{"class":3073},"     * Синхронний репозиторій, приведений до специфічного типу\n",[2978,6639,6640],{"class":2980,"line":3384},[2978,6641,6642],{"class":3073},"     * для доступу до методів {@link AuthorRepository}.\n",[2978,6644,6645],{"class":2980,"line":3389},[2978,6646,4377],{"class":3073},[2978,6648,6649,6652,6654,6657,6660],{"class":2980,"line":3395},[2978,6650,6651],{"class":3711},"    private",[2978,6653,5144],{"class":3711},[2978,6655,6656],{"class":2984}," AuthorRepository",[2978,6658,6659],{"class":2988}," authorRepository",[2978,6661,3749],{"class":2992},[2978,6663,6664],{"class":2980,"line":3401},[2978,6665,3067],{"emptyLinePlaceholder":3066},[2978,6667,6668],{"class":2980,"line":3406},[2978,6669,4322],{"class":3073},[2978,6671,6672],{"class":2980,"line":3411},[2978,6673,6674],{"class":3073},"     * Створює асинхронний репозиторій авторів з власним пулом потоків.\n",[2978,6676,6677],{"class":2980,"line":3416},[2978,6678,4347],{"class":3073},[2978,6680,6681,6683,6685,6687],{"class":2980,"line":4363},[2978,6682,4352],{"class":3073},[2978,6684,4266],{"class":3711},[2978,6686,6659],{"class":2988},[2978,6688,6689],{"class":3073}," синхронний JdbcAuthorRepository\n",[2978,6691,6692,6694,6696,6698],{"class":2980,"line":4374},[2978,6693,4352],{"class":3073},[2978,6695,4266],{"class":3711},[2978,6697,5196],{"class":2988},[2978,6699,6700],{"class":3073},"         пул потоків для асинхронних операцій\n",[2978,6702,6703],{"class":2980,"line":4380},[2978,6704,4377],{"class":3073},[2978,6706,6707,6709,6711,6713,6715,6717],{"class":2980,"line":4417},[2978,6708,5445],{"class":3711},[2978,6710,6608],{"class":3000},[2978,6712,3135],{"class":2992},[2978,6714,3010],{"class":2984},[2978,6716,6659],{"class":2988},[2978,6718,5268],{"class":2992},[2978,6720,6721,6724,6726],{"class":2980,"line":4422},[2978,6722,6723],{"class":2984},"                                 ExecutorService",[2978,6725,5196],{"class":2988},[2978,6727,5278],{"class":2992},[2978,6729,6730,6733],{"class":2980,"line":4427},[2978,6731,6732],{"class":3711},"        super",[2978,6734,6735],{"class":2992},"(authorRepository, executor);\n",[2978,6737,6738,6740,6742,6745],{"class":2980,"line":4433},[2978,6739,5283],{"class":3711},[2978,6741,3091],{"class":2992},[2978,6743,6744],{"class":2988},"authorRepository",[2978,6746,6747],{"class":2992}," = authorRepository;\n",[2978,6749,6750],{"class":2980,"line":4438},[2978,6751,5307],{"class":2992},[2978,6753,6754],{"class":2980,"line":4444},[2978,6755,3067],{"emptyLinePlaceholder":3066},[2978,6757,6758],{"class":2980,"line":4450},[2978,6759,4322],{"class":3073},[2978,6761,6762],{"class":2980,"line":4455},[2978,6763,5320],{"class":3073},[2978,6765,6766],{"class":2980,"line":4465},[2978,6767,4377],{"class":3073},[2978,6769,6770,6772,6774,6776,6778,6780],{"class":2980,"line":4470},[2978,6771,5445],{"class":3711},[2978,6773,6608],{"class":3000},[2978,6775,3135],{"class":2992},[2978,6777,3010],{"class":2984},[2978,6779,6659],{"class":2988},[2978,6781,5278],{"class":2992},[2978,6783,6784,6786,6789,6791],{"class":2980,"line":4491},[2978,6785,5283],{"class":3711},[2978,6787,6788],{"class":2992},"(authorRepository, ",[2978,6790,5377],{"class":3711},[2978,6792,3612],{"class":2992},[2978,6794,6795],{"class":2980,"line":4496},[2978,6796,5307],{"class":2992},[2978,6798,6799],{"class":2980,"line":4501},[2978,6800,3067],{"emptyLinePlaceholder":3066},[2978,6802,6803],{"class":2980,"line":4507},[2978,6804,5392],{"class":3073},[2978,6806,6807],{"class":2980,"line":4512},[2978,6808,6809],{"class":3073},"    // Асинхронні версії специфічних методів AuthorRepository\n",[2978,6811,6812],{"class":2980,"line":4518},[2978,6813,5392],{"class":3073},[2978,6815,6816],{"class":2980,"line":4524},[2978,6817,3067],{"emptyLinePlaceholder":3066},[2978,6819,6820],{"class":2980,"line":4529},[2978,6821,4322],{"class":3073},[2978,6823,6824],{"class":2980,"line":4542},[2978,6825,6826],{"class":3073},"     * Асинхронно знаходить авторів за частиною прізвища.\n",[2978,6828,6829],{"class":2980,"line":4552},[2978,6830,4332],{"class":3073},[2978,6832,6833],{"class":2980,"line":4557},[2978,6834,6835],{"class":3073},"     * Виконує {@code authorRepository.findByLastName()} у пулі потоків.\n",[2978,6837,6838],{"class":2980,"line":4580},[2978,6839,6840],{"class":3073},"     * Корисно для автодоповнення у пошуковому полі — не блокує UI-потік.\n",[2978,6842,6843],{"class":2980,"line":4585},[2978,6844,4347],{"class":3073},[2978,6846,6847,6849,6851,6854],{"class":2980,"line":4590},[2978,6848,4352],{"class":3073},[2978,6850,4266],{"class":3711},[2978,6852,6853],{"class":2988}," lastNamePart",[2978,6855,6856],{"class":3073}," підрядок прізвища (регістр-незалежний)\n",[2978,6858,6859,6861,6863],{"class":2980,"line":4596},[2978,6860,4352],{"class":3073},[2978,6862,4368],{"class":3711},[2978,6864,6865],{"class":3073}," CompletableFuture зі списком знайдених авторів\n",[2978,6867,6868],{"class":2980,"line":4601},[2978,6869,4377],{"class":3073},[2978,6871,6872,6874,6876,6878,6880,6882,6884,6886,6889,6891,6893,6895],{"class":2980,"line":4613},[2978,6873,5445],{"class":3711},[2978,6875,5448],{"class":2984},[2978,6877,3562],{"class":2992},[2978,6879,4477],{"class":2984},[2978,6881,3562],{"class":2992},[2978,6883,3120],{"class":2984},[2978,6885,4404],{"class":2992},[2978,6887,6888],{"class":3000},"findByLastNameAsync",[2978,6890,3135],{"class":2992},[2978,6892,3691],{"class":2984},[2978,6894,6853],{"class":2988},[2978,6896,5278],{"class":2992},[2978,6898,6899,6901,6903,6905,6907,6909,6911,6914],{"class":2980,"line":4623},[2978,6900,5473],{"class":2996},[2978,6902,5476],{"class":3000},[2978,6904,3708],{"class":2992},[2978,6906,3712],{"class":3711},[2978,6908,6659],{"class":2988},[2978,6910,3091],{"class":2992},[2978,6912,6913],{"class":3000},"findByLastName",[2978,6915,6916],{"class":2992},"(lastNamePart));\n",[2978,6918,6919],{"class":2980,"line":4628},[2978,6920,5307],{"class":2992},[2978,6922,6923],{"class":2980,"line":4650},[2978,6924,3067],{"emptyLinePlaceholder":3066},[2978,6926,6927],{"class":2980,"line":4655},[2978,6928,4322],{"class":3073},[2978,6930,6931],{"class":2980,"line":4660},[2978,6932,6933],{"class":3073},"     * Асинхронно знаходить автора за точним прізвищем та ім'ям.\n",[2978,6935,6936],{"class":2980,"line":4666},[2978,6937,4347],{"class":3073},[2978,6939,6940,6942,6944,6947],{"class":2980,"line":4671},[2978,6941,4352],{"class":3073},[2978,6943,4266],{"class":3711},[2978,6945,6946],{"class":2988}," lastName",[2978,6948,6949],{"class":3073},"  прізвище (точний збіг)\n",[2978,6951,6952,6954,6956,6959],{"class":2980,"line":4682},[2978,6953,4352],{"class":3073},[2978,6955,4266],{"class":3711},[2978,6957,6958],{"class":2988}," firstName",[2978,6960,6961],{"class":3073}," ім'я (точний збіг)\n",[2978,6963,6964,6966,6968],{"class":2980,"line":4692},[2978,6965,4352],{"class":3073},[2978,6967,4368],{"class":3711},[2978,6969,6970],{"class":3073}," CompletableFuture з Optional[Author]\n",[2978,6972,6973],{"class":2980,"line":4697},[2978,6974,4377],{"class":3073},[2978,6976,6977,6979,6981,6983,6985,6987,6989,6991,6993,6995,6997,6999,7002],{"class":2980,"line":4720},[2978,6978,5445],{"class":3711},[2978,6980,5448],{"class":2984},[2978,6982,3562],{"class":2992},[2978,6984,2972],{"class":2984},[2978,6986,3091],{"class":2992},[2978,6988,4392],{"class":2984},[2978,6990,3091],{"class":2992},[2978,6992,4397],{"class":2984},[2978,6994,3562],{"class":2992},[2978,6996,3120],{"class":2984},[2978,6998,4404],{"class":2992},[2978,7000,7001],{"class":3000},"findByFullNameAsync",[2978,7003,7004],{"class":2992},"(\n",[2978,7006,7007,7010,7012,7014,7016,7018],{"class":2980,"line":4725},[2978,7008,7009],{"class":2984},"            String",[2978,7011,6946],{"class":2988},[2978,7013,4307],{"class":2992},[2978,7015,3691],{"class":2984},[2978,7017,6958],{"class":2988},[2978,7019,5278],{"class":2992},[2978,7021,7022,7024,7026,7028,7030,7032,7034,7037],{"class":2980,"line":4730},[2978,7023,5473],{"class":2996},[2978,7025,5476],{"class":3000},[2978,7027,3708],{"class":2992},[2978,7029,3712],{"class":3711},[2978,7031,6659],{"class":2988},[2978,7033,3091],{"class":2992},[2978,7035,7036],{"class":3000},"findByFullName",[2978,7038,7039],{"class":2992},"(lastName, firstName));\n",[2978,7041,7042],{"class":2980,"line":4736},[2978,7043,5307],{"class":2992},[2978,7045,7046],{"class":2980,"line":4741},[2978,7047,4845],{"class":2992},[2964,7049,7050],{},[3246,7051,7052],{},"Аналогічно для інших сутностей:",[2968,7054,7056],{"className":2970,"code":7055,"language":2972,"meta":4161,"style":2973},"package com.example.audiobook.repository.async;\n\nimport com.example.audiobook.domain.Genre;\nimport com.example.audiobook.repository.GenreRepository;\n\nimport java.util.UUID;\nimport java.util.concurrent.CompletableFuture;\nimport java.util.concurrent.ExecutorService;\n\n/**\n * Асинхронна реалізація {@link GenreRepository}.\n */\npublic class AsyncGenreRepository extends AbstractAsyncRepository\u003CGenre, UUID> {\n\n    private final GenreRepository genreRepository;\n\n    public AsyncGenreRepository(GenreRepository genreRepository, ExecutorService executor) {\n        super(genreRepository, executor);\n        this.genreRepository = genreRepository;\n    }\n\n    public AsyncGenreRepository(GenreRepository genreRepository) {\n        this(genreRepository, null);\n    }\n\n    /**\n     * Асинхронно знаходить жанр за точною назвою.\n     */\n    public CompletableFuture\u003Cjava.util.Optional\u003CGenre>> findByNameAsync(String name) {\n        return runAsync(() -> genreRepository.findByName(name));\n    }\n}\n",[2975,7057,7058,7064,7068,7075,7082,7086,7092,7098,7104,7108,7112,7117,7121,7144,7148,7162,7166,7186,7193,7205,7209,7213,7227,7238,7242,7246,7250,7255,7259,7295,7315,7319],{"__ignoreMap":2973},[2978,7059,7060,7062],{"class":2980,"line":2981},[2978,7061,4168],{"class":3711},[2978,7063,4171],{"class":2992},[2978,7065,7066],{"class":2980,"line":3007},[2978,7067,3067],{"emptyLinePlaceholder":3066},[2978,7069,7070,7072],{"class":2980,"line":3026},[2978,7071,4180],{"class":3711},[2978,7073,7074],{"class":2992}," com.example.audiobook.domain.Genre;\n",[2978,7076,7077,7079],{"class":2980,"line":3045},[2978,7078,4180],{"class":3711},[2978,7080,7081],{"class":2992}," com.example.audiobook.repository.GenreRepository;\n",[2978,7083,7084],{"class":2980,"line":3063},[2978,7085,3067],{"emptyLinePlaceholder":3066},[2978,7087,7088,7090],{"class":2980,"line":3070},[2978,7089,4180],{"class":3711},[2978,7091,6520],{"class":2992},[2978,7093,7094,7096],{"class":2980,"line":3077},[2978,7095,4180],{"class":3711},[2978,7097,4190],{"class":2992},[2978,7099,7100,7102],{"class":2980,"line":3106},[2978,7101,4180],{"class":3711},[2978,7103,4952],{"class":2992},[2978,7105,7106],{"class":2980,"line":3111},[2978,7107,3067],{"emptyLinePlaceholder":3066},[2978,7109,7110],{"class":2980,"line":3117},[2978,7111,4199],{"class":3073},[2978,7113,7114],{"class":2980,"line":3157},[2978,7115,7116],{"class":3073}," * Асинхронна реалізація {@link GenreRepository}.\n",[2978,7118,7119],{"class":2980,"line":3194},[2978,7120,4289],{"class":3073},[2978,7122,7123,7125,7127,7130,7132,7134,7136,7138,7140,7142],{"class":2980,"line":3219},[2978,7124,4294],{"class":3711},[2978,7126,5086],{"class":3711},[2978,7128,7129],{"class":2984}," AsyncGenreRepository",[2978,7131,6611],{"class":3711},[2978,7133,5089],{"class":2984},[2978,7135,3562],{"class":2992},[2978,7137,3160],{"class":2984},[2978,7139,4307],{"class":2992},[2978,7141,6622],{"class":2984},[2978,7143,4313],{"class":2992},[2978,7145,7146],{"class":2980,"line":3224},[2978,7147,3067],{"emptyLinePlaceholder":3066},[2978,7149,7150,7152,7154,7157,7160],{"class":2980,"line":3336},[2978,7151,6651],{"class":3711},[2978,7153,5144],{"class":3711},[2978,7155,7156],{"class":2984}," GenreRepository",[2978,7158,7159],{"class":2988}," genreRepository",[2978,7161,3749],{"class":2992},[2978,7163,7164],{"class":2980,"line":3341},[2978,7165,3067],{"emptyLinePlaceholder":3066},[2978,7167,7168,7170,7172,7174,7176,7178,7180,7182,7184],{"class":2980,"line":3346},[2978,7169,5445],{"class":3711},[2978,7171,7129],{"class":3000},[2978,7173,3135],{"class":2992},[2978,7175,3029],{"class":2984},[2978,7177,7159],{"class":2988},[2978,7179,4307],{"class":2992},[2978,7181,4124],{"class":2984},[2978,7183,5196],{"class":2988},[2978,7185,5278],{"class":2992},[2978,7187,7188,7190],{"class":2980,"line":3352},[2978,7189,6732],{"class":3711},[2978,7191,7192],{"class":2992},"(genreRepository, executor);\n",[2978,7194,7195,7197,7199,7202],{"class":2980,"line":3358},[2978,7196,5283],{"class":3711},[2978,7198,3091],{"class":2992},[2978,7200,7201],{"class":2988},"genreRepository",[2978,7203,7204],{"class":2992}," = genreRepository;\n",[2978,7206,7207],{"class":2980,"line":3363},[2978,7208,5307],{"class":2992},[2978,7210,7211],{"class":2980,"line":3368},[2978,7212,3067],{"emptyLinePlaceholder":3066},[2978,7214,7215,7217,7219,7221,7223,7225],{"class":2980,"line":3373},[2978,7216,5445],{"class":3711},[2978,7218,7129],{"class":3000},[2978,7220,3135],{"class":2992},[2978,7222,3029],{"class":2984},[2978,7224,7159],{"class":2988},[2978,7226,5278],{"class":2992},[2978,7228,7229,7231,7234,7236],{"class":2980,"line":3379},[2978,7230,5283],{"class":3711},[2978,7232,7233],{"class":2992},"(genreRepository, ",[2978,7235,5377],{"class":3711},[2978,7237,3612],{"class":2992},[2978,7239,7240],{"class":2980,"line":3384},[2978,7241,5307],{"class":2992},[2978,7243,7244],{"class":2980,"line":3389},[2978,7245,3067],{"emptyLinePlaceholder":3066},[2978,7247,7248],{"class":2980,"line":3395},[2978,7249,4322],{"class":3073},[2978,7251,7252],{"class":2980,"line":3401},[2978,7253,7254],{"class":3073},"     * Асинхронно знаходить жанр за точною назвою.\n",[2978,7256,7257],{"class":2980,"line":3406},[2978,7258,4377],{"class":3073},[2978,7260,7261,7263,7265,7267,7269,7271,7273,7275,7277,7279,7281,7283,7286,7288,7290,7293],{"class":2980,"line":3411},[2978,7262,5445],{"class":3711},[2978,7264,5448],{"class":2984},[2978,7266,3562],{"class":2992},[2978,7268,2972],{"class":2984},[2978,7270,3091],{"class":2992},[2978,7272,4392],{"class":2984},[2978,7274,3091],{"class":2992},[2978,7276,4397],{"class":2984},[2978,7278,3562],{"class":2992},[2978,7280,3160],{"class":2984},[2978,7282,4404],{"class":2992},[2978,7284,7285],{"class":3000},"findByNameAsync",[2978,7287,3135],{"class":2992},[2978,7289,3691],{"class":2984},[2978,7291,7292],{"class":2988}," name",[2978,7294,5278],{"class":2992},[2978,7296,7297,7299,7301,7303,7305,7307,7309,7312],{"class":2980,"line":3416},[2978,7298,5473],{"class":2996},[2978,7300,5476],{"class":3000},[2978,7302,3708],{"class":2992},[2978,7304,3712],{"class":3711},[2978,7306,7159],{"class":2988},[2978,7308,3091],{"class":2992},[2978,7310,7311],{"class":3000},"findByName",[2978,7313,7314],{"class":2992},"(name));\n",[2978,7316,7317],{"class":2980,"line":4363},[2978,7318,5307],{"class":2992},[2978,7320,7321],{"class":2980,"line":4374},[2978,7322,4845],{"class":2992},[2968,7324,7326],{"className":2970,"code":7325,"language":2972,"meta":4161,"style":2973},"package com.example.audiobook.repository.async;\n\nimport com.example.audiobook.domain.Audiobook;\nimport com.example.audiobook.repository.AudiobookRepository;\n\nimport java.math.BigDecimal;\nimport java.util.List;\nimport java.util.UUID;\nimport java.util.concurrent.CompletableFuture;\nimport java.util.concurrent.ExecutorService;\n\n/**\n * Асинхронна реалізація {@link AudiobookRepository}.\n */\npublic class AsyncAudiobookRepository extends AbstractAsyncRepository\u003CAudiobook, UUID> {\n\n    private final AudiobookRepository audiobookRepository;\n\n    public AsyncAudiobookRepository(AudiobookRepository audiobookRepository,\n                                    ExecutorService executor) {\n        super(audiobookRepository, executor);\n        this.audiobookRepository = audiobookRepository;\n    }\n\n    public AsyncAudiobookRepository(AudiobookRepository audiobookRepository) {\n        this(audiobookRepository, null);\n    }\n\n    /**\n     * Асинхронно знаходить аудіокниги заданого автора.\n     */\n    public CompletableFuture\u003CList\u003CAudiobook>> findByAuthorIdAsync(UUID authorId) {\n        return runAsync(() -> audiobookRepository.findByAuthorId(authorId));\n    }\n\n    /**\n     * Асинхронно знаходить аудіокниги заданого жанру.\n     */\n    public CompletableFuture\u003CList\u003CAudiobook>> findByGenreNameAsync(String genreName) {\n        return runAsync(() -> audiobookRepository.findByGenreName(genreName));\n    }\n\n    /**\n     * Асинхронно знаходить аудіокниги з ціною не більше заданої.\n     */\n    public CompletableFuture\u003CList\u003CAudiobook>> findByMaxPriceAsync(BigDecimal maxPrice) {\n        return runAsync(() -> audiobookRepository.findByMaxPrice(maxPrice));\n    }\n}\n",[2975,7327,7328,7334,7338,7345,7352,7356,7363,7369,7375,7381,7387,7391,7395,7400,7404,7427,7431,7445,7449,7463,7472,7479,7491,7495,7499,7513,7524,7528,7532,7536,7541,7545,7573,7593,7597,7601,7605,7610,7614,7642,7662,7666,7670,7674,7679,7683,7712,7732,7736],{"__ignoreMap":2973},[2978,7329,7330,7332],{"class":2980,"line":2981},[2978,7331,4168],{"class":3711},[2978,7333,4171],{"class":2992},[2978,7335,7336],{"class":2980,"line":3007},[2978,7337,3067],{"emptyLinePlaceholder":3066},[2978,7339,7340,7342],{"class":2980,"line":3026},[2978,7341,4180],{"class":3711},[2978,7343,7344],{"class":2992}," com.example.audiobook.domain.Audiobook;\n",[2978,7346,7347,7349],{"class":2980,"line":3045},[2978,7348,4180],{"class":3711},[2978,7350,7351],{"class":2992}," com.example.audiobook.repository.AudiobookRepository;\n",[2978,7353,7354],{"class":2980,"line":3063},[2978,7355,3067],{"emptyLinePlaceholder":3066},[2978,7357,7358,7360],{"class":2980,"line":3070},[2978,7359,4180],{"class":3711},[2978,7361,7362],{"class":2992}," java.math.BigDecimal;\n",[2978,7364,7365,7367],{"class":2980,"line":3077},[2978,7366,4180],{"class":3711},[2978,7368,4183],{"class":2992},[2978,7370,7371,7373],{"class":2980,"line":3106},[2978,7372,4180],{"class":3711},[2978,7374,6520],{"class":2992},[2978,7376,7377,7379],{"class":2980,"line":3111},[2978,7378,4180],{"class":3711},[2978,7380,4190],{"class":2992},[2978,7382,7383,7385],{"class":2980,"line":3117},[2978,7384,4180],{"class":3711},[2978,7386,4952],{"class":2992},[2978,7388,7389],{"class":2980,"line":3157},[2978,7390,3067],{"emptyLinePlaceholder":3066},[2978,7392,7393],{"class":2980,"line":3194},[2978,7394,4199],{"class":3073},[2978,7396,7397],{"class":2980,"line":3219},[2978,7398,7399],{"class":3073}," * Асинхронна реалізація {@link AudiobookRepository}.\n",[2978,7401,7402],{"class":2980,"line":3224},[2978,7403,4289],{"class":3073},[2978,7405,7406,7408,7410,7413,7415,7417,7419,7421,7423,7425],{"class":2980,"line":3336},[2978,7407,4294],{"class":3711},[2978,7409,5086],{"class":3711},[2978,7411,7412],{"class":2984}," AsyncAudiobookRepository",[2978,7414,6611],{"class":3711},[2978,7416,5089],{"class":2984},[2978,7418,3562],{"class":2992},[2978,7420,3080],{"class":2984},[2978,7422,4307],{"class":2992},[2978,7424,6622],{"class":2984},[2978,7426,4313],{"class":2992},[2978,7428,7429],{"class":2980,"line":3341},[2978,7430,3067],{"emptyLinePlaceholder":3066},[2978,7432,7433,7435,7437,7440,7443],{"class":2980,"line":3346},[2978,7434,6651],{"class":3711},[2978,7436,5144],{"class":3711},[2978,7438,7439],{"class":2984}," AudiobookRepository",[2978,7441,7442],{"class":2988}," audiobookRepository",[2978,7444,3749],{"class":2992},[2978,7446,7447],{"class":2980,"line":3352},[2978,7448,3067],{"emptyLinePlaceholder":3066},[2978,7450,7451,7453,7455,7457,7459,7461],{"class":2980,"line":3358},[2978,7452,5445],{"class":3711},[2978,7454,7412],{"class":3000},[2978,7456,3135],{"class":2992},[2978,7458,2985],{"class":2984},[2978,7460,7442],{"class":2988},[2978,7462,5268],{"class":2992},[2978,7464,7465,7468,7470],{"class":2980,"line":3363},[2978,7466,7467],{"class":2984},"                                    ExecutorService",[2978,7469,5196],{"class":2988},[2978,7471,5278],{"class":2992},[2978,7473,7474,7476],{"class":2980,"line":3368},[2978,7475,6732],{"class":3711},[2978,7477,7478],{"class":2992},"(audiobookRepository, executor);\n",[2978,7480,7481,7483,7485,7488],{"class":2980,"line":3373},[2978,7482,5283],{"class":3711},[2978,7484,3091],{"class":2992},[2978,7486,7487],{"class":2988},"audiobookRepository",[2978,7489,7490],{"class":2992}," = audiobookRepository;\n",[2978,7492,7493],{"class":2980,"line":3379},[2978,7494,5307],{"class":2992},[2978,7496,7497],{"class":2980,"line":3384},[2978,7498,3067],{"emptyLinePlaceholder":3066},[2978,7500,7501,7503,7505,7507,7509,7511],{"class":2980,"line":3389},[2978,7502,5445],{"class":3711},[2978,7504,7412],{"class":3000},[2978,7506,3135],{"class":2992},[2978,7508,2985],{"class":2984},[2978,7510,7442],{"class":2988},[2978,7512,5278],{"class":2992},[2978,7514,7515,7517,7520,7522],{"class":2980,"line":3395},[2978,7516,5283],{"class":3711},[2978,7518,7519],{"class":2992},"(audiobookRepository, ",[2978,7521,5377],{"class":3711},[2978,7523,3612],{"class":2992},[2978,7525,7526],{"class":2980,"line":3401},[2978,7527,5307],{"class":2992},[2978,7529,7530],{"class":2980,"line":3406},[2978,7531,3067],{"emptyLinePlaceholder":3066},[2978,7533,7534],{"class":2980,"line":3411},[2978,7535,4322],{"class":3073},[2978,7537,7538],{"class":2980,"line":3416},[2978,7539,7540],{"class":3073},"     * Асинхронно знаходить аудіокниги заданого автора.\n",[2978,7542,7543],{"class":2980,"line":4363},[2978,7544,4377],{"class":3073},[2978,7546,7547,7549,7551,7553,7555,7557,7559,7561,7564,7566,7568,7571],{"class":2980,"line":4374},[2978,7548,5445],{"class":3711},[2978,7550,5448],{"class":2984},[2978,7552,3562],{"class":2992},[2978,7554,4477],{"class":2984},[2978,7556,3562],{"class":2992},[2978,7558,3080],{"class":2984},[2978,7560,4404],{"class":2992},[2978,7562,7563],{"class":3000},"findByAuthorIdAsync",[2978,7565,3135],{"class":2992},[2978,7567,6622],{"class":2984},[2978,7569,7570],{"class":2988}," authorId",[2978,7572,5278],{"class":2992},[2978,7574,7575,7577,7579,7581,7583,7585,7587,7590],{"class":2980,"line":4380},[2978,7576,5473],{"class":2996},[2978,7578,5476],{"class":3000},[2978,7580,3708],{"class":2992},[2978,7582,3712],{"class":3711},[2978,7584,7442],{"class":2988},[2978,7586,3091],{"class":2992},[2978,7588,7589],{"class":3000},"findByAuthorId",[2978,7591,7592],{"class":2992},"(authorId));\n",[2978,7594,7595],{"class":2980,"line":4417},[2978,7596,5307],{"class":2992},[2978,7598,7599],{"class":2980,"line":4422},[2978,7600,3067],{"emptyLinePlaceholder":3066},[2978,7602,7603],{"class":2980,"line":4427},[2978,7604,4322],{"class":3073},[2978,7606,7607],{"class":2980,"line":4433},[2978,7608,7609],{"class":3073},"     * Асинхронно знаходить аудіокниги заданого жанру.\n",[2978,7611,7612],{"class":2980,"line":4438},[2978,7613,4377],{"class":3073},[2978,7615,7616,7618,7620,7622,7624,7626,7628,7630,7633,7635,7637,7640],{"class":2980,"line":4444},[2978,7617,5445],{"class":3711},[2978,7619,5448],{"class":2984},[2978,7621,3562],{"class":2992},[2978,7623,4477],{"class":2984},[2978,7625,3562],{"class":2992},[2978,7627,3080],{"class":2984},[2978,7629,4404],{"class":2992},[2978,7631,7632],{"class":3000},"findByGenreNameAsync",[2978,7634,3135],{"class":2992},[2978,7636,3691],{"class":2984},[2978,7638,7639],{"class":2988}," genreName",[2978,7641,5278],{"class":2992},[2978,7643,7644,7646,7648,7650,7652,7654,7656,7659],{"class":2980,"line":4450},[2978,7645,5473],{"class":2996},[2978,7647,5476],{"class":3000},[2978,7649,3708],{"class":2992},[2978,7651,3712],{"class":3711},[2978,7653,7442],{"class":2988},[2978,7655,3091],{"class":2992},[2978,7657,7658],{"class":3000},"findByGenreName",[2978,7660,7661],{"class":2992},"(genreName));\n",[2978,7663,7664],{"class":2980,"line":4455},[2978,7665,5307],{"class":2992},[2978,7667,7668],{"class":2980,"line":4465},[2978,7669,3067],{"emptyLinePlaceholder":3066},[2978,7671,7672],{"class":2980,"line":4470},[2978,7673,4322],{"class":3073},[2978,7675,7676],{"class":2980,"line":4491},[2978,7677,7678],{"class":3073},"     * Асинхронно знаходить аудіокниги з ціною не більше заданої.\n",[2978,7680,7681],{"class":2980,"line":4496},[2978,7682,4377],{"class":3073},[2978,7684,7685,7687,7689,7691,7693,7695,7697,7699,7702,7704,7707,7710],{"class":2980,"line":4501},[2978,7686,5445],{"class":3711},[2978,7688,5448],{"class":2984},[2978,7690,3562],{"class":2992},[2978,7692,4477],{"class":2984},[2978,7694,3562],{"class":2992},[2978,7696,3080],{"class":2984},[2978,7698,4404],{"class":2992},[2978,7700,7701],{"class":3000},"findByMaxPriceAsync",[2978,7703,3135],{"class":2992},[2978,7705,7706],{"class":2984},"BigDecimal",[2978,7708,7709],{"class":2988}," maxPrice",[2978,7711,5278],{"class":2992},[2978,7713,7714,7716,7718,7720,7722,7724,7726,7729],{"class":2980,"line":4507},[2978,7715,5473],{"class":2996},[2978,7717,5476],{"class":3000},[2978,7719,3708],{"class":2992},[2978,7721,3712],{"class":3711},[2978,7723,7442],{"class":2988},[2978,7725,3091],{"class":2992},[2978,7727,7728],{"class":3000},"findByMaxPrice",[2978,7730,7731],{"class":2992},"(maxPrice));\n",[2978,7733,7734],{"class":2980,"line":4512},[2978,7735,5307],{"class":2992},[2978,7737,7738],{"class":2980,"line":4518},[2978,7739,4845],{"class":2992},[2964,7741,7742,7745,7746,7748],{},[3246,7743,7744],{},"Спостереження:"," Кожна конкретна реалізація містить лише 30–50 рядків коду. Вся складність асинхронності інкапсульована у ",[2975,7747,6473],{},". Додавання нової сутності вимагає лише створення класу-обгортки — жодної JDBC-логіки.",[3458,7750],{},[2959,7752,7754],{"id":7753},"демонстрація-паралельне-виконання-запитів","Демонстрація: Паралельне виконання запитів",[2964,7756,7757],{},"Тепер застосуємо асинхронні репозиторії до початкового сценарію — завантаження книги з автором, жанром та рейтингом:",[2968,7759,7761],{"className":2970,"code":7760,"language":2972,"meta":4161,"style":2973},"package com.example.audiobook;\n\nimport com.example.audiobook.db.ConnectionManager;\nimport com.example.audiobook.domain.Author;\nimport com.example.audiobook.domain.Audiobook;\nimport com.example.audiobook.domain.Genre;\nimport com.example.audiobook.repository.async.*;\nimport com.example.audiobook.repository.jdbc.*;\nimport com.example.audiobook.repository.strategy.SqlStrategyFactory;\n\nimport java.util.UUID;\nimport java.util.concurrent.CompletableFuture;\nimport java.util.concurrent.ExecutorService;\nimport java.util.concurrent.Executors;\n\npublic class AsyncDemo {\n\n    public static void main(String[] args) {\n        ConnectionManager cm = ConnectionManager.forH2(\"./data/audiobook_db\");\n        var factory = SqlStrategyFactory.forH2();\n\n        // Створюємо пул потоків: CPU_CORES × 2 для I/O-операцій\n        int poolSize = Runtime.getRuntime().availableProcessors() * 2;\n        ExecutorService executor = Executors.newFixedThreadPool(poolSize);\n\n        // Синхронні репозиторії\n        var syncAuthorRepo    = new JdbcAuthorRepository(cm, factory.authorStrategy());\n        var syncGenreRepo     = new JdbcGenreRepository(cm, factory.genreStrategy());\n        var syncAudiobookRepo = new JdbcAudiobookRepository(cm, factory.audiobookStrategy());\n\n        // Асинхронні обгортки\n        var asyncAuthorRepo    = new AsyncAuthorRepository(syncAuthorRepo, executor);\n        var asyncGenreRepo     = new AsyncGenreRepository(syncGenreRepo, executor);\n        var asyncAudiobookRepo = new AsyncAudiobookRepository(syncAudiobookRepo, executor);\n\n        try {\n            demonstrateSequentialVsParallel(\n                asyncAuthorRepo, asyncGenreRepo, asyncAudiobookRepo\n            );\n        } finally {\n            executor.shutdown();\n            cm.close();\n        }\n    }\n\n    /**\n     * Порівняння послідовного та паралельного виконання.\n     */\n    static void demonstrateSequentialVsParallel(\n            AsyncAuthorRepository authorRepo,\n            AsyncGenreRepository genreRepo,\n            AsyncAudiobookRepository audiobookRepo) {\n\n        UUID bookId   = UUID.fromString(\"...\"); // ID існуючої книги\n        UUID authorId = UUID.fromString(\"...\");\n        UUID genreId  = UUID.fromString(\"...\");\n\n        System.out.println(\"=== Послідовне виконання (синхронний стиль) ===\");\n        long startSeq = System.currentTimeMillis();\n\n        // Послідовні виклики — кожен чекає на попередній\n        Author author = authorRepo.findByIdAsync(authorId).join();  // 50ms\n        Genre  genre  = genreRepo.findByIdAsync(genreId).join();    // 30ms\n        Audiobook book = audiobookRepo.findByIdAsync(bookId).join(); // 40ms\n\n        long endSeq = System.currentTimeMillis();\n        System.out.println(\"Час виконання: \" + (endSeq - startSeq) + \"ms\");\n        System.out.println(\"Завантажено: \" + author.getFirstName() + \", \"\n                         + genre.getName() + \", \" + book.getTitle());\n\n        System.out.println(\"\\n=== Паралельне виконання ===\");\n        long startPar = System.currentTimeMillis();\n\n        // Запускаємо всі три запити ОДНОЧАСНО — не чекаємо на завершення\n        CompletableFuture\u003CAuthor>    futureAuthor = authorRepo.findByIdAsync(authorId)\n            .thenApply(opt -> opt.orElseThrow());\n        CompletableFuture\u003CGenre>     futureGenre  = genreRepo.findByIdAsync(genreId)\n            .thenApply(opt -> opt.orElseThrow());\n        CompletableFuture\u003CAudiobook> futureBook   = audiobookRepo.findByIdAsync(bookId)\n            .thenApply(opt -> opt.orElseThrow());\n\n        // Чекаємо завершення ВСІХ трьох запитів\n        CompletableFuture.allOf(futureAuthor, futureGenre, futureBook).join();\n\n        // Отримуємо результати (вони вже готові — join() не блокується)\n        Author authorPar = futureAuthor.join();\n        Genre  genrePar  = futureGenre.join();\n        Audiobook bookPar = futureBook.join();\n\n        long endPar = System.currentTimeMillis();\n        System.out.println(\"Час виконання: \" + (endPar - startPar) + \"ms\");\n        System.out.println(\"Завантажено: \" + authorPar.getFirstName() + \", \"\n                         + genrePar.getName() + \", \" + bookPar.getTitle());\n\n        System.out.println(\"\\n=== Прискорення ===\");\n        double speedup = (double)(endSeq - startSeq) / (endPar - startPar);\n        System.out.printf(\"Паралельне виконання у %.2f× швидше\\n\", speedup);\n    }\n}\n",[2975,7762,7763,7770,7774,7781,7787,7793,7799,7806,7813,7820,7824,7830,7836,7842,7848,7852,7863,7867,7891,7916,7935,7939,7944,7976,7996,8000,8005,8032,8057,8081,8085,8090,8106,8122,8138,8142,8149,8156,8161,8166,8175,8185,8197,8201,8205,8209,8213,8218,8222,8234,8244,8254,8264,8268,8296,8316,8337,8341,8361,8380,8384,8389,8413,8437,8462,8466,8483,8508,8540,8569,8573,8599,8616,8620,8625,8650,8672,8697,8715,8739,8757,8761,8766,8782,8786,8791,8808,8825,8842,8846,8863,8886,8915,8941,8945,8968,8985,9010,9014],{"__ignoreMap":2973},[2978,7764,7765,7767],{"class":2980,"line":2981},[2978,7766,4168],{"class":3711},[2978,7768,7769],{"class":2992}," com.example.audiobook;\n",[2978,7771,7772],{"class":2980,"line":3007},[2978,7773,3067],{"emptyLinePlaceholder":3066},[2978,7775,7776,7778],{"class":2980,"line":3026},[2978,7777,4180],{"class":3711},[2978,7779,7780],{"class":2992}," com.example.audiobook.db.ConnectionManager;\n",[2978,7782,7783,7785],{"class":2980,"line":3045},[2978,7784,4180],{"class":3711},[2978,7786,6496],{"class":2992},[2978,7788,7789,7791],{"class":2980,"line":3063},[2978,7790,4180],{"class":3711},[2978,7792,7344],{"class":2992},[2978,7794,7795,7797],{"class":2980,"line":3070},[2978,7796,4180],{"class":3711},[2978,7798,7074],{"class":2992},[2978,7800,7801,7803],{"class":2980,"line":3077},[2978,7802,4180],{"class":3711},[2978,7804,7805],{"class":2992}," com.example.audiobook.repository.async.*;\n",[2978,7807,7808,7810],{"class":2980,"line":3106},[2978,7809,4180],{"class":3711},[2978,7811,7812],{"class":2992}," com.example.audiobook.repository.jdbc.*;\n",[2978,7814,7815,7817],{"class":2980,"line":3111},[2978,7816,4180],{"class":3711},[2978,7818,7819],{"class":2992}," com.example.audiobook.repository.strategy.SqlStrategyFactory;\n",[2978,7821,7822],{"class":2980,"line":3117},[2978,7823,3067],{"emptyLinePlaceholder":3066},[2978,7825,7826,7828],{"class":2980,"line":3157},[2978,7827,4180],{"class":3711},[2978,7829,6520],{"class":2992},[2978,7831,7832,7834],{"class":2980,"line":3194},[2978,7833,4180],{"class":3711},[2978,7835,4190],{"class":2992},[2978,7837,7838,7840],{"class":2980,"line":3219},[2978,7839,4180],{"class":3711},[2978,7841,4952],{"class":2992},[2978,7843,7844,7846],{"class":2980,"line":3224},[2978,7845,4180],{"class":3711},[2978,7847,4959],{"class":2992},[2978,7849,7850],{"class":2980,"line":3336},[2978,7851,3067],{"emptyLinePlaceholder":3066},[2978,7853,7854,7856,7858,7861],{"class":2980,"line":3341},[2978,7855,4294],{"class":3711},[2978,7857,5086],{"class":3711},[2978,7859,7860],{"class":2984}," AsyncDemo",[2978,7862,3715],{"class":2992},[2978,7864,7865],{"class":2980,"line":3346},[2978,7866,3067],{"emptyLinePlaceholder":3066},[2978,7868,7869,7871,7874,7876,7879,7881,7883,7886,7889],{"class":2980,"line":3352},[2978,7870,5445],{"class":3711},[2978,7872,7873],{"class":3711}," static",[2978,7875,6304],{"class":2984},[2978,7877,7878],{"class":3000}," main",[2978,7880,3135],{"class":2992},[2978,7882,3691],{"class":2984},[2978,7884,7885],{"class":2992},"[] ",[2978,7887,7888],{"class":2988},"args",[2978,7890,5278],{"class":2992},[2978,7892,7893,7896,7899,7901,7904,7906,7909,7911,7914],{"class":2980,"line":3358},[2978,7894,7895],{"class":2984},"        ConnectionManager",[2978,7897,7898],{"class":2988}," cm",[2978,7900,3016],{"class":2992},[2978,7902,7903],{"class":2988},"ConnectionManager",[2978,7905,3091],{"class":2992},[2978,7907,7908],{"class":3000},"forH2",[2978,7910,3135],{"class":2992},[2978,7912,7913],{"class":3608},"\"./data/audiobook_db\"",[2978,7915,3612],{"class":2992},[2978,7917,7918,7921,7924,7926,7929,7931,7933],{"class":2980,"line":3363},[2978,7919,7920],{"class":3711},"        var",[2978,7922,7923],{"class":2988}," factory",[2978,7925,3016],{"class":2992},[2978,7927,7928],{"class":2988},"SqlStrategyFactory",[2978,7930,3091],{"class":2992},[2978,7932,7908],{"class":3000},[2978,7934,3103],{"class":2992},[2978,7936,7937],{"class":2980,"line":3368},[2978,7938,3067],{"emptyLinePlaceholder":3066},[2978,7940,7941],{"class":2980,"line":3373},[2978,7942,7943],{"class":3073},"        // Створюємо пул потоків: CPU_CORES × 2 для I/O-операцій\n",[2978,7945,7946,7949,7952,7954,7957,7959,7962,7965,7968,7971,7974],{"class":2980,"line":3379},[2978,7947,7948],{"class":2984},"        int",[2978,7950,7951],{"class":2988}," poolSize",[2978,7953,3016],{"class":2992},[2978,7955,7956],{"class":2988},"Runtime",[2978,7958,3091],{"class":2992},[2978,7960,7961],{"class":3000},"getRuntime",[2978,7963,7964],{"class":2992},"().",[2978,7966,7967],{"class":3000},"availableProcessors",[2978,7969,7970],{"class":2992},"() * ",[2978,7972,7973],{"class":3735},"2",[2978,7975,3749],{"class":2992},[2978,7977,7978,7981,7983,7985,7988,7990,7993],{"class":2980,"line":3384},[2978,7979,7980],{"class":2984},"        ExecutorService",[2978,7982,5196],{"class":2988},[2978,7984,3016],{"class":2992},[2978,7986,7987],{"class":2988},"Executors",[2978,7989,3091],{"class":2992},[2978,7991,7992],{"class":3000},"newFixedThreadPool",[2978,7994,7995],{"class":2992},"(poolSize);\n",[2978,7997,7998],{"class":2980,"line":3389},[2978,7999,3067],{"emptyLinePlaceholder":3066},[2978,8001,8002],{"class":2980,"line":3395},[2978,8003,8004],{"class":3073},"        // Синхронні репозиторії\n",[2978,8006,8007,8009,8012,8015,8017,8019,8022,8025,8027,8030],{"class":2980,"line":3401},[2978,8008,7920],{"class":3711},[2978,8010,8011],{"class":2988}," syncAuthorRepo",[2978,8013,8014],{"class":2992},"    = ",[2978,8016,2997],{"class":2996},[2978,8018,3021],{"class":3000},[2978,8020,8021],{"class":2992},"(cm, ",[2978,8023,8024],{"class":2988},"factory",[2978,8026,3091],{"class":2992},[2978,8028,8029],{"class":3000},"authorStrategy",[2978,8031,3538],{"class":2992},[2978,8033,8034,8036,8039,8042,8044,8046,8048,8050,8052,8055],{"class":2980,"line":3406},[2978,8035,7920],{"class":3711},[2978,8037,8038],{"class":2988}," syncGenreRepo",[2978,8040,8041],{"class":2992},"     = ",[2978,8043,2997],{"class":2996},[2978,8045,3040],{"class":3000},[2978,8047,8021],{"class":2992},[2978,8049,8024],{"class":2988},[2978,8051,3091],{"class":2992},[2978,8053,8054],{"class":3000},"genreStrategy",[2978,8056,3538],{"class":2992},[2978,8058,8059,8061,8064,8066,8068,8070,8072,8074,8076,8079],{"class":2980,"line":3411},[2978,8060,7920],{"class":3711},[2978,8062,8063],{"class":2988}," syncAudiobookRepo",[2978,8065,3016],{"class":2992},[2978,8067,2997],{"class":2996},[2978,8069,3001],{"class":3000},[2978,8071,8021],{"class":2992},[2978,8073,8024],{"class":2988},[2978,8075,3091],{"class":2992},[2978,8077,8078],{"class":3000},"audiobookStrategy",[2978,8080,3538],{"class":2992},[2978,8082,8083],{"class":2980,"line":3416},[2978,8084,3067],{"emptyLinePlaceholder":3066},[2978,8086,8087],{"class":2980,"line":4363},[2978,8088,8089],{"class":3073},"        // Асинхронні обгортки\n",[2978,8091,8092,8094,8097,8099,8101,8103],{"class":2980,"line":4374},[2978,8093,7920],{"class":3711},[2978,8095,8096],{"class":2988}," asyncAuthorRepo",[2978,8098,8014],{"class":2992},[2978,8100,2997],{"class":2996},[2978,8102,6608],{"class":3000},[2978,8104,8105],{"class":2992},"(syncAuthorRepo, executor);\n",[2978,8107,8108,8110,8113,8115,8117,8119],{"class":2980,"line":4380},[2978,8109,7920],{"class":3711},[2978,8111,8112],{"class":2988}," asyncGenreRepo",[2978,8114,8041],{"class":2992},[2978,8116,2997],{"class":2996},[2978,8118,7129],{"class":3000},[2978,8120,8121],{"class":2992},"(syncGenreRepo, executor);\n",[2978,8123,8124,8126,8129,8131,8133,8135],{"class":2980,"line":4417},[2978,8125,7920],{"class":3711},[2978,8127,8128],{"class":2988}," asyncAudiobookRepo",[2978,8130,3016],{"class":2992},[2978,8132,2997],{"class":2996},[2978,8134,7412],{"class":3000},[2978,8136,8137],{"class":2992},"(syncAudiobookRepo, executor);\n",[2978,8139,8140],{"class":2980,"line":4422},[2978,8141,3067],{"emptyLinePlaceholder":3066},[2978,8143,8144,8147],{"class":2980,"line":4427},[2978,8145,8146],{"class":2996},"        try",[2978,8148,3715],{"class":2992},[2978,8150,8151,8154],{"class":2980,"line":4433},[2978,8152,8153],{"class":3000},"            demonstrateSequentialVsParallel",[2978,8155,7004],{"class":2992},[2978,8157,8158],{"class":2980,"line":4438},[2978,8159,8160],{"class":2992},"                asyncAuthorRepo, asyncGenreRepo, asyncAudiobookRepo\n",[2978,8162,8163],{"class":2980,"line":4444},[2978,8164,8165],{"class":2992},"            );\n",[2978,8167,8168,8170,8173],{"class":2980,"line":4450},[2978,8169,6211],{"class":2992},[2978,8171,8172],{"class":2996},"finally",[2978,8174,3715],{"class":2992},[2978,8176,8177,8179,8181,8183],{"class":2980,"line":4455},[2978,8178,6326],{"class":2988},[2978,8180,3091],{"class":2992},[2978,8182,6331],{"class":3000},[2978,8184,3103],{"class":2992},[2978,8186,8187,8190,8192,8195],{"class":2980,"line":4465},[2978,8188,8189],{"class":2988},"            cm",[2978,8191,3091],{"class":2992},[2978,8193,8194],{"class":3000},"close",[2978,8196,3103],{"class":2992},[2978,8198,8199],{"class":2980,"line":4470},[2978,8200,6236],{"class":2992},[2978,8202,8203],{"class":2980,"line":4491},[2978,8204,5307],{"class":2992},[2978,8206,8207],{"class":2980,"line":4496},[2978,8208,3067],{"emptyLinePlaceholder":3066},[2978,8210,8211],{"class":2980,"line":4501},[2978,8212,4322],{"class":3073},[2978,8214,8215],{"class":2980,"line":4507},[2978,8216,8217],{"class":3073},"     * Порівняння послідовного та паралельного виконання.\n",[2978,8219,8220],{"class":2980,"line":4512},[2978,8221,4377],{"class":3073},[2978,8223,8224,8227,8229,8232],{"class":2980,"line":4518},[2978,8225,8226],{"class":3711},"    static",[2978,8228,6304],{"class":2984},[2978,8230,8231],{"class":3000}," demonstrateSequentialVsParallel",[2978,8233,7004],{"class":2992},[2978,8235,8236,8239,8242],{"class":2980,"line":4524},[2978,8237,8238],{"class":2984},"            AsyncAuthorRepository",[2978,8240,8241],{"class":2988}," authorRepo",[2978,8243,5268],{"class":2992},[2978,8245,8246,8249,8252],{"class":2980,"line":4529},[2978,8247,8248],{"class":2984},"            AsyncGenreRepository",[2978,8250,8251],{"class":2988}," genreRepo",[2978,8253,5268],{"class":2992},[2978,8255,8256,8259,8262],{"class":2980,"line":4542},[2978,8257,8258],{"class":2984},"            AsyncAudiobookRepository",[2978,8260,8261],{"class":2988}," audiobookRepo",[2978,8263,5278],{"class":2992},[2978,8265,8266],{"class":2980,"line":4552},[2978,8267,3067],{"emptyLinePlaceholder":3066},[2978,8269,8270,8273,8276,8278,8280,8282,8285,8287,8290,8293],{"class":2980,"line":4557},[2978,8271,8272],{"class":2984},"        UUID",[2978,8274,8275],{"class":2988}," bookId",[2978,8277,2993],{"class":2992},[2978,8279,6622],{"class":2988},[2978,8281,3091],{"class":2992},[2978,8283,8284],{"class":3000},"fromString",[2978,8286,3135],{"class":2992},[2978,8288,8289],{"class":3608},"\"...\"",[2978,8291,8292],{"class":2992},"); ",[2978,8294,8295],{"class":3073},"// ID існуючої книги\n",[2978,8297,8298,8300,8302,8304,8306,8308,8310,8312,8314],{"class":2980,"line":4580},[2978,8299,8272],{"class":2984},[2978,8301,7570],{"class":2988},[2978,8303,3016],{"class":2992},[2978,8305,6622],{"class":2988},[2978,8307,3091],{"class":2992},[2978,8309,8284],{"class":3000},[2978,8311,3135],{"class":2992},[2978,8313,8289],{"class":3608},[2978,8315,3612],{"class":2992},[2978,8317,8318,8320,8323,8325,8327,8329,8331,8333,8335],{"class":2980,"line":4585},[2978,8319,8272],{"class":2984},[2978,8321,8322],{"class":2988}," genreId",[2978,8324,3035],{"class":2992},[2978,8326,6622],{"class":2988},[2978,8328,3091],{"class":2992},[2978,8330,8284],{"class":3000},[2978,8332,3135],{"class":2992},[2978,8334,8289],{"class":3608},[2978,8336,3612],{"class":2992},[2978,8338,8339],{"class":2980,"line":4590},[2978,8340,3067],{"emptyLinePlaceholder":3066},[2978,8342,8343,8346,8348,8350,8352,8354,8356,8359],{"class":2980,"line":4596},[2978,8344,8345],{"class":2988},"        System",[2978,8347,3091],{"class":2992},[2978,8349,3520],{"class":2988},[2978,8351,3091],{"class":2992},[2978,8353,3525],{"class":3000},[2978,8355,3135],{"class":2992},[2978,8357,8358],{"class":3608},"\"=== Послідовне виконання (синхронний стиль) ===\"",[2978,8360,3612],{"class":2992},[2978,8362,8363,8366,8369,8371,8373,8375,8378],{"class":2980,"line":4601},[2978,8364,8365],{"class":2984},"        long",[2978,8367,8368],{"class":2988}," startSeq",[2978,8370,3016],{"class":2992},[2978,8372,3515],{"class":2988},[2978,8374,3091],{"class":2992},[2978,8376,8377],{"class":3000},"currentTimeMillis",[2978,8379,3103],{"class":2992},[2978,8381,8382],{"class":2980,"line":4613},[2978,8383,3067],{"emptyLinePlaceholder":3066},[2978,8385,8386],{"class":2980,"line":4623},[2978,8387,8388],{"class":3073},"        // Послідовні виклики — кожен чекає на попередній\n",[2978,8390,8391,8394,8396,8398,8400,8402,8404,8407,8409,8411],{"class":2980,"line":4628},[2978,8392,8393],{"class":2984},"        Author",[2978,8395,3123],{"class":2988},[2978,8397,3016],{"class":2992},[2978,8399,3128],{"class":2988},[2978,8401,3091],{"class":2992},[2978,8403,3579],{"class":3000},[2978,8405,8406],{"class":2992},"(authorId).",[2978,8408,3636],{"class":3000},[2978,8410,3151],{"class":2992},[2978,8412,3154],{"class":3073},[2978,8414,8415,8418,8420,8422,8424,8426,8428,8431,8433,8435],{"class":2980,"line":4650},[2978,8416,8417],{"class":2984},"        Genre",[2978,8419,3163],{"class":2988},[2978,8421,3035],{"class":2992},[2978,8423,3168],{"class":2988},[2978,8425,3091],{"class":2992},[2978,8427,3579],{"class":3000},[2978,8429,8430],{"class":2992},"(genreId).",[2978,8432,3636],{"class":3000},[2978,8434,3188],{"class":2992},[2978,8436,3191],{"class":3073},[2978,8438,8439,8442,8444,8446,8449,8451,8453,8455,8457,8459],{"class":2980,"line":4655},[2978,8440,8441],{"class":2984},"        Audiobook",[2978,8443,3083],{"class":2988},[2978,8445,3016],{"class":2992},[2978,8447,8448],{"class":2988},"audiobookRepo",[2978,8450,3091],{"class":2992},[2978,8452,3579],{"class":3000},[2978,8454,3097],{"class":2992},[2978,8456,3636],{"class":3000},[2978,8458,3639],{"class":2992},[2978,8460,8461],{"class":3073},"// 40ms\n",[2978,8463,8464],{"class":2980,"line":4660},[2978,8465,3067],{"emptyLinePlaceholder":3066},[2978,8467,8468,8470,8473,8475,8477,8479,8481],{"class":2980,"line":4666},[2978,8469,8365],{"class":2984},[2978,8471,8472],{"class":2988}," endSeq",[2978,8474,3016],{"class":2992},[2978,8476,3515],{"class":2988},[2978,8478,3091],{"class":2992},[2978,8480,8377],{"class":3000},[2978,8482,3103],{"class":2992},[2978,8484,8485,8487,8489,8491,8493,8495,8497,8500,8503,8506],{"class":2980,"line":4671},[2978,8486,8345],{"class":2988},[2978,8488,3091],{"class":2992},[2978,8490,3520],{"class":2988},[2978,8492,3091],{"class":2992},[2978,8494,3525],{"class":3000},[2978,8496,3135],{"class":2992},[2978,8498,8499],{"class":3608},"\"Час виконання: \"",[2978,8501,8502],{"class":2992}," + (endSeq - startSeq) + ",[2978,8504,8505],{"class":3608},"\"ms\"",[2978,8507,3612],{"class":2992},[2978,8509,8510,8512,8514,8516,8518,8520,8522,8525,8528,8530,8532,8534,8537],{"class":2980,"line":4682},[2978,8511,8345],{"class":2988},[2978,8513,3091],{"class":2992},[2978,8515,3520],{"class":2988},[2978,8517,3091],{"class":2992},[2978,8519,3525],{"class":3000},[2978,8521,3135],{"class":2992},[2978,8523,8524],{"class":3608},"\"Завантажено: \"",[2978,8526,8527],{"class":2992}," + ",[2978,8529,3530],{"class":2988},[2978,8531,3091],{"class":2992},[2978,8533,3535],{"class":3000},[2978,8535,8536],{"class":2992},"() + ",[2978,8538,8539],{"class":3608},"\", \"\n",[2978,8541,8542,8545,8548,8550,8553,8555,8558,8560,8562,8564,8567],{"class":2980,"line":4692},[2978,8543,8544],{"class":2992},"                         + ",[2978,8546,8547],{"class":2988},"genre",[2978,8549,3091],{"class":2992},[2978,8551,8552],{"class":3000},"getName",[2978,8554,8536],{"class":2992},[2978,8556,8557],{"class":3608},"\", \"",[2978,8559,8527],{"class":2992},[2978,8561,3138],{"class":2988},[2978,8563,3091],{"class":2992},[2978,8565,8566],{"class":3000},"getTitle",[2978,8568,3538],{"class":2992},[2978,8570,8571],{"class":2980,"line":4697},[2978,8572,3067],{"emptyLinePlaceholder":3066},[2978,8574,8575,8577,8579,8581,8583,8585,8587,8590,8594,8597],{"class":2980,"line":4720},[2978,8576,8345],{"class":2988},[2978,8578,3091],{"class":2992},[2978,8580,3520],{"class":2988},[2978,8582,3091],{"class":2992},[2978,8584,3525],{"class":3000},[2978,8586,3135],{"class":2992},[2978,8588,8589],{"class":3608},"\"",[2978,8591,8593],{"class":8592},"sjcCO","\\n",[2978,8595,8596],{"class":3608},"=== Паралельне виконання ===\"",[2978,8598,3612],{"class":2992},[2978,8600,8601,8603,8606,8608,8610,8612,8614],{"class":2980,"line":4725},[2978,8602,8365],{"class":2984},[2978,8604,8605],{"class":2988}," startPar",[2978,8607,3016],{"class":2992},[2978,8609,3515],{"class":2988},[2978,8611,3091],{"class":2992},[2978,8613,8377],{"class":3000},[2978,8615,3103],{"class":2992},[2978,8617,8618],{"class":2980,"line":4730},[2978,8619,3067],{"emptyLinePlaceholder":3066},[2978,8621,8622],{"class":2980,"line":4736},[2978,8623,8624],{"class":3073},"        // Запускаємо всі три запити ОДНОЧАСНО — не чекаємо на завершення\n",[2978,8626,8627,8630,8632,8634,8637,8639,8641,8643,8645,8647],{"class":2980,"line":4741},[2978,8628,8629],{"class":2984},"        CompletableFuture",[2978,8631,3562],{"class":2992},[2978,8633,3120],{"class":2984},[2978,8635,8636],{"class":2992},">    ",[2978,8638,3570],{"class":2988},[2978,8640,3016],{"class":2992},[2978,8642,3128],{"class":2988},[2978,8644,3091],{"class":2992},[2978,8646,3579],{"class":3000},[2978,8648,8649],{"class":2992},"(authorId)\n",[2978,8651,8652,8655,8658,8661,8663,8666,8668,8670],{"class":2980,"line":4751},[2978,8653,8654],{"class":2992},"            .",[2978,8656,8657],{"class":3000},"thenApply",[2978,8659,8660],{"class":2992},"(opt ",[2978,8662,3712],{"class":3711},[2978,8664,8665],{"class":2988}," opt",[2978,8667,3091],{"class":2992},[2978,8669,3100],{"class":3000},[2978,8671,3538],{"class":2992},[2978,8673,8674,8676,8678,8680,8683,8686,8688,8690,8692,8694],{"class":2980,"line":4756},[2978,8675,8629],{"class":2984},[2978,8677,3562],{"class":2992},[2978,8679,3160],{"class":2984},[2978,8681,8682],{"class":2992},">     ",[2978,8684,8685],{"class":2988},"futureGenre",[2978,8687,3035],{"class":2992},[2978,8689,3168],{"class":2988},[2978,8691,3091],{"class":2992},[2978,8693,3579],{"class":3000},[2978,8695,8696],{"class":2992},"(genreId)\n",[2978,8698,8699,8701,8703,8705,8707,8709,8711,8713],{"class":2980,"line":4773},[2978,8700,8654],{"class":2992},[2978,8702,8657],{"class":3000},[2978,8704,8660],{"class":2992},[2978,8706,3712],{"class":3711},[2978,8708,8665],{"class":2988},[2978,8710,3091],{"class":2992},[2978,8712,3100],{"class":3000},[2978,8714,3538],{"class":2992},[2978,8716,8717,8719,8721,8723,8725,8728,8730,8732,8734,8736],{"class":2980,"line":4778},[2978,8718,8629],{"class":2984},[2978,8720,3562],{"class":2992},[2978,8722,3080],{"class":2984},[2978,8724,3567],{"class":2992},[2978,8726,8727],{"class":2988},"futureBook",[2978,8729,2993],{"class":2992},[2978,8731,8448],{"class":2988},[2978,8733,3091],{"class":2992},[2978,8735,3579],{"class":3000},[2978,8737,8738],{"class":2992},"(bookId)\n",[2978,8740,8741,8743,8745,8747,8749,8751,8753,8755],{"class":2980,"line":4783},[2978,8742,8654],{"class":2992},[2978,8744,8657],{"class":3000},[2978,8746,8660],{"class":2992},[2978,8748,3712],{"class":3711},[2978,8750,8665],{"class":2988},[2978,8752,3091],{"class":2992},[2978,8754,3100],{"class":3000},[2978,8756,3538],{"class":2992},[2978,8758,8759],{"class":2980,"line":4789},[2978,8760,3067],{"emptyLinePlaceholder":3066},[2978,8762,8763],{"class":2980,"line":4794},[2978,8764,8765],{"class":3073},"        // Чекаємо завершення ВСІХ трьох запитів\n",[2978,8767,8768,8770,8772,8775,8778,8780],{"class":2980,"line":4805},[2978,8769,8629],{"class":2988},[2978,8771,3091],{"class":2992},[2978,8773,8774],{"class":3000},"allOf",[2978,8776,8777],{"class":2992},"(futureAuthor, futureGenre, futureBook).",[2978,8779,3636],{"class":3000},[2978,8781,3103],{"class":2992},[2978,8783,8784],{"class":2980,"line":4815},[2978,8785,3067],{"emptyLinePlaceholder":3066},[2978,8787,8788],{"class":2980,"line":4820},[2978,8789,8790],{"class":3073},"        // Отримуємо результати (вони вже готові — join() не блокується)\n",[2978,8792,8793,8795,8798,8800,8802,8804,8806],{"class":2980,"line":4842},[2978,8794,8393],{"class":2984},[2978,8796,8797],{"class":2988}," authorPar",[2978,8799,3016],{"class":2992},[2978,8801,3570],{"class":2988},[2978,8803,3091],{"class":2992},[2978,8805,3636],{"class":3000},[2978,8807,3103],{"class":2992},[2978,8809,8810,8812,8815,8817,8819,8821,8823],{"class":2980,"line":5512},[2978,8811,8417],{"class":2984},[2978,8813,8814],{"class":2988},"  genrePar",[2978,8816,3035],{"class":2992},[2978,8818,8685],{"class":2988},[2978,8820,3091],{"class":2992},[2978,8822,3636],{"class":3000},[2978,8824,3103],{"class":2992},[2978,8826,8827,8829,8832,8834,8836,8838,8840],{"class":2980,"line":5518},[2978,8828,8441],{"class":2984},[2978,8830,8831],{"class":2988}," bookPar",[2978,8833,3016],{"class":2992},[2978,8835,8727],{"class":2988},[2978,8837,3091],{"class":2992},[2978,8839,3636],{"class":3000},[2978,8841,3103],{"class":2992},[2978,8843,8844],{"class":2980,"line":5524},[2978,8845,3067],{"emptyLinePlaceholder":3066},[2978,8847,8848,8850,8853,8855,8857,8859,8861],{"class":2980,"line":5530},[2978,8849,8365],{"class":2984},[2978,8851,8852],{"class":2988}," endPar",[2978,8854,3016],{"class":2992},[2978,8856,3515],{"class":2988},[2978,8858,3091],{"class":2992},[2978,8860,8377],{"class":3000},[2978,8862,3103],{"class":2992},[2978,8864,8865,8867,8869,8871,8873,8875,8877,8879,8882,8884],{"class":2980,"line":5535},[2978,8866,8345],{"class":2988},[2978,8868,3091],{"class":2992},[2978,8870,3520],{"class":2988},[2978,8872,3091],{"class":2992},[2978,8874,3525],{"class":3000},[2978,8876,3135],{"class":2992},[2978,8878,8499],{"class":3608},[2978,8880,8881],{"class":2992}," + (endPar - startPar) + ",[2978,8883,8505],{"class":3608},[2978,8885,3612],{"class":2992},[2978,8887,8888,8890,8892,8894,8896,8898,8900,8902,8904,8907,8909,8911,8913],{"class":2980,"line":5542},[2978,8889,8345],{"class":2988},[2978,8891,3091],{"class":2992},[2978,8893,3520],{"class":2988},[2978,8895,3091],{"class":2992},[2978,8897,3525],{"class":3000},[2978,8899,3135],{"class":2992},[2978,8901,8524],{"class":3608},[2978,8903,8527],{"class":2992},[2978,8905,8906],{"class":2988},"authorPar",[2978,8908,3091],{"class":2992},[2978,8910,3535],{"class":3000},[2978,8912,8536],{"class":2992},[2978,8914,8539],{"class":3608},[2978,8916,8917,8919,8922,8924,8926,8928,8930,8932,8935,8937,8939],{"class":2980,"line":5564},[2978,8918,8544],{"class":2992},[2978,8920,8921],{"class":2988},"genrePar",[2978,8923,3091],{"class":2992},[2978,8925,8552],{"class":3000},[2978,8927,8536],{"class":2992},[2978,8929,8557],{"class":3608},[2978,8931,8527],{"class":2992},[2978,8933,8934],{"class":2988},"bookPar",[2978,8936,3091],{"class":2992},[2978,8938,8566],{"class":3000},[2978,8940,3538],{"class":2992},[2978,8942,8943],{"class":2980,"line":5584},[2978,8944,3067],{"emptyLinePlaceholder":3066},[2978,8946,8947,8949,8951,8953,8955,8957,8959,8961,8963,8966],{"class":2980,"line":5589},[2978,8948,8345],{"class":2988},[2978,8950,3091],{"class":2992},[2978,8952,3520],{"class":2988},[2978,8954,3091],{"class":2992},[2978,8956,3525],{"class":3000},[2978,8958,3135],{"class":2992},[2978,8960,8589],{"class":3608},[2978,8962,8593],{"class":8592},[2978,8964,8965],{"class":3608},"=== Прискорення ===\"",[2978,8967,3612],{"class":2992},[2978,8969,8970,8973,8976,8979,8982],{"class":2980,"line":5594},[2978,8971,8972],{"class":2984},"        double",[2978,8974,8975],{"class":2988}," speedup",[2978,8977,8978],{"class":2992}," = (",[2978,8980,8981],{"class":2984},"double",[2978,8983,8984],{"class":2992},")(endSeq - startSeq) / (endPar - startPar);\n",[2978,8986,8987,8989,8991,8993,8995,8998,9000,9003,9005,9007],{"class":2980,"line":5599},[2978,8988,8345],{"class":2988},[2978,8990,3091],{"class":2992},[2978,8992,3520],{"class":2988},[2978,8994,3091],{"class":2992},[2978,8996,8997],{"class":3000},"printf",[2978,8999,3135],{"class":2992},[2978,9001,9002],{"class":3608},"\"Паралельне виконання у %.2f× швидше",[2978,9004,8593],{"class":8592},[2978,9006,8589],{"class":3608},[2978,9008,9009],{"class":2992},", speedup);\n",[2978,9011,9012],{"class":2980,"line":5604},[2978,9013,5307],{"class":2992},[2978,9015,9016],{"class":2980,"line":5609},[2978,9017,4845],{"class":2992},[9019,9020,9023,9036,9046,9049,9056,9070,9081,9092,9101,9105,9108,9115,9126,9136,9146,9158,9168,9178,9185,9188,9191,9198,9207],"terminal-preview",{":cursor":9021,"title":9022},"false","java AsyncDemo",[9024,9025,9027,9032,9033],"div",{"className":9026},[2980],[2978,9028,9031],{"className":9029},[9030],"opacity-40","$"," ",[3246,9034,9035],{},"java -cp . com.example.audiobook.AsyncDemo",[9024,9037,9039,9045],{"className":9038},[2980],[2978,9040,9044],{"className":9041},[9042,9043],"text-blue-400","font-bold","[Pool]"," Ініціалізовано: 8 потоків (4 CPU × 2)",[9024,9047],{"className":9048},[2980],[9024,9050,9052],{"className":9051},[2980],[2978,9053,9055],{"className":9054},[9043],"=== Послідовне виконання (синхронний стиль) ===",[9024,9057,9059,9064,9065],{"className":9058},[2980],[2978,9060,9063],{"className":9061},[9062],"text-yellow-400","[SQL]"," Thread-1: SELECT * FROM authors WHERE id = ?   ",[2978,9066,9069],{"className":9067},[9068],"opacity-60","(50ms)",[9024,9071,9073,9076,9077],{"className":9072},[2980],[2978,9074,9063],{"className":9075},[9062]," Thread-1: SELECT * FROM genres WHERE id = ?    ",[2978,9078,9080],{"className":9079},[9068],"(30ms)",[9024,9082,9084,9087,9088],{"className":9083},[2980],[2978,9085,9063],{"className":9086},[9062]," Thread-1: SELECT * FROM audiobooks WHERE id = ? ",[2978,9089,9091],{"className":9090},[9068],"(40ms)",[9024,9093,9095,9096],{"className":9094},[2980],"Час виконання: ",[2978,9097,9100],{"className":9098},[9099,9043],"text-rose-400","120ms",[9024,9102,9104],{"className":9103},[2980],"Завантажено: Іван, Проза, Захар Беркут",[9024,9106],{"className":9107},[2980],[9024,9109,9111],{"className":9110},[2980],[2978,9112,9114],{"className":9113},[9043],"=== Паралельне виконання ===",[9024,9116,9118,9121,9122],{"className":9117},[2980],[2978,9119,9063],{"className":9120},[9062]," Thread-2: SELECT * FROM authors WHERE id = ?   ",[2978,9123,9125],{"className":9124},[9068],"(запущено)",[9024,9127,9129,9132,9133],{"className":9128},[2980],[2978,9130,9063],{"className":9131},[9062]," Thread-3: SELECT * FROM genres WHERE id = ?    ",[2978,9134,9125],{"className":9135},[9068],[9024,9137,9139,9142,9143],{"className":9138},[2980],[2978,9140,9063],{"className":9141},[9062]," Thread-4: SELECT * FROM audiobooks WHERE id = ? ",[2978,9144,9125],{"className":9145},[9068],[9024,9147,9149,9154,9155],{"className":9148},[2980],[2978,9150,9153],{"className":9151},[9152],"text-green-400","✓"," Thread-3: genres завершено ",[2978,9156,9080],{"className":9157},[9068],[9024,9159,9161,9164,9165],{"className":9160},[2980],[2978,9162,9153],{"className":9163},[9152]," Thread-4: audiobooks завершено ",[2978,9166,9091],{"className":9167},[9068],[9024,9169,9171,9174,9175],{"className":9170},[2980],[2978,9172,9153],{"className":9173},[9152]," Thread-2: authors завершено ",[2978,9176,9069],{"className":9177},[9068],[9024,9179,9095,9181],{"className":9180},[2980],[2978,9182,9184],{"className":9183},[9152,9043],"52ms",[9024,9186,9104],{"className":9187},[2980],[9024,9189],{"className":9190},[2980],[9024,9192,9194],{"className":9193},[2980],[2978,9195,9197],{"className":9196},[9043],"=== Прискорення ===",[9024,9199,9201,9202,9206],{"className":9200},[2980],"Паралельне виконання у ",[2978,9203,9205],{"className":9204},[9152,9043],"2.31×"," швидше",[9024,9208,9210,9213],{"className":9209},[2980],[2978,9211,9044],{"className":9212},[9042,9043]," Закрито. Завершено 8 потоків",[2964,9215,9216],{},[3246,9217,9218],{},"Аналіз результатів:",[4854,9220,9221,9227,9233],{},[4083,9222,9223,9226],{},[3246,9224,9225],{},"Послідовне виконання:"," 50ms + 30ms + 40ms = 120ms. Потік блокується тричі.",[4083,9228,9229,9232],{},[3246,9230,9231],{},"Паралельне виконання:"," max(50ms, 30ms, 40ms) = 52ms (50ms + невелика overhead на координацію). Три потоки працюють одночасно.",[4083,9234,9235,9238],{},[3246,9236,9237],{},"Прискорення:"," 120ms / 52ms ≈ 2.3× швидше.",[3258,9240,9241],{},[2968,9242,9244],{"className":3262,"code":9243,"language":3258,"meta":2973,"style":2973},"gantt\n    title Послідовне vs Паралельне виконання\n    dateFormat X\n    axisFormat %L ms\n\n    section Послідовне\n    Author (50ms)    :a1, 0, 50\n    Genre (30ms)     :a2, after a1, 30\n    Audiobook (40ms) :a3, after a2, 40\n\n    section Паралельне\n    Author (50ms)    :b1, 0, 50\n    Genre (30ms)     :b2, 0, 30\n    Audiobook (40ms) :b3, 0, 40\n",[2975,9245,9246,9251,9256,9261,9266,9270,9275,9280,9285,9290,9294,9299,9304,9309],{"__ignoreMap":2973},[2978,9247,9248],{"class":2980,"line":2981},[2978,9249,9250],{},"gantt\n",[2978,9252,9253],{"class":2980,"line":3007},[2978,9254,9255],{},"    title Послідовне vs Паралельне виконання\n",[2978,9257,9258],{"class":2980,"line":3026},[2978,9259,9260],{},"    dateFormat X\n",[2978,9262,9263],{"class":2980,"line":3045},[2978,9264,9265],{},"    axisFormat %L ms\n",[2978,9267,9268],{"class":2980,"line":3063},[2978,9269,3067],{"emptyLinePlaceholder":3066},[2978,9271,9272],{"class":2980,"line":3070},[2978,9273,9274],{},"    section Послідовне\n",[2978,9276,9277],{"class":2980,"line":3077},[2978,9278,9279],{},"    Author (50ms)    :a1, 0, 50\n",[2978,9281,9282],{"class":2980,"line":3106},[2978,9283,9284],{},"    Genre (30ms)     :a2, after a1, 30\n",[2978,9286,9287],{"class":2980,"line":3111},[2978,9288,9289],{},"    Audiobook (40ms) :a3, after a2, 40\n",[2978,9291,9292],{"class":2980,"line":3117},[2978,9293,3067],{"emptyLinePlaceholder":3066},[2978,9295,9296],{"class":2980,"line":3157},[2978,9297,9298],{},"    section Паралельне\n",[2978,9300,9301],{"class":2980,"line":3194},[2978,9302,9303],{},"    Author (50ms)    :b1, 0, 50\n",[2978,9305,9306],{"class":2980,"line":3219},[2978,9307,9308],{},"    Genre (30ms)     :b2, 0, 30\n",[2978,9310,9311],{"class":2980,"line":3224},[2978,9312,9313],{},"    Audiobook (40ms) :b3, 0, 40\n",[2964,9315,9316],{},[3246,9317,9318],{},"Ключові рядки коду:",[4854,9320,9321,9338,9354],{},[4083,9322,9323,9326,9327,9330,9331,9334,9335,9337],{},[3246,9324,9325],{},"Рядки 73–79:"," Три виклики ",[2975,9328,9329],{},"findByIdAsync()"," запускаються ",[3246,9332,9333],{},"одразу",", не чекаючи один на одного. Кожен повертає ",[2975,9336,3559],{},", що виконується у своєму потоці.",[4083,9339,9340,9032,9343,9346,9347,9349,9350,9353],{},[3246,9341,9342],{},"Рядок 82:",[2975,9344,9345],{},"CompletableFuture.allOf()"," створює новий ",[2975,9348,3559],{},", що завершується лише коли ",[3246,9351,9352],{},"всі"," передані future завершені. Це точка синхронізації.",[4083,9355,9356,9032,9359,9361],{},[3246,9357,9358],{},"Рядки 85–87:",[2975,9360,3919],{}," на вже завершених future не блокується — результати готові негайно.",[3458,9363],{},[2959,9365,9367],{"id":9366},"композиція-асинхронних-операцій","Композиція асинхронних операцій",[2964,9369,9370,9372],{},[2975,9371,3559],{}," надає потужний API для композиції асинхронних операцій. Розглянемо типові патерни.",[3465,9374,9376],{"id":9375},"патерн-1-ланцюжок-залежних-операцій-thencompose","Патерн 1: Ланцюжок залежних операцій (thenCompose)",[2964,9378,9379],{},"Сценарій: завантажити книгу, потім завантажити всі книги того ж автора.",[2968,9381,9383],{"className":2970,"code":9382,"language":2972,"meta":4161,"style":2973},"/**\n * Завантажує книгу за ID, потім знаходить всі інші книги того ж автора.\n * \u003Cp>\n * Операції виконуються послідовно (друга залежить від результату першої),\n * але асинхронно — основний потік не блокується.\n */\npublic CompletableFuture\u003CList\u003CAudiobook>> findRelatedBooks(UUID bookId) {\n    return asyncAudiobookRepo.findByIdAsync(bookId)\n        .thenCompose(optBook -> {\n            // Цей блок виконується після завершення findByIdAsync\n            Audiobook book = optBook.orElseThrow();\n            UUID authorId = book.getAuthorId();\n            \n            // Запускаємо другий асинхронний запит\n            return asyncAudiobookRepo.findByAuthorIdAsync(authorId);\n        });\n    // Повертає CompletableFuture\u003CList\u003CAudiobook>> — результат другого запиту\n}\n\n// Використання:\nCompletableFuture\u003CList\u003CAudiobook>> futureRelated = findRelatedBooks(bookId);\nList\u003CAudiobook> relatedBooks = futureRelated.join(); // чекаємо завершення обох запитів\n",[2975,9384,9385,9389,9394,9398,9403,9408,9412,9435,9447,9462,9467,9485,9502,9507,9512,9525,9529,9534,9538,9542,9547,9571],{"__ignoreMap":2973},[2978,9386,9387],{"class":2980,"line":2981},[2978,9388,4199],{"class":3073},[2978,9390,9391],{"class":2980,"line":3007},[2978,9392,9393],{"class":3073}," * Завантажує книгу за ID, потім знаходить всі інші книги того ж автора.\n",[2978,9395,9396],{"class":2980,"line":3026},[2978,9397,4209],{"class":3073},[2978,9399,9400],{"class":2980,"line":3045},[2978,9401,9402],{"class":3073}," * Операції виконуються послідовно (друга залежить від результату першої),\n",[2978,9404,9405],{"class":2980,"line":3063},[2978,9406,9407],{"class":3073}," * але асинхронно — основний потік не блокується.\n",[2978,9409,9410],{"class":2980,"line":3070},[2978,9411,4289],{"class":3073},[2978,9413,9414,9416,9418,9420,9422,9425,9428,9430,9432],{"class":2980,"line":3077},[2978,9415,4294],{"class":3711},[2978,9417,5448],{"class":2984},[2978,9419,3562],{"class":2992},[2978,9421,4477],{"class":2984},[2978,9423,9424],{"class":2992},"\u003CAudiobook>> ",[2978,9426,9427],{"class":3000},"findRelatedBooks",[2978,9429,3135],{"class":2992},[2978,9431,6622],{"class":2984},[2978,9433,9434],{"class":2992}," bookId) {\n",[2978,9436,9437,9439,9441,9443,9445],{"class":2980,"line":3106},[2978,9438,3743],{"class":2996},[2978,9440,8128],{"class":2988},[2978,9442,3091],{"class":2992},[2978,9444,3579],{"class":3000},[2978,9446,8738],{"class":2992},[2978,9448,9449,9452,9455,9458,9460],{"class":2980,"line":3111},[2978,9450,9451],{"class":2992},"        .",[2978,9453,9454],{"class":3000},"thenCompose",[2978,9456,9457],{"class":2992},"(optBook ",[2978,9459,3712],{"class":3711},[2978,9461,3715],{"class":2992},[2978,9463,9464],{"class":2980,"line":3117},[2978,9465,9466],{"class":3073},"            // Цей блок виконується після завершення findByIdAsync\n",[2978,9468,9469,9472,9474,9476,9479,9481,9483],{"class":2980,"line":3157},[2978,9470,9471],{"class":2984},"            Audiobook",[2978,9473,3083],{"class":2988},[2978,9475,3016],{"class":2992},[2978,9477,9478],{"class":2988},"optBook",[2978,9480,3091],{"class":2992},[2978,9482,3100],{"class":3000},[2978,9484,3103],{"class":2992},[2978,9486,9487,9490,9492,9494,9496,9498,9500],{"class":2980,"line":3194},[2978,9488,9489],{"class":2984},"            UUID",[2978,9491,7570],{"class":2988},[2978,9493,3016],{"class":2992},[2978,9495,3138],{"class":2988},[2978,9497,3091],{"class":2992},[2978,9499,3143],{"class":3000},[2978,9501,3103],{"class":2992},[2978,9503,9504],{"class":2980,"line":3219},[2978,9505,9506],{"class":2992},"            \n",[2978,9508,9509],{"class":2980,"line":3224},[2978,9510,9511],{"class":3073},"            // Запускаємо другий асинхронний запит\n",[2978,9513,9514,9516,9518,9520,9522],{"class":2980,"line":3336},[2978,9515,5685],{"class":2996},[2978,9517,8128],{"class":2988},[2978,9519,3091],{"class":2992},[2978,9521,7563],{"class":3000},[2978,9523,9524],{"class":2992},"(authorId);\n",[2978,9526,9527],{"class":2980,"line":3341},[2978,9528,5700],{"class":2992},[2978,9530,9531],{"class":2980,"line":3346},[2978,9532,9533],{"class":3073},"    // Повертає CompletableFuture\u003CList\u003CAudiobook>> — результат другого запиту\n",[2978,9535,9536],{"class":2980,"line":3352},[2978,9537,4845],{"class":2992},[2978,9539,9540],{"class":2980,"line":3358},[2978,9541,3067],{"emptyLinePlaceholder":3066},[2978,9543,9544],{"class":2980,"line":3363},[2978,9545,9546],{"class":3073},"// Використання:\n",[2978,9548,9549,9551,9553,9555,9557,9559,9561,9564,9566,9568],{"class":2980,"line":3368},[2978,9550,3559],{"class":2984},[2978,9552,3562],{"class":2992},[2978,9554,4477],{"class":2984},[2978,9556,3562],{"class":2992},[2978,9558,3080],{"class":2984},[2978,9560,4404],{"class":2992},[2978,9562,9563],{"class":2988},"futureRelated",[2978,9565,3016],{"class":2992},[2978,9567,9427],{"class":3000},[2978,9569,9570],{"class":2992},"(bookId);\n",[2978,9572,9573,9575,9577,9579,9581,9584,9586,9588,9590,9592,9594],{"class":2980,"line":3373},[2978,9574,4477],{"class":2984},[2978,9576,3562],{"class":2992},[2978,9578,3080],{"class":2984},[2978,9580,3567],{"class":2992},[2978,9582,9583],{"class":2988},"relatedBooks",[2978,9585,3016],{"class":2992},[2978,9587,9563],{"class":2988},[2978,9589,3091],{"class":2992},[2978,9591,3636],{"class":3000},[2978,9593,3639],{"class":2992},[2978,9595,9596],{"class":3073},"// чекаємо завершення обох запитів\n",[2964,9598,9599],{},[3246,9600,9601,9602,9604,9605,9607],{},"Чому ",[2975,9603,9454],{},", а не ",[2975,9606,8657],{},"?",[4854,9609,9610,9619],{},[4083,9611,9612,9615,9616],{},[2975,9613,9614],{},"thenApply(Function\u003CT, U>)"," — для синхронних трансформацій: ",[2975,9617,9618],{},"future.thenApply(x -> x * 2)",[4083,9620,9621,9624,9625],{},[2975,9622,9623],{},"thenCompose(Function\u003CT, CF\u003CU>>)"," — для асинхронних операцій, що повертають ",[2975,9626,3559],{},[2964,9628,9629,9630,3436],{},"Якби ми використали ",[2975,9631,8657],{},[2968,9633,9635],{"className":2970,"code":9634,"language":2972,"meta":2973,"style":2973},"// ❌ НЕПРАВИЛЬНО — повертає CompletableFuture\u003CCompletableFuture\u003CList\u003CAudiobook>>>\nCompletableFuture\u003CCompletableFuture\u003CList\u003CAudiobook>>> nested = \n    asyncAudiobookRepo.findByIdAsync(bookId)\n        .thenApply(optBook -> {\n            Audiobook book = optBook.orElseThrow();\n            return asyncAudiobookRepo.findByAuthorIdAsync(book.getAuthorId());\n        });\n\n// ✅ ПРАВИЛЬНО — повертає CompletableFuture\u003CList\u003CAudiobook>>\nCompletableFuture\u003CList\u003CAudiobook>> flat = \n    asyncAudiobookRepo.findByIdAsync(bookId)\n        .thenCompose(optBook -> {\n            Audiobook book = optBook.orElseThrow();\n            return asyncAudiobookRepo.findByAuthorIdAsync(book.getAuthorId());\n        });\n",[2975,9636,9637,9642,9667,9678,9690,9706,9726,9730,9734,9739,9758,9768,9780,9796,9816],{"__ignoreMap":2973},[2978,9638,9639],{"class":2980,"line":2981},[2978,9640,9641],{"class":3073},"// ❌ НЕПРАВИЛЬНО — повертає CompletableFuture\u003CCompletableFuture\u003CList\u003CAudiobook>>>\n",[2978,9643,9644,9646,9648,9650,9652,9654,9656,9658,9661,9664],{"class":2980,"line":3007},[2978,9645,3559],{"class":2984},[2978,9647,3562],{"class":2992},[2978,9649,3559],{"class":2984},[2978,9651,3562],{"class":2992},[2978,9653,4477],{"class":2984},[2978,9655,3562],{"class":2992},[2978,9657,3080],{"class":2984},[2978,9659,9660],{"class":2992},">>> ",[2978,9662,9663],{"class":2988},"nested",[2978,9665,9666],{"class":2992}," = \n",[2978,9668,9669,9672,9674,9676],{"class":2980,"line":3026},[2978,9670,9671],{"class":2988},"    asyncAudiobookRepo",[2978,9673,3091],{"class":2992},[2978,9675,3579],{"class":3000},[2978,9677,8738],{"class":2992},[2978,9679,9680,9682,9684,9686,9688],{"class":2980,"line":3045},[2978,9681,9451],{"class":2992},[2978,9683,8657],{"class":3000},[2978,9685,9457],{"class":2992},[2978,9687,3712],{"class":3711},[2978,9689,3715],{"class":2992},[2978,9691,9692,9694,9696,9698,9700,9702,9704],{"class":2980,"line":3063},[2978,9693,9471],{"class":2984},[2978,9695,3083],{"class":2988},[2978,9697,3016],{"class":2992},[2978,9699,9478],{"class":2988},[2978,9701,3091],{"class":2992},[2978,9703,3100],{"class":3000},[2978,9705,3103],{"class":2992},[2978,9707,9708,9710,9712,9714,9716,9718,9720,9722,9724],{"class":2980,"line":3070},[2978,9709,5685],{"class":2996},[2978,9711,8128],{"class":2988},[2978,9713,3091],{"class":2992},[2978,9715,7563],{"class":3000},[2978,9717,3135],{"class":2992},[2978,9719,3138],{"class":2988},[2978,9721,3091],{"class":2992},[2978,9723,3143],{"class":3000},[2978,9725,3538],{"class":2992},[2978,9727,9728],{"class":2980,"line":3077},[2978,9729,5700],{"class":2992},[2978,9731,9732],{"class":2980,"line":3106},[2978,9733,3067],{"emptyLinePlaceholder":3066},[2978,9735,9736],{"class":2980,"line":3111},[2978,9737,9738],{"class":3073},"// ✅ ПРАВИЛЬНО — повертає CompletableFuture\u003CList\u003CAudiobook>>\n",[2978,9740,9741,9743,9745,9747,9749,9751,9753,9756],{"class":2980,"line":3117},[2978,9742,3559],{"class":2984},[2978,9744,3562],{"class":2992},[2978,9746,4477],{"class":2984},[2978,9748,3562],{"class":2992},[2978,9750,3080],{"class":2984},[2978,9752,4404],{"class":2992},[2978,9754,9755],{"class":2988},"flat",[2978,9757,9666],{"class":2992},[2978,9759,9760,9762,9764,9766],{"class":2980,"line":3157},[2978,9761,9671],{"class":2988},[2978,9763,3091],{"class":2992},[2978,9765,3579],{"class":3000},[2978,9767,8738],{"class":2992},[2978,9769,9770,9772,9774,9776,9778],{"class":2980,"line":3194},[2978,9771,9451],{"class":2992},[2978,9773,9454],{"class":3000},[2978,9775,9457],{"class":2992},[2978,9777,3712],{"class":3711},[2978,9779,3715],{"class":2992},[2978,9781,9782,9784,9786,9788,9790,9792,9794],{"class":2980,"line":3219},[2978,9783,9471],{"class":2984},[2978,9785,3083],{"class":2988},[2978,9787,3016],{"class":2992},[2978,9789,9478],{"class":2988},[2978,9791,3091],{"class":2992},[2978,9793,3100],{"class":3000},[2978,9795,3103],{"class":2992},[2978,9797,9798,9800,9802,9804,9806,9808,9810,9812,9814],{"class":2980,"line":3224},[2978,9799,5685],{"class":2996},[2978,9801,8128],{"class":2988},[2978,9803,3091],{"class":2992},[2978,9805,7563],{"class":3000},[2978,9807,3135],{"class":2992},[2978,9809,3138],{"class":2988},[2978,9811,3091],{"class":2992},[2978,9813,3143],{"class":3000},[2978,9815,3538],{"class":2992},[2978,9817,9818],{"class":2980,"line":3336},[2978,9819,5700],{"class":2992},[2964,9821,9822,9824,9825,9828,9829,3091],{},[2975,9823,9454],{}," є аналогом ",[2975,9826,9827],{},"flatMap"," у Stream API — він «розгортає» вкладений ",[2975,9830,3559],{},[3458,9832],{},[3465,9834,9836],{"id":9835},"патерн-2-комбінування-незалежних-результатів-thencombine","Патерн 2: Комбінування незалежних результатів (thenCombine)",[2964,9838,9839],{},"Сценарій: завантажити автора та його статистику (кількість книг, середній рейтинг) паралельно, потім об'єднати у DTO.",[2968,9841,9843],{"className":2970,"code":9842,"language":2972,"meta":4161,"style":2973},"/**\n * DTO для відображення автора зі статистикою.\n */\npublic record AuthorWithStats(\n    Author author,\n    long bookCount,\n    double averageRating\n) {}\n\n/**\n * Завантажує автора та його статистику паралельно.\n * \u003Cp>\n * Два запити виконуються одночасно, результати комбінуються\n * після завершення обох.\n */\npublic CompletableFuture\u003CAuthorWithStats> getAuthorWithStats(UUID authorId) {\n    // Запит 1: завантажити автора\n    CompletableFuture\u003CAuthor> futureAuthor = \n        asyncAuthorRepo.findByIdAsync(authorId)\n            .thenApply(opt -> opt.orElseThrow());\n\n    // Запит 2: порахувати книги автора (паралельно з запитом 1)\n    CompletableFuture\u003CLong> futureBookCount = \n        asyncAudiobookRepo.findByAuthorIdAsync(authorId)\n            .thenApply(List::size)\n            .thenApply(Long::valueOf);\n\n    // Запит 3: середній рейтинг (паралельно з 1 і 2)\n    CompletableFuture\u003CDouble> futureRating = \n        asyncRatingRepo.getAverageRatingForAuthor(authorId);\n\n    // Комбінуємо результати після завершення ВСІХ трьох запитів\n    return futureAuthor\n        .thenCombine(futureBookCount, (author, count) -> \n            new Object[] { author, count }) // проміжний результат\n        .thenCombine(futureRating, (arr, rating) -> \n            new AuthorWithStats((Author) arr[0], (Long) arr[1], rating));\n}\n\n// Використання:\nAuthorWithStats stats = getAuthorWithStats(authorId).join();\nSystem.out.println(stats.author().getFirstName() + \": \" \n                 + stats.bookCount() + \" книг, рейтинг \" + stats.averageRating());\n",[2975,9844,9845,9849,9854,9858,9870,9878,9886,9894,9899,9903,9907,9912,9916,9921,9926,9930,9949,9954,9968,9979,9997,10001,10006,10021,10032,10047,10061,10065,10070,10085,10097,10101,10106,10113,10128,10142,10155,10176,10180,10184,10188,10206,10238],{"__ignoreMap":2973},[2978,9846,9847],{"class":2980,"line":2981},[2978,9848,4199],{"class":3073},[2978,9850,9851],{"class":2980,"line":3007},[2978,9852,9853],{"class":3073}," * DTO для відображення автора зі статистикою.\n",[2978,9855,9856],{"class":2980,"line":3026},[2978,9857,4289],{"class":3073},[2978,9859,9860,9862,9865,9868],{"class":2980,"line":3045},[2978,9861,4294],{"class":3711},[2978,9863,9864],{"class":3711}," record",[2978,9866,9867],{"class":2984}," AuthorWithStats",[2978,9869,7004],{"class":2992},[2978,9871,9872,9875],{"class":2980,"line":3063},[2978,9873,9874],{"class":2984},"    Author",[2978,9876,9877],{"class":2992}," author,\n",[2978,9879,9880,9883],{"class":2980,"line":3070},[2978,9881,9882],{"class":2984},"    long",[2978,9884,9885],{"class":2992}," bookCount,\n",[2978,9887,9888,9891],{"class":2980,"line":3077},[2978,9889,9890],{"class":2984},"    double",[2978,9892,9893],{"class":2992}," averageRating\n",[2978,9895,9896],{"class":2980,"line":3106},[2978,9897,9898],{"class":2992},") {}\n",[2978,9900,9901],{"class":2980,"line":3111},[2978,9902,3067],{"emptyLinePlaceholder":3066},[2978,9904,9905],{"class":2980,"line":3117},[2978,9906,4199],{"class":3073},[2978,9908,9909],{"class":2980,"line":3157},[2978,9910,9911],{"class":3073}," * Завантажує автора та його статистику паралельно.\n",[2978,9913,9914],{"class":2980,"line":3194},[2978,9915,4209],{"class":3073},[2978,9917,9918],{"class":2980,"line":3219},[2978,9919,9920],{"class":3073}," * Два запити виконуються одночасно, результати комбінуються\n",[2978,9922,9923],{"class":2980,"line":3224},[2978,9924,9925],{"class":3073}," * після завершення обох.\n",[2978,9927,9928],{"class":2980,"line":3336},[2978,9929,4289],{"class":3073},[2978,9931,9932,9934,9936,9939,9942,9944,9946],{"class":2980,"line":3341},[2978,9933,4294],{"class":3711},[2978,9935,5448],{"class":2984},[2978,9937,9938],{"class":2992},"\u003CAuthorWithStats> ",[2978,9940,9941],{"class":3000},"getAuthorWithStats",[2978,9943,3135],{"class":2992},[2978,9945,6622],{"class":2984},[2978,9947,9948],{"class":2992}," authorId) {\n",[2978,9950,9951],{"class":2980,"line":3346},[2978,9952,9953],{"class":3073},"    // Запит 1: завантажити автора\n",[2978,9955,9956,9958,9960,9962,9964,9966],{"class":2980,"line":3352},[2978,9957,4383],{"class":2984},[2978,9959,3562],{"class":2992},[2978,9961,3120],{"class":2984},[2978,9963,3567],{"class":2992},[2978,9965,3570],{"class":2988},[2978,9967,9666],{"class":2992},[2978,9969,9970,9973,9975,9977],{"class":2980,"line":3358},[2978,9971,9972],{"class":2988},"        asyncAuthorRepo",[2978,9974,3091],{"class":2992},[2978,9976,3579],{"class":3000},[2978,9978,8649],{"class":2992},[2978,9980,9981,9983,9985,9987,9989,9991,9993,9995],{"class":2980,"line":3363},[2978,9982,8654],{"class":2992},[2978,9984,8657],{"class":3000},[2978,9986,8660],{"class":2992},[2978,9988,3712],{"class":3711},[2978,9990,8665],{"class":2988},[2978,9992,3091],{"class":2992},[2978,9994,3100],{"class":3000},[2978,9996,3538],{"class":2992},[2978,9998,9999],{"class":2980,"line":3368},[2978,10000,3067],{"emptyLinePlaceholder":3066},[2978,10002,10003],{"class":2980,"line":3373},[2978,10004,10005],{"class":3073},"    // Запит 2: порахувати книги автора (паралельно з запитом 1)\n",[2978,10007,10008,10010,10012,10014,10016,10019],{"class":2980,"line":3379},[2978,10009,4383],{"class":2984},[2978,10011,3562],{"class":2992},[2978,10013,4763],{"class":2984},[2978,10015,3567],{"class":2992},[2978,10017,10018],{"class":2988},"futureBookCount",[2978,10020,9666],{"class":2992},[2978,10022,10023,10026,10028,10030],{"class":2980,"line":3384},[2978,10024,10025],{"class":2988},"        asyncAudiobookRepo",[2978,10027,3091],{"class":2992},[2978,10029,7563],{"class":3000},[2978,10031,8649],{"class":2992},[2978,10033,10034,10036,10038,10041,10044],{"class":2980,"line":3389},[2978,10035,8654],{"class":2992},[2978,10037,8657],{"class":3000},[2978,10039,10040],{"class":2992},"(List",[2978,10042,10043],{"class":2996},"::",[2978,10045,10046],{"class":2992},"size)\n",[2978,10048,10049,10051,10053,10056,10058],{"class":2980,"line":3395},[2978,10050,8654],{"class":2992},[2978,10052,8657],{"class":3000},[2978,10054,10055],{"class":2992},"(Long",[2978,10057,10043],{"class":2996},[2978,10059,10060],{"class":2992},"valueOf);\n",[2978,10062,10063],{"class":2980,"line":3401},[2978,10064,3067],{"emptyLinePlaceholder":3066},[2978,10066,10067],{"class":2980,"line":3406},[2978,10068,10069],{"class":3073},"    // Запит 3: середній рейтинг (паралельно з 1 і 2)\n",[2978,10071,10072,10074,10076,10078,10080,10083],{"class":2980,"line":3411},[2978,10073,4383],{"class":2984},[2978,10075,3562],{"class":2992},[2978,10077,3197],{"class":2984},[2978,10079,3567],{"class":2992},[2978,10081,10082],{"class":2988},"futureRating",[2978,10084,9666],{"class":2992},[2978,10086,10087,10090,10092,10095],{"class":2980,"line":3416},[2978,10088,10089],{"class":2988},"        asyncRatingRepo",[2978,10091,3091],{"class":2992},[2978,10093,10094],{"class":3000},"getAverageRatingForAuthor",[2978,10096,9524],{"class":2992},[2978,10098,10099],{"class":2980,"line":4363},[2978,10100,3067],{"emptyLinePlaceholder":3066},[2978,10102,10103],{"class":2980,"line":4374},[2978,10104,10105],{"class":3073},"    // Комбінуємо результати після завершення ВСІХ трьох запитів\n",[2978,10107,10108,10110],{"class":2980,"line":4380},[2978,10109,3743],{"class":2996},[2978,10111,10112],{"class":2992}," futureAuthor\n",[2978,10114,10115,10117,10120,10123,10125],{"class":2980,"line":4417},[2978,10116,9451],{"class":2992},[2978,10118,10119],{"class":3000},"thenCombine",[2978,10121,10122],{"class":2992},"(futureBookCount, (author, count) ",[2978,10124,3712],{"class":3711},[2978,10126,10127],{"class":2992}," \n",[2978,10129,10130,10133,10136,10139],{"class":2980,"line":4422},[2978,10131,10132],{"class":2996},"            new",[2978,10134,10135],{"class":2984}," Object",[2978,10137,10138],{"class":2992},"[] { author, count }) ",[2978,10140,10141],{"class":3073},"// проміжний результат\n",[2978,10143,10144,10146,10148,10151,10153],{"class":2980,"line":4427},[2978,10145,9451],{"class":2992},[2978,10147,10119],{"class":3000},[2978,10149,10150],{"class":2992},"(futureRating, (arr, rating) ",[2978,10152,3712],{"class":3711},[2978,10154,10127],{"class":2992},[2978,10156,10157,10159,10161,10164,10167,10170,10173],{"class":2980,"line":4433},[2978,10158,10132],{"class":2996},[2978,10160,9867],{"class":3000},[2978,10162,10163],{"class":2992},"((Author) arr[",[2978,10165,10166],{"class":3735},"0",[2978,10168,10169],{"class":2992},"], (Long) arr[",[2978,10171,10172],{"class":3735},"1",[2978,10174,10175],{"class":2992},"], rating));\n",[2978,10177,10178],{"class":2980,"line":4438},[2978,10179,4845],{"class":2992},[2978,10181,10182],{"class":2980,"line":4444},[2978,10183,3067],{"emptyLinePlaceholder":3066},[2978,10185,10186],{"class":2980,"line":4450},[2978,10187,9546],{"class":3073},[2978,10189,10190,10193,10196,10198,10200,10202,10204],{"class":2980,"line":4455},[2978,10191,10192],{"class":2984},"AuthorWithStats",[2978,10194,10195],{"class":2988}," stats",[2978,10197,3016],{"class":2992},[2978,10199,9941],{"class":3000},[2978,10201,8406],{"class":2992},[2978,10203,3636],{"class":3000},[2978,10205,3103],{"class":2992},[2978,10207,10208,10210,10212,10214,10216,10218,10220,10223,10225,10227,10229,10231,10233,10236],{"class":2980,"line":4465},[2978,10209,3515],{"class":2988},[2978,10211,3091],{"class":2992},[2978,10213,3520],{"class":2988},[2978,10215,3091],{"class":2992},[2978,10217,3525],{"class":3000},[2978,10219,3135],{"class":2992},[2978,10221,10222],{"class":2988},"stats",[2978,10224,3091],{"class":2992},[2978,10226,3530],{"class":3000},[2978,10228,7964],{"class":2992},[2978,10230,3535],{"class":3000},[2978,10232,8536],{"class":2992},[2978,10234,10235],{"class":3608},"\": \"",[2978,10237,10127],{"class":2992},[2978,10239,10240,10243,10245,10247,10250,10252,10255,10257,10259,10261,10264],{"class":2980,"line":4470},[2978,10241,10242],{"class":2992},"                 + ",[2978,10244,10222],{"class":2988},[2978,10246,3091],{"class":2992},[2978,10248,10249],{"class":3000},"bookCount",[2978,10251,8536],{"class":2992},[2978,10253,10254],{"class":3608},"\" книг, рейтинг \"",[2978,10256,8527],{"class":2992},[2978,10258,10222],{"class":2988},[2978,10260,3091],{"class":2992},[2978,10262,10263],{"class":3000},"averageRating",[2978,10265,3538],{"class":2992},[2964,10267,10268],{},[3246,10269,10270,10271,10273],{},"Альтернативний синтаксис через ",[2975,10272,8774],{}," (більш читабельний для 3+ future):",[2968,10275,10277],{"className":2970,"code":10276,"language":2972,"meta":4161,"style":2973},"public CompletableFuture\u003CAuthorWithStats> getAuthorWithStats(UUID authorId) {\n    CompletableFuture\u003CAuthor> futureAuthor = \n        asyncAuthorRepo.findByIdAsync(authorId)\n            .thenApply(opt -> opt.orElseThrow());\n\n    CompletableFuture\u003CLong> futureBookCount = \n        asyncAudiobookRepo.findByAuthorIdAsync(authorId)\n            .thenApply(books -> (long) books.size());\n\n    CompletableFuture\u003CDouble> futureRating = \n        asyncRatingRepo.getAverageRatingForAuthor(authorId);\n\n    // Чекаємо завершення всіх трьох\n    return CompletableFuture.allOf(futureAuthor, futureBookCount, futureRating)\n        .thenApply(v -> new AuthorWithStats(\n            futureAuthor.join(),   // вже готовий — join() не блокується\n            futureBookCount.join(),\n            futureRating.join()\n        ));\n}\n",[2975,10278,10279,10295,10309,10319,10337,10341,10355,10365,10394,10398,10412,10422,10426,10431,10444,10462,10477,10489,10501,10506],{"__ignoreMap":2973},[2978,10280,10281,10283,10285,10287,10289,10291,10293],{"class":2980,"line":2981},[2978,10282,4294],{"class":3711},[2978,10284,5448],{"class":2984},[2978,10286,9938],{"class":2992},[2978,10288,9941],{"class":3000},[2978,10290,3135],{"class":2992},[2978,10292,6622],{"class":2984},[2978,10294,9948],{"class":2992},[2978,10296,10297,10299,10301,10303,10305,10307],{"class":2980,"line":3007},[2978,10298,4383],{"class":2984},[2978,10300,3562],{"class":2992},[2978,10302,3120],{"class":2984},[2978,10304,3567],{"class":2992},[2978,10306,3570],{"class":2988},[2978,10308,9666],{"class":2992},[2978,10310,10311,10313,10315,10317],{"class":2980,"line":3026},[2978,10312,9972],{"class":2988},[2978,10314,3091],{"class":2992},[2978,10316,3579],{"class":3000},[2978,10318,8649],{"class":2992},[2978,10320,10321,10323,10325,10327,10329,10331,10333,10335],{"class":2980,"line":3045},[2978,10322,8654],{"class":2992},[2978,10324,8657],{"class":3000},[2978,10326,8660],{"class":2992},[2978,10328,3712],{"class":3711},[2978,10330,8665],{"class":2988},[2978,10332,3091],{"class":2992},[2978,10334,3100],{"class":3000},[2978,10336,3538],{"class":2992},[2978,10338,10339],{"class":2980,"line":3063},[2978,10340,3067],{"emptyLinePlaceholder":3066},[2978,10342,10343,10345,10347,10349,10351,10353],{"class":2980,"line":3070},[2978,10344,4383],{"class":2984},[2978,10346,3562],{"class":2992},[2978,10348,4763],{"class":2984},[2978,10350,3567],{"class":2992},[2978,10352,10018],{"class":2988},[2978,10354,9666],{"class":2992},[2978,10356,10357,10359,10361,10363],{"class":2980,"line":3077},[2978,10358,10025],{"class":2988},[2978,10360,3091],{"class":2992},[2978,10362,7563],{"class":3000},[2978,10364,8649],{"class":2992},[2978,10366,10367,10369,10371,10374,10376,10378,10381,10384,10387,10389,10392],{"class":2980,"line":3106},[2978,10368,8654],{"class":2992},[2978,10370,8657],{"class":3000},[2978,10372,10373],{"class":2992},"(books ",[2978,10375,3712],{"class":3711},[2978,10377,4059],{"class":2992},[2978,10379,10380],{"class":2984},"long",[2978,10382,10383],{"class":2992},") ",[2978,10385,10386],{"class":2988},"books",[2978,10388,3091],{"class":2992},[2978,10390,10391],{"class":3000},"size",[2978,10393,3538],{"class":2992},[2978,10395,10396],{"class":2980,"line":3111},[2978,10397,3067],{"emptyLinePlaceholder":3066},[2978,10399,10400,10402,10404,10406,10408,10410],{"class":2980,"line":3117},[2978,10401,4383],{"class":2984},[2978,10403,3562],{"class":2992},[2978,10405,3197],{"class":2984},[2978,10407,3567],{"class":2992},[2978,10409,10082],{"class":2988},[2978,10411,9666],{"class":2992},[2978,10413,10414,10416,10418,10420],{"class":2980,"line":3157},[2978,10415,10089],{"class":2988},[2978,10417,3091],{"class":2992},[2978,10419,10094],{"class":3000},[2978,10421,9524],{"class":2992},[2978,10423,10424],{"class":2980,"line":3194},[2978,10425,3067],{"emptyLinePlaceholder":3066},[2978,10427,10428],{"class":2980,"line":3219},[2978,10429,10430],{"class":3073},"    // Чекаємо завершення всіх трьох\n",[2978,10432,10433,10435,10437,10439,10441],{"class":2980,"line":3224},[2978,10434,3743],{"class":2996},[2978,10436,5448],{"class":2988},[2978,10438,3091],{"class":2992},[2978,10440,8774],{"class":3000},[2978,10442,10443],{"class":2992},"(futureAuthor, futureBookCount, futureRating)\n",[2978,10445,10446,10448,10450,10453,10455,10458,10460],{"class":2980,"line":3336},[2978,10447,9451],{"class":2992},[2978,10449,8657],{"class":3000},[2978,10451,10452],{"class":2992},"(v ",[2978,10454,3712],{"class":3711},[2978,10456,10457],{"class":2996}," new",[2978,10459,9867],{"class":3000},[2978,10461,7004],{"class":2992},[2978,10463,10464,10467,10469,10471,10474],{"class":2980,"line":3341},[2978,10465,10466],{"class":2988},"            futureAuthor",[2978,10468,3091],{"class":2992},[2978,10470,3636],{"class":3000},[2978,10472,10473],{"class":2992},"(),   ",[2978,10475,10476],{"class":3073},"// вже готовий — join() не блокується\n",[2978,10478,10479,10482,10484,10486],{"class":2980,"line":3346},[2978,10480,10481],{"class":2988},"            futureBookCount",[2978,10483,3091],{"class":2992},[2978,10485,3636],{"class":3000},[2978,10487,10488],{"class":2992},"(),\n",[2978,10490,10491,10494,10496,10498],{"class":2980,"line":3352},[2978,10492,10493],{"class":2988},"            futureRating",[2978,10495,3091],{"class":2992},[2978,10497,3636],{"class":3000},[2978,10499,10500],{"class":2992},"()\n",[2978,10502,10503],{"class":2980,"line":3358},[2978,10504,10505],{"class":2992},"        ));\n",[2978,10507,10508],{"class":2980,"line":3363},[2978,10509,4845],{"class":2992},[3938,10511,10512,10522,10542,10545],{},[2964,10513,10514],{},[3246,10515,10516,10517,10519,10520,3436],{},"Коли використовувати ",[2975,10518,10119],{}," vs ",[2975,10521,8774],{},[4854,10523,10524,10531],{},[4083,10525,10526,10530],{},[3246,10527,10528,3436],{},[2975,10529,10119],{}," Для 2 future. Типобезпечний, компактний синтаксис.",[4083,10532,10533,10537,10538,10541],{},[3246,10534,10535,3436],{},[2975,10536,8774],{}," Для 3+ future. Більш читабельний, але втрачає типи (повертає ",[2975,10539,10540],{},"CompletableFuture\u003CVoid>",").",[2964,10543,10544],{},"Для production-коду з 3+ future рекомендується створити утилітний метод:",[2968,10546,10548],{"className":2970,"code":10547,"language":2972,"meta":2973,"style":2973},"public static \u003CT1, T2, T3, R> CompletableFuture\u003CR> combine(\n        CompletableFuture\u003CT1> f1,\n        CompletableFuture\u003CT2> f2,\n        CompletableFuture\u003CT3> f3,\n        TriFunction\u003CT1, T2, T3, R> combiner) {\n    return CompletableFuture.allOf(f1, f2, f3)\n        .thenApply(v -> combiner.apply(f1.join(), f2.join(), f3.join()));\n}\n",[2975,10549,10550,10569,10576,10583,10590,10598,10611,10660],{"__ignoreMap":2973},[2978,10551,10552,10554,10556,10559,10561,10564,10567],{"class":2980,"line":2981},[2978,10553,4294],{"class":3711},[2978,10555,7873],{"class":3711},[2978,10557,10558],{"class":2992}," \u003CT1, T2, T3, R> ",[2978,10560,3559],{"class":2984},[2978,10562,10563],{"class":2992},"\u003CR> ",[2978,10565,10566],{"class":3000},"combine",[2978,10568,7004],{"class":2992},[2978,10570,10571,10573],{"class":2980,"line":3007},[2978,10572,8629],{"class":2984},[2978,10574,10575],{"class":2992},"\u003CT1> f1,\n",[2978,10577,10578,10580],{"class":2980,"line":3026},[2978,10579,8629],{"class":2984},[2978,10581,10582],{"class":2992},"\u003CT2> f2,\n",[2978,10584,10585,10587],{"class":2980,"line":3045},[2978,10586,8629],{"class":2984},[2978,10588,10589],{"class":2992},"\u003CT3> f3,\n",[2978,10591,10592,10595],{"class":2980,"line":3063},[2978,10593,10594],{"class":2984},"        TriFunction",[2978,10596,10597],{"class":2992},"\u003CT1, T2, T3, R> combiner) {\n",[2978,10599,10600,10602,10604,10606,10608],{"class":2980,"line":3070},[2978,10601,3743],{"class":2996},[2978,10603,5448],{"class":2988},[2978,10605,3091],{"class":2992},[2978,10607,8774],{"class":3000},[2978,10609,10610],{"class":2992},"(f1, f2, f3)\n",[2978,10612,10613,10615,10617,10619,10621,10624,10626,10629,10631,10634,10636,10638,10641,10644,10646,10648,10650,10653,10655,10657],{"class":2980,"line":3077},[2978,10614,9451],{"class":2992},[2978,10616,8657],{"class":3000},[2978,10618,10452],{"class":2992},[2978,10620,3712],{"class":3711},[2978,10622,10623],{"class":2988}," combiner",[2978,10625,3091],{"class":2992},[2978,10627,10628],{"class":3000},"apply",[2978,10630,3135],{"class":2992},[2978,10632,10633],{"class":2988},"f1",[2978,10635,3091],{"class":2992},[2978,10637,3636],{"class":3000},[2978,10639,10640],{"class":2992},"(), ",[2978,10642,10643],{"class":2988},"f2",[2978,10645,3091],{"class":2992},[2978,10647,3636],{"class":3000},[2978,10649,10640],{"class":2992},[2978,10651,10652],{"class":2988},"f3",[2978,10654,3091],{"class":2992},[2978,10656,3636],{"class":3000},[2978,10658,10659],{"class":2992},"()));\n",[2978,10661,10662],{"class":2980,"line":3106},[2978,10663,4845],{"class":2992},[3458,10665],{},[3465,10667,10669],{"id":10668},"патерн-3-обробка-помилок-exceptionally-handle","Патерн 3: Обробка помилок (exceptionally, handle)",[2964,10671,10672,10673,10675],{},"Асинхронні операції можуть завершитися виключенням (SQLException, timeout тощо). ",[2975,10674,3559],{}," надає методи для обробки помилок без блокування потоку.",[2968,10677,10679],{"className":2970,"code":10678,"language":2972,"meta":4161,"style":2973},"/**\n * Завантажує автора за ID з fallback на значення за замовчуванням.\n * \u003Cp>\n * Якщо автор не знайдений або виникла помилка БД — повертає\n * \"невідомого автора\" замість виключення.\n */\npublic CompletableFuture\u003CAuthor> findAuthorOrDefault(UUID authorId) {\n    return asyncAuthorRepo.findByIdAsync(authorId)\n        .thenApply(opt -> opt.orElseThrow(() -> \n            new IllegalArgumentException(\"Автор не знайдений\")))\n        .exceptionally(ex -> {\n            // Цей блок виконується лише якщо виникло виключення\n            System.err.println(\"Помилка завантаження автора: \" + ex.getMessage());\n            \n            // Повертаємо fallback-значення\n            return new Author(\"Невідомий\", \"Автор\");\n        });\n}\n\n// Використання:\nAuthor author = findAuthorOrDefault(invalidId).join();\n// Якщо invalidId не існує → повертає Author(\"Невідомий\", \"Автор\")\n",[2975,10680,10681,10685,10690,10694,10699,10704,10708,10726,10738,10760,10775,10789,10794,10825,10829,10834,10855,10859,10863,10867,10871,10888],{"__ignoreMap":2973},[2978,10682,10683],{"class":2980,"line":2981},[2978,10684,4199],{"class":3073},[2978,10686,10687],{"class":2980,"line":3007},[2978,10688,10689],{"class":3073}," * Завантажує автора за ID з fallback на значення за замовчуванням.\n",[2978,10691,10692],{"class":2980,"line":3026},[2978,10693,4209],{"class":3073},[2978,10695,10696],{"class":2980,"line":3045},[2978,10697,10698],{"class":3073}," * Якщо автор не знайдений або виникла помилка БД — повертає\n",[2978,10700,10701],{"class":2980,"line":3063},[2978,10702,10703],{"class":3073}," * \"невідомого автора\" замість виключення.\n",[2978,10705,10706],{"class":2980,"line":3070},[2978,10707,4289],{"class":3073},[2978,10709,10710,10712,10714,10717,10720,10722,10724],{"class":2980,"line":3077},[2978,10711,4294],{"class":3711},[2978,10713,5448],{"class":2984},[2978,10715,10716],{"class":2992},"\u003CAuthor> ",[2978,10718,10719],{"class":3000},"findAuthorOrDefault",[2978,10721,3135],{"class":2992},[2978,10723,6622],{"class":2984},[2978,10725,9948],{"class":2992},[2978,10727,10728,10730,10732,10734,10736],{"class":2980,"line":3106},[2978,10729,3743],{"class":2996},[2978,10731,8096],{"class":2988},[2978,10733,3091],{"class":2992},[2978,10735,3579],{"class":3000},[2978,10737,8649],{"class":2992},[2978,10739,10740,10742,10744,10746,10748,10750,10752,10754,10756,10758],{"class":2980,"line":3111},[2978,10741,9451],{"class":2992},[2978,10743,8657],{"class":3000},[2978,10745,8660],{"class":2992},[2978,10747,3712],{"class":3711},[2978,10749,8665],{"class":2988},[2978,10751,3091],{"class":2992},[2978,10753,3100],{"class":3000},[2978,10755,3708],{"class":2992},[2978,10757,3712],{"class":3711},[2978,10759,10127],{"class":2992},[2978,10761,10762,10764,10767,10769,10772],{"class":2980,"line":3117},[2978,10763,10132],{"class":2996},[2978,10765,10766],{"class":3000}," IllegalArgumentException",[2978,10768,3135],{"class":2992},[2978,10770,10771],{"class":3608},"\"Автор не знайдений\"",[2978,10773,10774],{"class":2992},")))\n",[2978,10776,10777,10779,10782,10785,10787],{"class":2980,"line":3157},[2978,10778,9451],{"class":2992},[2978,10780,10781],{"class":3000},"exceptionally",[2978,10783,10784],{"class":2992},"(ex ",[2978,10786,3712],{"class":3711},[2978,10788,3715],{"class":2992},[2978,10790,10791],{"class":2980,"line":3194},[2978,10792,10793],{"class":3073},"            // Цей блок виконується лише якщо виникло виключення\n",[2978,10795,10796,10799,10801,10804,10806,10808,10810,10813,10815,10818,10820,10823],{"class":2980,"line":3219},[2978,10797,10798],{"class":2988},"            System",[2978,10800,3091],{"class":2992},[2978,10802,10803],{"class":2988},"err",[2978,10805,3091],{"class":2992},[2978,10807,3525],{"class":3000},[2978,10809,3135],{"class":2992},[2978,10811,10812],{"class":3608},"\"Помилка завантаження автора: \"",[2978,10814,8527],{"class":2992},[2978,10816,10817],{"class":2988},"ex",[2978,10819,3091],{"class":2992},[2978,10821,10822],{"class":3000},"getMessage",[2978,10824,3538],{"class":2992},[2978,10826,10827],{"class":2980,"line":3224},[2978,10828,9506],{"class":2992},[2978,10830,10831],{"class":2980,"line":3336},[2978,10832,10833],{"class":3073},"            // Повертаємо fallback-значення\n",[2978,10835,10836,10838,10840,10843,10845,10848,10850,10853],{"class":2980,"line":3341},[2978,10837,5685],{"class":2996},[2978,10839,10457],{"class":2996},[2978,10841,10842],{"class":3000}," Author",[2978,10844,3135],{"class":2992},[2978,10846,10847],{"class":3608},"\"Невідомий\"",[2978,10849,4307],{"class":2992},[2978,10851,10852],{"class":3608},"\"Автор\"",[2978,10854,3612],{"class":2992},[2978,10856,10857],{"class":2980,"line":3346},[2978,10858,5700],{"class":2992},[2978,10860,10861],{"class":2980,"line":3352},[2978,10862,4845],{"class":2992},[2978,10864,10865],{"class":2980,"line":3358},[2978,10866,3067],{"emptyLinePlaceholder":3066},[2978,10868,10869],{"class":2980,"line":3363},[2978,10870,9546],{"class":3073},[2978,10872,10873,10875,10877,10879,10881,10884,10886],{"class":2980,"line":3368},[2978,10874,3120],{"class":2984},[2978,10876,3123],{"class":2988},[2978,10878,3016],{"class":2992},[2978,10880,10719],{"class":3000},[2978,10882,10883],{"class":2992},"(invalidId).",[2978,10885,3636],{"class":3000},[2978,10887,3103],{"class":2992},[2978,10889,10890],{"class":2980,"line":3373},[2978,10891,10892],{"class":3073},"// Якщо invalidId не існує → повертає Author(\"Невідомий\", \"Автор\")\n",[2964,10894,10895],{},[3246,10896,10897,10898,10901],{},"Метод ",[2975,10899,10900],{},"handle"," для обробки успіху та помилки одночасно:",[2968,10903,10905],{"className":2970,"code":10904,"language":2972,"meta":4161,"style":2973},"/**\n * Завантажує автора та логує результат (успіх або помилку).\n * \u003Cp>\n * {@code handle} викликається завжди — незалежно від того,\n * завершився CompletableFuture успішно чи з виключенням.\n */\npublic CompletableFuture\u003CAuthor> findAuthorWithLogging(UUID authorId) {\n    return asyncAuthorRepo.findByIdAsync(authorId)\n        .thenApply(opt -> opt.orElseThrow())\n        .handle((author, ex) -> {\n            if (ex != null) {\n                // Виникло виключення\n                System.err.println(\"❌ Помилка: \" + ex.getMessage());\n                return new Author(\"Fallback\", \"Author\");\n            } else {\n                // Успішне завершення\n                System.out.println(\"✓ Завантажено: \" + author.getFirstName());\n                return author;\n            }\n        });\n}\n",[2975,10906,10907,10911,10916,10920,10925,10930,10934,10951,10963,10982,10995,11007,11012,11040,11061,11070,11075,11102,11109,11114,11118],{"__ignoreMap":2973},[2978,10908,10909],{"class":2980,"line":2981},[2978,10910,4199],{"class":3073},[2978,10912,10913],{"class":2980,"line":3007},[2978,10914,10915],{"class":3073}," * Завантажує автора та логує результат (успіх або помилку).\n",[2978,10917,10918],{"class":2980,"line":3026},[2978,10919,4209],{"class":3073},[2978,10921,10922],{"class":2980,"line":3045},[2978,10923,10924],{"class":3073}," * {@code handle} викликається завжди — незалежно від того,\n",[2978,10926,10927],{"class":2980,"line":3063},[2978,10928,10929],{"class":3073}," * завершився CompletableFuture успішно чи з виключенням.\n",[2978,10931,10932],{"class":2980,"line":3070},[2978,10933,4289],{"class":3073},[2978,10935,10936,10938,10940,10942,10945,10947,10949],{"class":2980,"line":3077},[2978,10937,4294],{"class":3711},[2978,10939,5448],{"class":2984},[2978,10941,10716],{"class":2992},[2978,10943,10944],{"class":3000},"findAuthorWithLogging",[2978,10946,3135],{"class":2992},[2978,10948,6622],{"class":2984},[2978,10950,9948],{"class":2992},[2978,10952,10953,10955,10957,10959,10961],{"class":2980,"line":3106},[2978,10954,3743],{"class":2996},[2978,10956,8096],{"class":2988},[2978,10958,3091],{"class":2992},[2978,10960,3579],{"class":3000},[2978,10962,8649],{"class":2992},[2978,10964,10965,10967,10969,10971,10973,10975,10977,10979],{"class":2980,"line":3111},[2978,10966,9451],{"class":2992},[2978,10968,8657],{"class":3000},[2978,10970,8660],{"class":2992},[2978,10972,3712],{"class":3711},[2978,10974,8665],{"class":2988},[2978,10976,3091],{"class":2992},[2978,10978,3100],{"class":3000},[2978,10980,10981],{"class":2992},"())\n",[2978,10983,10984,10986,10988,10991,10993],{"class":2980,"line":3117},[2978,10985,9451],{"class":2992},[2978,10987,10900],{"class":3000},[2978,10989,10990],{"class":2992},"((author, ex) ",[2978,10992,3712],{"class":3711},[2978,10994,3715],{"class":2992},[2978,10996,10997,11000,11003,11005],{"class":2980,"line":3157},[2978,10998,10999],{"class":2996},"            if",[2978,11001,11002],{"class":2992}," (ex != ",[2978,11004,5377],{"class":3711},[2978,11006,5278],{"class":2992},[2978,11008,11009],{"class":2980,"line":3194},[2978,11010,11011],{"class":3073},"                // Виникло виключення\n",[2978,11013,11014,11017,11019,11021,11023,11025,11027,11030,11032,11034,11036,11038],{"class":2980,"line":3219},[2978,11015,11016],{"class":2988},"                System",[2978,11018,3091],{"class":2992},[2978,11020,10803],{"class":2988},[2978,11022,3091],{"class":2992},[2978,11024,3525],{"class":3000},[2978,11026,3135],{"class":2992},[2978,11028,11029],{"class":3608},"\"❌ Помилка: \"",[2978,11031,8527],{"class":2992},[2978,11033,10817],{"class":2988},[2978,11035,3091],{"class":2992},[2978,11037,10822],{"class":3000},[2978,11039,3538],{"class":2992},[2978,11041,11042,11045,11047,11049,11051,11054,11056,11059],{"class":2980,"line":3224},[2978,11043,11044],{"class":2996},"                return",[2978,11046,10457],{"class":2996},[2978,11048,10842],{"class":3000},[2978,11050,3135],{"class":2992},[2978,11052,11053],{"class":3608},"\"Fallback\"",[2978,11055,4307],{"class":2992},[2978,11057,11058],{"class":3608},"\"Author\"",[2978,11060,3612],{"class":2992},[2978,11062,11063,11066,11068],{"class":2980,"line":3336},[2978,11064,11065],{"class":2992},"            } ",[2978,11067,6214],{"class":2996},[2978,11069,3715],{"class":2992},[2978,11071,11072],{"class":2980,"line":3341},[2978,11073,11074],{"class":3073},"                // Успішне завершення\n",[2978,11076,11077,11079,11081,11083,11085,11087,11089,11092,11094,11096,11098,11100],{"class":2980,"line":3346},[2978,11078,11016],{"class":2988},[2978,11080,3091],{"class":2992},[2978,11082,3520],{"class":2988},[2978,11084,3091],{"class":2992},[2978,11086,3525],{"class":3000},[2978,11088,3135],{"class":2992},[2978,11090,11091],{"class":3608},"\"✓ Завантажено: \"",[2978,11093,8527],{"class":2992},[2978,11095,3530],{"class":2988},[2978,11097,3091],{"class":2992},[2978,11099,3535],{"class":3000},[2978,11101,3538],{"class":2992},[2978,11103,11104,11106],{"class":2980,"line":3352},[2978,11105,11044],{"class":2996},[2978,11107,11108],{"class":2992}," author;\n",[2978,11110,11111],{"class":2980,"line":3358},[2978,11112,11113],{"class":2992},"            }\n",[2978,11115,11116],{"class":2980,"line":3363},[2978,11117,5700],{"class":2992},[2978,11119,11120],{"class":2980,"line":3368},[2978,11121,4845],{"class":2992},[2964,11123,11124],{},[3246,11125,11126,11127,11129,11130,3436],{},"Різниця між ",[2975,11128,10781],{}," та ",[2975,11131,10900],{},[3838,11133,11134,11149],{},[3841,11135,11136],{},[3844,11137,11138,11140,11143,11146],{},[3847,11139,3849],{},[3847,11141,11142],{},"Коли викликається",[3847,11144,11145],{},"Параметри",[3847,11147,11148],{},"Повертає",[3854,11150,11151,11171],{},[3844,11152,11153,11158,11161,11166],{},[3859,11154,11155],{},[2975,11156,11157],{},"exceptionally(Function\u003CThrowable, T>)",[3859,11159,11160],{},"Лише при виключенні",[3859,11162,11163],{},[2975,11164,11165],{},"Throwable ex",[3859,11167,11168,11170],{},[2975,11169,4150],{}," (fallback-значення)",[3844,11172,11173,11178,11181,11186],{},[3859,11174,11175],{},[2975,11176,11177],{},"handle(BiFunction\u003CT, Throwable, U>)",[3859,11179,11180],{},"Завжди (успіх або помилка)",[3859,11182,11183],{},[2975,11184,11185],{},"T result, Throwable ex",[3859,11187,11188,11191],{},[2975,11189,11190],{},"U"," (новий результат)",[6425,11193,11194,11213],{},[2964,11195,11196,9032,11199,11129,11201,9032,11203,11206,11207,11209,11210,3436],{},[3246,11197,11198],{},"Важливо:",[2975,11200,10781],{},[2975,11202,10900],{},[3246,11204,11205],{},"не перекидають виключення далі"," — вони перетворюють failed ",[2975,11208,3559],{}," на successful з fallback-значенням. Якщо потрібно пробросити виключення далі по ланцюжку — використовуйте ",[2975,11211,11212],{},"whenComplete",[2968,11214,11216],{"className":2970,"code":11215,"language":2972,"meta":2973,"style":2973},"future.whenComplete((result, ex) -> {\n    if (ex != null) {\n        System.err.println(\"Помилка: \" + ex);\n        // Виключення автоматично пробросується далі\n    }\n});\n",[2975,11217,11218,11233,11244,11264,11269,11273],{"__ignoreMap":2973},[2978,11219,11220,11222,11224,11226,11229,11231],{"class":2980,"line":2981},[2978,11221,3696],{"class":2988},[2978,11223,3091],{"class":2992},[2978,11225,11212],{"class":3000},[2978,11227,11228],{"class":2992},"((result, ex) ",[2978,11230,3712],{"class":3711},[2978,11232,3715],{"class":2992},[2978,11234,11235,11238,11240,11242],{"class":2980,"line":3007},[2978,11236,11237],{"class":2996},"    if",[2978,11239,11002],{"class":2992},[2978,11241,5377],{"class":3711},[2978,11243,5278],{"class":2992},[2978,11245,11246,11248,11250,11252,11254,11256,11258,11261],{"class":2980,"line":3026},[2978,11247,8345],{"class":2988},[2978,11249,3091],{"class":2992},[2978,11251,10803],{"class":2988},[2978,11253,3091],{"class":2992},[2978,11255,3525],{"class":3000},[2978,11257,3135],{"class":2992},[2978,11259,11260],{"class":3608},"\"Помилка: \"",[2978,11262,11263],{"class":2992}," + ex);\n",[2978,11265,11266],{"class":2980,"line":3045},[2978,11267,11268],{"class":3073},"        // Виключення автоматично пробросується далі\n",[2978,11270,11271],{"class":2980,"line":3063},[2978,11272,5307],{"class":2992},[2978,11274,11275],{"class":2980,"line":3070},[2978,11276,3754],{"class":2992},[3458,11278],{},[2959,11280,11282],{"id":11281},"асинхронні-транзакції-координація-з-unit-of-work","Асинхронні транзакції: Координація з Unit of Work",[2964,11284,11285,11286,11289,11290,11293],{},"Найскладніша частина асинхронності — координація ",[3246,11287,11288],{},"транзакцій",". У статті 16 ми реалізували ",[2975,11291,11292],{},"UnitOfWork",", що виконує кілька операцій в одній JDBC-транзакції:",[2968,11295,11297],{"className":2970,"code":11296,"language":2972,"meta":2973,"style":2973},"// Синхронний Unit of Work (стаття 16)\nUnitOfWork uow = new JdbcUnitOfWork(cm);\ntry {\n    Author author = new Author(\"Тарас\", \"Шевченко\");\n    Genre  genre  = new Genre(\"Поезія\");\n    Audiobook book = new Audiobook(\"Кобзар\", author, genre);\n\n    uow.registerNew(author);\n    uow.registerNew(genre);\n    uow.registerNew(book);\n\n    uow.commit(); // BEGIN; INSERT authors; INSERT genres; INSERT audiobooks; COMMIT\n} catch (Exception e) {\n    uow.rollback();\n    throw e;\n}\n",[2975,11298,11299,11304,11320,11327,11351,11372,11394,11398,11411,11422,11433,11437,11451,11468,11479,11487],{"__ignoreMap":2973},[2978,11300,11301],{"class":2980,"line":2981},[2978,11302,11303],{"class":3073},"// Синхронний Unit of Work (стаття 16)\n",[2978,11305,11306,11308,11311,11313,11315,11318],{"class":2980,"line":3007},[2978,11307,11292],{"class":2984},[2978,11309,11310],{"class":2988}," uow",[2978,11312,3016],{"class":2992},[2978,11314,2997],{"class":2996},[2978,11316,11317],{"class":3000}," JdbcUnitOfWork",[2978,11319,3004],{"class":2992},[2978,11321,11322,11325],{"class":2980,"line":3026},[2978,11323,11324],{"class":2996},"try",[2978,11326,3715],{"class":2992},[2978,11328,11329,11331,11333,11335,11337,11339,11341,11344,11346,11349],{"class":2980,"line":3045},[2978,11330,9874],{"class":2984},[2978,11332,3123],{"class":2988},[2978,11334,3016],{"class":2992},[2978,11336,2997],{"class":2996},[2978,11338,10842],{"class":3000},[2978,11340,3135],{"class":2992},[2978,11342,11343],{"class":3608},"\"Тарас\"",[2978,11345,4307],{"class":2992},[2978,11347,11348],{"class":3608},"\"Шевченко\"",[2978,11350,3612],{"class":2992},[2978,11352,11353,11356,11358,11360,11362,11365,11367,11370],{"class":2980,"line":3063},[2978,11354,11355],{"class":2984},"    Genre",[2978,11357,3163],{"class":2988},[2978,11359,3035],{"class":2992},[2978,11361,2997],{"class":2996},[2978,11363,11364],{"class":3000}," Genre",[2978,11366,3135],{"class":2992},[2978,11368,11369],{"class":3608},"\"Поезія\"",[2978,11371,3612],{"class":2992},[2978,11373,11374,11377,11379,11381,11383,11386,11388,11391],{"class":2980,"line":3070},[2978,11375,11376],{"class":2984},"    Audiobook",[2978,11378,3083],{"class":2988},[2978,11380,3016],{"class":2992},[2978,11382,2997],{"class":2996},[2978,11384,11385],{"class":3000}," Audiobook",[2978,11387,3135],{"class":2992},[2978,11389,11390],{"class":3608},"\"Кобзар\"",[2978,11392,11393],{"class":2992},", author, genre);\n",[2978,11395,11396],{"class":2980,"line":3077},[2978,11397,3067],{"emptyLinePlaceholder":3066},[2978,11399,11400,11403,11405,11408],{"class":2980,"line":3106},[2978,11401,11402],{"class":2988},"    uow",[2978,11404,3091],{"class":2992},[2978,11406,11407],{"class":3000},"registerNew",[2978,11409,11410],{"class":2992},"(author);\n",[2978,11412,11413,11415,11417,11419],{"class":2980,"line":3111},[2978,11414,11402],{"class":2988},[2978,11416,3091],{"class":2992},[2978,11418,11407],{"class":3000},[2978,11420,11421],{"class":2992},"(genre);\n",[2978,11423,11424,11426,11428,11430],{"class":2980,"line":3117},[2978,11425,11402],{"class":2988},[2978,11427,3091],{"class":2992},[2978,11429,11407],{"class":3000},[2978,11431,11432],{"class":2992},"(book);\n",[2978,11434,11435],{"class":2980,"line":3157},[2978,11436,3067],{"emptyLinePlaceholder":3066},[2978,11438,11439,11441,11443,11446,11448],{"class":2980,"line":3194},[2978,11440,11402],{"class":2988},[2978,11442,3091],{"class":2992},[2978,11444,11445],{"class":3000},"commit",[2978,11447,3639],{"class":2992},[2978,11449,11450],{"class":3073},"// BEGIN; INSERT authors; INSERT genres; INSERT audiobooks; COMMIT\n",[2978,11452,11453,11456,11458,11460,11463,11466],{"class":2980,"line":3219},[2978,11454,11455],{"class":2992},"} ",[2978,11457,3935],{"class":2996},[2978,11459,4059],{"class":2992},[2978,11461,11462],{"class":2984},"Exception",[2978,11464,11465],{"class":2988}," e",[2978,11467,5278],{"class":2992},[2978,11469,11470,11472,11474,11477],{"class":2980,"line":3224},[2978,11471,11402],{"class":2988},[2978,11473,3091],{"class":2992},[2978,11475,11476],{"class":3000},"rollback",[2978,11478,3103],{"class":2992},[2978,11480,11481,11484],{"class":2980,"line":3336},[2978,11482,11483],{"class":2996},"    throw",[2978,11485,11486],{"class":2992}," e;\n",[2978,11488,11489],{"class":2980,"line":3341},[2978,11490,4845],{"class":2992},[2964,11492,11493,11496,11497,11500,11501,11504,11505,11508,11509,11512,11513,11516],{},[3246,11494,11495],{},"Проблема з асинхронністю:"," JDBC-транзакція прив'язана до ",[3246,11498,11499],{},"одного Connection",", а Connection прив'язаний до ",[3246,11502,11503],{},"одного потоку",". Якщо ",[2975,11506,11507],{},"registerNew(author)"," виконується у Thread-1, а ",[2975,11510,11511],{},"registerNew(genre)"," у Thread-2 — вони отримають ",[3246,11514,11515],{},"різні Connection"," з пулу і не будуть частиною однієї транзакції.",[3258,11518,11519],{},[2968,11520,11522],{"className":3262,"code":11521,"language":3258,"meta":2973,"style":2973},"sequenceDiagram\n    participant Main as Основний потік\n    participant T1 as Thread-1 (author)\n    participant T2 as Thread-2 (genre)\n    participant Pool as Connection Pool\n    participant DB as База даних\n\n    Main->>T1: registerNew(author) async\n    Main->>T2: registerNew(genre) async\n\n    T1->>Pool: getConnection()\n    Pool-->>T1: Connection-A\n    T1->>DB: BEGIN (Connection-A)\n\n    T2->>Pool: getConnection()\n    Pool-->>T2: Connection-B (інше з'єднання!)\n    T2->>DB: BEGIN (Connection-B)\n\n    T1->>DB: INSERT authors (Connection-A)\n    T2->>DB: INSERT genres (Connection-B)\n\n    Note over DB: Дві окремі транзакції!\u003Cbr/>Якщо одна провалиться — інша закомітиться\n",[2975,11523,11524,11528,11533,11538,11543,11547,11551,11555,11560,11565,11569,11574,11579,11584,11588,11593,11598,11603,11607,11612,11617,11621],{"__ignoreMap":2973},[2978,11525,11526],{"class":2980,"line":2981},[2978,11527,3270],{},[2978,11529,11530],{"class":2980,"line":3007},[2978,11531,11532],{},"    participant Main as Основний потік\n",[2978,11534,11535],{"class":2980,"line":3026},[2978,11536,11537],{},"    participant T1 as Thread-1 (author)\n",[2978,11539,11540],{"class":2980,"line":3045},[2978,11541,11542],{},"    participant T2 as Thread-2 (genre)\n",[2978,11544,11545],{"class":2980,"line":3063},[2978,11546,3280],{},[2978,11548,11549],{"class":2980,"line":3070},[2978,11550,3285],{},[2978,11552,11553],{"class":2980,"line":3077},[2978,11554,3067],{"emptyLinePlaceholder":3066},[2978,11556,11557],{"class":2980,"line":3106},[2978,11558,11559],{},"    Main->>T1: registerNew(author) async\n",[2978,11561,11562],{"class":2980,"line":3111},[2978,11563,11564],{},"    Main->>T2: registerNew(genre) async\n",[2978,11566,11567],{"class":2980,"line":3117},[2978,11568,3067],{"emptyLinePlaceholder":3066},[2978,11570,11571],{"class":2980,"line":3157},[2978,11572,11573],{},"    T1->>Pool: getConnection()\n",[2978,11575,11576],{"class":2980,"line":3194},[2978,11577,11578],{},"    Pool-->>T1: Connection-A\n",[2978,11580,11581],{"class":2980,"line":3219},[2978,11582,11583],{},"    T1->>DB: BEGIN (Connection-A)\n",[2978,11585,11586],{"class":2980,"line":3224},[2978,11587,3067],{"emptyLinePlaceholder":3066},[2978,11589,11590],{"class":2980,"line":3336},[2978,11591,11592],{},"    T2->>Pool: getConnection()\n",[2978,11594,11595],{"class":2980,"line":3341},[2978,11596,11597],{},"    Pool-->>T2: Connection-B (інше з'єднання!)\n",[2978,11599,11600],{"class":2980,"line":3346},[2978,11601,11602],{},"    T2->>DB: BEGIN (Connection-B)\n",[2978,11604,11605],{"class":2980,"line":3352},[2978,11606,3067],{"emptyLinePlaceholder":3066},[2978,11608,11609],{"class":2980,"line":3358},[2978,11610,11611],{},"    T1->>DB: INSERT authors (Connection-A)\n",[2978,11613,11614],{"class":2980,"line":3363},[2978,11615,11616],{},"    T2->>DB: INSERT genres (Connection-B)\n",[2978,11618,11619],{"class":2980,"line":3368},[2978,11620,3067],{"emptyLinePlaceholder":3066},[2978,11622,11623],{"class":2980,"line":3373},[2978,11624,11625],{},"    Note over DB: Дві окремі транзакції!\u003Cbr/>Якщо одна провалиться — інша закомітиться\n",[3465,11627,11629],{"id":11628},"рішення-1-синхронний-commit-асинхронна-підготовка","Рішення 1: Синхронний commit, асинхронна підготовка",[2964,11631,11632,11635,11636,11639],{},[3246,11633,11634],{},"Ідея:"," Виконувати підготовчі операції (завантаження даних, валідацію) асинхронно, але сам ",[2975,11637,11638],{},"commit()"," — синхронно в одному потоці.",[2968,11641,11643],{"className":2970,"code":11642,"language":2972,"meta":4161,"style":2973},"/**\n * Асинхронна підготовка даних + синхронний commit.\n * \u003Cp>\n * Завантажуємо автора та жанр паралельно (асинхронно),\n * потім створюємо книгу та зберігаємо все в одній транзакції (синхронно).\n */\npublic CompletableFuture\u003CVoid> createAudiobookAsync(\n        String title, UUID authorId, UUID genreId) {\n\n    // Крок 1: Паралельно завантажити автора та жанр (асинхронно)\n    CompletableFuture\u003CAuthor> futureAuthor = \n        asyncAuthorRepo.findByIdAsync(authorId)\n            .thenApply(opt -> opt.orElseThrow());\n\n    CompletableFuture\u003CGenre> futureGenre = \n        asyncGenreRepo.findByIdAsync(genreId)\n            .thenApply(opt -> opt.orElseThrow());\n\n    // Крок 2: Після завершення обох — створити книгу та зберегти (синхронно)\n    return CompletableFuture.allOf(futureAuthor, futureGenre)\n        .thenApply(v -> {\n            Author author = futureAuthor.join();\n            Genre  genre  = futureGenre.join();\n\n            // Тут ми у пулі потоків, але виконуємо синхронний код\n            UnitOfWork uow = new JdbcUnitOfWork(connectionManager);\n            try {\n                Audiobook book = new Audiobook(title, author, genre);\n                uow.registerNew(book);\n                uow.commit(); // ← синхронний виклик у потоці пулу\n                return null; // Void\n            } catch (Exception e) {\n                uow.rollback();\n                throw new RuntimeException(e);\n            }\n        });\n}\n\n// Використання:\ncreateAudiobookAsync(\"Кобзар\", authorId, genreId)\n    .thenRun(() -> System.out.println(\"Книга створена\"))\n    .exceptionally(ex -> {\n        System.err.println(\"Помилка: \" + ex.getMessage());\n        return null;\n    });\n",[2975,11644,11645,11649,11654,11658,11663,11668,11672,11686,11704,11708,11713,11727,11737,11755,11759,11773,11784,11802,11806,11811,11824,11836,11853,11870,11874,11879,11895,11902,11918,11929,11942,11952,11966,11976,11989,11993,11997,12001,12005,12009,12020,12051,12063,12089,12097],{"__ignoreMap":2973},[2978,11646,11647],{"class":2980,"line":2981},[2978,11648,4199],{"class":3073},[2978,11650,11651],{"class":2980,"line":3007},[2978,11652,11653],{"class":3073}," * Асинхронна підготовка даних + синхронний commit.\n",[2978,11655,11656],{"class":2980,"line":3026},[2978,11657,4209],{"class":3073},[2978,11659,11660],{"class":2980,"line":3045},[2978,11661,11662],{"class":3073}," * Завантажуємо автора та жанр паралельно (асинхронно),\n",[2978,11664,11665],{"class":2980,"line":3063},[2978,11666,11667],{"class":3073}," * потім створюємо книгу та зберігаємо все в одній транзакції (синхронно).\n",[2978,11669,11670],{"class":2980,"line":3070},[2978,11671,4289],{"class":3073},[2978,11673,11674,11676,11678,11681,11684],{"class":2980,"line":3077},[2978,11675,4294],{"class":3711},[2978,11677,5448],{"class":2984},[2978,11679,11680],{"class":2992},"\u003CVoid> ",[2978,11682,11683],{"class":3000},"createAudiobookAsync",[2978,11685,7004],{"class":2992},[2978,11687,11688,11691,11694,11696,11699,11701],{"class":2980,"line":3106},[2978,11689,11690],{"class":2984},"        String",[2978,11692,11693],{"class":2992}," title, ",[2978,11695,6622],{"class":2984},[2978,11697,11698],{"class":2992}," authorId, ",[2978,11700,6622],{"class":2984},[2978,11702,11703],{"class":2992}," genreId) {\n",[2978,11705,11706],{"class":2980,"line":3111},[2978,11707,3067],{"emptyLinePlaceholder":3066},[2978,11709,11710],{"class":2980,"line":3117},[2978,11711,11712],{"class":3073},"    // Крок 1: Паралельно завантажити автора та жанр (асинхронно)\n",[2978,11714,11715,11717,11719,11721,11723,11725],{"class":2980,"line":3157},[2978,11716,4383],{"class":2984},[2978,11718,3562],{"class":2992},[2978,11720,3120],{"class":2984},[2978,11722,3567],{"class":2992},[2978,11724,3570],{"class":2988},[2978,11726,9666],{"class":2992},[2978,11728,11729,11731,11733,11735],{"class":2980,"line":3194},[2978,11730,9972],{"class":2988},[2978,11732,3091],{"class":2992},[2978,11734,3579],{"class":3000},[2978,11736,8649],{"class":2992},[2978,11738,11739,11741,11743,11745,11747,11749,11751,11753],{"class":2980,"line":3219},[2978,11740,8654],{"class":2992},[2978,11742,8657],{"class":3000},[2978,11744,8660],{"class":2992},[2978,11746,3712],{"class":3711},[2978,11748,8665],{"class":2988},[2978,11750,3091],{"class":2992},[2978,11752,3100],{"class":3000},[2978,11754,3538],{"class":2992},[2978,11756,11757],{"class":2980,"line":3224},[2978,11758,3067],{"emptyLinePlaceholder":3066},[2978,11760,11761,11763,11765,11767,11769,11771],{"class":2980,"line":3336},[2978,11762,4383],{"class":2984},[2978,11764,3562],{"class":2992},[2978,11766,3160],{"class":2984},[2978,11768,3567],{"class":2992},[2978,11770,8685],{"class":2988},[2978,11772,9666],{"class":2992},[2978,11774,11775,11778,11780,11782],{"class":2980,"line":3341},[2978,11776,11777],{"class":2988},"        asyncGenreRepo",[2978,11779,3091],{"class":2992},[2978,11781,3579],{"class":3000},[2978,11783,8696],{"class":2992},[2978,11785,11786,11788,11790,11792,11794,11796,11798,11800],{"class":2980,"line":3346},[2978,11787,8654],{"class":2992},[2978,11789,8657],{"class":3000},[2978,11791,8660],{"class":2992},[2978,11793,3712],{"class":3711},[2978,11795,8665],{"class":2988},[2978,11797,3091],{"class":2992},[2978,11799,3100],{"class":3000},[2978,11801,3538],{"class":2992},[2978,11803,11804],{"class":2980,"line":3352},[2978,11805,3067],{"emptyLinePlaceholder":3066},[2978,11807,11808],{"class":2980,"line":3358},[2978,11809,11810],{"class":3073},"    // Крок 2: Після завершення обох — створити книгу та зберегти (синхронно)\n",[2978,11812,11813,11815,11817,11819,11821],{"class":2980,"line":3363},[2978,11814,3743],{"class":2996},[2978,11816,5448],{"class":2988},[2978,11818,3091],{"class":2992},[2978,11820,8774],{"class":3000},[2978,11822,11823],{"class":2992},"(futureAuthor, futureGenre)\n",[2978,11825,11826,11828,11830,11832,11834],{"class":2980,"line":3368},[2978,11827,9451],{"class":2992},[2978,11829,8657],{"class":3000},[2978,11831,10452],{"class":2992},[2978,11833,3712],{"class":3711},[2978,11835,3715],{"class":2992},[2978,11837,11838,11841,11843,11845,11847,11849,11851],{"class":2980,"line":3373},[2978,11839,11840],{"class":2984},"            Author",[2978,11842,3123],{"class":2988},[2978,11844,3016],{"class":2992},[2978,11846,3570],{"class":2988},[2978,11848,3091],{"class":2992},[2978,11850,3636],{"class":3000},[2978,11852,3103],{"class":2992},[2978,11854,11855,11858,11860,11862,11864,11866,11868],{"class":2980,"line":3379},[2978,11856,11857],{"class":2984},"            Genre",[2978,11859,3163],{"class":2988},[2978,11861,3035],{"class":2992},[2978,11863,8685],{"class":2988},[2978,11865,3091],{"class":2992},[2978,11867,3636],{"class":3000},[2978,11869,3103],{"class":2992},[2978,11871,11872],{"class":2980,"line":3384},[2978,11873,3067],{"emptyLinePlaceholder":3066},[2978,11875,11876],{"class":2980,"line":3389},[2978,11877,11878],{"class":3073},"            // Тут ми у пулі потоків, але виконуємо синхронний код\n",[2978,11880,11881,11884,11886,11888,11890,11892],{"class":2980,"line":3395},[2978,11882,11883],{"class":2984},"            UnitOfWork",[2978,11885,11310],{"class":2988},[2978,11887,3016],{"class":2992},[2978,11889,2997],{"class":2996},[2978,11891,11317],{"class":3000},[2978,11893,11894],{"class":2992},"(connectionManager);\n",[2978,11896,11897,11900],{"class":2980,"line":3401},[2978,11898,11899],{"class":2996},"            try",[2978,11901,3715],{"class":2992},[2978,11903,11904,11907,11909,11911,11913,11915],{"class":2980,"line":3406},[2978,11905,11906],{"class":2984},"                Audiobook",[2978,11908,3083],{"class":2988},[2978,11910,3016],{"class":2992},[2978,11912,2997],{"class":2996},[2978,11914,11385],{"class":3000},[2978,11916,11917],{"class":2992},"(title, author, genre);\n",[2978,11919,11920,11923,11925,11927],{"class":2980,"line":3411},[2978,11921,11922],{"class":2988},"                uow",[2978,11924,3091],{"class":2992},[2978,11926,11407],{"class":3000},[2978,11928,11432],{"class":2992},[2978,11930,11931,11933,11935,11937,11939],{"class":2980,"line":3416},[2978,11932,11922],{"class":2988},[2978,11934,3091],{"class":2992},[2978,11936,11445],{"class":3000},[2978,11938,3639],{"class":2992},[2978,11940,11941],{"class":3073},"// ← синхронний виклик у потоці пулу\n",[2978,11943,11944,11946,11948,11950],{"class":2980,"line":4363},[2978,11945,11044],{"class":2996},[2978,11947,5688],{"class":3711},[2978,11949,5691],{"class":2992},[2978,11951,5694],{"class":3073},[2978,11953,11954,11956,11958,11960,11962,11964],{"class":2980,"line":4374},[2978,11955,11065],{"class":2992},[2978,11957,3935],{"class":2996},[2978,11959,4059],{"class":2992},[2978,11961,11462],{"class":2984},[2978,11963,11465],{"class":2988},[2978,11965,5278],{"class":2992},[2978,11967,11968,11970,11972,11974],{"class":2980,"line":4380},[2978,11969,11922],{"class":2988},[2978,11971,3091],{"class":2992},[2978,11973,11476],{"class":3000},[2978,11975,3103],{"class":2992},[2978,11977,11978,11981,11983,11986],{"class":2980,"line":4417},[2978,11979,11980],{"class":2996},"                throw",[2978,11982,10457],{"class":2996},[2978,11984,11985],{"class":3000}," RuntimeException",[2978,11987,11988],{"class":2992},"(e);\n",[2978,11990,11991],{"class":2980,"line":4422},[2978,11992,11113],{"class":2992},[2978,11994,11995],{"class":2980,"line":4427},[2978,11996,5700],{"class":2992},[2978,11998,11999],{"class":2980,"line":4433},[2978,12000,4845],{"class":2992},[2978,12002,12003],{"class":2980,"line":4438},[2978,12004,3067],{"emptyLinePlaceholder":3066},[2978,12006,12007],{"class":2980,"line":4444},[2978,12008,9546],{"class":3073},[2978,12010,12011,12013,12015,12017],{"class":2980,"line":4450},[2978,12012,11683],{"class":3000},[2978,12014,3135],{"class":2992},[2978,12016,11390],{"class":3608},[2978,12018,12019],{"class":2992},", authorId, genreId)\n",[2978,12021,12022,12025,12028,12030,12032,12035,12037,12039,12041,12043,12045,12048],{"class":2980,"line":4455},[2978,12023,12024],{"class":2992},"    .",[2978,12026,12027],{"class":3000},"thenRun",[2978,12029,3708],{"class":2992},[2978,12031,3712],{"class":3711},[2978,12033,12034],{"class":2988}," System",[2978,12036,3091],{"class":2992},[2978,12038,3520],{"class":2988},[2978,12040,3091],{"class":2992},[2978,12042,3525],{"class":3000},[2978,12044,3135],{"class":2992},[2978,12046,12047],{"class":3608},"\"Книга створена\"",[2978,12049,12050],{"class":2992},"))\n",[2978,12052,12053,12055,12057,12059,12061],{"class":2980,"line":4465},[2978,12054,12024],{"class":2992},[2978,12056,10781],{"class":3000},[2978,12058,10784],{"class":2992},[2978,12060,3712],{"class":3711},[2978,12062,3715],{"class":2992},[2978,12064,12065,12067,12069,12071,12073,12075,12077,12079,12081,12083,12085,12087],{"class":2980,"line":4470},[2978,12066,8345],{"class":2988},[2978,12068,3091],{"class":2992},[2978,12070,10803],{"class":2988},[2978,12072,3091],{"class":2992},[2978,12074,3525],{"class":3000},[2978,12076,3135],{"class":2992},[2978,12078,11260],{"class":3608},[2978,12080,8527],{"class":2992},[2978,12082,10817],{"class":2988},[2978,12084,3091],{"class":2992},[2978,12086,10822],{"class":3000},[2978,12088,3538],{"class":2992},[2978,12090,12091,12093,12095],{"class":2980,"line":4491},[2978,12092,5473],{"class":2996},[2978,12094,5688],{"class":3711},[2978,12096,3749],{"class":2992},[2978,12098,12099],{"class":2980,"line":4496},[2978,12100,12101],{"class":2992},"    });\n",[2964,12103,12104],{},[3246,12105,12106],{},"Переваги:",[4854,12108,12109,12112],{},[4083,12110,12111],{},"Паралельне завантаження даних (прискорення)",[4083,12113,12114],{},"Транзакційна цілісність (один Connection, одна транзакція)",[2964,12116,12117],{},[3246,12118,12119],{},"Недоліки:",[4854,12121,12122],{},[4083,12123,12124,12126],{},[2975,12125,11638],{}," все одно блокує потік пулу на час виконання INSERT",[3458,12128],{},[3465,12130,12132],{"id":12131},"рішення-2-asyncunitofwork-з-відкладеним-commit","Рішення 2: AsyncUnitOfWork з відкладеним commit",[2964,12134,12135,12136,12139,12140,12143],{},"Більш досконалий підхід — створити ",[2975,12137,12138],{},"AsyncUnitOfWork",", що накопичує операції асинхронно, а ",[2975,12141,12142],{},"commitAsync()"," виконує їх всі в одному потоці:",[2968,12145,12147],{"className":2970,"code":12146,"language":2972,"meta":4161,"style":2973},"package com.example.audiobook.persistence.async;\n\nimport com.example.audiobook.persistence.UnitOfWork;\n\nimport java.util.concurrent.CompletableFuture;\nimport java.util.concurrent.ExecutorService;\n\n/**\n * Асинхронна обгортка над {@link UnitOfWork}.\n * \u003Cp>\n * Методи реєстрації ({@code registerNew}, {@code registerDirty}) виконуються\n * синхронно (вони лише додають об'єкти до списків — без SQL).\n * \u003Cp>\n * {@link #commitAsync()} виконує всі SQL-операції асинхронно в одному потоці,\n * гарантуючи транзакційну цілісність.\n */\npublic class AsyncUnitOfWork {\n\n    private final UnitOfWork syncUnitOfWork;\n    private final ExecutorService executor;\n\n    public AsyncUnitOfWork(UnitOfWork syncUnitOfWork, ExecutorService executor) {\n        this.syncUnitOfWork = syncUnitOfWork;\n        this.executor = executor;\n    }\n\n    /**\n     * Реєструє новий об'єкт (синхронно — без SQL).\n     * Метод не блокується — просто додає об'єкт до списку.\n     */\n    public void registerNew(Object entity) {\n        syncUnitOfWork.registerNew(entity);\n    }\n\n    /**\n     * Реєструє змінений об'єкт (синхронно).\n     */\n    public void registerDirty(Object entity) {\n        syncUnitOfWork.registerDirty(entity);\n    }\n\n    /**\n     * Реєструє видалений об'єкт (синхронно).\n     */\n    public void registerDeleted(Object entity) {\n        syncUnitOfWork.registerDeleted(entity);\n    }\n\n    /**\n     * Асинхронно фіксує всі зміни в одній JDBC-транзакції.\n     * \u003Cp>\n     * Всі SQL-операції (INSERT, UPDATE, DELETE) виконуються\n     * послідовно в одному потоці пулу, використовуючи одне Connection.\n     * Це гарантує транзакційну цілісність.\n     *\n     * @return CompletableFuture\u003CVoid> — завершується після COMMIT або з виключенням\n     */\n    public CompletableFuture\u003CVoid> commitAsync() {\n        return CompletableFuture.runAsync(() -> {\n            // Цей блок виконується в одному потоці пулу\n            syncUnitOfWork.commit(); // BEGIN; INSERT...; UPDATE...; DELETE...; COMMIT\n        }, executor);\n    }\n\n    /**\n     * Відміняє всі незафіксовані зміни (синхронно — без SQL).\n     */\n    public void rollback() {\n        syncUnitOfWork.rollback();\n    }\n}\n",[2975,12148,12149,12156,12160,12167,12171,12177,12183,12187,12191,12196,12200,12205,12210,12214,12227,12232,12236,12247,12251,12265,12277,12281,12301,12313,12323,12327,12331,12335,12340,12345,12349,12367,12378,12382,12386,12390,12395,12399,12416,12427,12431,12435,12439,12444,12448,12465,12476,12480,12484,12488,12493,12497,12502,12507,12512,12516,12525,12529,12546,12562,12567,12581,12586,12590,12594,12598,12603,12607,12618,12628,12632],{"__ignoreMap":2973},[2978,12150,12151,12153],{"class":2980,"line":2981},[2978,12152,4168],{"class":3711},[2978,12154,12155],{"class":2992}," com.example.audiobook.persistence.async;\n",[2978,12157,12158],{"class":2980,"line":3007},[2978,12159,3067],{"emptyLinePlaceholder":3066},[2978,12161,12162,12164],{"class":2980,"line":3026},[2978,12163,4180],{"class":3711},[2978,12165,12166],{"class":2992}," com.example.audiobook.persistence.UnitOfWork;\n",[2978,12168,12169],{"class":2980,"line":3045},[2978,12170,3067],{"emptyLinePlaceholder":3066},[2978,12172,12173,12175],{"class":2980,"line":3063},[2978,12174,4180],{"class":3711},[2978,12176,4190],{"class":2992},[2978,12178,12179,12181],{"class":2980,"line":3070},[2978,12180,4180],{"class":3711},[2978,12182,4952],{"class":2992},[2978,12184,12185],{"class":2980,"line":3077},[2978,12186,3067],{"emptyLinePlaceholder":3066},[2978,12188,12189],{"class":2980,"line":3106},[2978,12190,4199],{"class":3073},[2978,12192,12193],{"class":2980,"line":3111},[2978,12194,12195],{"class":3073}," * Асинхронна обгортка над {@link UnitOfWork}.\n",[2978,12197,12198],{"class":2980,"line":3117},[2978,12199,4209],{"class":3073},[2978,12201,12202],{"class":2980,"line":3157},[2978,12203,12204],{"class":3073}," * Методи реєстрації ({@code registerNew}, {@code registerDirty}) виконуються\n",[2978,12206,12207],{"class":2980,"line":3194},[2978,12208,12209],{"class":3073}," * синхронно (вони лише додають об'єкти до списків — без SQL).\n",[2978,12211,12212],{"class":2980,"line":3219},[2978,12213,4209],{"class":3073},[2978,12215,12216,12218,12220,12222,12224],{"class":2980,"line":3224},[2978,12217,6573],{"class":3073},[2978,12219,6576],{"class":3711},[2978,12221,6579],{"class":3073},[2978,12223,12142],{"class":2988},[2978,12225,12226],{"class":3073},"} виконує всі SQL-операції асинхронно в одному потоці,\n",[2978,12228,12229],{"class":2980,"line":3336},[2978,12230,12231],{"class":3073}," * гарантуючи транзакційну цілісність.\n",[2978,12233,12234],{"class":2980,"line":3341},[2978,12235,4289],{"class":3073},[2978,12237,12238,12240,12242,12245],{"class":2980,"line":3346},[2978,12239,4294],{"class":3711},[2978,12241,5086],{"class":3711},[2978,12243,12244],{"class":2984}," AsyncUnitOfWork",[2978,12246,3715],{"class":2992},[2978,12248,12249],{"class":2980,"line":3352},[2978,12250,3067],{"emptyLinePlaceholder":3066},[2978,12252,12253,12255,12257,12260,12263],{"class":2980,"line":3358},[2978,12254,6651],{"class":3711},[2978,12256,5144],{"class":3711},[2978,12258,12259],{"class":2984}," UnitOfWork",[2978,12261,12262],{"class":2988}," syncUnitOfWork",[2978,12264,3749],{"class":2992},[2978,12266,12267,12269,12271,12273,12275],{"class":2980,"line":3363},[2978,12268,6651],{"class":3711},[2978,12270,5144],{"class":3711},[2978,12272,5193],{"class":2984},[2978,12274,5196],{"class":2988},[2978,12276,3749],{"class":2992},[2978,12278,12279],{"class":2980,"line":3368},[2978,12280,3067],{"emptyLinePlaceholder":3066},[2978,12282,12283,12285,12287,12289,12291,12293,12295,12297,12299],{"class":2980,"line":3373},[2978,12284,5445],{"class":3711},[2978,12286,12244],{"class":3000},[2978,12288,3135],{"class":2992},[2978,12290,11292],{"class":2984},[2978,12292,12262],{"class":2988},[2978,12294,4307],{"class":2992},[2978,12296,4124],{"class":2984},[2978,12298,5196],{"class":2988},[2978,12300,5278],{"class":2992},[2978,12302,12303,12305,12307,12310],{"class":2980,"line":3379},[2978,12304,5283],{"class":3711},[2978,12306,3091],{"class":2992},[2978,12308,12309],{"class":2988},"syncUnitOfWork",[2978,12311,12312],{"class":2992}," = syncUnitOfWork;\n",[2978,12314,12315,12317,12319,12321],{"class":2980,"line":3384},[2978,12316,5283],{"class":3711},[2978,12318,3091],{"class":2992},[2978,12320,5299],{"class":2988},[2978,12322,5302],{"class":2992},[2978,12324,12325],{"class":2980,"line":3389},[2978,12326,5307],{"class":2992},[2978,12328,12329],{"class":2980,"line":3395},[2978,12330,3067],{"emptyLinePlaceholder":3066},[2978,12332,12333],{"class":2980,"line":3401},[2978,12334,4322],{"class":3073},[2978,12336,12337],{"class":2980,"line":3406},[2978,12338,12339],{"class":3073},"     * Реєструє новий об'єкт (синхронно — без SQL).\n",[2978,12341,12342],{"class":2980,"line":3411},[2978,12343,12344],{"class":3073},"     * Метод не блокується — просто додає об'єкт до списку.\n",[2978,12346,12347],{"class":2980,"line":3416},[2978,12348,4377],{"class":3073},[2978,12350,12351,12353,12355,12358,12360,12363,12365],{"class":2980,"line":4363},[2978,12352,5445],{"class":3711},[2978,12354,6304],{"class":2984},[2978,12356,12357],{"class":3000}," registerNew",[2978,12359,3135],{"class":2992},[2978,12361,12362],{"class":2984},"Object",[2978,12364,4536],{"class":2988},[2978,12366,5278],{"class":2992},[2978,12368,12369,12372,12374,12376],{"class":2980,"line":4374},[2978,12370,12371],{"class":2988},"        syncUnitOfWork",[2978,12373,3091],{"class":2992},[2978,12375,11407],{"class":3000},[2978,12377,5679],{"class":2992},[2978,12379,12380],{"class":2980,"line":4380},[2978,12381,5307],{"class":2992},[2978,12383,12384],{"class":2980,"line":4417},[2978,12385,3067],{"emptyLinePlaceholder":3066},[2978,12387,12388],{"class":2980,"line":4422},[2978,12389,4322],{"class":3073},[2978,12391,12392],{"class":2980,"line":4427},[2978,12393,12394],{"class":3073},"     * Реєструє змінений об'єкт (синхронно).\n",[2978,12396,12397],{"class":2980,"line":4433},[2978,12398,4377],{"class":3073},[2978,12400,12401,12403,12405,12408,12410,12412,12414],{"class":2980,"line":4438},[2978,12402,5445],{"class":3711},[2978,12404,6304],{"class":2984},[2978,12406,12407],{"class":3000}," registerDirty",[2978,12409,3135],{"class":2992},[2978,12411,12362],{"class":2984},[2978,12413,4536],{"class":2988},[2978,12415,5278],{"class":2992},[2978,12417,12418,12420,12422,12425],{"class":2980,"line":4444},[2978,12419,12371],{"class":2988},[2978,12421,3091],{"class":2992},[2978,12423,12424],{"class":3000},"registerDirty",[2978,12426,5679],{"class":2992},[2978,12428,12429],{"class":2980,"line":4450},[2978,12430,5307],{"class":2992},[2978,12432,12433],{"class":2980,"line":4455},[2978,12434,3067],{"emptyLinePlaceholder":3066},[2978,12436,12437],{"class":2980,"line":4465},[2978,12438,4322],{"class":3073},[2978,12440,12441],{"class":2980,"line":4470},[2978,12442,12443],{"class":3073},"     * Реєструє видалений об'єкт (синхронно).\n",[2978,12445,12446],{"class":2980,"line":4491},[2978,12447,4377],{"class":3073},[2978,12449,12450,12452,12454,12457,12459,12461,12463],{"class":2980,"line":4496},[2978,12451,5445],{"class":3711},[2978,12453,6304],{"class":2984},[2978,12455,12456],{"class":3000}," registerDeleted",[2978,12458,3135],{"class":2992},[2978,12460,12362],{"class":2984},[2978,12462,4536],{"class":2988},[2978,12464,5278],{"class":2992},[2978,12466,12467,12469,12471,12474],{"class":2980,"line":4501},[2978,12468,12371],{"class":2988},[2978,12470,3091],{"class":2992},[2978,12472,12473],{"class":3000},"registerDeleted",[2978,12475,5679],{"class":2992},[2978,12477,12478],{"class":2980,"line":4507},[2978,12479,5307],{"class":2992},[2978,12481,12482],{"class":2980,"line":4512},[2978,12483,3067],{"emptyLinePlaceholder":3066},[2978,12485,12486],{"class":2980,"line":4518},[2978,12487,4322],{"class":3073},[2978,12489,12490],{"class":2980,"line":4524},[2978,12491,12492],{"class":3073},"     * Асинхронно фіксує всі зміни в одній JDBC-транзакції.\n",[2978,12494,12495],{"class":2980,"line":4529},[2978,12496,4332],{"class":3073},[2978,12498,12499],{"class":2980,"line":4542},[2978,12500,12501],{"class":3073},"     * Всі SQL-операції (INSERT, UPDATE, DELETE) виконуються\n",[2978,12503,12504],{"class":2980,"line":4552},[2978,12505,12506],{"class":3073},"     * послідовно в одному потоці пулу, використовуючи одне Connection.\n",[2978,12508,12509],{"class":2980,"line":4557},[2978,12510,12511],{"class":3073},"     * Це гарантує транзакційну цілісність.\n",[2978,12513,12514],{"class":2980,"line":4580},[2978,12515,4347],{"class":3073},[2978,12517,12518,12520,12522],{"class":2980,"line":4585},[2978,12519,4352],{"class":3073},[2978,12521,4368],{"class":3711},[2978,12523,12524],{"class":3073}," CompletableFuture\u003CVoid> — завершується після COMMIT або з виключенням\n",[2978,12526,12527],{"class":2980,"line":4590},[2978,12528,4377],{"class":3073},[2978,12530,12531,12533,12535,12537,12539,12541,12544],{"class":2980,"line":4596},[2978,12532,5445],{"class":3711},[2978,12534,5448],{"class":2984},[2978,12536,3562],{"class":2992},[2978,12538,4564],{"class":2984},[2978,12540,3567],{"class":2992},[2978,12542,12543],{"class":3000},"commitAsync",[2978,12545,5561],{"class":2992},[2978,12547,12548,12550,12552,12554,12556,12558,12560],{"class":2980,"line":4601},[2978,12549,5473],{"class":2996},[2978,12551,5448],{"class":2988},[2978,12553,3091],{"class":2992},[2978,12555,6149],{"class":3000},[2978,12557,3708],{"class":2992},[2978,12559,3712],{"class":3711},[2978,12561,3715],{"class":2992},[2978,12563,12564],{"class":2980,"line":4613},[2978,12565,12566],{"class":3073},"            // Цей блок виконується в одному потоці пулу\n",[2978,12568,12569,12572,12574,12576,12578],{"class":2980,"line":4623},[2978,12570,12571],{"class":2988},"            syncUnitOfWork",[2978,12573,3091],{"class":2992},[2978,12575,11445],{"class":3000},[2978,12577,3639],{"class":2992},[2978,12579,12580],{"class":3073},"// BEGIN; INSERT...; UPDATE...; DELETE...; COMMIT\n",[2978,12582,12583],{"class":2980,"line":4628},[2978,12584,12585],{"class":2992},"        }, executor);\n",[2978,12587,12588],{"class":2980,"line":4650},[2978,12589,5307],{"class":2992},[2978,12591,12592],{"class":2980,"line":4655},[2978,12593,3067],{"emptyLinePlaceholder":3066},[2978,12595,12596],{"class":2980,"line":4660},[2978,12597,4322],{"class":3073},[2978,12599,12600],{"class":2980,"line":4666},[2978,12601,12602],{"class":3073},"     * Відміняє всі незафіксовані зміни (синхронно — без SQL).\n",[2978,12604,12605],{"class":2980,"line":4671},[2978,12606,4377],{"class":3073},[2978,12608,12609,12611,12613,12616],{"class":2980,"line":4682},[2978,12610,5445],{"class":3711},[2978,12612,6304],{"class":2984},[2978,12614,12615],{"class":3000}," rollback",[2978,12617,5561],{"class":2992},[2978,12619,12620,12622,12624,12626],{"class":2980,"line":4692},[2978,12621,12371],{"class":2988},[2978,12623,3091],{"class":2992},[2978,12625,11476],{"class":3000},[2978,12627,3103],{"class":2992},[2978,12629,12630],{"class":2980,"line":4697},[2978,12631,5307],{"class":2992},[2978,12633,12634],{"class":2980,"line":4720},[2978,12635,4845],{"class":2992},[2964,12637,12638],{},[3246,12639,12640],{},"Використання:",[2968,12642,12644],{"className":2970,"code":12643,"language":2972,"meta":4161,"style":2973},"public CompletableFuture\u003CVoid> createComplexScenarioAsync() {\n    AsyncUnitOfWork asyncUow = new AsyncUnitOfWork(\n        new JdbcUnitOfWork(connectionManager), \n        executor\n    );\n\n    // Крок 1: Паралельно завантажити дані\n    CompletableFuture\u003CAuthor> futureAuthor = \n        asyncAuthorRepo.findByIdAsync(authorId)\n            .thenApply(opt -> opt.orElseThrow());\n\n    CompletableFuture\u003CGenre> futureGenre = \n        asyncGenreRepo.findByIdAsync(genreId)\n            .thenApply(opt -> opt.orElseThrow());\n\n    // Крок 2: Після завершення — зареєструвати об'єкти\n    return CompletableFuture.allOf(futureAuthor, futureGenre)\n        .thenApply(v -> {\n            Author author = futureAuthor.join();\n            Genre  genre  = futureGenre.join();\n\n            // Реєстрація — синхронна, без SQL\n            Audiobook book1 = new Audiobook(\"Книга 1\", author, genre);\n            Audiobook book2 = new Audiobook(\"Книга 2\", author, genre);\n            asyncUow.registerNew(book1);\n            asyncUow.registerNew(book2);\n\n            return null;\n        })\n        // Крок 3: Асинхронно закомітити всі зміни в одній транзакції\n        .thenCompose(v -> asyncUow.commitAsync())\n        .exceptionally(ex -> {\n            asyncUow.rollback();\n            throw new RuntimeException(\"Транзакція провалилася\", ex);\n        });\n}\n",[2975,12645,12646,12659,12675,12685,12690,12695,12699,12704,12718,12728,12746,12750,12764,12774,12792,12796,12801,12813,12825,12841,12857,12861,12866,12886,12906,12918,12929,12933,12941,12946,12951,12969,12981,12991,13008,13012],{"__ignoreMap":2973},[2978,12647,12648,12650,12652,12654,12657],{"class":2980,"line":2981},[2978,12649,4294],{"class":3711},[2978,12651,5448],{"class":2984},[2978,12653,11680],{"class":2992},[2978,12655,12656],{"class":3000},"createComplexScenarioAsync",[2978,12658,5561],{"class":2992},[2978,12660,12661,12664,12667,12669,12671,12673],{"class":2980,"line":3007},[2978,12662,12663],{"class":2984},"    AsyncUnitOfWork",[2978,12665,12666],{"class":2988}," asyncUow",[2978,12668,3016],{"class":2992},[2978,12670,2997],{"class":2996},[2978,12672,12244],{"class":3000},[2978,12674,7004],{"class":2992},[2978,12676,12677,12680,12682],{"class":2980,"line":3026},[2978,12678,12679],{"class":2996},"        new",[2978,12681,11317],{"class":3000},[2978,12683,12684],{"class":2992},"(connectionManager), \n",[2978,12686,12687],{"class":2980,"line":3045},[2978,12688,12689],{"class":2992},"        executor\n",[2978,12691,12692],{"class":2980,"line":3063},[2978,12693,12694],{"class":2992},"    );\n",[2978,12696,12697],{"class":2980,"line":3070},[2978,12698,3067],{"emptyLinePlaceholder":3066},[2978,12700,12701],{"class":2980,"line":3077},[2978,12702,12703],{"class":3073},"    // Крок 1: Паралельно завантажити дані\n",[2978,12705,12706,12708,12710,12712,12714,12716],{"class":2980,"line":3106},[2978,12707,4383],{"class":2984},[2978,12709,3562],{"class":2992},[2978,12711,3120],{"class":2984},[2978,12713,3567],{"class":2992},[2978,12715,3570],{"class":2988},[2978,12717,9666],{"class":2992},[2978,12719,12720,12722,12724,12726],{"class":2980,"line":3111},[2978,12721,9972],{"class":2988},[2978,12723,3091],{"class":2992},[2978,12725,3579],{"class":3000},[2978,12727,8649],{"class":2992},[2978,12729,12730,12732,12734,12736,12738,12740,12742,12744],{"class":2980,"line":3117},[2978,12731,8654],{"class":2992},[2978,12733,8657],{"class":3000},[2978,12735,8660],{"class":2992},[2978,12737,3712],{"class":3711},[2978,12739,8665],{"class":2988},[2978,12741,3091],{"class":2992},[2978,12743,3100],{"class":3000},[2978,12745,3538],{"class":2992},[2978,12747,12748],{"class":2980,"line":3157},[2978,12749,3067],{"emptyLinePlaceholder":3066},[2978,12751,12752,12754,12756,12758,12760,12762],{"class":2980,"line":3194},[2978,12753,4383],{"class":2984},[2978,12755,3562],{"class":2992},[2978,12757,3160],{"class":2984},[2978,12759,3567],{"class":2992},[2978,12761,8685],{"class":2988},[2978,12763,9666],{"class":2992},[2978,12765,12766,12768,12770,12772],{"class":2980,"line":3219},[2978,12767,11777],{"class":2988},[2978,12769,3091],{"class":2992},[2978,12771,3579],{"class":3000},[2978,12773,8696],{"class":2992},[2978,12775,12776,12778,12780,12782,12784,12786,12788,12790],{"class":2980,"line":3224},[2978,12777,8654],{"class":2992},[2978,12779,8657],{"class":3000},[2978,12781,8660],{"class":2992},[2978,12783,3712],{"class":3711},[2978,12785,8665],{"class":2988},[2978,12787,3091],{"class":2992},[2978,12789,3100],{"class":3000},[2978,12791,3538],{"class":2992},[2978,12793,12794],{"class":2980,"line":3336},[2978,12795,3067],{"emptyLinePlaceholder":3066},[2978,12797,12798],{"class":2980,"line":3341},[2978,12799,12800],{"class":3073},"    // Крок 2: Після завершення — зареєструвати об'єкти\n",[2978,12802,12803,12805,12807,12809,12811],{"class":2980,"line":3346},[2978,12804,3743],{"class":2996},[2978,12806,5448],{"class":2988},[2978,12808,3091],{"class":2992},[2978,12810,8774],{"class":3000},[2978,12812,11823],{"class":2992},[2978,12814,12815,12817,12819,12821,12823],{"class":2980,"line":3352},[2978,12816,9451],{"class":2992},[2978,12818,8657],{"class":3000},[2978,12820,10452],{"class":2992},[2978,12822,3712],{"class":3711},[2978,12824,3715],{"class":2992},[2978,12826,12827,12829,12831,12833,12835,12837,12839],{"class":2980,"line":3358},[2978,12828,11840],{"class":2984},[2978,12830,3123],{"class":2988},[2978,12832,3016],{"class":2992},[2978,12834,3570],{"class":2988},[2978,12836,3091],{"class":2992},[2978,12838,3636],{"class":3000},[2978,12840,3103],{"class":2992},[2978,12842,12843,12845,12847,12849,12851,12853,12855],{"class":2980,"line":3363},[2978,12844,11857],{"class":2984},[2978,12846,3163],{"class":2988},[2978,12848,3035],{"class":2992},[2978,12850,8685],{"class":2988},[2978,12852,3091],{"class":2992},[2978,12854,3636],{"class":3000},[2978,12856,3103],{"class":2992},[2978,12858,12859],{"class":2980,"line":3368},[2978,12860,3067],{"emptyLinePlaceholder":3066},[2978,12862,12863],{"class":2980,"line":3373},[2978,12864,12865],{"class":3073},"            // Реєстрація — синхронна, без SQL\n",[2978,12867,12868,12870,12873,12875,12877,12879,12881,12884],{"class":2980,"line":3379},[2978,12869,9471],{"class":2984},[2978,12871,12872],{"class":2988}," book1",[2978,12874,3016],{"class":2992},[2978,12876,2997],{"class":2996},[2978,12878,11385],{"class":3000},[2978,12880,3135],{"class":2992},[2978,12882,12883],{"class":3608},"\"Книга 1\"",[2978,12885,11393],{"class":2992},[2978,12887,12888,12890,12893,12895,12897,12899,12901,12904],{"class":2980,"line":3384},[2978,12889,9471],{"class":2984},[2978,12891,12892],{"class":2988}," book2",[2978,12894,3016],{"class":2992},[2978,12896,2997],{"class":2996},[2978,12898,11385],{"class":3000},[2978,12900,3135],{"class":2992},[2978,12902,12903],{"class":3608},"\"Книга 2\"",[2978,12905,11393],{"class":2992},[2978,12907,12908,12911,12913,12915],{"class":2980,"line":3389},[2978,12909,12910],{"class":2988},"            asyncUow",[2978,12912,3091],{"class":2992},[2978,12914,11407],{"class":3000},[2978,12916,12917],{"class":2992},"(book1);\n",[2978,12919,12920,12922,12924,12926],{"class":2980,"line":3395},[2978,12921,12910],{"class":2988},[2978,12923,3091],{"class":2992},[2978,12925,11407],{"class":3000},[2978,12927,12928],{"class":2992},"(book2);\n",[2978,12930,12931],{"class":2980,"line":3401},[2978,12932,3067],{"emptyLinePlaceholder":3066},[2978,12934,12935,12937,12939],{"class":2980,"line":3406},[2978,12936,5685],{"class":2996},[2978,12938,5688],{"class":3711},[2978,12940,3749],{"class":2992},[2978,12942,12943],{"class":2980,"line":3411},[2978,12944,12945],{"class":2992},"        })\n",[2978,12947,12948],{"class":2980,"line":3416},[2978,12949,12950],{"class":3073},"        // Крок 3: Асинхронно закомітити всі зміни в одній транзакції\n",[2978,12952,12953,12955,12957,12959,12961,12963,12965,12967],{"class":2980,"line":4363},[2978,12954,9451],{"class":2992},[2978,12956,9454],{"class":3000},[2978,12958,10452],{"class":2992},[2978,12960,3712],{"class":3711},[2978,12962,12666],{"class":2988},[2978,12964,3091],{"class":2992},[2978,12966,12543],{"class":3000},[2978,12968,10981],{"class":2992},[2978,12970,12971,12973,12975,12977,12979],{"class":2980,"line":4374},[2978,12972,9451],{"class":2992},[2978,12974,10781],{"class":3000},[2978,12976,10784],{"class":2992},[2978,12978,3712],{"class":3711},[2978,12980,3715],{"class":2992},[2978,12982,12983,12985,12987,12989],{"class":2980,"line":4380},[2978,12984,12910],{"class":2988},[2978,12986,3091],{"class":2992},[2978,12988,11476],{"class":3000},[2978,12990,3103],{"class":2992},[2978,12992,12993,12996,12998,13000,13002,13005],{"class":2980,"line":4417},[2978,12994,12995],{"class":2996},"            throw",[2978,12997,10457],{"class":2996},[2978,12999,11985],{"class":3000},[2978,13001,3135],{"class":2992},[2978,13003,13004],{"class":3608},"\"Транзакція провалилася\"",[2978,13006,13007],{"class":2992},", ex);\n",[2978,13009,13010],{"class":2980,"line":4422},[2978,13011,5700],{"class":2992},[2978,13013,13014],{"class":2980,"line":4427},[2978,13015,4845],{"class":2992},[2964,13017,13018,9032,13021,13023,13024,13026],{},[3246,13019,13020],{},"Ключова перевага:",[2975,13022,12142],{}," виконує ",[3246,13025,9352],{}," SQL-операції в одному потоці, використовуючи одне Connection. Це гарантує:",[4854,13028,13029,13032,13035],{},[4083,13030,13031],{},"Атомарність (або всі операції успішні, або жодна)",[4083,13033,13034],{},"Ізоляцію (інші транзакції не бачать проміжних станів)",[4083,13036,13037],{},"Консистентність (FK-обмеження перевіряються в межах однієї транзакції)",[4106,13039,13040,13043,13044,13046],{},[3246,13041,13042],{},"Чому методи реєстрації синхронні?"," Вони не виконують SQL — лише додають об'єкти до списків у пам'яті. Це швидка операція (мікросекунди), що не потребує асинхронності. Асинхронним є лише ",[2975,13045,12142],{},", що виконує реальні SQL-запити.",[3458,13048],{},[2959,13050,13052],{"id":13051},"обмеження-та-підводні-камені","Обмеження та підводні камені",[2964,13054,13055],{},"Асинхронність у JDBC не є «срібною кулею». Розглянемо типові проблеми та способи їх вирішення.",[3465,13057,13059],{"id":13058},"проблема-1-виснаження-пулу-зєднань","Проблема 1: Виснаження пулу з'єднань",[2964,13061,13062,13065],{},[3246,13063,13064],{},"Сценарій:"," Пул містить 10 Connection, але ви запускаєте 100 асинхронних запитів одночасно.",[2968,13067,13069],{"className":2970,"code":13068,"language":2972,"meta":2973,"style":2973},"// Запускаємо 100 асинхронних запитів\nList\u003CCompletableFuture\u003CAuthor>> futures = new ArrayList\u003C>();\nfor (int i = 0; i \u003C 100; i++) {\n    futures.add(asyncAuthorRepo.findByIdAsync(authorIds.get(i)));\n}\n\n// Що станеться?\n// - Перші 10 запитів отримають Connection з пулу\n// - Наступні 90 чекатимуть на звільнення Connection\n// - Потоки ExecutorService блокуються у getConnection()\n",[2975,13070,13071,13076,13103,13129,13161,13165,13169,13174,13179,13184],{"__ignoreMap":2973},[2978,13072,13073],{"class":2980,"line":2981},[2978,13074,13075],{"class":3073},"// Запускаємо 100 асинхронних запитів\n",[2978,13077,13078,13080,13082,13084,13086,13088,13090,13093,13095,13097,13100],{"class":2980,"line":3007},[2978,13079,4477],{"class":2984},[2978,13081,3562],{"class":2992},[2978,13083,3559],{"class":2984},[2978,13085,3562],{"class":2992},[2978,13087,3120],{"class":2984},[2978,13089,4404],{"class":2992},[2978,13091,13092],{"class":2988},"futures",[2978,13094,3016],{"class":2992},[2978,13096,2997],{"class":2996},[2978,13098,13099],{"class":2984}," ArrayList",[2978,13101,13102],{"class":2992},"\u003C>();\n",[2978,13104,13105,13108,13110,13113,13116,13118,13120,13123,13126],{"class":2980,"line":3026},[2978,13106,13107],{"class":2996},"for",[2978,13109,4059],{"class":2992},[2978,13111,13112],{"class":2984},"int",[2978,13114,13115],{"class":2988}," i",[2978,13117,3016],{"class":2992},[2978,13119,10166],{"class":3735},[2978,13121,13122],{"class":2992},"; i \u003C ",[2978,13124,13125],{"class":3735},"100",[2978,13127,13128],{"class":2992},"; i++) {\n",[2978,13130,13131,13134,13136,13139,13141,13144,13146,13148,13150,13153,13155,13158],{"class":2980,"line":3045},[2978,13132,13133],{"class":2988},"    futures",[2978,13135,3091],{"class":2992},[2978,13137,13138],{"class":3000},"add",[2978,13140,3135],{"class":2992},[2978,13142,13143],{"class":2988},"asyncAuthorRepo",[2978,13145,3091],{"class":2992},[2978,13147,3579],{"class":3000},[2978,13149,3135],{"class":2992},[2978,13151,13152],{"class":2988},"authorIds",[2978,13154,3091],{"class":2992},[2978,13156,13157],{"class":3000},"get",[2978,13159,13160],{"class":2992},"(i)));\n",[2978,13162,13163],{"class":2980,"line":3063},[2978,13164,4845],{"class":2992},[2978,13166,13167],{"class":2980,"line":3070},[2978,13168,3067],{"emptyLinePlaceholder":3066},[2978,13170,13171],{"class":2980,"line":3077},[2978,13172,13173],{"class":3073},"// Що станеться?\n",[2978,13175,13176],{"class":2980,"line":3106},[2978,13177,13178],{"class":3073},"// - Перші 10 запитів отримають Connection з пулу\n",[2978,13180,13181],{"class":2980,"line":3111},[2978,13182,13183],{"class":3073},"// - Наступні 90 чекатимуть на звільнення Connection\n",[2978,13185,13186],{"class":2980,"line":3117},[2978,13187,13188],{"class":3073},"// - Потоки ExecutorService блокуються у getConnection()\n",[2964,13190,13191,13194,13195,13198],{},[3246,13192,13193],{},"Проблема:"," Якщо розмір пулу потоків (ExecutorService) більший за розмір пулу з'єднань (ConnectionPool), потоки блокуватимуться у ",[2975,13196,13197],{},"getConnection()",", марнуючи ресурси.",[2964,13200,13201],{},[3246,13202,4116],{},[2968,13204,13206],{"className":2970,"code":13205,"language":2972,"meta":2973,"style":2973},"// Правило: розмір пулу потоків ≤ розмір пулу з'єднань\nint connectionPoolSize = 10;\nint threadPoolSize = connectionPoolSize; // або менше\n\nExecutorService executor = Executors.newFixedThreadPool(threadPoolSize);\n",[2975,13207,13208,13213,13227,13240,13244],{"__ignoreMap":2973},[2978,13209,13210],{"class":2980,"line":2981},[2978,13211,13212],{"class":3073},"// Правило: розмір пулу потоків ≤ розмір пулу з'єднань\n",[2978,13214,13215,13217,13220,13222,13225],{"class":2980,"line":3007},[2978,13216,13112],{"class":2984},[2978,13218,13219],{"class":2988}," connectionPoolSize",[2978,13221,3016],{"class":2992},[2978,13223,13224],{"class":3735},"10",[2978,13226,3749],{"class":2992},[2978,13228,13229,13231,13234,13237],{"class":2980,"line":3026},[2978,13230,13112],{"class":2984},[2978,13232,13233],{"class":2988}," threadPoolSize",[2978,13235,13236],{"class":2992}," = connectionPoolSize; ",[2978,13238,13239],{"class":3073},"// або менше\n",[2978,13241,13242],{"class":2980,"line":3045},[2978,13243,3067],{"emptyLinePlaceholder":3066},[2978,13245,13246,13248,13250,13252,13254,13256,13258],{"class":2980,"line":3063},[2978,13247,4124],{"class":2984},[2978,13249,5196],{"class":2988},[2978,13251,3016],{"class":2992},[2978,13253,7987],{"class":2988},[2978,13255,3091],{"class":2992},[2978,13257,7992],{"class":3000},[2978,13259,13260],{"class":2992},"(threadPoolSize);\n",[2964,13262,13263,13264,13267],{},"Альтернативно — використовуйте ",[3246,13265,13266],{},"Semaphore"," для обмеження кількості одночасних запитів:",[2968,13269,13271],{"className":2970,"code":13270,"language":2972,"meta":4161,"style":2973},"public class ThrottledAsyncRepository\u003CT, ID> extends AbstractAsyncRepository\u003CT, ID> {\n\n    private final Semaphore semaphore;\n\n    public ThrottledAsyncRepository(Repository\u003CT, ID> syncRepo, \n                                    ExecutorService executor,\n                                    int maxConcurrent) {\n        super(syncRepo, executor);\n        this.semaphore = new Semaphore(maxConcurrent);\n    }\n\n    @Override\n    public CompletableFuture\u003COptional\u003CT>> findByIdAsync(ID id) {\n        return CompletableFuture.supplyAsync(() -> {\n            try {\n                semaphore.acquire(); // чекаємо дозволу\n                try {\n                    return syncRepository.findById(id);\n                } finally {\n                    semaphore.release(); // звільняємо дозвіл\n                }\n            } catch (InterruptedException e) {\n                Thread.currentThread().interrupt();\n                throw new RuntimeException(e);\n            }\n        }, executor);\n    }\n}\n",[2975,13272,13273,13307,13311,13325,13329,13355,13363,13373,13380,13398,13402,13406,13412,13438,13454,13460,13475,13482,13495,13504,13519,13524,13539,13556,13566,13570,13574,13578],{"__ignoreMap":2973},[2978,13274,13275,13277,13279,13282,13284,13286,13288,13290,13292,13295,13297,13299,13301,13303,13305],{"class":2980,"line":2981},[2978,13276,4294],{"class":3711},[2978,13278,5086],{"class":3711},[2978,13280,13281],{"class":2984}," ThrottledAsyncRepository",[2978,13283,3562],{"class":2992},[2978,13285,4150],{"class":2984},[2978,13287,4307],{"class":2992},[2978,13289,4310],{"class":2984},[2978,13291,3567],{"class":2992},[2978,13293,13294],{"class":3711},"extends",[2978,13296,5089],{"class":2984},[2978,13298,3562],{"class":2992},[2978,13300,4150],{"class":2984},[2978,13302,4307],{"class":2992},[2978,13304,4310],{"class":2984},[2978,13306,4313],{"class":2992},[2978,13308,13309],{"class":2980,"line":3007},[2978,13310,3067],{"emptyLinePlaceholder":3066},[2978,13312,13313,13315,13317,13320,13323],{"class":2980,"line":3026},[2978,13314,6651],{"class":3711},[2978,13316,5144],{"class":3711},[2978,13318,13319],{"class":2984}," Semaphore",[2978,13321,13322],{"class":2988}," semaphore",[2978,13324,3749],{"class":2992},[2978,13326,13327],{"class":2980,"line":3045},[2978,13328,3067],{"emptyLinePlaceholder":3066},[2978,13330,13331,13333,13335,13337,13339,13341,13343,13345,13347,13349,13352],{"class":2980,"line":3063},[2978,13332,5445],{"class":3711},[2978,13334,13281],{"class":3000},[2978,13336,3135],{"class":2992},[2978,13338,5253],{"class":2984},[2978,13340,3562],{"class":2992},[2978,13342,4150],{"class":2984},[2978,13344,4307],{"class":2992},[2978,13346,4310],{"class":2984},[2978,13348,3567],{"class":2992},[2978,13350,13351],{"class":2988},"syncRepo",[2978,13353,13354],{"class":2992},", \n",[2978,13356,13357,13359,13361],{"class":2980,"line":3070},[2978,13358,7467],{"class":2984},[2978,13360,5196],{"class":2988},[2978,13362,5268],{"class":2992},[2978,13364,13365,13368,13371],{"class":2980,"line":3077},[2978,13366,13367],{"class":2984},"                                    int",[2978,13369,13370],{"class":2988}," maxConcurrent",[2978,13372,5278],{"class":2992},[2978,13374,13375,13377],{"class":2980,"line":3106},[2978,13376,6732],{"class":3711},[2978,13378,13379],{"class":2992},"(syncRepo, executor);\n",[2978,13381,13382,13384,13386,13389,13391,13393,13395],{"class":2980,"line":3111},[2978,13383,5283],{"class":3711},[2978,13385,3091],{"class":2992},[2978,13387,13388],{"class":2988},"semaphore",[2978,13390,3016],{"class":2992},[2978,13392,2997],{"class":2996},[2978,13394,13319],{"class":3000},[2978,13396,13397],{"class":2992},"(maxConcurrent);\n",[2978,13399,13400],{"class":2980,"line":3117},[2978,13401,5307],{"class":2992},[2978,13403,13404],{"class":2980,"line":3157},[2978,13405,3067],{"emptyLinePlaceholder":3066},[2978,13407,13408,13410],{"class":2980,"line":3194},[2978,13409,5437],{"class":2992},[2978,13411,5440],{"class":2984},[2978,13413,13414,13416,13418,13420,13422,13424,13426,13428,13430,13432,13434,13436],{"class":2980,"line":3219},[2978,13415,5445],{"class":3711},[2978,13417,5448],{"class":2984},[2978,13419,3562],{"class":2992},[2978,13421,4397],{"class":2984},[2978,13423,3562],{"class":2992},[2978,13425,4150],{"class":2984},[2978,13427,4404],{"class":2992},[2978,13429,3579],{"class":3000},[2978,13431,3135],{"class":2992},[2978,13433,4310],{"class":2984},[2978,13435,4357],{"class":2988},[2978,13437,5278],{"class":2992},[2978,13439,13440,13442,13444,13446,13448,13450,13452],{"class":2980,"line":3224},[2978,13441,5473],{"class":2996},[2978,13443,5448],{"class":2988},[2978,13445,3091],{"class":2992},[2978,13447,3705],{"class":3000},[2978,13449,3708],{"class":2992},[2978,13451,3712],{"class":3711},[2978,13453,3715],{"class":2992},[2978,13455,13456,13458],{"class":2980,"line":3336},[2978,13457,11899],{"class":2996},[2978,13459,3715],{"class":2992},[2978,13461,13462,13465,13467,13470,13472],{"class":2980,"line":3341},[2978,13463,13464],{"class":2988},"                semaphore",[2978,13466,3091],{"class":2992},[2978,13468,13469],{"class":3000},"acquire",[2978,13471,3639],{"class":2992},[2978,13473,13474],{"class":3073},"// чекаємо дозволу\n",[2978,13476,13477,13480],{"class":2980,"line":3346},[2978,13478,13479],{"class":2996},"                try",[2978,13481,3715],{"class":2992},[2978,13483,13484,13487,13489,13491,13493],{"class":2980,"line":3352},[2978,13485,13486],{"class":2996},"                    return",[2978,13488,5224],{"class":2988},[2978,13490,3091],{"class":2992},[2978,13492,3094],{"class":3000},[2978,13494,3582],{"class":2992},[2978,13496,13497,13500,13502],{"class":2980,"line":3358},[2978,13498,13499],{"class":2992},"                } ",[2978,13501,8172],{"class":2996},[2978,13503,3715],{"class":2992},[2978,13505,13506,13509,13511,13514,13516],{"class":2980,"line":3363},[2978,13507,13508],{"class":2988},"                    semaphore",[2978,13510,3091],{"class":2992},[2978,13512,13513],{"class":3000},"release",[2978,13515,3639],{"class":2992},[2978,13517,13518],{"class":3073},"// звільняємо дозвіл\n",[2978,13520,13521],{"class":2980,"line":3368},[2978,13522,13523],{"class":2992},"                }\n",[2978,13525,13526,13528,13530,13532,13535,13537],{"class":2980,"line":3373},[2978,13527,11065],{"class":2992},[2978,13529,3935],{"class":2996},[2978,13531,4059],{"class":2992},[2978,13533,13534],{"class":2984},"InterruptedException",[2978,13536,11465],{"class":2988},[2978,13538,5278],{"class":2992},[2978,13540,13541,13544,13546,13549,13551,13554],{"class":2980,"line":3379},[2978,13542,13543],{"class":2988},"                Thread",[2978,13545,3091],{"class":2992},[2978,13547,13548],{"class":3000},"currentThread",[2978,13550,7964],{"class":2992},[2978,13552,13553],{"class":3000},"interrupt",[2978,13555,3103],{"class":2992},[2978,13557,13558,13560,13562,13564],{"class":2980,"line":3384},[2978,13559,11980],{"class":2996},[2978,13561,10457],{"class":2996},[2978,13563,11985],{"class":3000},[2978,13565,11988],{"class":2992},[2978,13567,13568],{"class":2980,"line":3389},[2978,13569,11113],{"class":2992},[2978,13571,13572],{"class":2980,"line":3395},[2978,13573,12585],{"class":2992},[2978,13575,13576],{"class":2980,"line":3401},[2978,13577,5307],{"class":2992},[2978,13579,13580],{"class":2980,"line":3406},[2978,13581,4845],{"class":2992},[3458,13583],{},[3465,13585,13587],{"id":13586},"проблема-2-deadlock-при-вкладених-completablefuture","Проблема 2: Deadlock при вкладених CompletableFuture",[2964,13589,13590,13592,13593,13595,13596,13598],{},[3246,13591,13064],{}," Використання ",[2975,13594,3919],{}," всередині ",[2975,13597,8657],{}," може призвести до deadlock.",[2968,13600,13602],{"className":2970,"code":13601,"language":2972,"meta":2973,"style":2973},"// ❌ DEADLOCK: join() блокує потік, що виконує thenApply\nCompletableFuture\u003CAuthor> future1 = asyncAuthorRepo.findByIdAsync(id1);\nCompletableFuture\u003CGenre> future2 = future1.thenApply(author -> {\n    // Цей блок виконується у потоці пулу\n    // join() блокує потік, чекаючи на інший CompletableFuture\n    Genre genre = asyncGenreRepo.findByIdAsync(genreId).join(); // ← DEADLOCK!\n    return genre;\n});\n",[2975,13603,13604,13609,13633,13661,13666,13671,13696,13703],{"__ignoreMap":2973},[2978,13605,13606],{"class":2980,"line":2981},[2978,13607,13608],{"class":3073},"// ❌ DEADLOCK: join() блокує потік, що виконує thenApply\n",[2978,13610,13611,13613,13615,13617,13619,13622,13624,13626,13628,13630],{"class":2980,"line":3007},[2978,13612,3559],{"class":2984},[2978,13614,3562],{"class":2992},[2978,13616,3120],{"class":2984},[2978,13618,3567],{"class":2992},[2978,13620,13621],{"class":2988},"future1",[2978,13623,3016],{"class":2992},[2978,13625,13143],{"class":2988},[2978,13627,3091],{"class":2992},[2978,13629,3579],{"class":3000},[2978,13631,13632],{"class":2992},"(id1);\n",[2978,13634,13635,13637,13639,13641,13643,13646,13648,13650,13652,13654,13657,13659],{"class":2980,"line":3026},[2978,13636,3559],{"class":2984},[2978,13638,3562],{"class":2992},[2978,13640,3160],{"class":2984},[2978,13642,3567],{"class":2992},[2978,13644,13645],{"class":2988},"future2",[2978,13647,3016],{"class":2992},[2978,13649,13621],{"class":2988},[2978,13651,3091],{"class":2992},[2978,13653,8657],{"class":3000},[2978,13655,13656],{"class":2992},"(author ",[2978,13658,3712],{"class":3711},[2978,13660,3715],{"class":2992},[2978,13662,13663],{"class":2980,"line":3045},[2978,13664,13665],{"class":3073},"    // Цей блок виконується у потоці пулу\n",[2978,13667,13668],{"class":2980,"line":3063},[2978,13669,13670],{"class":3073},"    // join() блокує потік, чекаючи на інший CompletableFuture\n",[2978,13672,13673,13675,13678,13680,13683,13685,13687,13689,13691,13693],{"class":2980,"line":3070},[2978,13674,11355],{"class":2984},[2978,13676,13677],{"class":2988}," genre",[2978,13679,3016],{"class":2992},[2978,13681,13682],{"class":2988},"asyncGenreRepo",[2978,13684,3091],{"class":2992},[2978,13686,3579],{"class":3000},[2978,13688,8430],{"class":2992},[2978,13690,3636],{"class":3000},[2978,13692,3639],{"class":2992},[2978,13694,13695],{"class":3073},"// ← DEADLOCK!\n",[2978,13697,13698,13700],{"class":2980,"line":3077},[2978,13699,3743],{"class":2996},[2978,13701,13702],{"class":2992}," genre;\n",[2978,13704,13705],{"class":2980,"line":3106},[2978,13706,3754],{"class":2992},[2964,13708,13709,13712,13713,13715,13716,13719],{},[3246,13710,13711],{},"Чому deadlock?"," Якщо пул потоків має розмір 1, єдиний потік блокується у ",[2975,13714,3919],{},", чекаючи на ",[2975,13717,13718],{},"findByIdAsync(genreId)",", що має виконатися у тому ж потоці.",[2964,13721,13722,13724,13725,4147,13727,8527,13729,3436],{},[3246,13723,4116],{}," Використовуйте ",[2975,13726,9454],{},[2975,13728,8657],{},[2975,13730,3636],{},[2968,13732,13734],{"className":2970,"code":13733,"language":2972,"meta":2973,"style":2973},"// ✅ ПРАВИЛЬНО: thenCompose не блокує потік\nCompletableFuture\u003CGenre> future2 = future1.thenCompose(author -> \n    asyncGenreRepo.findByIdAsync(genreId)\n        .thenApply(opt -> opt.orElseThrow())\n);\n",[2975,13735,13736,13741,13767,13778,13796],{"__ignoreMap":2973},[2978,13737,13738],{"class":2980,"line":2981},[2978,13739,13740],{"class":3073},"// ✅ ПРАВИЛЬНО: thenCompose не блокує потік\n",[2978,13742,13743,13745,13747,13749,13751,13753,13755,13757,13759,13761,13763,13765],{"class":2980,"line":3007},[2978,13744,3559],{"class":2984},[2978,13746,3562],{"class":2992},[2978,13748,3160],{"class":2984},[2978,13750,3567],{"class":2992},[2978,13752,13645],{"class":2988},[2978,13754,3016],{"class":2992},[2978,13756,13621],{"class":2988},[2978,13758,3091],{"class":2992},[2978,13760,9454],{"class":3000},[2978,13762,13656],{"class":2992},[2978,13764,3712],{"class":3711},[2978,13766,10127],{"class":2992},[2978,13768,13769,13772,13774,13776],{"class":2980,"line":3026},[2978,13770,13771],{"class":2988},"    asyncGenreRepo",[2978,13773,3091],{"class":2992},[2978,13775,3579],{"class":3000},[2978,13777,8696],{"class":2992},[2978,13779,13780,13782,13784,13786,13788,13790,13792,13794],{"class":2980,"line":3045},[2978,13781,9451],{"class":2992},[2978,13783,8657],{"class":3000},[2978,13785,8660],{"class":2992},[2978,13787,3712],{"class":3711},[2978,13789,8665],{"class":2988},[2978,13791,3091],{"class":2992},[2978,13793,3100],{"class":3000},[2978,13795,10981],{"class":2992},[2978,13797,13798],{"class":2980,"line":3063},[2978,13799,3612],{"class":2992},[6425,13801,13802,13805,13806,13808,13809,13595,13812,4307,13814,4307,13816,13819,13820,3091],{},[3246,13803,13804],{},"Золоте правило:"," Ніколи не викликайте ",[2975,13807,3919],{}," або ",[2975,13810,13811],{},"get()",[2975,13813,8657],{},[2975,13815,9454],{},[2975,13817,13818],{},"thenAccept"," тощо. Використовуйте композицію через ",[2975,13821,9454],{},[3458,13823],{},[3465,13825,13827],{"id":13826},"проблема-3-втрата-контексту-виключень","Проблема 3: Втрата контексту виключень",[2964,13829,13830,13832,13833,13835,13836,13839],{},[3246,13831,13064],{}," Виключення у ",[2975,13834,3559],{}," обгортається у ",[2975,13837,13838],{},"CompletionException",", що ускладнює діагностику.",[2968,13841,13843],{"className":2970,"code":13842,"language":2972,"meta":2973,"style":2973},"try {\n    Author author = asyncAuthorRepo.findByIdAsync(invalidId).join();\n} catch (Exception e) {\n    // e — це CompletionException, що обгортає SQLException\n    System.err.println(e.getClass()); // CompletionException\n    System.err.println(e.getCause().getClass()); // DatabaseException\n}\n",[2975,13844,13845,13851,13871,13885,13890,13919,13949],{"__ignoreMap":2973},[2978,13846,13847,13849],{"class":2980,"line":2981},[2978,13848,11324],{"class":2996},[2978,13850,3715],{"class":2992},[2978,13852,13853,13855,13857,13859,13861,13863,13865,13867,13869],{"class":2980,"line":3007},[2978,13854,9874],{"class":2984},[2978,13856,3123],{"class":2988},[2978,13858,3016],{"class":2992},[2978,13860,13143],{"class":2988},[2978,13862,3091],{"class":2992},[2978,13864,3579],{"class":3000},[2978,13866,10883],{"class":2992},[2978,13868,3636],{"class":3000},[2978,13870,3103],{"class":2992},[2978,13872,13873,13875,13877,13879,13881,13883],{"class":2980,"line":3026},[2978,13874,11455],{"class":2992},[2978,13876,3935],{"class":2996},[2978,13878,4059],{"class":2992},[2978,13880,11462],{"class":2984},[2978,13882,11465],{"class":2988},[2978,13884,5278],{"class":2992},[2978,13886,13887],{"class":2980,"line":3045},[2978,13888,13889],{"class":3073},"    // e — це CompletionException, що обгортає SQLException\n",[2978,13891,13892,13895,13897,13899,13901,13903,13905,13908,13910,13913,13916],{"class":2980,"line":3063},[2978,13893,13894],{"class":2988},"    System",[2978,13896,3091],{"class":2992},[2978,13898,10803],{"class":2988},[2978,13900,3091],{"class":2992},[2978,13902,3525],{"class":3000},[2978,13904,3135],{"class":2992},[2978,13906,13907],{"class":2988},"e",[2978,13909,3091],{"class":2992},[2978,13911,13912],{"class":3000},"getClass",[2978,13914,13915],{"class":2992},"()); ",[2978,13917,13918],{"class":3073},"// CompletionException\n",[2978,13920,13921,13923,13925,13927,13929,13931,13933,13935,13937,13940,13942,13944,13946],{"class":2980,"line":3070},[2978,13922,13894],{"class":2988},[2978,13924,3091],{"class":2992},[2978,13926,10803],{"class":2988},[2978,13928,3091],{"class":2992},[2978,13930,3525],{"class":3000},[2978,13932,3135],{"class":2992},[2978,13934,13907],{"class":2988},[2978,13936,3091],{"class":2992},[2978,13938,13939],{"class":3000},"getCause",[2978,13941,7964],{"class":2992},[2978,13943,13912],{"class":3000},[2978,13945,13915],{"class":2992},[2978,13947,13948],{"class":3073},"// DatabaseException\n",[2978,13950,13951],{"class":2980,"line":3077},[2978,13952,4845],{"class":2992},[2964,13954,13955,13724,13957,13808,13959,13961,13962,3436],{},[3246,13956,4116],{},[2975,13958,10781],{},[2975,13960,10900],{}," для обробки виключень на рівні ",[2975,13963,3559],{},[2968,13965,13967],{"className":2970,"code":13966,"language":2972,"meta":2973,"style":2973},"asyncAuthorRepo.findByIdAsync(invalidId)\n    .exceptionally(ex -> {\n        // ex — це оригінальне виключення (DatabaseException)\n        if (ex instanceof DatabaseException) {\n            System.err.println(\"Помилка БД: \" + ex.getMessage());\n        }\n        return null;\n    })\n    .join();\n",[2975,13968,13969,13980,13992,13997,14010,14037,14041,14049,14054],{"__ignoreMap":2973},[2978,13970,13971,13973,13975,13977],{"class":2980,"line":2981},[2978,13972,13143],{"class":2988},[2978,13974,3091],{"class":2992},[2978,13976,3579],{"class":3000},[2978,13978,13979],{"class":2992},"(invalidId)\n",[2978,13981,13982,13984,13986,13988,13990],{"class":2980,"line":3007},[2978,13983,12024],{"class":2992},[2978,13985,10781],{"class":3000},[2978,13987,10784],{"class":2992},[2978,13989,3712],{"class":3711},[2978,13991,3715],{"class":2992},[2978,13993,13994],{"class":2980,"line":3026},[2978,13995,13996],{"class":3073},"        // ex — це оригінальне виключення (DatabaseException)\n",[2978,13998,13999,14001,14004,14007],{"class":2980,"line":3045},[2978,14000,6184],{"class":2996},[2978,14002,14003],{"class":2992}," (ex ",[2978,14005,14006],{"class":3711},"instanceof",[2978,14008,14009],{"class":2992}," DatabaseException) {\n",[2978,14011,14012,14014,14016,14018,14020,14022,14024,14027,14029,14031,14033,14035],{"class":2980,"line":3063},[2978,14013,10798],{"class":2988},[2978,14015,3091],{"class":2992},[2978,14017,10803],{"class":2988},[2978,14019,3091],{"class":2992},[2978,14021,3525],{"class":3000},[2978,14023,3135],{"class":2992},[2978,14025,14026],{"class":3608},"\"Помилка БД: \"",[2978,14028,8527],{"class":2992},[2978,14030,10817],{"class":2988},[2978,14032,3091],{"class":2992},[2978,14034,10822],{"class":3000},[2978,14036,3538],{"class":2992},[2978,14038,14039],{"class":2980,"line":3070},[2978,14040,6236],{"class":2992},[2978,14042,14043,14045,14047],{"class":2980,"line":3077},[2978,14044,5473],{"class":2996},[2978,14046,5688],{"class":3711},[2978,14048,3749],{"class":2992},[2978,14050,14051],{"class":2980,"line":3106},[2978,14052,14053],{"class":2992},"    })\n",[2978,14055,14056,14058,14060],{"class":2980,"line":3111},[2978,14057,12024],{"class":2992},[2978,14059,3636],{"class":3000},[2978,14061,3103],{"class":2992},[2964,14063,14064,14065,3436],{},"Або створіть утилітний метод для розгортання ",[2975,14066,13838],{},[2968,14068,14070],{"className":2970,"code":14069,"language":2972,"meta":4161,"style":2973},"public static Throwable unwrapCompletionException(Throwable ex) {\n    if (ex instanceof java.util.concurrent.CompletionException && ex.getCause() != null) {\n        return ex.getCause();\n    }\n    return ex;\n}\n\n// Використання:\ntry {\n    author = asyncAuthorRepo.findByIdAsync(id).join();\n} catch (Exception e) {\n    Throwable cause = unwrapCompletionException(e);\n    if (cause instanceof DatabaseException) {\n        // Обробка помилки БД\n    }\n}\n",[2975,14071,14072,14092,14132,14145,14149,14156,14160,14164,14168,14174,14191,14205,14220,14231,14236,14240],{"__ignoreMap":2973},[2978,14073,14074,14076,14078,14081,14084,14086,14089],{"class":2980,"line":2981},[2978,14075,4294],{"class":3711},[2978,14077,7873],{"class":3711},[2978,14079,14080],{"class":2984}," Throwable",[2978,14082,14083],{"class":3000}," unwrapCompletionException",[2978,14085,3135],{"class":2992},[2978,14087,14088],{"class":2984},"Throwable",[2978,14090,14091],{"class":2992}," ex) {\n",[2978,14093,14094,14096,14098,14100,14103,14105,14107,14109,14112,14114,14116,14119,14121,14123,14125,14128,14130],{"class":2980,"line":3007},[2978,14095,11237],{"class":2996},[2978,14097,14003],{"class":2992},[2978,14099,14006],{"class":3711},[2978,14101,14102],{"class":2988}," java",[2978,14104,3091],{"class":2992},[2978,14106,4392],{"class":2988},[2978,14108,3091],{"class":2992},[2978,14110,14111],{"class":2988},"concurrent",[2978,14113,3091],{"class":2992},[2978,14115,13838],{"class":2988},[2978,14117,14118],{"class":2992}," && ",[2978,14120,10817],{"class":2988},[2978,14122,3091],{"class":2992},[2978,14124,13939],{"class":3000},[2978,14126,14127],{"class":2992},"() != ",[2978,14129,5377],{"class":3711},[2978,14131,5278],{"class":2992},[2978,14133,14134,14136,14139,14141,14143],{"class":2980,"line":3026},[2978,14135,5473],{"class":2996},[2978,14137,14138],{"class":2988}," ex",[2978,14140,3091],{"class":2992},[2978,14142,13939],{"class":3000},[2978,14144,3103],{"class":2992},[2978,14146,14147],{"class":2980,"line":3045},[2978,14148,5307],{"class":2992},[2978,14150,14151,14153],{"class":2980,"line":3063},[2978,14152,3743],{"class":2996},[2978,14154,14155],{"class":2992}," ex;\n",[2978,14157,14158],{"class":2980,"line":3070},[2978,14159,4845],{"class":2992},[2978,14161,14162],{"class":2980,"line":3077},[2978,14163,3067],{"emptyLinePlaceholder":3066},[2978,14165,14166],{"class":2980,"line":3106},[2978,14167,9546],{"class":3073},[2978,14169,14170,14172],{"class":2980,"line":3111},[2978,14171,11324],{"class":2996},[2978,14173,3715],{"class":2992},[2978,14175,14176,14179,14181,14183,14185,14187,14189],{"class":2980,"line":3117},[2978,14177,14178],{"class":2992},"    author = ",[2978,14180,13143],{"class":2988},[2978,14182,3091],{"class":2992},[2978,14184,3579],{"class":3000},[2978,14186,3501],{"class":2992},[2978,14188,3636],{"class":3000},[2978,14190,3103],{"class":2992},[2978,14192,14193,14195,14197,14199,14201,14203],{"class":2980,"line":3157},[2978,14194,11455],{"class":2992},[2978,14196,3935],{"class":2996},[2978,14198,4059],{"class":2992},[2978,14200,11462],{"class":2984},[2978,14202,11465],{"class":2988},[2978,14204,5278],{"class":2992},[2978,14206,14207,14210,14213,14215,14218],{"class":2980,"line":3194},[2978,14208,14209],{"class":2984},"    Throwable",[2978,14211,14212],{"class":2988}," cause",[2978,14214,3016],{"class":2992},[2978,14216,14217],{"class":3000},"unwrapCompletionException",[2978,14219,11988],{"class":2992},[2978,14221,14222,14224,14227,14229],{"class":2980,"line":3219},[2978,14223,11237],{"class":2996},[2978,14225,14226],{"class":2992}," (cause ",[2978,14228,14006],{"class":3711},[2978,14230,14009],{"class":2992},[2978,14232,14233],{"class":2980,"line":3224},[2978,14234,14235],{"class":3073},"        // Обробка помилки БД\n",[2978,14237,14238],{"class":2980,"line":3336},[2978,14239,5307],{"class":2992},[2978,14241,14242],{"class":2980,"line":3341},[2978,14243,4845],{"class":2992},[3458,14245],{},[3465,14247,14249],{"id":14248},"проблема-4-забуті-completablefuture-fire-and-forget","Проблема 4: Забуті CompletableFuture (fire-and-forget)",[2964,14251,14252,14254],{},[3246,14253,13064],{}," Запустити асинхронну операцію і не чекати на її завершення.",[2968,14256,14258],{"className":2970,"code":14257,"language":2972,"meta":2973,"style":2973},"// ❌ НЕБЕЗПЕЧНО: операція може не завершитися до завершення програми\nasyncAuthorRepo.saveAsync(newAuthor);\n// Програма завершується → ExecutorService.shutdown() → потік перервано → INSERT не виконано\n",[2975,14259,14260,14265,14276],{"__ignoreMap":2973},[2978,14261,14262],{"class":2980,"line":2981},[2978,14263,14264],{"class":3073},"// ❌ НЕБЕЗПЕЧНО: операція може не завершитися до завершення програми\n",[2978,14266,14267,14269,14271,14273],{"class":2980,"line":3007},[2978,14268,13143],{"class":2988},[2978,14270,3091],{"class":2992},[2978,14272,4569],{"class":3000},[2978,14274,14275],{"class":2992},"(newAuthor);\n",[2978,14277,14278],{"class":2980,"line":3026},[2978,14279,14280],{"class":3073},"// Програма завершується → ExecutorService.shutdown() → потік перервано → INSERT не виконано\n",[2964,14282,14283,14285],{},[3246,14284,4116],{}," Завжди чекайте на завершення критичних операцій:",[2968,14287,14289],{"className":2970,"code":14288,"language":2972,"meta":2973,"style":2973},"// ✅ ПРАВИЛЬНО: чекаємо на завершення\nasyncAuthorRepo.saveAsync(newAuthor).join();\n\n// Або зберігаємо future для пізнішого очікування\nList\u003CCompletableFuture\u003CVoid>> pendingWrites = new ArrayList\u003C>();\npendingWrites.add(asyncAuthorRepo.saveAsync(author1));\npendingWrites.add(asyncAuthorRepo.saveAsync(author2));\n\n// Перед завершенням програми:\nCompletableFuture.allOf(pendingWrites.toArray(new CompletableFuture[0])).join();\n",[2975,14290,14291,14296,14311,14315,14320,14345,14364,14383,14387,14392],{"__ignoreMap":2973},[2978,14292,14293],{"class":2980,"line":2981},[2978,14294,14295],{"class":3073},"// ✅ ПРАВИЛЬНО: чекаємо на завершення\n",[2978,14297,14298,14300,14302,14304,14307,14309],{"class":2980,"line":3007},[2978,14299,13143],{"class":2988},[2978,14301,3091],{"class":2992},[2978,14303,4569],{"class":3000},[2978,14305,14306],{"class":2992},"(newAuthor).",[2978,14308,3636],{"class":3000},[2978,14310,3103],{"class":2992},[2978,14312,14313],{"class":2980,"line":3026},[2978,14314,3067],{"emptyLinePlaceholder":3066},[2978,14316,14317],{"class":2980,"line":3045},[2978,14318,14319],{"class":3073},"// Або зберігаємо future для пізнішого очікування\n",[2978,14321,14322,14324,14326,14328,14330,14332,14334,14337,14339,14341,14343],{"class":2980,"line":3063},[2978,14323,4477],{"class":2984},[2978,14325,3562],{"class":2992},[2978,14327,3559],{"class":2984},[2978,14329,3562],{"class":2992},[2978,14331,4564],{"class":2984},[2978,14333,4404],{"class":2992},[2978,14335,14336],{"class":2988},"pendingWrites",[2978,14338,3016],{"class":2992},[2978,14340,2997],{"class":2996},[2978,14342,13099],{"class":2984},[2978,14344,13102],{"class":2992},[2978,14346,14347,14349,14351,14353,14355,14357,14359,14361],{"class":2980,"line":3070},[2978,14348,14336],{"class":2988},[2978,14350,3091],{"class":2992},[2978,14352,13138],{"class":3000},[2978,14354,3135],{"class":2992},[2978,14356,13143],{"class":2988},[2978,14358,3091],{"class":2992},[2978,14360,4569],{"class":3000},[2978,14362,14363],{"class":2992},"(author1));\n",[2978,14365,14366,14368,14370,14372,14374,14376,14378,14380],{"class":2980,"line":3077},[2978,14367,14336],{"class":2988},[2978,14369,3091],{"class":2992},[2978,14371,13138],{"class":3000},[2978,14373,3135],{"class":2992},[2978,14375,13143],{"class":2988},[2978,14377,3091],{"class":2992},[2978,14379,4569],{"class":3000},[2978,14381,14382],{"class":2992},"(author2));\n",[2978,14384,14385],{"class":2980,"line":3106},[2978,14386,3067],{"emptyLinePlaceholder":3066},[2978,14388,14389],{"class":2980,"line":3111},[2978,14390,14391],{"class":3073},"// Перед завершенням програми:\n",[2978,14393,14394,14396,14398,14400,14402,14404,14406,14409,14411,14413,14415,14418,14420,14423,14425],{"class":2980,"line":3117},[2978,14395,3559],{"class":2988},[2978,14397,3091],{"class":2992},[2978,14399,8774],{"class":3000},[2978,14401,3135],{"class":2992},[2978,14403,14336],{"class":2988},[2978,14405,3091],{"class":2992},[2978,14407,14408],{"class":3000},"toArray",[2978,14410,3135],{"class":2992},[2978,14412,2997],{"class":2996},[2978,14414,5448],{"class":2984},[2978,14416,14417],{"class":2992},"[",[2978,14419,10166],{"class":3735},[2978,14421,14422],{"class":2992},"])).",[2978,14424,3636],{"class":3000},[2978,14426,3103],{"class":2992},[3938,14428,14429,14445],{},[2964,14430,14431,14434,14435,14438,14439,14441,14442,3436],{},[3246,14432,14433],{},"Best practice для shutdown:"," Створіть метод ",[2975,14436,14437],{},"awaitPendingOperations()",", що чекає на завершення всіх активних ",[2975,14440,3559],{}," перед ",[2975,14443,14444],{},"executor.shutdown()",[2968,14446,14448],{"className":2970,"code":14447,"language":2972,"meta":2973,"style":2973},"public class AsyncRepositoryManager {\n    private final List\u003CCompletableFuture\u003C?>> activeFutures = \n        new CopyOnWriteArrayList\u003C>();\n\n    public \u003CT> CompletableFuture\u003CT> track(CompletableFuture\u003CT> future) {\n        activeFutures.add(future);\n        future.whenComplete((r, ex) -> activeFutures.remove(future));\n        return future;\n    }\n\n    public void awaitAll() {\n        CompletableFuture.allOf(\n            activeFutures.toArray(new CompletableFuture[0])\n        ).join();\n    }\n}\n",[2975,14449,14450,14461,14485,14494,14498,14533,14545,14570,14577,14581,14585,14596,14606,14628,14637,14641],{"__ignoreMap":2973},[2978,14451,14452,14454,14456,14459],{"class":2980,"line":2981},[2978,14453,4294],{"class":3711},[2978,14455,5086],{"class":3711},[2978,14457,14458],{"class":2984}," AsyncRepositoryManager",[2978,14460,3715],{"class":2992},[2978,14462,14463,14465,14467,14470,14472,14474,14476,14478,14480,14483],{"class":2980,"line":3007},[2978,14464,6651],{"class":3711},[2978,14466,5144],{"class":3711},[2978,14468,14469],{"class":2984}," List",[2978,14471,3562],{"class":2992},[2978,14473,3559],{"class":2984},[2978,14475,3562],{"class":2992},[2978,14477,9607],{"class":3711},[2978,14479,4404],{"class":2992},[2978,14481,14482],{"class":2988},"activeFutures",[2978,14484,9666],{"class":2992},[2978,14486,14487,14489,14492],{"class":2980,"line":3026},[2978,14488,12679],{"class":2996},[2978,14490,14491],{"class":2984}," CopyOnWriteArrayList",[2978,14493,13102],{"class":2992},[2978,14495,14496],{"class":2980,"line":3045},[2978,14497,3067],{"emptyLinePlaceholder":3066},[2978,14499,14500,14502,14504,14506,14508,14510,14512,14514,14516,14519,14521,14523,14525,14527,14529,14531],{"class":2980,"line":3063},[2978,14501,5445],{"class":3711},[2978,14503,6133],{"class":2992},[2978,14505,4150],{"class":2984},[2978,14507,3567],{"class":2992},[2978,14509,3559],{"class":2984},[2978,14511,3562],{"class":2992},[2978,14513,4150],{"class":2984},[2978,14515,3567],{"class":2992},[2978,14517,14518],{"class":3000},"track",[2978,14520,3135],{"class":2992},[2978,14522,3559],{"class":2984},[2978,14524,3562],{"class":2992},[2978,14526,4150],{"class":2984},[2978,14528,3567],{"class":2992},[2978,14530,3696],{"class":2988},[2978,14532,5278],{"class":2992},[2978,14534,14535,14538,14540,14542],{"class":2980,"line":3070},[2978,14536,14537],{"class":2988},"        activeFutures",[2978,14539,3091],{"class":2992},[2978,14541,13138],{"class":3000},[2978,14543,14544],{"class":2992},"(future);\n",[2978,14546,14547,14550,14552,14554,14557,14559,14562,14564,14567],{"class":2980,"line":3077},[2978,14548,14549],{"class":2988},"        future",[2978,14551,3091],{"class":2992},[2978,14553,11212],{"class":3000},[2978,14555,14556],{"class":2992},"((r, ex) ",[2978,14558,3712],{"class":3711},[2978,14560,14561],{"class":2988}," activeFutures",[2978,14563,3091],{"class":2992},[2978,14565,14566],{"class":3000},"remove",[2978,14568,14569],{"class":2992},"(future));\n",[2978,14571,14572,14574],{"class":2980,"line":3106},[2978,14573,5473],{"class":2996},[2978,14575,14576],{"class":2992}," future;\n",[2978,14578,14579],{"class":2980,"line":3111},[2978,14580,5307],{"class":2992},[2978,14582,14583],{"class":2980,"line":3117},[2978,14584,3067],{"emptyLinePlaceholder":3066},[2978,14586,14587,14589,14591,14594],{"class":2980,"line":3157},[2978,14588,5445],{"class":3711},[2978,14590,6304],{"class":2984},[2978,14592,14593],{"class":3000}," awaitAll",[2978,14595,5561],{"class":2992},[2978,14597,14598,14600,14602,14604],{"class":2980,"line":3194},[2978,14599,8629],{"class":2988},[2978,14601,3091],{"class":2992},[2978,14603,8774],{"class":3000},[2978,14605,7004],{"class":2992},[2978,14607,14608,14611,14613,14615,14617,14619,14621,14623,14625],{"class":2980,"line":3219},[2978,14609,14610],{"class":2988},"            activeFutures",[2978,14612,3091],{"class":2992},[2978,14614,14408],{"class":3000},[2978,14616,3135],{"class":2992},[2978,14618,2997],{"class":2996},[2978,14620,5448],{"class":2984},[2978,14622,14417],{"class":2992},[2978,14624,10166],{"class":3735},[2978,14626,14627],{"class":2992},"])\n",[2978,14629,14630,14633,14635],{"class":2980,"line":3224},[2978,14631,14632],{"class":2992},"        ).",[2978,14634,3636],{"class":3000},[2978,14636,3103],{"class":2992},[2978,14638,14639],{"class":2980,"line":3336},[2978,14640,5307],{"class":2992},[2978,14642,14643],{"class":2980,"line":3341},[2978,14644,4845],{"class":2992},[3458,14646],{},[2959,14648,14650],{"id":14649},"best-practices-коли-використовувати-асинхронність","Best Practices: Коли використовувати асинхронність",[2964,14652,14653],{},"Асинхронність не завжди є оптимальним рішенням. Розглянемо, коли вона дає реальну перевагу.",[3465,14655,14657],{"id":14656},"використовуйте-асинхронність-коли","✅ Використовуйте асинхронність коли:",[14659,14660,14661,14674,14686,14691],"card-group",{},[14662,14663,14666,14669],"card",{"icon":14664,"title":14665},"i-heroicons-arrows-right-left","Паралельні незалежні запити",[2964,14667,14668],{},"Завантаження автора, жанру та рейтингу для однієї книги — три незалежних SELECT, що можуть виконуватися одночасно.",[2964,14670,14671,14673],{},[3246,14672,9237],{}," 2–3× для 2–3 запитів.",[14662,14675,14678,14681],{"icon":14676,"title":14677},"i-heroicons-queue-list","Batch-операції",[2964,14679,14680],{},"Завантаження 100 авторів для каталогу — кожен SELECT виконується у своєму потоці.",[2964,14682,14683,14685],{},[3246,14684,9237],{}," залежить від розміру пулу (10 потоків → 10× швидше).",[14662,14687,14690],{"icon":14688,"title":14689},"i-heroicons-cloud","I/O-bound операції","Запити до віддаленої БД з високою network latency (50–200ms). Потік блокується на мережевому очікуванні — асинхронність дозволяє використати цей час для інших запитів.",[14662,14692,14695],{"icon":14693,"title":14694},"i-heroicons-cursor-arrow-rays","Reactive UI","Веб-додаток або desktop UI, де блокування основного потоку призводить до «заморожування» інтерфейсу.",[3465,14697,14699],{"id":14698},"не-використовуйте-асинхронність-коли","❌ НЕ використовуйте асинхронність коли:",[14659,14701,14702,14714,14729,14744],{},[14662,14703,14706,14709],{"icon":14704,"title":14705},"i-heroicons-arrow-right","Послідовні залежні запити",[2964,14707,14708],{},"Завантажити книгу → завантажити автора книги → завантажити біографію автора. Кожен запит залежить від попереднього — асинхронність не дає прискорення.",[2964,14710,14711,14713],{},[3246,14712,4116],{}," Використовуйте JOIN-запит або синхронний код.",[14662,14715,14718,14724],{"icon":14716,"title":14717},"i-heroicons-bolt","Малі швидкі запити",[2964,14719,14720,14721,14723],{},"SELECT за первинним ключем з індексом виконується за 1–5ms. Overhead на створення ",[2975,14722,3559],{}," та перемикання потоків (0.5–1ms) може бути порівнянним з часом самого запиту.",[2964,14725,14726,14728],{},[3246,14727,4116],{}," Синхронний код простіший і швидший.",[14662,14730,14733,14736],{"icon":14731,"title":14732},"i-heroicons-lock-closed","Транзакційні операції",[2964,14734,14735],{},"Кілька INSERT/UPDATE у межах однієї транзакції мають виконуватися послідовно в одному Connection. Асинхронність ускладнює координацію без реальної переваги.",[2964,14737,14738,14740,14741,3091],{},[3246,14739,4116],{}," Синхронний ",[2975,14742,14743],{},"UnitOfWork.commit()",[14662,14745,14748],{"icon":14746,"title":14747},"i-heroicons-server-stack","Обмежений пул з'єднань","Якщо пул містить 2–3 Connection (типово для embedded БД або SQLite), паралельне виконання обмежене розміром пулу. Асинхронність додає складність без прискорення.",[3458,14750],{},[2959,14752,14754],{"id":14753},"порівняння-підходів-синхронний-vs-асинхронний","Порівняння підходів: Синхронний vs Асинхронний",[2964,14756,14757],{},"Підсумуємо переваги та недоліки обох підходів у табличній формі:",[3838,14759,14760,14773],{},[3841,14761,14762],{},[3844,14763,14764,14767,14770],{},[3847,14765,14766],{},"Критерій",[3847,14768,14769],{},"Синхронний (JDBC)",[3847,14771,14772],{},"Асинхронний (CompletableFuture)",[3854,14774,14775,14788,14801,14814,14826,14839,14852,14865],{},[3844,14776,14777,14782,14785],{},[3859,14778,14779],{},[3246,14780,14781],{},"Складність коду",[3859,14783,14784],{},"⭐⭐⭐⭐⭐ Простий, лінійний",[3859,14786,14787],{},"⭐⭐ Складніший, вимагає розуміння CompletableFuture",[3844,14789,14790,14795,14798],{},[3859,14791,14792],{},[3246,14793,14794],{},"Продуктивність (незалежні запити)",[3859,14796,14797],{},"⭐⭐ Послідовне виконання",[3859,14799,14800],{},"⭐⭐⭐⭐⭐ Паралельне виконання (2–10× швидше)",[3844,14802,14803,14808,14811],{},[3859,14804,14805],{},[3246,14806,14807],{},"Продуктивність (залежні запити)",[3859,14809,14810],{},"⭐⭐⭐⭐ Без overhead",[3859,14812,14813],{},"⭐⭐⭐ Overhead на CompletableFuture",[3844,14815,14816,14820,14823],{},[3859,14817,14818],{},[3246,14819,2514],{},[3859,14821,14822],{},"⭐⭐⭐⭐⭐ Природна підтримка",[3859,14824,14825],{},"⭐⭐ Вимагає координації (AsyncUnitOfWork)",[3844,14827,14828,14833,14836],{},[3859,14829,14830],{},[3246,14831,14832],{},"Обробка помилок",[3859,14834,14835],{},"⭐⭐⭐⭐⭐ try-catch",[3859,14837,14838],{},"⭐⭐⭐ exceptionally, handle",[3844,14840,14841,14846,14849],{},[3859,14842,14843],{},[3246,14844,14845],{},"Debugging",[3859,14847,14848],{},"⭐⭐⭐⭐⭐ Лінійний stack trace",[3859,14850,14851],{},"⭐⭐ Складний stack trace (багато потоків)",[3844,14853,14854,14859,14862],{},[3859,14855,14856],{},[3246,14857,14858],{},"Використання ресурсів",[3859,14860,14861],{},"⭐⭐⭐ Блокує потік під час I/O",[3859,14863,14864],{},"⭐⭐⭐⭐ Потік вільний під час I/O",[3844,14866,14867,14872,14875],{},[3859,14868,14869],{},[3246,14870,14871],{},"Масштабованість",[3859,14873,14874],{},"⭐⭐ Обмежена кількістю потоків",[3859,14876,14877],{},"⭐⭐⭐⭐ Висока (тисячі одночасних запитів)",[3938,14879,14880,14885,14888,14987],{},[2964,14881,14882],{},[3246,14883,14884],{},"Гібридний підхід (рекомендовано для production):",[2964,14886,14887],{},"Використовуйте синхронний код для більшості операцій, асинхронний — для критичних за продуктивністю місць:",[2968,14889,14891],{"className":2970,"code":14890,"language":2972,"meta":2973,"style":2973},"// Синхронний код для простих операцій\nAuthor author = authorRepo.findById(id).orElseThrow();\n\n// Асинхронний код для паралельних запитів\nCompletableFuture\u003CAuthor> futureAuthor = asyncAuthorRepo.findByIdAsync(id1);\nCompletableFuture\u003CGenre> futureGenre = asyncGenreRepo.findByIdAsync(id2);\nCompletableFuture.allOf(futureAuthor, futureGenre).join();\n",[2975,14892,14893,14898,14918,14922,14927,14949,14972],{"__ignoreMap":2973},[2978,14894,14895],{"class":2980,"line":2981},[2978,14896,14897],{"class":3073},"// Синхронний код для простих операцій\n",[2978,14899,14900,14902,14904,14906,14908,14910,14912,14914,14916],{"class":2980,"line":3007},[2978,14901,3120],{"class":2984},[2978,14903,3123],{"class":2988},[2978,14905,3016],{"class":2992},[2978,14907,3128],{"class":2988},[2978,14909,3091],{"class":2992},[2978,14911,3094],{"class":3000},[2978,14913,3501],{"class":2992},[2978,14915,3100],{"class":3000},[2978,14917,3103],{"class":2992},[2978,14919,14920],{"class":2980,"line":3026},[2978,14921,3067],{"emptyLinePlaceholder":3066},[2978,14923,14924],{"class":2980,"line":3045},[2978,14925,14926],{"class":3073},"// Асинхронний код для паралельних запитів\n",[2978,14928,14929,14931,14933,14935,14937,14939,14941,14943,14945,14947],{"class":2980,"line":3063},[2978,14930,3559],{"class":2984},[2978,14932,3562],{"class":2992},[2978,14934,3120],{"class":2984},[2978,14936,3567],{"class":2992},[2978,14938,3570],{"class":2988},[2978,14940,3016],{"class":2992},[2978,14942,13143],{"class":2988},[2978,14944,3091],{"class":2992},[2978,14946,3579],{"class":3000},[2978,14948,13632],{"class":2992},[2978,14950,14951,14953,14955,14957,14959,14961,14963,14965,14967,14969],{"class":2980,"line":3070},[2978,14952,3559],{"class":2984},[2978,14954,3562],{"class":2992},[2978,14956,3160],{"class":2984},[2978,14958,3567],{"class":2992},[2978,14960,8685],{"class":2988},[2978,14962,3016],{"class":2992},[2978,14964,13682],{"class":2988},[2978,14966,3091],{"class":2992},[2978,14968,3579],{"class":3000},[2978,14970,14971],{"class":2992},"(id2);\n",[2978,14973,14974,14976,14978,14980,14983,14985],{"class":2980,"line":3077},[2978,14975,3559],{"class":2988},[2978,14977,3091],{"class":2992},[2978,14979,8774],{"class":3000},[2978,14981,14982],{"class":2992},"(futureAuthor, futureGenre).",[2978,14984,3636],{"class":3000},[2978,14986,3103],{"class":2992},[2964,14988,14989],{},"Це дає баланс між простотою та продуктивністю.",[3458,14991],{},[2959,14993,14995],{"id":14994},"альтернативи-reactive-streams-та-r2dbc","Альтернативи: Reactive Streams та R2DBC",[2964,14997,14998],{},"Наш підхід (ExecutorService + CompletableFuture) є найпростішим способом додати асинхронність до JDBC. Але існують більш досконалі альтернативи для reactive-додатків.",[3465,15000,15002],{"id":15001},"r2dbc-reactive-relational-database-connectivity","R2DBC (Reactive Relational Database Connectivity)",[2964,15004,15005,15008,15009,15012],{},[3246,15006,15007],{},"R2DBC"," — це специфікація для ",[3246,15010,15011],{},"реактивного"," доступу до реляційних БД, що з'явилася у 2018 році як альтернатива JDBC.",[2964,15014,15015],{},[3246,15016,15017],{},"Ключові відмінності від JDBC:",[3838,15019,15020,15029],{},[3841,15021,15022],{},[3844,15023,15024,15027],{},[3847,15025,15026],{},"JDBC",[3847,15028,15007],{},[3854,15030,15031,15039,15052,15060],{},[3844,15032,15033,15036],{},[3859,15034,15035],{},"Синхронний (blocking)",[3859,15037,15038],{},"Асинхронний (non-blocking)",[3844,15040,15041,15046],{},[3859,15042,15043,15045],{},[2975,15044,4032],{}," (pull-based)",[3859,15047,15048,15051],{},[2975,15049,15050],{},"Publisher\u003CRow>"," (push-based)",[3844,15053,15054,15057],{},[3859,15055,15056],{},"Один результат на запит",[3859,15058,15059],{},"Stream результатів",[3844,15061,15062,15067],{},[3859,15063,15064,15066],{},[2975,15065,3985],{}," прив'язаний до потоку",[3859,15068,15069,15071],{},[2975,15070,3985],{}," не прив'язаний до потоку",[2964,15073,15074],{},[3246,15075,15076],{},"Приклад R2DBC коду:",[2968,15078,15080],{"className":2970,"code":15079,"language":2972,"meta":2973,"style":2973},"// R2DBC: повністю асинхронний API\nMono\u003CAuthor> authorMono = client\n    .sql(\"SELECT * FROM authors WHERE id = :id\")\n    .bind(\"id\", authorId)\n    .map(row -> new Author(\n        row.get(\"id\", UUID.class),\n        row.get(\"first_name\", String.class),\n        row.get(\"last_name\", String.class)\n    ))\n    .one(); // повертає Mono\u003CAuthor> (Project Reactor)\n\n// Підписка на результат (non-blocking)\nauthorMono.subscribe(author -> \n    System.out.println(\"Завантажено: \" + author.getFirstName())\n);\n",[2975,15081,15082,15087,15104,15119,15134,15152,15177,15200,15223,15228,15240,15244,15249,15264,15290],{"__ignoreMap":2973},[2978,15083,15084],{"class":2980,"line":2981},[2978,15085,15086],{"class":3073},"// R2DBC: повністю асинхронний API\n",[2978,15088,15089,15092,15094,15096,15098,15101],{"class":2980,"line":3007},[2978,15090,15091],{"class":2984},"Mono",[2978,15093,3562],{"class":2992},[2978,15095,3120],{"class":2984},[2978,15097,3567],{"class":2992},[2978,15099,15100],{"class":2988},"authorMono",[2978,15102,15103],{"class":2992}," = client\n",[2978,15105,15106,15108,15111,15113,15116],{"class":2980,"line":3026},[2978,15107,12024],{"class":2992},[2978,15109,15110],{"class":3000},"sql",[2978,15112,3135],{"class":2992},[2978,15114,15115],{"class":3608},"\"SELECT * FROM authors WHERE id = :id\"",[2978,15117,15118],{"class":2992},")\n",[2978,15120,15121,15123,15126,15128,15131],{"class":2980,"line":3045},[2978,15122,12024],{"class":2992},[2978,15124,15125],{"class":3000},"bind",[2978,15127,3135],{"class":2992},[2978,15129,15130],{"class":3608},"\"id\"",[2978,15132,15133],{"class":2992},", authorId)\n",[2978,15135,15136,15138,15141,15144,15146,15148,15150],{"class":2980,"line":3063},[2978,15137,12024],{"class":2992},[2978,15139,15140],{"class":3000},"map",[2978,15142,15143],{"class":2992},"(row ",[2978,15145,3712],{"class":3711},[2978,15147,10457],{"class":2996},[2978,15149,10842],{"class":3000},[2978,15151,7004],{"class":2992},[2978,15153,15154,15157,15159,15161,15163,15165,15167,15169,15171,15174],{"class":2980,"line":3070},[2978,15155,15156],{"class":2988},"        row",[2978,15158,3091],{"class":2992},[2978,15160,13157],{"class":3000},[2978,15162,3135],{"class":2992},[2978,15164,15130],{"class":3608},[2978,15166,4307],{"class":2992},[2978,15168,6622],{"class":2988},[2978,15170,3091],{"class":2992},[2978,15172,15173],{"class":2988},"class",[2978,15175,15176],{"class":2992},"),\n",[2978,15178,15179,15181,15183,15185,15187,15190,15192,15194,15196,15198],{"class":2980,"line":3077},[2978,15180,15156],{"class":2988},[2978,15182,3091],{"class":2992},[2978,15184,13157],{"class":3000},[2978,15186,3135],{"class":2992},[2978,15188,15189],{"class":3608},"\"first_name\"",[2978,15191,4307],{"class":2992},[2978,15193,3691],{"class":2988},[2978,15195,3091],{"class":2992},[2978,15197,15173],{"class":2988},[2978,15199,15176],{"class":2992},[2978,15201,15202,15204,15206,15208,15210,15213,15215,15217,15219,15221],{"class":2980,"line":3106},[2978,15203,15156],{"class":2988},[2978,15205,3091],{"class":2992},[2978,15207,13157],{"class":3000},[2978,15209,3135],{"class":2992},[2978,15211,15212],{"class":3608},"\"last_name\"",[2978,15214,4307],{"class":2992},[2978,15216,3691],{"class":2988},[2978,15218,3091],{"class":2992},[2978,15220,15173],{"class":2988},[2978,15222,15118],{"class":2992},[2978,15224,15225],{"class":2980,"line":3111},[2978,15226,15227],{"class":2992},"    ))\n",[2978,15229,15230,15232,15235,15237],{"class":2980,"line":3117},[2978,15231,12024],{"class":2992},[2978,15233,15234],{"class":3000},"one",[2978,15236,3639],{"class":2992},[2978,15238,15239],{"class":3073},"// повертає Mono\u003CAuthor> (Project Reactor)\n",[2978,15241,15242],{"class":2980,"line":3157},[2978,15243,3067],{"emptyLinePlaceholder":3066},[2978,15245,15246],{"class":2980,"line":3194},[2978,15247,15248],{"class":3073},"// Підписка на результат (non-blocking)\n",[2978,15250,15251,15253,15255,15258,15260,15262],{"class":2980,"line":3219},[2978,15252,15100],{"class":2988},[2978,15254,3091],{"class":2992},[2978,15256,15257],{"class":3000},"subscribe",[2978,15259,13656],{"class":2992},[2978,15261,3712],{"class":3711},[2978,15263,10127],{"class":2992},[2978,15265,15266,15268,15270,15272,15274,15276,15278,15280,15282,15284,15286,15288],{"class":2980,"line":3224},[2978,15267,13894],{"class":2988},[2978,15269,3091],{"class":2992},[2978,15271,3520],{"class":2988},[2978,15273,3091],{"class":2992},[2978,15275,3525],{"class":3000},[2978,15277,3135],{"class":2992},[2978,15279,8524],{"class":3608},[2978,15281,8527],{"class":2992},[2978,15283,3530],{"class":2988},[2978,15285,3091],{"class":2992},[2978,15287,3535],{"class":3000},[2978,15289,10981],{"class":2992},[2978,15291,15292],{"class":2980,"line":3336},[2978,15293,3612],{"class":2992},[2964,15295,15296],{},[3246,15297,15298],{},"Переваги R2DBC:",[4854,15300,15301,15304,15307,15310],{},[4083,15302,15303],{},"Справжня асинхронність на рівні протоколу БД (не емуляція через ExecutorService)",[4083,15305,15306],{},"Backpressure (контроль швидкості споживання даних)",[4083,15308,15309],{},"Інтеграція з Project Reactor та RxJava",[4083,15311,15312],{},"Ефективне використання ресурсів (один потік може обслуговувати тисячі з'єднань)",[2964,15314,15315],{},[3246,15316,15317],{},"Недоліки R2DBC:",[4854,15319,15320,15323,15326,15329],{},[4083,15321,15322],{},"Складніший API (вимагає розуміння Reactive Streams)",[4083,15324,15325],{},"Обмежена підтримка СУБД (PostgreSQL, MySQL, H2, MSSQL — є; Oracle, DB2 — немає)",[4083,15327,15328],{},"Відсутність стандартних ORM (Hibernate не підтримує R2DBC)",[4083,15330,15331],{},"Складніша обробка транзакцій",[4106,15333,15334,15339,15350,15355],{},[2964,15335,15336],{},[3246,15337,15338],{},"Коли використовувати R2DBC:",[4854,15340,15341,15344,15347],{},[4083,15342,15343],{},"Високонавантажені системи з тисячами одночасних запитів (WebFlux, reactive microservices)",[4083,15345,15346],{},"Streaming великих датасетів (мільйони рядків)",[4083,15348,15349],{},"Інтеграція з іншими reactive-компонентами (Kafka, WebSocket)",[2964,15351,15352],{},[3246,15353,15354],{},"Коли залишитися на JDBC:",[4854,15356,15357,15360,15363,15366],{},[4083,15358,15359],{},"Традиційні Spring MVC додатки",[4083,15361,15362],{},"Використання Hibernate/JPA",[4083,15364,15365],{},"Команда не має досвіду з reactive programming",[4083,15367,15368],{},"БД не підтримує R2DBC",[3458,15370],{},[2959,15372,15374],{"id":15373},"висновки","Висновки",[2964,15376,15377],{},"Асинхронність у JDBC є потужним інструментом оптимізації продуктивності, але вимагає ретельного проектування. Ключові висновки:",[15379,15380,15381,15385,15393,15397,15400,15404,15413,15416,15435,15439,15442,15446],"steps",{},[3465,15382,15384],{"id":15383},"розуміння-обмежень-jdbc","Розуміння обмежень JDBC",[2964,15386,15387,15388,15390,15391,3091],{},"JDBC API є повністю синхронним. Ми не можемо зробити сам ",[2975,15389,3455],{}," асинхронним, але можемо виконувати синхронні операції у пулі потоків через ",[2975,15392,3559],{},[3465,15394,15396],{"id":15395},"паралельне-виконання-незалежних-запитів","Паралельне виконання незалежних запитів",[2964,15398,15399],{},"Найбільша перевага асинхронності — можливість виконувати кілька незалежних SELECT одночасно. Прискорення: 2–10× залежно від кількості запитів та розміру пулу потоків.",[3465,15401,15403],{"id":15402},"координація-транзакцій","Координація транзакцій",[2964,15405,15406,15407,15409,15410,15412],{},"JDBC-транзакція прив'язана до одного Connection і одного потоку. Для транзакційних операцій використовуйте ",[2975,15408,12138],{}," з синхронним ",[2975,15411,12142],{}," у одному потоці.",[3465,15414,14832],{"id":15415},"обробка-помилок",[2964,15417,15418,15420,15421,15423,15424,11129,15426,15428,15429,15432,15433,3091],{},[2975,15419,3559],{}," обгортає виключення у ",[2975,15422,13838],{},". Використовуйте ",[2975,15425,10781],{},[2975,15427,10900],{}," для обробки помилок на рівні future, а не ",[2975,15430,15431],{},"try-catch"," навколо ",[2975,15434,3919],{},[3465,15436,15438],{"id":15437},"баланс-складності-та-продуктивності","Баланс складності та продуктивності",[2964,15440,15441],{},"Асинхронність додає складність. Використовуйте її лише там, де вона дає реальну перевагу (паралельні запити, I/O-bound операції). Для простих операцій синхронний код є кращим вибором.",[3465,15443,15445],{"id":15444},"альтернативи-для-reactive-додатків","Альтернативи для reactive-додатків",[2964,15447,15448],{},"Якщо ваш додаток повністю reactive (Spring WebFlux, Vert.x), розгляньте R2DBC замість JDBC + CompletableFuture. R2DBC надає справжню асинхронність на рівні протоколу БД.",[3458,15450],{},[2959,15452,15454],{"id":15453},"практичні-рекомендації","Практичні рекомендації",[14659,15456,15457,15475,15558,15652],{},[14662,15458,15461,15466,15472],{"icon":15459,"title":15460},"i-heroicons-cog-6-tooth","Розмір пулу потоків",[2964,15462,15463,15464],{},"Для I/O-bound операцій (JDBC): ",[2975,15465,6386],{},[2964,15467,15468,15469],{},"Для CPU-bound операцій: ",[2975,15470,15471],{},"CPU_CORES + 1",[2964,15473,15474],{},"Ніколи не робіть пул потоків більшим за пул з'єднань.",[14662,15476,15479,15482],{"icon":15477,"title":15478},"i-heroicons-chart-bar","Моніторинг",[2964,15480,15481],{},"Логуйте час виконання асинхронних операцій:",[2968,15483,15485],{"className":2970,"code":15484,"language":2972,"meta":2973,"style":2973},"long start = System.currentTimeMillis();\nfuture.whenComplete((r, ex) -> {\n    long duration = System.currentTimeMillis() - start;\n    logger.info(\"Query completed in {}ms\", duration);\n});\n",[2975,15486,15487,15504,15518,15536,15554],{"__ignoreMap":2973},[2978,15488,15489,15491,15494,15496,15498,15500,15502],{"class":2980,"line":2981},[2978,15490,10380],{"class":2984},[2978,15492,15493],{"class":2988}," start",[2978,15495,3016],{"class":2992},[2978,15497,3515],{"class":2988},[2978,15499,3091],{"class":2992},[2978,15501,8377],{"class":3000},[2978,15503,3103],{"class":2992},[2978,15505,15506,15508,15510,15512,15514,15516],{"class":2980,"line":3007},[2978,15507,3696],{"class":2988},[2978,15509,3091],{"class":2992},[2978,15511,11212],{"class":3000},[2978,15513,14556],{"class":2992},[2978,15515,3712],{"class":3711},[2978,15517,3715],{"class":2992},[2978,15519,15520,15522,15525,15527,15529,15531,15533],{"class":2980,"line":3026},[2978,15521,9882],{"class":2984},[2978,15523,15524],{"class":2988}," duration",[2978,15526,3016],{"class":2992},[2978,15528,3515],{"class":2988},[2978,15530,3091],{"class":2992},[2978,15532,8377],{"class":3000},[2978,15534,15535],{"class":2992},"() - start;\n",[2978,15537,15538,15541,15543,15546,15548,15551],{"class":2980,"line":3045},[2978,15539,15540],{"class":2988},"    logger",[2978,15542,3091],{"class":2992},[2978,15544,15545],{"class":3000},"info",[2978,15547,3135],{"class":2992},[2978,15549,15550],{"class":3608},"\"Query completed in {}ms\"",[2978,15552,15553],{"class":2992},", duration);\n",[2978,15555,15556],{"class":2980,"line":3063},[2978,15557,3754],{"class":2992},[14662,15559,15562,15565],{"icon":15560,"title":15561},"i-heroicons-clock","Timeout",[2964,15563,15564],{},"Завжди встановлюйте timeout для асинхронних операцій:",[2968,15566,15568],{"className":2970,"code":15567,"language":2972,"meta":2973,"style":2973},"future.orTimeout(5, TimeUnit.SECONDS)\n    .exceptionally(ex -> {\n        if (ex instanceof TimeoutException) {\n            logger.warn(\"Query timeout\");\n        }\n        return null;\n    });\n",[2975,15569,15570,15596,15608,15619,15636,15640,15648],{"__ignoreMap":2973},[2978,15571,15572,15574,15576,15579,15581,15584,15586,15589,15591,15594],{"class":2980,"line":2981},[2978,15573,3696],{"class":2988},[2978,15575,3091],{"class":2992},[2978,15577,15578],{"class":3000},"orTimeout",[2978,15580,3135],{"class":2992},[2978,15582,15583],{"class":3735},"5",[2978,15585,4307],{"class":2992},[2978,15587,15588],{"class":2988},"TimeUnit",[2978,15590,3091],{"class":2992},[2978,15592,15593],{"class":2988},"SECONDS",[2978,15595,15118],{"class":2992},[2978,15597,15598,15600,15602,15604,15606],{"class":2980,"line":3007},[2978,15599,12024],{"class":2992},[2978,15601,10781],{"class":3000},[2978,15603,10784],{"class":2992},[2978,15605,3712],{"class":3711},[2978,15607,3715],{"class":2992},[2978,15609,15610,15612,15614,15616],{"class":2980,"line":3026},[2978,15611,6184],{"class":2996},[2978,15613,14003],{"class":2992},[2978,15615,14006],{"class":3711},[2978,15617,15618],{"class":2992}," TimeoutException) {\n",[2978,15620,15621,15624,15626,15629,15631,15634],{"class":2980,"line":3045},[2978,15622,15623],{"class":2988},"            logger",[2978,15625,3091],{"class":2992},[2978,15627,15628],{"class":3000},"warn",[2978,15630,3135],{"class":2992},[2978,15632,15633],{"class":3608},"\"Query timeout\"",[2978,15635,3612],{"class":2992},[2978,15637,15638],{"class":2980,"line":3063},[2978,15639,6236],{"class":2992},[2978,15641,15642,15644,15646],{"class":2980,"line":3070},[2978,15643,5473],{"class":2996},[2978,15645,5688],{"class":3711},[2978,15647,3749],{"class":2992},[2978,15649,15650],{"class":2980,"line":3077},[2978,15651,12101],{"class":2992},[14662,15653,15656,15659],{"icon":15654,"title":15655},"i-heroicons-power","Graceful Shutdown",[2964,15657,15658],{},"Чекайте на завершення всіх активних операцій перед shutdown:",[2968,15660,15662],{"className":2970,"code":15661,"language":2972,"meta":2973,"style":2973},"executor.shutdown();\nif (!executor.awaitTermination(30, TimeUnit.SECONDS)) {\n    executor.shutdownNow();\n}\n",[2975,15663,15664,15674,15705,15717],{"__ignoreMap":2973},[2978,15665,15666,15668,15670,15672],{"class":2980,"line":2981},[2978,15667,5299],{"class":2988},[2978,15669,3091],{"class":2992},[2978,15671,6331],{"class":3000},[2978,15673,3103],{"class":2992},[2978,15675,15676,15679,15682,15684,15686,15689,15691,15694,15696,15698,15700,15702],{"class":2980,"line":3007},[2978,15677,15678],{"class":2996},"if",[2978,15680,15681],{"class":2992}," (!",[2978,15683,5299],{"class":2988},[2978,15685,3091],{"class":2992},[2978,15687,15688],{"class":3000},"awaitTermination",[2978,15690,3135],{"class":2992},[2978,15692,15693],{"class":3735},"30",[2978,15695,4307],{"class":2992},[2978,15697,15588],{"class":2988},[2978,15699,3091],{"class":2992},[2978,15701,15593],{"class":2988},[2978,15703,15704],{"class":2992},")) {\n",[2978,15706,15707,15710,15712,15715],{"class":2980,"line":3026},[2978,15708,15709],{"class":2988},"    executor",[2978,15711,3091],{"class":2992},[2978,15713,15714],{"class":3000},"shutdownNow",[2978,15716,3103],{"class":2992},[2978,15718,15719],{"class":2980,"line":3045},[2978,15720,4845],{"class":2992},[3458,15722],{},[2959,15724,15726],{"id":15725},"подальше-читання","Подальше читання",[14659,15728,15729,15739,15748,15764],{},[14662,15730,15733,15736],{"icon":15731,"title":15732},"i-heroicons-book-open","Java Concurrency in Practice",[2964,15734,15735],{},"Brian Goetz et al., 2006",[2964,15737,15738],{},"Фундаментальна книга про багатопоточність у Java. Розділи 6–8 присвячені ExecutorService та Future.",[14662,15740,15742,15745],{"icon":14716,"title":15741},"Reactive Programming with RxJava",[2964,15743,15744],{},"Tomasz Nurkiewicz, Ben Christensen, 2016",[2964,15746,15747],{},"Детальний огляд reactive patterns. Глава 4 — про backpressure та координацію асинхронних операцій.",[14662,15749,15752,15761],{"icon":15750,"title":15751},"i-heroicons-document-text","R2DBC Specification",[2964,15753,15754],{},[15755,15756,15760],"a",{"href":15757,"rel":15758},"https://r2dbc.io",[15759],"nofollow","r2dbc.io",[2964,15762,15763],{},"Офіційна специфікація R2DBC. Порівняння з JDBC, приклади коду, підтримувані СУБД.",[14662,15765,15768,15775],{"icon":15766,"title":15767},"i-heroicons-beaker","Project Reactor Reference",[2964,15769,15770],{},[15755,15771,15774],{"href":15772,"rel":15773},"https://projectreactor.io",[15759],"projectreactor.io",[2964,15776,15777],{},"Документація Project Reactor (Mono, Flux). Використовується у Spring WebFlux та R2DBC.",[3458,15779],{},[2964,15781,15782,15785],{},[3246,15783,15784],{},"Наступна стаття серії:"," Specification Pattern для композиції складних запитів (стаття 20).",[2964,15787,15788,15791],{},[3246,15789,15790],{},"Попередня стаття:"," Generic Repository з Reflection (стаття 19).",[15793,15794,15795],"style",{},"html pre.shiki code .sN1BT, html code.shiki .sN1BT{--shiki-light:#267F99;--shiki-default:#4EC9B0;--shiki-dark:#4EC9B0}html pre.shiki code .siwwj, html code.shiki .siwwj{--shiki-light:#001080;--shiki-default:#9CDCFE;--shiki-dark:#9CDCFE}html pre.shiki code .sHH4Y, html code.shiki .sHH4Y{--shiki-light:#000000;--shiki-default:#D4D4D4;--shiki-dark:#D4D4D4}html pre.shiki code .sCDza, html code.shiki .sCDza{--shiki-light:#AF00DB;--shiki-default:#CE92A4;--shiki-dark:#CE92A4}html pre.shiki code .s8Opu, html code.shiki .s8Opu{--shiki-light:#795E26;--shiki-default:#DCDCAA;--shiki-dark:#DCDCAA}html pre.shiki code .spJ8K, html code.shiki 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.sjcCO{--shiki-light:#EE0000;--shiki-default:#D7BA7D;--shiki-dark:#D7BA7D}",{"title":2973,"searchDepth":3007,"depth":3007,"links":15797},[15798,15799,15803,15804,15807,15808,15809,15810,15815,15819,15825,15829,15830,15833,15841,15842],{"id":2961,"depth":3007,"text":2962},{"id":3462,"depth":3007,"text":3463,"children":15800},[15801,15802],{"id":3467,"depth":3026,"text":3468},{"id":3667,"depth":3026,"text":3668},{"id":3962,"depth":3007,"text":3963},{"id":4132,"depth":3007,"text":4133,"children":15805},[15806],{"id":4153,"depth":3026,"text":4154},{"id":4889,"depth":3007,"text":4890},{"id":6463,"depth":3007,"text":6464},{"id":7753,"depth":3007,"text":7754},{"id":9366,"depth":3007,"text":9367,"children":15811},[15812,15813,15814],{"id":9375,"depth":3026,"text":9376},{"id":9835,"depth":3026,"text":9836},{"id":10668,"depth":3026,"text":10669},{"id":11281,"depth":3007,"text":11282,"children":15816},[15817,15818],{"id":11628,"depth":3026,"text":11629},{"id":12131,"depth":3026,"text":12132},{"id":13051,"depth":3007,"text":13052,"children":15820},[15821,15822,15823,15824],{"id":13058,"depth":3026,"text":13059},{"id":13586,"depth":3026,"text":13587},{"id":13826,"depth":3026,"text":13827},{"id":14248,"depth":3026,"text":14249},{"id":14649,"depth":3007,"text":14650,"children":15826},[15827,15828],{"id":14656,"depth":3026,"text":14657},{"id":14698,"depth":3026,"text":14699},{"id":14753,"depth":3007,"text":14754},{"id":14994,"depth":3007,"text":14995,"children":15831},[15832],{"id":15001,"depth":3026,"text":15002},{"id":15373,"depth":3007,"text":15374,"children":15834},[15835,15836,15837,15838,15839,15840],{"id":15383,"depth":3026,"text":15384},{"id":15395,"depth":3026,"text":15396},{"id":15402,"depth":3026,"text":15403},{"id":15415,"depth":3026,"text":14832},{"id":15437,"depth":3026,"text":15438},{"id":15444,"depth":3026,"text":15445},{"id":15453,"depth":3007,"text":15454},{"id":15725,"depth":3007,"text":15726},"Від синхронних блокуючих операцій до асинхронної обробки: реалізація AsyncRepository через ExecutorService, інтеграція з CompletableFuture, паралельне виконання запитів та координація асинхронних операцій у транзакціях.","md",null,{},{"title":2337,"description":15843},"3R60x7d5ftwx1zYhz-gYlGpcHoVCuqWBrw36Rnb6NVg",[15850,15852],{"title":2333,"path":2334,"stem":2335,"description":15851,"children":-1},"Від простих WHERE-умов до складних підзапитів: реалізація специфікацій з EXISTS, IN (SELECT), HAVING, агрегатними функціями. Порівняння підходів: чисті специфікації vs спеціалізовані методи репозиторію. Коли використовувати що.",{"title":2341,"path":2342,"stem":2343,"description":15853,"children":-1},"Від mock-об'єктів до реальної БД: налаштування Embedded H2 для інтеграційних тестів, патерн Arrange-Act-Assert, найменування тестів за Given-When-Then, Test Data Builders та тестування FK/UNIQUE/CHECK constraints.",1777909228708]