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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 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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":2321,"body":2951,"description":11520,"extension":11521,"links":11522,"meta":11523,"navigation":3292,"path":2322,"seo":11524,"stem":2323,"__hash__":11525},"docs/04.java/pr2/18.proxy-lazy-loading.md",{"type":2952,"value":2953,"toc":11488},"minimark",[2954,2958,2963,2981,3006,3009,3103,3109,3114,3117,3207,3224,3232,3239,3243,3254,3322,3329,3352,3355,3359,3369,3382,3385,3446,3474,3709,3711,3717,3729,4982,4993,5018,5030,5032,5038,5046,5962,5964,5972,5975,6584,6616,6618,6627,6636,7728,7730,7734,8975,9170,9174,9180,9308,9422,9426,9433,9542,9549,9553,9563,9873,10345,10349,10423,10447,10449,10453,10457,10471,10488,10558,10567,10571,10592,10678,10686,10690,10697,10703,10709,10717,10805,10808,10810,10814,10933,10935,10939,10990,11019,11035,11037,11041,11103,11238,11484],[2955,2956,2321],"h1",{"id":2957},"proxy-lazy-loading-для-one-to-many-колекцій",[2959,2960,2962],"h2",{"id":2961},"вступ-ціна-доступу-до-повязаних-даних","Вступ: Ціна доступу до пов'язаних даних",[2964,2965,2966,2967,2971,2972,2975,2976,2980],"p",{},"У нашому репозиторії аудіоплатформи між ",[2968,2969,2970],"code",{},"Author"," і ",[2968,2973,2974],{},"Audiobook"," існує зв'язок ",[2977,2978,2979],"strong",{},"One-To-Many",": один автор може мати написати багато аудіокниг. У реляційній базі даних цей зв'язок виражається через зовнішній ключ:",[2982,2983,2988],"pre",{"className":2984,"code":2985,"language":2986,"meta":2987,"style":2987},"language-sql shiki shiki-themes light-plus dark-plus dark-plus","-- Таблиця аудіокниг зберігає посилання на автора\naudiobooks.author_id → authors.id\n","sql","",[2968,2989,2990,2999],{"__ignoreMap":2987},[2991,2992,2995],"span",{"class":2993,"line":2994},"line",1,[2991,2996,2998],{"class":2997},"spJ8K","-- Таблиця аудіокниг зберігає посилання на автора\n",[2991,3000,3002],{"class":2993,"line":3001},2,[2991,3003,3005],{"class":3004},"sHH4Y","audiobooks.author_id → authors.id\n",[2964,3007,3008],{},"У Java-моделі цей зв'язок природно виражається через колекцію:",[2982,3010,3014],{"className":3011,"code":3012,"language":3013,"meta":2987,"style":2987},"language-java shiki shiki-themes light-plus dark-plus dark-plus","public class Author {\n    private UUID id;\n    private String firstName;\n    private String lastName;\n    private List\u003CAudiobook> audiobooks; // One-To-Many\n}\n","java",[2968,3015,3016,3032,3047,3060,3072,3097],{"__ignoreMap":2987},[2991,3017,3018,3022,3025,3029],{"class":2993,"line":2994},[2991,3019,3021],{"class":3020},"su1O8","public",[2991,3023,3024],{"class":3020}," class",[2991,3026,3028],{"class":3027},"sN1BT"," Author",[2991,3030,3031],{"class":3004}," {\n",[2991,3033,3034,3037,3040,3044],{"class":2993,"line":3001},[2991,3035,3036],{"class":3020},"    private",[2991,3038,3039],{"class":3027}," UUID",[2991,3041,3043],{"class":3042},"siwwj"," id",[2991,3045,3046],{"class":3004},";\n",[2991,3048,3050,3052,3055,3058],{"class":2993,"line":3049},3,[2991,3051,3036],{"class":3020},[2991,3053,3054],{"class":3027}," String",[2991,3056,3057],{"class":3042}," firstName",[2991,3059,3046],{"class":3004},[2991,3061,3063,3065,3067,3070],{"class":2993,"line":3062},4,[2991,3064,3036],{"class":3020},[2991,3066,3054],{"class":3027},[2991,3068,3069],{"class":3042}," lastName",[2991,3071,3046],{"class":3004},[2991,3073,3075,3077,3080,3083,3085,3088,3091,3094],{"class":2993,"line":3074},5,[2991,3076,3036],{"class":3020},[2991,3078,3079],{"class":3027}," List",[2991,3081,3082],{"class":3004},"\u003C",[2991,3084,2974],{"class":3027},[2991,3086,3087],{"class":3004},"> ",[2991,3089,3090],{"class":3042},"audiobooks",[2991,3092,3093],{"class":3004},"; ",[2991,3095,3096],{"class":2997},"// One-To-Many\n",[2991,3098,3100],{"class":2993,"line":3099},6,[2991,3101,3102],{"class":3004},"}\n",[2964,3104,3105,3106],{},"Питання, що негайно постає перед будь-яким розробником: ",[2977,3107,3108],{},"коли завантажувати ці аудіокниги?",[3110,3111,3113],"h3",{"id":3112},"варіант-1-eager-loading-завантаження-одразу","Варіант 1: Eager Loading (завантаження одразу)",[2964,3115,3116],{},"Завантажити всі аудіокниги автора разом із самим автором в одному запиті:",[2982,3118,3120],{"className":3011,"code":3119,"language":3013,"meta":2987,"style":2987},"// У JdbcAuthorRepository.findById():\nAuthor author = mapAuthorRow(rs);\nList\u003CAudiobook> books = audiobookRepo.findByAuthorId(author.getId()); // другий SELECT\nauthor.setAudiobooks(books);\nreturn author;\n",[2968,3121,3122,3127,3144,3186,3198],{"__ignoreMap":2987},[2991,3123,3124],{"class":2993,"line":2994},[2991,3125,3126],{"class":2997},"// У JdbcAuthorRepository.findById():\n",[2991,3128,3129,3131,3134,3137,3141],{"class":2993,"line":3001},[2991,3130,2970],{"class":3027},[2991,3132,3133],{"class":3042}," author",[2991,3135,3136],{"class":3004}," = ",[2991,3138,3140],{"class":3139},"s8Opu","mapAuthorRow",[2991,3142,3143],{"class":3004},"(rs);\n",[2991,3145,3146,3149,3151,3153,3155,3158,3160,3163,3166,3169,3172,3175,3177,3180,3183],{"class":2993,"line":3049},[2991,3147,3148],{"class":3027},"List",[2991,3150,3082],{"class":3004},[2991,3152,2974],{"class":3027},[2991,3154,3087],{"class":3004},[2991,3156,3157],{"class":3042},"books",[2991,3159,3136],{"class":3004},[2991,3161,3162],{"class":3042},"audiobookRepo",[2991,3164,3165],{"class":3004},".",[2991,3167,3168],{"class":3139},"findByAuthorId",[2991,3170,3171],{"class":3004},"(",[2991,3173,3174],{"class":3042},"author",[2991,3176,3165],{"class":3004},[2991,3178,3179],{"class":3139},"getId",[2991,3181,3182],{"class":3004},"()); ",[2991,3184,3185],{"class":2997},"// другий SELECT\n",[2991,3187,3188,3190,3192,3195],{"class":2993,"line":3062},[2991,3189,3174],{"class":3042},[2991,3191,3165],{"class":3004},[2991,3193,3194],{"class":3139},"setAudiobooks",[2991,3196,3197],{"class":3004},"(books);\n",[2991,3199,3200,3204],{"class":2993,"line":3074},[2991,3201,3203],{"class":3202},"sCDza","return",[2991,3205,3206],{"class":3004}," author;\n",[2964,3208,3209,3212,3213,3216,3217,2971,3220,3223],{},[2977,3210,3211],{},"Проблема Eager Loading:"," якщо ви завантажуєте список авторів (",[2968,3214,3215],{},"findAll()",") для побудови сторінки каталогу, де показуються лише ",[2968,3218,3219],{},"firstName",[2968,3221,3222],{},"lastName",", — ви все одно виконуєте N+1 запити:",[2982,3225,3230],{"className":3226,"code":3228,"language":3229},[3227],"language-text","SELECT * FROM authors                     -- 1 запит: повертає 100 авторів\nSELECT * FROM audiobooks WHERE author_id=?  -- запит для автора 1\nSELECT * FROM audiobooks WHERE author_id=?  -- запит для автора 2\n...\nSELECT * FROM audiobooks WHERE author_id=?  -- запит для автора 100\n                                          -- = 101 SELECT загалом!\n","text",[2968,3231,3228],{"__ignoreMap":2987},[2964,3233,3234,3235,3238],{},"Це і є класична ",[2977,3236,3237],{},"N+1 Query Problem",": 1 запит для завантаження батьківських сутностей + N запитів для дочірніх, де N — кількість батьківських.",[3110,3240,3242],{"id":3241},"варіант-2-lazy-loading-відкладене-завантаження","Варіант 2: Lazy Loading (відкладене завантаження)",[2964,3244,3245,3246,3249,3250,3253],{},"Завантажувати аудіокниги лише тоді, коли клієнтський код ",[2977,3247,3248],{},"фактично звертається"," до ",[2968,3251,3252],{},"author.getAudiobooks()",":",[2982,3255,3257],{"className":3011,"code":3256,"language":3013,"meta":2987,"style":2987},"// Перший виклик: SELECT * FROM audiobooks WHERE author_id=?\nList\u003CAudiobook> books = author.getAudiobooks();\n\n// Другий виклик: жодного SQL — повертає вже завантажений список\nList\u003CAudiobook> sameBooks = author.getAudiobooks();\n",[2968,3258,3259,3264,3288,3294,3299],{"__ignoreMap":2987},[2991,3260,3261],{"class":2993,"line":2994},[2991,3262,3263],{"class":2997},"// Перший виклик: SELECT * FROM audiobooks WHERE author_id=?\n",[2991,3265,3266,3268,3270,3272,3274,3276,3278,3280,3282,3285],{"class":2993,"line":3001},[2991,3267,3148],{"class":3027},[2991,3269,3082],{"class":3004},[2991,3271,2974],{"class":3027},[2991,3273,3087],{"class":3004},[2991,3275,3157],{"class":3042},[2991,3277,3136],{"class":3004},[2991,3279,3174],{"class":3042},[2991,3281,3165],{"class":3004},[2991,3283,3284],{"class":3139},"getAudiobooks",[2991,3286,3287],{"class":3004},"();\n",[2991,3289,3290],{"class":2993,"line":3049},[2991,3291,3293],{"emptyLinePlaceholder":3292},true,"\n",[2991,3295,3296],{"class":2993,"line":3062},[2991,3297,3298],{"class":2997},"// Другий виклик: жодного SQL — повертає вже завантажений список\n",[2991,3300,3301,3303,3305,3307,3309,3312,3314,3316,3318,3320],{"class":2993,"line":3074},[2991,3302,3148],{"class":3027},[2991,3304,3082],{"class":3004},[2991,3306,2974],{"class":3027},[2991,3308,3087],{"class":3004},[2991,3310,3311],{"class":3042},"sameBooks",[2991,3313,3136],{"class":3004},[2991,3315,3174],{"class":3042},[2991,3317,3165],{"class":3004},[2991,3319,3284],{"class":3139},[2991,3321,3287],{"class":3004},[2964,3323,3324,3325,3328],{},"Lazy Loading вирішує проблему ",[2977,3326,3327],{},"передчасного завантаження",": якщо сторінка каталогу авторів не відображає їх книги — SQL для книг не виконується взагалі.",[3330,3331,3332,3333,3336,3337,3340,3341,3343,3344,3347,3348,3351],"warning",{},"Lazy Loading ",[2977,3334,3335],{},"переміщує"," N+1 Problem, а не вирішує її. Якщо ви ітеруєте по списку авторів і для кожного викликаєте ",[2968,3338,3339],{},"getAudiobooks()"," — ви отримаєте ті самі 101 запити, але тепер у циклі, а не в ",[2968,3342,3215],{},". Рішення — ",[2977,3345,3346],{},"JOIN-запит"," (Eager з одним запитом) або ",[2977,3349,3350],{},"batch loading"," (завантаження всіх книг для всіх авторів одним SELECT). Обидва варіанти розглянуті наприкінці статті.",[3353,3354],"hr",{},[2959,3356,3358],{"id":3357},"концепція-proxy-pattern-gof","Концепція: Proxy Pattern (GoF)",[2964,3360,3361,3364,3365,3368],{},[2977,3362,3363],{},"Proxy"," (GoF, ",[3366,3367,131],"em",{},", 1994):",[3370,3371,3372,3377],"blockquote",{},[2964,3373,3374],{},[3366,3375,3376],{},"«Provide a surrogate or placeholder for another object to control access to it.»",[2964,3378,3379],{},[3366,3380,3381],{},"«Надає замінник або заповнювач для іншого об'єкта для контролю доступу до нього.»",[2964,3383,3384],{},"GoF визначає три основні варіанти Proxy:",[3386,3387,3388,3417,3430],"card-group",{},[3389,3390,3393,3396],"card",{"icon":3391,"title":3392},"i-heroicons-clock","Virtual Proxy",[2964,3394,3395],{},"Відкладає створення або завантаження дорогого ресурсу до першого звернення.",[2964,3397,3398,3401,3402,3405,3406,3409,3410,3409,3413,3416],{},[2977,3399,3400],{},"Наш випадок:"," ",[2968,3403,3404],{},"LazyList\u003CAudiobook>"," не виконує SQL до першого виклику ",[2968,3407,3408],{},"get()",", ",[2968,3411,3412],{},"size()",[2968,3414,3415],{},"iterator()"," тощо.",[3389,3418,3421,3424],{"icon":3419,"title":3420},"i-heroicons-globe-alt","Remote Proxy",[2964,3422,3423],{},"Приховує мережеву комунікацію з віддаленим об'єктом. Клієнт думає, що спілкується з локальним об'єктом.",[2964,3425,3426,3429],{},[2977,3427,3428],{},"Приклад:"," Java RMI stub, gRPC-клієнт.",[3389,3431,3434,3437],{"icon":3432,"title":3433},"i-heroicons-shield-check","Protection Proxy",[2964,3435,3436],{},"Контролює доступ до методів на основі прав. Перевіряє авторизацію перед делегуванням.",[2964,3438,3439,3441,3442,3445],{},[2977,3440,3428],{}," Spring Security's ",[2968,3443,3444],{},"@PreAuthorize",", read-only proxy для незмінних колекцій.",[2964,3447,3448,3449,3451,3452,3455,3456,3459,3460,3463,3464,3467,3468,3470,3471,3473],{},"Для Lazy Loading ми реалізуємо ",[2977,3450,3392],{},": клас ",[2968,3453,3454],{},"LazyList\u003CT>",", що реалізує ",[2968,3457,3458],{},"List\u003CT>"," і є ",[2977,3461,3462],{},"прозорим замінником"," для звичайного ",[2968,3465,3466],{},"ArrayList\u003CT>",". Клієнтський код (поле ",[2968,3469,3252],{},") не знає, чи він отримав вже завантажений список чи Proxy — інтерфейс ",[2968,3472,3458],{}," однаковий.",[3475,3476,3477],"mermaid",{},[2982,3478,3481],{"className":3479,"code":3480,"language":3475,"meta":2987,"style":2987},"language-mermaid shiki shiki-themes light-plus dark-plus dark-plus","classDiagram\n    direction TB\n\n    class List~T~ {\n        \u003C\u003Cinterface>>\n        +get(index) T\n        +size() int\n        +iterator() Iterator~T~\n        +isEmpty() bool\n        +add(element) bool\n        +remove(index) T\n    }\n\n    class ArrayList~T~ {\n        -elementData: Object[]\n        +get(index) T\n        +size() int\n    }\n\n    class LazyList~T~ {\n        -loader: Supplier~List~T~~\n        -loaded: List~T~\n        -isLoaded: boolean\n        -ensureLoaded() void\n        +get(index) T\n        +size() int\n        +iterator() Iterator~T~\n    }\n\n    class Author {\n        -id: UUID\n        -firstName: String\n        -audiobooks: List~Audiobook~\n        +getAudiobooks() List~Audiobook~\n    }\n\n    List~T~ \u003C|.. ArrayList~T~\n    List~T~ \u003C|.. LazyList~T~\n    Author o-- LazyList~T~ : audiobooks field\u003Cbr/>(клієнт бачить List)\n\n    note for LazyList~T~ \"ensureLoaded() виконує SQL\u003Cbr/>тільки при першому зверненні\"\n",[2968,3482,3483,3488,3493,3497,3502,3507,3512,3518,3524,3530,3536,3542,3548,3553,3559,3565,3570,3575,3580,3585,3591,3597,3603,3609,3615,3620,3625,3630,3635,3640,3646,3652,3658,3664,3670,3675,3680,3686,3692,3698,3703],{"__ignoreMap":2987},[2991,3484,3485],{"class":2993,"line":2994},[2991,3486,3487],{},"classDiagram\n",[2991,3489,3490],{"class":2993,"line":3001},[2991,3491,3492],{},"    direction TB\n",[2991,3494,3495],{"class":2993,"line":3049},[2991,3496,3293],{"emptyLinePlaceholder":3292},[2991,3498,3499],{"class":2993,"line":3062},[2991,3500,3501],{},"    class List~T~ {\n",[2991,3503,3504],{"class":2993,"line":3074},[2991,3505,3506],{},"        \u003C\u003Cinterface>>\n",[2991,3508,3509],{"class":2993,"line":3099},[2991,3510,3511],{},"        +get(index) T\n",[2991,3513,3515],{"class":2993,"line":3514},7,[2991,3516,3517],{},"        +size() int\n",[2991,3519,3521],{"class":2993,"line":3520},8,[2991,3522,3523],{},"        +iterator() Iterator~T~\n",[2991,3525,3527],{"class":2993,"line":3526},9,[2991,3528,3529],{},"        +isEmpty() bool\n",[2991,3531,3533],{"class":2993,"line":3532},10,[2991,3534,3535],{},"        +add(element) bool\n",[2991,3537,3539],{"class":2993,"line":3538},11,[2991,3540,3541],{},"        +remove(index) T\n",[2991,3543,3545],{"class":2993,"line":3544},12,[2991,3546,3547],{},"    }\n",[2991,3549,3551],{"class":2993,"line":3550},13,[2991,3552,3293],{"emptyLinePlaceholder":3292},[2991,3554,3556],{"class":2993,"line":3555},14,[2991,3557,3558],{},"    class ArrayList~T~ {\n",[2991,3560,3562],{"class":2993,"line":3561},15,[2991,3563,3564],{},"        -elementData: Object[]\n",[2991,3566,3568],{"class":2993,"line":3567},16,[2991,3569,3511],{},[2991,3571,3573],{"class":2993,"line":3572},17,[2991,3574,3517],{},[2991,3576,3578],{"class":2993,"line":3577},18,[2991,3579,3547],{},[2991,3581,3583],{"class":2993,"line":3582},19,[2991,3584,3293],{"emptyLinePlaceholder":3292},[2991,3586,3588],{"class":2993,"line":3587},20,[2991,3589,3590],{},"    class LazyList~T~ {\n",[2991,3592,3594],{"class":2993,"line":3593},21,[2991,3595,3596],{},"        -loader: Supplier~List~T~~\n",[2991,3598,3600],{"class":2993,"line":3599},22,[2991,3601,3602],{},"        -loaded: List~T~\n",[2991,3604,3606],{"class":2993,"line":3605},23,[2991,3607,3608],{},"        -isLoaded: boolean\n",[2991,3610,3612],{"class":2993,"line":3611},24,[2991,3613,3614],{},"        -ensureLoaded() void\n",[2991,3616,3618],{"class":2993,"line":3617},25,[2991,3619,3511],{},[2991,3621,3623],{"class":2993,"line":3622},26,[2991,3624,3517],{},[2991,3626,3628],{"class":2993,"line":3627},27,[2991,3629,3523],{},[2991,3631,3633],{"class":2993,"line":3632},28,[2991,3634,3547],{},[2991,3636,3638],{"class":2993,"line":3637},29,[2991,3639,3293],{"emptyLinePlaceholder":3292},[2991,3641,3643],{"class":2993,"line":3642},30,[2991,3644,3645],{},"    class Author {\n",[2991,3647,3649],{"class":2993,"line":3648},31,[2991,3650,3651],{},"        -id: UUID\n",[2991,3653,3655],{"class":2993,"line":3654},32,[2991,3656,3657],{},"        -firstName: String\n",[2991,3659,3661],{"class":2993,"line":3660},33,[2991,3662,3663],{},"        -audiobooks: List~Audiobook~\n",[2991,3665,3667],{"class":2993,"line":3666},34,[2991,3668,3669],{},"        +getAudiobooks() List~Audiobook~\n",[2991,3671,3673],{"class":2993,"line":3672},35,[2991,3674,3547],{},[2991,3676,3678],{"class":2993,"line":3677},36,[2991,3679,3293],{"emptyLinePlaceholder":3292},[2991,3681,3683],{"class":2993,"line":3682},37,[2991,3684,3685],{},"    List~T~ \u003C|.. ArrayList~T~\n",[2991,3687,3689],{"class":2993,"line":3688},38,[2991,3690,3691],{},"    List~T~ \u003C|.. LazyList~T~\n",[2991,3693,3695],{"class":2993,"line":3694},39,[2991,3696,3697],{},"    Author o-- LazyList~T~ : audiobooks field\u003Cbr/>(клієнт бачить List)\n",[2991,3699,3701],{"class":2993,"line":3700},40,[2991,3702,3293],{"emptyLinePlaceholder":3292},[2991,3704,3706],{"class":2993,"line":3705},41,[2991,3707,3708],{},"    note for LazyList~T~ \"ensureLoaded() виконує SQL\u003Cbr/>тільки при першому зверненні\"\n",[3353,3710],{},[2959,3712,3714,3715],{"id":3713},"реалізація-lazylistt","Реалізація ",[2968,3716,3454],{},[2964,3718,3719,3721,3722,3724,3725,3728],{},[2968,3720,3454],{}," є серцем нашого Lazy Loading. Він делегує всі операції справжньому ",[2968,3723,3458],{},", але затримує виклик завантажувача (",[2968,3726,3727],{},"loader",") до першого звернення до вмісту.",[2982,3730,3733],{"className":3011,"code":3731,"language":3013,"meta":3732,"style":2987},"package com.example.audiobook.persistence;\n\nimport java.util.AbstractList;\nimport java.util.ArrayList;\nimport java.util.Iterator;\nimport java.util.List;\nimport java.util.ListIterator;\nimport java.util.function.Supplier;\n\n/**\n * Virtual Proxy для відкладеного завантаження колекцій.\n * \u003Cp>\n * Реалізує {@link List} (через {@link AbstractList}) і веде себе як\n * звичайний список, але фактично завантажує дані лише при першому\n * зверненні до будь-якого методу, що потребує вмісту колекції\n * ({@link #get}, {@link #size}, {@link #iterator} тощо).\n * \u003Cp>\n * \u003Cb>Принцип роботи:\u003C/b>\n * \u003Col>\n *   \u003Cli>Створюється з {@link Supplier} — лямбдою, що виконує SQL.\u003C/li>\n *   \u003Cli>Перше звернення до вмісту → викликається {@link #ensureLoaded()} → SQL.\u003C/li>\n *   \u003Cli>Результат кешується у {@code loaded} → наступні звернення без SQL.\u003C/li>\n * \u003C/ol>\n * \u003Cp>\n * \u003Cb>Прозорість:\u003C/b> клієнтський код отримує {@code List\u003CAudiobook>}\n * і не знає, що це {@code LazyList} — інтерфейс однаковий.\n *\n * @param \u003CT> тип елементів колекції (наприклад, {@code Audiobook})\n */\npublic class LazyList\u003CT> extends AbstractList\u003CT> {\n\n    /**\n     * Постачальник даних: лямбда, що виконує SQL і повертає завантажені об'єкти.\n     * Викликається лише один раз — при першому зверненні до вмісту.\n     */\n    private final Supplier\u003CList\u003CT>> loader;\n\n    /**\n     * Кешований результат після першого завантаження.\n     * {@code null} до першого виклику {@link #ensureLoaded()}.\n     */\n    private List\u003CT> loaded;\n\n    /**\n     * Прапор: {@code true} після першого завантаження.\n     * Використовуємо окремий булевий флаг замість {@code loaded != null},\n     * оскільки {@code loader} може повернути порожній список (не null).\n     */\n    private boolean isLoaded = false;\n\n    /**\n     * Створює LazyList з постачальником даних.\n     *\n     * @param loader лямбда, що повертає дані при першому зверненні.\n     *               Наприклад: {@code () -> audiobookRepo.findByAuthorId(authorId)}\n     */\n    public LazyList(Supplier\u003CList\u003CT>> loader) {\n        this.loader = loader;\n    }\n\n    /**\n     * Внутрішній метод ініціалізації: виконує завантаження при першому зверненні.\n     * \u003Cp>\n     * Всі публічні методи, що потребують вмісту, делегують через цей метод.\n     * Це єдине місце, де відбувається SQL-виконання.\n     */\n    private void ensureLoaded() {\n        if (!isLoaded) {\n            loaded = new ArrayList\u003C>(loader.get()); // виконати SQL і кешувати результат\n            isLoaded = true;\n        }\n    }\n\n    /**\n     * Повертає елемент за індексом.\n     * При першому виклику виконує SQL через {@link #ensureLoaded()}.\n     */\n    @Override\n    public T get(int index) {\n        ensureLoaded();\n        return loaded.get(index);\n    }\n\n    /**\n     * Повертає кількість елементів.\n     * При першому виклику виконує SQL.\n     * \u003Cp>\n     * Це важливий момент: навіть {@code size()} ініціює завантаження,\n     * оскільки кількість елементів невідома без SQL.\n     */\n    @Override\n    public int size() {\n        ensureLoaded();\n        return loaded.size();\n    }\n\n    /**\n     * Перевіряє, чи список порожній.\n     * При першому виклику виконує SQL.\n     */\n    @Override\n    public boolean isEmpty() {\n        ensureLoaded();\n        return loaded.isEmpty();\n    }\n\n    /**\n     * Повертає ітератор.\n     * Ініціює завантаження при першому зверненні.\n     * Використовується у for-each циклах.\n     */\n    @Override\n    public Iterator\u003CT> iterator() {\n        ensureLoaded();\n        return loaded.iterator();\n    }\n\n    @Override\n    public ListIterator\u003CT> listIterator() {\n        ensureLoaded();\n        return loaded.listIterator();\n    }\n\n    @Override\n    public ListIterator\u003CT> listIterator(int index) {\n        ensureLoaded();\n        return loaded.listIterator(index);\n    }\n\n    /**\n     * Перевіряє, чи список вже завантажений.\n     * Корисно для тестів і логування — дозволяє перевірити,\n     * чи був виконаний SQL.\n     *\n     * @return {@code true} якщо вміст вже завантажений з БД\n     */\n    public boolean isLoaded() {\n        return isLoaded;\n    }\n\n    /**\n     * Скидає кеш, змушуючи наступне звернення знову виконати SQL.\n     * \u003Cp>\n     * Викликається при інвалідації кешу: наприклад, після додавання\n     * або видалення аудіокниги у репозиторії.\n     */\n    public void invalidate() {\n        loaded = null;\n        isLoaded = false;\n    }\n\n    /**\n     * Повертає рядкове представлення.\n     * \u003Cb>Увага:\u003C/b> цей метод ініціює завантаження!\n     * Не використовуйте у логах, якщо хочете уникнути SQL.\n     */\n    @Override\n    public String toString() {\n        ensureLoaded();\n        return loaded.toString();\n    }\n}\n","showLineNumbers",[2968,3734,3735,3743,3747,3755,3762,3769,3776,3783,3790,3794,3799,3804,3809,3814,3819,3824,3829,3833,3838,3843,3848,3865,3870,3875,3879,3884,3889,3894,3908,3913,3942,3946,3951,3956,3961,3966,3991,3995,3999,4004,4018,4022,4040,4045,4050,4056,4062,4068,4073,4091,4096,4101,4107,4113,4127,4133,4138,4166,4179,4184,4189,4194,4200,4206,4212,4218,4223,4237,4246,4273,4284,4290,4295,4300,4305,4311,4325,4330,4339,4360,4368,4384,4389,4394,4399,4405,4411,4416,4422,4428,4433,4440,4453,4460,4474,4479,4484,4489,4495,4500,4505,4512,4524,4531,4545,4550,4555,4560,4566,4572,4578,4583,4590,4609,4616,4629,4634,4639,4646,4665,4672,4685,4690,4695,4702,4725,4732,4745,4750,4755,4760,4766,4772,4778,4783,4794,4799,4810,4818,4823,4828,4833,4839,4844,4850,4856,4861,4873,4884,4894,4899,4904,4909,4915,4921,4927,4932,4939,4951,4958,4972,4977],{"__ignoreMap":2987},[2991,3736,3737,3740],{"class":2993,"line":2994},[2991,3738,3739],{"class":3020},"package",[2991,3741,3742],{"class":3004}," com.example.audiobook.persistence;\n",[2991,3744,3745],{"class":2993,"line":3001},[2991,3746,3293],{"emptyLinePlaceholder":3292},[2991,3748,3749,3752],{"class":2993,"line":3049},[2991,3750,3751],{"class":3020},"import",[2991,3753,3754],{"class":3004}," java.util.AbstractList;\n",[2991,3756,3757,3759],{"class":2993,"line":3062},[2991,3758,3751],{"class":3020},[2991,3760,3761],{"class":3004}," java.util.ArrayList;\n",[2991,3763,3764,3766],{"class":2993,"line":3074},[2991,3765,3751],{"class":3020},[2991,3767,3768],{"class":3004}," java.util.Iterator;\n",[2991,3770,3771,3773],{"class":2993,"line":3099},[2991,3772,3751],{"class":3020},[2991,3774,3775],{"class":3004}," java.util.List;\n",[2991,3777,3778,3780],{"class":2993,"line":3514},[2991,3779,3751],{"class":3020},[2991,3781,3782],{"class":3004}," java.util.ListIterator;\n",[2991,3784,3785,3787],{"class":2993,"line":3520},[2991,3786,3751],{"class":3020},[2991,3788,3789],{"class":3004}," java.util.function.Supplier;\n",[2991,3791,3792],{"class":2993,"line":3526},[2991,3793,3293],{"emptyLinePlaceholder":3292},[2991,3795,3796],{"class":2993,"line":3532},[2991,3797,3798],{"class":2997},"/**\n",[2991,3800,3801],{"class":2993,"line":3538},[2991,3802,3803],{"class":2997}," * Virtual Proxy для відкладеного завантаження колекцій.\n",[2991,3805,3806],{"class":2993,"line":3544},[2991,3807,3808],{"class":2997}," * \u003Cp>\n",[2991,3810,3811],{"class":2993,"line":3550},[2991,3812,3813],{"class":2997}," * Реалізує {@link List} (через {@link AbstractList}) і веде себе як\n",[2991,3815,3816],{"class":2993,"line":3555},[2991,3817,3818],{"class":2997}," * звичайний список, але фактично завантажує дані лише при першому\n",[2991,3820,3821],{"class":2993,"line":3561},[2991,3822,3823],{"class":2997}," * зверненні до будь-якого методу, що потребує вмісту колекції\n",[2991,3825,3826],{"class":2993,"line":3567},[2991,3827,3828],{"class":2997}," * ({@link #get}, {@link #size}, {@link #iterator} тощо).\n",[2991,3830,3831],{"class":2993,"line":3572},[2991,3832,3808],{"class":2997},[2991,3834,3835],{"class":2993,"line":3577},[2991,3836,3837],{"class":2997}," * \u003Cb>Принцип роботи:\u003C/b>\n",[2991,3839,3840],{"class":2993,"line":3582},[2991,3841,3842],{"class":2997}," * \u003Col>\n",[2991,3844,3845],{"class":2993,"line":3587},[2991,3846,3847],{"class":2997}," *   \u003Cli>Створюється з {@link Supplier} — лямбдою, що виконує SQL.\u003C/li>\n",[2991,3849,3850,3853,3856,3859,3862],{"class":2993,"line":3593},[2991,3851,3852],{"class":2997}," *   \u003Cli>Перше звернення до вмісту → викликається {",[2991,3854,3855],{"class":3020},"@link",[2991,3857,3858],{"class":2997}," #",[2991,3860,3861],{"class":3042},"ensureLoaded()",[2991,3863,3864],{"class":2997},"} → SQL.\u003C/li>\n",[2991,3866,3867],{"class":2993,"line":3599},[2991,3868,3869],{"class":2997}," *   \u003Cli>Результат кешується у {@code loaded} → наступні звернення без SQL.\u003C/li>\n",[2991,3871,3872],{"class":2993,"line":3605},[2991,3873,3874],{"class":2997}," * \u003C/ol>\n",[2991,3876,3877],{"class":2993,"line":3611},[2991,3878,3808],{"class":2997},[2991,3880,3881],{"class":2993,"line":3617},[2991,3882,3883],{"class":2997}," * \u003Cb>Прозорість:\u003C/b> клієнтський код отримує {@code List\u003CAudiobook>}\n",[2991,3885,3886],{"class":2993,"line":3622},[2991,3887,3888],{"class":2997}," * і не знає, що це {@code LazyList} — інтерфейс однаковий.\n",[2991,3890,3891],{"class":2993,"line":3627},[2991,3892,3893],{"class":2997}," *\n",[2991,3895,3896,3899,3902,3905],{"class":2993,"line":3632},[2991,3897,3898],{"class":2997}," * ",[2991,3900,3901],{"class":3020},"@param",[2991,3903,3904],{"class":3042}," \u003CT>",[2991,3906,3907],{"class":2997}," тип елементів колекції (наприклад, {@code Audiobook})\n",[2991,3909,3910],{"class":2993,"line":3637},[2991,3911,3912],{"class":2997}," */\n",[2991,3914,3915,3917,3919,3922,3924,3927,3929,3932,3935,3937,3939],{"class":2993,"line":3642},[2991,3916,3021],{"class":3020},[2991,3918,3024],{"class":3020},[2991,3920,3921],{"class":3027}," LazyList",[2991,3923,3082],{"class":3004},[2991,3925,3926],{"class":3027},"T",[2991,3928,3087],{"class":3004},[2991,3930,3931],{"class":3020},"extends",[2991,3933,3934],{"class":3027}," AbstractList",[2991,3936,3082],{"class":3004},[2991,3938,3926],{"class":3027},[2991,3940,3941],{"class":3004},"> {\n",[2991,3943,3944],{"class":2993,"line":3648},[2991,3945,3293],{"emptyLinePlaceholder":3292},[2991,3947,3948],{"class":2993,"line":3654},[2991,3949,3950],{"class":2997},"    /**\n",[2991,3952,3953],{"class":2993,"line":3660},[2991,3954,3955],{"class":2997},"     * Постачальник даних: лямбда, що виконує SQL і повертає завантажені об'єкти.\n",[2991,3957,3958],{"class":2993,"line":3666},[2991,3959,3960],{"class":2997},"     * Викликається лише один раз — при першому зверненні до вмісту.\n",[2991,3962,3963],{"class":2993,"line":3672},[2991,3964,3965],{"class":2997},"     */\n",[2991,3967,3968,3970,3973,3976,3978,3980,3982,3984,3987,3989],{"class":2993,"line":3677},[2991,3969,3036],{"class":3020},[2991,3971,3972],{"class":3020}," final",[2991,3974,3975],{"class":3027}," Supplier",[2991,3977,3082],{"class":3004},[2991,3979,3148],{"class":3027},[2991,3981,3082],{"class":3004},[2991,3983,3926],{"class":3027},[2991,3985,3986],{"class":3004},">> ",[2991,3988,3727],{"class":3042},[2991,3990,3046],{"class":3004},[2991,3992,3993],{"class":2993,"line":3682},[2991,3994,3293],{"emptyLinePlaceholder":3292},[2991,3996,3997],{"class":2993,"line":3688},[2991,3998,3950],{"class":2997},[2991,4000,4001],{"class":2993,"line":3694},[2991,4002,4003],{"class":2997},"     * Кешований результат після першого завантаження.\n",[2991,4005,4006,4009,4011,4013,4015],{"class":2993,"line":3700},[2991,4007,4008],{"class":2997},"     * {@code null} до першого виклику {",[2991,4010,3855],{"class":3020},[2991,4012,3858],{"class":2997},[2991,4014,3861],{"class":3042},[2991,4016,4017],{"class":2997},"}.\n",[2991,4019,4020],{"class":2993,"line":3705},[2991,4021,3965],{"class":2997},[2991,4023,4025,4027,4029,4031,4033,4035,4038],{"class":2993,"line":4024},42,[2991,4026,3036],{"class":3020},[2991,4028,3079],{"class":3027},[2991,4030,3082],{"class":3004},[2991,4032,3926],{"class":3027},[2991,4034,3087],{"class":3004},[2991,4036,4037],{"class":3042},"loaded",[2991,4039,3046],{"class":3004},[2991,4041,4043],{"class":2993,"line":4042},43,[2991,4044,3293],{"emptyLinePlaceholder":3292},[2991,4046,4048],{"class":2993,"line":4047},44,[2991,4049,3950],{"class":2997},[2991,4051,4053],{"class":2993,"line":4052},45,[2991,4054,4055],{"class":2997},"     * Прапор: {@code true} після першого завантаження.\n",[2991,4057,4059],{"class":2993,"line":4058},46,[2991,4060,4061],{"class":2997},"     * Використовуємо окремий булевий флаг замість {@code loaded != null},\n",[2991,4063,4065],{"class":2993,"line":4064},47,[2991,4066,4067],{"class":2997},"     * оскільки {@code loader} може повернути порожній список (не null).\n",[2991,4069,4071],{"class":2993,"line":4070},48,[2991,4072,3965],{"class":2997},[2991,4074,4076,4078,4081,4084,4086,4089],{"class":2993,"line":4075},49,[2991,4077,3036],{"class":3020},[2991,4079,4080],{"class":3027}," boolean",[2991,4082,4083],{"class":3042}," isLoaded",[2991,4085,3136],{"class":3004},[2991,4087,4088],{"class":3020},"false",[2991,4090,3046],{"class":3004},[2991,4092,4094],{"class":2993,"line":4093},50,[2991,4095,3293],{"emptyLinePlaceholder":3292},[2991,4097,4099],{"class":2993,"line":4098},51,[2991,4100,3950],{"class":2997},[2991,4102,4104],{"class":2993,"line":4103},52,[2991,4105,4106],{"class":2997},"     * Створює LazyList з постачальником даних.\n",[2991,4108,4110],{"class":2993,"line":4109},53,[2991,4111,4112],{"class":2997},"     *\n",[2991,4114,4116,4119,4121,4124],{"class":2993,"line":4115},54,[2991,4117,4118],{"class":2997},"     * ",[2991,4120,3901],{"class":3020},[2991,4122,4123],{"class":3042}," loader",[2991,4125,4126],{"class":2997}," лямбда, що повертає дані при першому зверненні.\n",[2991,4128,4130],{"class":2993,"line":4129},55,[2991,4131,4132],{"class":2997},"     *               Наприклад: {@code () -> audiobookRepo.findByAuthorId(authorId)}\n",[2991,4134,4136],{"class":2993,"line":4135},56,[2991,4137,3965],{"class":2997},[2991,4139,4141,4144,4146,4148,4151,4153,4155,4157,4159,4161,4163],{"class":2993,"line":4140},57,[2991,4142,4143],{"class":3020},"    public",[2991,4145,3921],{"class":3139},[2991,4147,3171],{"class":3004},[2991,4149,4150],{"class":3027},"Supplier",[2991,4152,3082],{"class":3004},[2991,4154,3148],{"class":3027},[2991,4156,3082],{"class":3004},[2991,4158,3926],{"class":3027},[2991,4160,3986],{"class":3004},[2991,4162,3727],{"class":3042},[2991,4164,4165],{"class":3004},") {\n",[2991,4167,4169,4172,4174,4176],{"class":2993,"line":4168},58,[2991,4170,4171],{"class":3020},"        this",[2991,4173,3165],{"class":3004},[2991,4175,3727],{"class":3042},[2991,4177,4178],{"class":3004}," = loader;\n",[2991,4180,4182],{"class":2993,"line":4181},59,[2991,4183,3547],{"class":3004},[2991,4185,4187],{"class":2993,"line":4186},60,[2991,4188,3293],{"emptyLinePlaceholder":3292},[2991,4190,4192],{"class":2993,"line":4191},61,[2991,4193,3950],{"class":2997},[2991,4195,4197],{"class":2993,"line":4196},62,[2991,4198,4199],{"class":2997},"     * Внутрішній метод ініціалізації: виконує завантаження при першому зверненні.\n",[2991,4201,4203],{"class":2993,"line":4202},63,[2991,4204,4205],{"class":2997},"     * \u003Cp>\n",[2991,4207,4209],{"class":2993,"line":4208},64,[2991,4210,4211],{"class":2997},"     * Всі публічні методи, що потребують вмісту, делегують через цей метод.\n",[2991,4213,4215],{"class":2993,"line":4214},65,[2991,4216,4217],{"class":2997},"     * Це єдине місце, де відбувається SQL-виконання.\n",[2991,4219,4221],{"class":2993,"line":4220},66,[2991,4222,3965],{"class":2997},[2991,4224,4226,4228,4231,4234],{"class":2993,"line":4225},67,[2991,4227,3036],{"class":3020},[2991,4229,4230],{"class":3027}," void",[2991,4232,4233],{"class":3139}," ensureLoaded",[2991,4235,4236],{"class":3004},"() {\n",[2991,4238,4240,4243],{"class":2993,"line":4239},68,[2991,4241,4242],{"class":3202},"        if",[2991,4244,4245],{"class":3004}," (!isLoaded) {\n",[2991,4247,4249,4252,4255,4258,4261,4263,4265,4268,4270],{"class":2993,"line":4248},69,[2991,4250,4251],{"class":3004},"            loaded = ",[2991,4253,4254],{"class":3202},"new",[2991,4256,4257],{"class":3027}," ArrayList",[2991,4259,4260],{"class":3004},"\u003C>(",[2991,4262,3727],{"class":3042},[2991,4264,3165],{"class":3004},[2991,4266,4267],{"class":3139},"get",[2991,4269,3182],{"class":3004},[2991,4271,4272],{"class":2997},"// виконати SQL і кешувати результат\n",[2991,4274,4276,4279,4282],{"class":2993,"line":4275},70,[2991,4277,4278],{"class":3004},"            isLoaded = ",[2991,4280,4281],{"class":3020},"true",[2991,4283,3046],{"class":3004},[2991,4285,4287],{"class":2993,"line":4286},71,[2991,4288,4289],{"class":3004},"        }\n",[2991,4291,4293],{"class":2993,"line":4292},72,[2991,4294,3547],{"class":3004},[2991,4296,4298],{"class":2993,"line":4297},73,[2991,4299,3293],{"emptyLinePlaceholder":3292},[2991,4301,4303],{"class":2993,"line":4302},74,[2991,4304,3950],{"class":2997},[2991,4306,4308],{"class":2993,"line":4307},75,[2991,4309,4310],{"class":2997},"     * Повертає елемент за індексом.\n",[2991,4312,4314,4317,4319,4321,4323],{"class":2993,"line":4313},76,[2991,4315,4316],{"class":2997},"     * При першому виклику виконує SQL через {",[2991,4318,3855],{"class":3020},[2991,4320,3858],{"class":2997},[2991,4322,3861],{"class":3042},[2991,4324,4017],{"class":2997},[2991,4326,4328],{"class":2993,"line":4327},77,[2991,4329,3965],{"class":2997},[2991,4331,4333,4336],{"class":2993,"line":4332},78,[2991,4334,4335],{"class":3004},"    @",[2991,4337,4338],{"class":3027},"Override\n",[2991,4340,4342,4344,4347,4350,4352,4355,4358],{"class":2993,"line":4341},79,[2991,4343,4143],{"class":3020},[2991,4345,4346],{"class":3027}," T",[2991,4348,4349],{"class":3139}," get",[2991,4351,3171],{"class":3004},[2991,4353,4354],{"class":3027},"int",[2991,4356,4357],{"class":3042}," index",[2991,4359,4165],{"class":3004},[2991,4361,4363,4366],{"class":2993,"line":4362},80,[2991,4364,4365],{"class":3139},"        ensureLoaded",[2991,4367,3287],{"class":3004},[2991,4369,4371,4374,4377,4379,4381],{"class":2993,"line":4370},81,[2991,4372,4373],{"class":3202},"        return",[2991,4375,4376],{"class":3042}," loaded",[2991,4378,3165],{"class":3004},[2991,4380,4267],{"class":3139},[2991,4382,4383],{"class":3004},"(index);\n",[2991,4385,4387],{"class":2993,"line":4386},82,[2991,4388,3547],{"class":3004},[2991,4390,4392],{"class":2993,"line":4391},83,[2991,4393,3293],{"emptyLinePlaceholder":3292},[2991,4395,4397],{"class":2993,"line":4396},84,[2991,4398,3950],{"class":2997},[2991,4400,4402],{"class":2993,"line":4401},85,[2991,4403,4404],{"class":2997},"     * Повертає кількість елементів.\n",[2991,4406,4408],{"class":2993,"line":4407},86,[2991,4409,4410],{"class":2997},"     * При першому виклику виконує SQL.\n",[2991,4412,4414],{"class":2993,"line":4413},87,[2991,4415,4205],{"class":2997},[2991,4417,4419],{"class":2993,"line":4418},88,[2991,4420,4421],{"class":2997},"     * Це важливий момент: навіть {@code size()} ініціює завантаження,\n",[2991,4423,4425],{"class":2993,"line":4424},89,[2991,4426,4427],{"class":2997},"     * оскільки кількість елементів невідома без SQL.\n",[2991,4429,4431],{"class":2993,"line":4430},90,[2991,4432,3965],{"class":2997},[2991,4434,4436,4438],{"class":2993,"line":4435},91,[2991,4437,4335],{"class":3004},[2991,4439,4338],{"class":3027},[2991,4441,4443,4445,4448,4451],{"class":2993,"line":4442},92,[2991,4444,4143],{"class":3020},[2991,4446,4447],{"class":3027}," int",[2991,4449,4450],{"class":3139}," size",[2991,4452,4236],{"class":3004},[2991,4454,4456,4458],{"class":2993,"line":4455},93,[2991,4457,4365],{"class":3139},[2991,4459,3287],{"class":3004},[2991,4461,4463,4465,4467,4469,4472],{"class":2993,"line":4462},94,[2991,4464,4373],{"class":3202},[2991,4466,4376],{"class":3042},[2991,4468,3165],{"class":3004},[2991,4470,4471],{"class":3139},"size",[2991,4473,3287],{"class":3004},[2991,4475,4477],{"class":2993,"line":4476},95,[2991,4478,3547],{"class":3004},[2991,4480,4482],{"class":2993,"line":4481},96,[2991,4483,3293],{"emptyLinePlaceholder":3292},[2991,4485,4487],{"class":2993,"line":4486},97,[2991,4488,3950],{"class":2997},[2991,4490,4492],{"class":2993,"line":4491},98,[2991,4493,4494],{"class":2997},"     * Перевіряє, чи список порожній.\n",[2991,4496,4498],{"class":2993,"line":4497},99,[2991,4499,4410],{"class":2997},[2991,4501,4503],{"class":2993,"line":4502},100,[2991,4504,3965],{"class":2997},[2991,4506,4508,4510],{"class":2993,"line":4507},101,[2991,4509,4335],{"class":3004},[2991,4511,4338],{"class":3027},[2991,4513,4515,4517,4519,4522],{"class":2993,"line":4514},102,[2991,4516,4143],{"class":3020},[2991,4518,4080],{"class":3027},[2991,4520,4521],{"class":3139}," isEmpty",[2991,4523,4236],{"class":3004},[2991,4525,4527,4529],{"class":2993,"line":4526},103,[2991,4528,4365],{"class":3139},[2991,4530,3287],{"class":3004},[2991,4532,4534,4536,4538,4540,4543],{"class":2993,"line":4533},104,[2991,4535,4373],{"class":3202},[2991,4537,4376],{"class":3042},[2991,4539,3165],{"class":3004},[2991,4541,4542],{"class":3139},"isEmpty",[2991,4544,3287],{"class":3004},[2991,4546,4548],{"class":2993,"line":4547},105,[2991,4549,3547],{"class":3004},[2991,4551,4553],{"class":2993,"line":4552},106,[2991,4554,3293],{"emptyLinePlaceholder":3292},[2991,4556,4558],{"class":2993,"line":4557},107,[2991,4559,3950],{"class":2997},[2991,4561,4563],{"class":2993,"line":4562},108,[2991,4564,4565],{"class":2997},"     * Повертає ітератор.\n",[2991,4567,4569],{"class":2993,"line":4568},109,[2991,4570,4571],{"class":2997},"     * Ініціює завантаження при першому зверненні.\n",[2991,4573,4575],{"class":2993,"line":4574},110,[2991,4576,4577],{"class":2997},"     * Використовується у for-each циклах.\n",[2991,4579,4581],{"class":2993,"line":4580},111,[2991,4582,3965],{"class":2997},[2991,4584,4586,4588],{"class":2993,"line":4585},112,[2991,4587,4335],{"class":3004},[2991,4589,4338],{"class":3027},[2991,4591,4593,4595,4598,4600,4602,4604,4607],{"class":2993,"line":4592},113,[2991,4594,4143],{"class":3020},[2991,4596,4597],{"class":3027}," Iterator",[2991,4599,3082],{"class":3004},[2991,4601,3926],{"class":3027},[2991,4603,3087],{"class":3004},[2991,4605,4606],{"class":3139},"iterator",[2991,4608,4236],{"class":3004},[2991,4610,4612,4614],{"class":2993,"line":4611},114,[2991,4613,4365],{"class":3139},[2991,4615,3287],{"class":3004},[2991,4617,4619,4621,4623,4625,4627],{"class":2993,"line":4618},115,[2991,4620,4373],{"class":3202},[2991,4622,4376],{"class":3042},[2991,4624,3165],{"class":3004},[2991,4626,4606],{"class":3139},[2991,4628,3287],{"class":3004},[2991,4630,4632],{"class":2993,"line":4631},116,[2991,4633,3547],{"class":3004},[2991,4635,4637],{"class":2993,"line":4636},117,[2991,4638,3293],{"emptyLinePlaceholder":3292},[2991,4640,4642,4644],{"class":2993,"line":4641},118,[2991,4643,4335],{"class":3004},[2991,4645,4338],{"class":3027},[2991,4647,4649,4651,4654,4656,4658,4660,4663],{"class":2993,"line":4648},119,[2991,4650,4143],{"class":3020},[2991,4652,4653],{"class":3027}," ListIterator",[2991,4655,3082],{"class":3004},[2991,4657,3926],{"class":3027},[2991,4659,3087],{"class":3004},[2991,4661,4662],{"class":3139},"listIterator",[2991,4664,4236],{"class":3004},[2991,4666,4668,4670],{"class":2993,"line":4667},120,[2991,4669,4365],{"class":3139},[2991,4671,3287],{"class":3004},[2991,4673,4675,4677,4679,4681,4683],{"class":2993,"line":4674},121,[2991,4676,4373],{"class":3202},[2991,4678,4376],{"class":3042},[2991,4680,3165],{"class":3004},[2991,4682,4662],{"class":3139},[2991,4684,3287],{"class":3004},[2991,4686,4688],{"class":2993,"line":4687},122,[2991,4689,3547],{"class":3004},[2991,4691,4693],{"class":2993,"line":4692},123,[2991,4694,3293],{"emptyLinePlaceholder":3292},[2991,4696,4698,4700],{"class":2993,"line":4697},124,[2991,4699,4335],{"class":3004},[2991,4701,4338],{"class":3027},[2991,4703,4705,4707,4709,4711,4713,4715,4717,4719,4721,4723],{"class":2993,"line":4704},125,[2991,4706,4143],{"class":3020},[2991,4708,4653],{"class":3027},[2991,4710,3082],{"class":3004},[2991,4712,3926],{"class":3027},[2991,4714,3087],{"class":3004},[2991,4716,4662],{"class":3139},[2991,4718,3171],{"class":3004},[2991,4720,4354],{"class":3027},[2991,4722,4357],{"class":3042},[2991,4724,4165],{"class":3004},[2991,4726,4728,4730],{"class":2993,"line":4727},126,[2991,4729,4365],{"class":3139},[2991,4731,3287],{"class":3004},[2991,4733,4735,4737,4739,4741,4743],{"class":2993,"line":4734},127,[2991,4736,4373],{"class":3202},[2991,4738,4376],{"class":3042},[2991,4740,3165],{"class":3004},[2991,4742,4662],{"class":3139},[2991,4744,4383],{"class":3004},[2991,4746,4748],{"class":2993,"line":4747},128,[2991,4749,3547],{"class":3004},[2991,4751,4753],{"class":2993,"line":4752},129,[2991,4754,3293],{"emptyLinePlaceholder":3292},[2991,4756,4758],{"class":2993,"line":4757},130,[2991,4759,3950],{"class":2997},[2991,4761,4763],{"class":2993,"line":4762},131,[2991,4764,4765],{"class":2997},"     * Перевіряє, чи список вже завантажений.\n",[2991,4767,4769],{"class":2993,"line":4768},132,[2991,4770,4771],{"class":2997},"     * Корисно для тестів і логування — дозволяє перевірити,\n",[2991,4773,4775],{"class":2993,"line":4774},133,[2991,4776,4777],{"class":2997},"     * чи був виконаний SQL.\n",[2991,4779,4781],{"class":2993,"line":4780},134,[2991,4782,4112],{"class":2997},[2991,4784,4786,4788,4791],{"class":2993,"line":4785},135,[2991,4787,4118],{"class":2997},[2991,4789,4790],{"class":3020},"@return",[2991,4792,4793],{"class":2997}," {@code true} якщо вміст вже завантажений з БД\n",[2991,4795,4797],{"class":2993,"line":4796},136,[2991,4798,3965],{"class":2997},[2991,4800,4802,4804,4806,4808],{"class":2993,"line":4801},137,[2991,4803,4143],{"class":3020},[2991,4805,4080],{"class":3027},[2991,4807,4083],{"class":3139},[2991,4809,4236],{"class":3004},[2991,4811,4813,4815],{"class":2993,"line":4812},138,[2991,4814,4373],{"class":3202},[2991,4816,4817],{"class":3004}," isLoaded;\n",[2991,4819,4821],{"class":2993,"line":4820},139,[2991,4822,3547],{"class":3004},[2991,4824,4826],{"class":2993,"line":4825},140,[2991,4827,3293],{"emptyLinePlaceholder":3292},[2991,4829,4831],{"class":2993,"line":4830},141,[2991,4832,3950],{"class":2997},[2991,4834,4836],{"class":2993,"line":4835},142,[2991,4837,4838],{"class":2997},"     * Скидає кеш, змушуючи наступне звернення знову виконати SQL.\n",[2991,4840,4842],{"class":2993,"line":4841},143,[2991,4843,4205],{"class":2997},[2991,4845,4847],{"class":2993,"line":4846},144,[2991,4848,4849],{"class":2997},"     * Викликається при інвалідації кешу: наприклад, після додавання\n",[2991,4851,4853],{"class":2993,"line":4852},145,[2991,4854,4855],{"class":2997},"     * або видалення аудіокниги у репозиторії.\n",[2991,4857,4859],{"class":2993,"line":4858},146,[2991,4860,3965],{"class":2997},[2991,4862,4864,4866,4868,4871],{"class":2993,"line":4863},147,[2991,4865,4143],{"class":3020},[2991,4867,4230],{"class":3027},[2991,4869,4870],{"class":3139}," invalidate",[2991,4872,4236],{"class":3004},[2991,4874,4876,4879,4882],{"class":2993,"line":4875},148,[2991,4877,4878],{"class":3004},"        loaded = ",[2991,4880,4881],{"class":3020},"null",[2991,4883,3046],{"class":3004},[2991,4885,4887,4890,4892],{"class":2993,"line":4886},149,[2991,4888,4889],{"class":3004},"        isLoaded = ",[2991,4891,4088],{"class":3020},[2991,4893,3046],{"class":3004},[2991,4895,4897],{"class":2993,"line":4896},150,[2991,4898,3547],{"class":3004},[2991,4900,4902],{"class":2993,"line":4901},151,[2991,4903,3293],{"emptyLinePlaceholder":3292},[2991,4905,4907],{"class":2993,"line":4906},152,[2991,4908,3950],{"class":2997},[2991,4910,4912],{"class":2993,"line":4911},153,[2991,4913,4914],{"class":2997},"     * Повертає рядкове представлення.\n",[2991,4916,4918],{"class":2993,"line":4917},154,[2991,4919,4920],{"class":2997},"     * \u003Cb>Увага:\u003C/b> цей метод ініціює завантаження!\n",[2991,4922,4924],{"class":2993,"line":4923},155,[2991,4925,4926],{"class":2997},"     * Не використовуйте у логах, якщо хочете уникнути SQL.\n",[2991,4928,4930],{"class":2993,"line":4929},156,[2991,4931,3965],{"class":2997},[2991,4933,4935,4937],{"class":2993,"line":4934},157,[2991,4936,4335],{"class":3004},[2991,4938,4338],{"class":3027},[2991,4940,4942,4944,4946,4949],{"class":2993,"line":4941},158,[2991,4943,4143],{"class":3020},[2991,4945,3054],{"class":3027},[2991,4947,4948],{"class":3139}," toString",[2991,4950,4236],{"class":3004},[2991,4952,4954,4956],{"class":2993,"line":4953},159,[2991,4955,4365],{"class":3139},[2991,4957,3287],{"class":3004},[2991,4959,4961,4963,4965,4967,4970],{"class":2993,"line":4960},160,[2991,4962,4373],{"class":3202},[2991,4964,4376],{"class":3042},[2991,4966,3165],{"class":3004},[2991,4968,4969],{"class":3139},"toString",[2991,4971,3287],{"class":3004},[2991,4973,4975],{"class":2993,"line":4974},161,[2991,4976,3547],{"class":3004},[2991,4978,4980],{"class":2993,"line":4979},162,[2991,4981,3102],{"class":3004},[3110,4983,4985,4986,4989,4990,4992],{"id":4984},"чому-abstractlistt-а-не-пряма-реалізація-listt","Чому ",[2968,4987,4988],{},"AbstractList\u003CT>",", а не пряма реалізація ",[2968,4991,3458],{},"?",[2964,4994,4995,4997,4998,5001,5002,5004,5005,5008,5009,2971,5012,5014,5015,3165],{},[2968,4996,3458],{}," має 25 методів. Пряма реалізація всіх через ",[2968,4999,5000],{},"ensureLoaded() + loaded.method()"," — це ~150 рядків механічного коду. ",[2968,5003,4988],{}," є скелетною реалізацією, що реалізує більшість методів через лише два ",[2977,5006,5007],{},"абстрактні",": ",[2968,5010,5011],{},"get(int index)",[2968,5013,3412],{},". Решта (contains, indexOf, subList, equals, hashCode тощо) реалізовані через ці два у ",[2968,5016,5017],{},"AbstractList",[2964,5019,5020,5021,2971,5023,5026,5027,5029],{},"Ми перевизначаємо лише ",[2968,5022,3415],{},[2968,5024,5025],{},"listIterator()"," для кращої продуктивності (щоб уникнути зайвих викликів через ",[2968,5028,3408],{},").",[3353,5031],{},[2959,5033,5035,5036],{"id":5034},"інтеграція-з-author","Інтеграція з ",[2968,5037,2970],{},[2964,5039,5040,5041,5043,5044,3253],{},"Після реалізації ",[2968,5042,3454],{}," підключимо його до доменного класу ",[2968,5045,2970],{},[2982,5047,5049],{"className":3011,"code":5048,"language":3013,"meta":3732,"style":2987},"package com.example.audiobook.domain;\n\nimport com.example.audiobook.persistence.LazyList;\n\nimport java.util.List;\nimport java.util.UUID;\nimport java.util.function.Supplier;\n\n/**\n * Доменна сутність Автор із підтримкою Lazy Loading для колекції аудіокниг.\n * \u003Cp>\n * Поле {@code audiobooks} є {@link LazyList} — Virtual Proxy,\n * що завантажує аудіокниги з БД при першому зверненні.\n * Клієнтський код працює з {@code List\u003CAudiobook>} і не знає\n * про наявність Proxy.\n */\npublic class Author {\n\n    private UUID   id;\n    private String firstName;\n    private String lastName;\n    private String bio;\n    private String imagePath;\n\n    /**\n     * Колекція аудіокниг цього автора.\n     * \u003Cp>\n     * За замовчуванням — {@code null} (не ініціалізовано).\n     * Ініціалізується репозиторієм через {@link #initLazyAudiobooks(Supplier)}.\n     * При зверненні до {@code getAudiobooks()} виконується SQL лише якщо\n     * {@code audiobooks} — це {@link LazyList} і він ще не завантажений.\n     */\n    private List\u003CAudiobook> audiobooks;\n\n    public Author(String firstName, String lastName) {\n        this.id = UUID.randomUUID();\n        this.firstName = firstName;\n        this.lastName = lastName;\n    }\n\n    /**\n     * Ініціалізує lazy-завантаження аудіокниг.\n     * \u003Cp>\n     * Викликається репозиторієм після маппінгу основних полів автора.\n     * Передається лямбда ({@link Supplier}), що виконає SQL при першому\n     * зверненні до {@link #getAudiobooks()}.\n     *\n     * @param loader лямбда-завантажувач: {@code () -> audiobookRepo.findByAuthorId(id)}\n     */\n    public void initLazyAudiobooks(Supplier\u003CList\u003CAudiobook>> loader) {\n        this.audiobooks = new LazyList\u003C>(loader);\n    }\n\n    /**\n     * Повертає колекцію аудіокниг.\n     * \u003Cp>\n     * Якщо {@code audiobooks} — це {@link LazyList}, перше звернення\n     * виконає {@code SELECT * FROM audiobooks WHERE author_id = ?}.\n     * Наступні звернення повертають кешований результат.\n     * \u003Cp>\n     * Якщо {@code audiobooks} не ініціалізовано ({@code null}),\n     * повертає порожній незмінний список — безпечний default.\n     *\n     * @return список аудіокниг; ніколи не повертає {@code null}\n     */\n    public List\u003CAudiobook> getAudiobooks() {\n        if (audiobooks == null) {\n            return List.of(); // ще не підключено lazy-loader\n        }\n        return audiobooks; // LazyList виконає SQL при першому зверненні\n    }\n\n    /**\n     * Встановлює конкретний список (замість lazy-завантаження).\n     * Використовується при:\n     * - JOIN-завантаженні (всі дані прийшли в одному запиті)\n     * - Тестах (фіксована колекція без SQL)\n     * - Після збереження нової аудіокниги (інвалідація lazy-кешу)\n     */\n    public void setAudiobooks(List\u003CAudiobook> audiobooks) {\n        this.audiobooks = audiobooks;\n    }\n\n    /**\n     * Перевіряє, чи аудіокниги вже завантажені з БД.\n     * Корисно для діагностики та тестування.\n     */\n    public boolean isAudiobooksLoaded() {\n        return audiobooks instanceof LazyList\u003CAudiobook> lazy\n            ? lazy.isLoaded()\n            : audiobooks != null;\n    }\n\n    // ─── Стандартні getter/setter ─────────────────────────────────────────────\n\n    public UUID   getId()        { return id; }\n    public void   setId(UUID id) { this.id = id; }\n    public String getFirstName() { return firstName; }\n    public void   setFirstName(String firstName) { this.firstName = firstName; }\n    public String getLastName()  { return lastName; }\n    public void   setLastName(String lastName)   { this.lastName = lastName; }\n    public String getBio()       { return bio; }\n    public void   setBio(String bio) { this.bio = bio; }\n    public String getImagePath() { return imagePath; }\n    public void   setImagePath(String imagePath) { this.imagePath = imagePath; }\n}\n",[2968,5050,5051,5058,5062,5069,5073,5079,5086,5092,5096,5100,5105,5109,5114,5119,5124,5129,5133,5143,5147,5158,5168,5178,5189,5200,5204,5208,5213,5217,5222,5236,5241,5246,5250,5266,5270,5291,5312,5323,5334,5338,5342,5346,5351,5355,5360,5365,5378,5382,5393,5397,5424,5441,5445,5449,5453,5458,5462,5467,5472,5477,5481,5486,5491,5495,5504,5508,5524,5535,5553,5557,5567,5571,5575,5579,5584,5589,5594,5599,5604,5608,5631,5642,5646,5650,5654,5659,5664,5668,5679,5694,5710,5722,5726,5730,5735,5739,5756,5784,5801,5827,5844,5871,5888,5915,5931,5958],{"__ignoreMap":2987},[2991,5052,5053,5055],{"class":2993,"line":2994},[2991,5054,3739],{"class":3020},[2991,5056,5057],{"class":3004}," com.example.audiobook.domain;\n",[2991,5059,5060],{"class":2993,"line":3001},[2991,5061,3293],{"emptyLinePlaceholder":3292},[2991,5063,5064,5066],{"class":2993,"line":3049},[2991,5065,3751],{"class":3020},[2991,5067,5068],{"class":3004}," com.example.audiobook.persistence.LazyList;\n",[2991,5070,5071],{"class":2993,"line":3062},[2991,5072,3293],{"emptyLinePlaceholder":3292},[2991,5074,5075,5077],{"class":2993,"line":3074},[2991,5076,3751],{"class":3020},[2991,5078,3775],{"class":3004},[2991,5080,5081,5083],{"class":2993,"line":3099},[2991,5082,3751],{"class":3020},[2991,5084,5085],{"class":3004}," java.util.UUID;\n",[2991,5087,5088,5090],{"class":2993,"line":3514},[2991,5089,3751],{"class":3020},[2991,5091,3789],{"class":3004},[2991,5093,5094],{"class":2993,"line":3520},[2991,5095,3293],{"emptyLinePlaceholder":3292},[2991,5097,5098],{"class":2993,"line":3526},[2991,5099,3798],{"class":2997},[2991,5101,5102],{"class":2993,"line":3532},[2991,5103,5104],{"class":2997}," * Доменна сутність Автор із підтримкою Lazy Loading для колекції аудіокниг.\n",[2991,5106,5107],{"class":2993,"line":3538},[2991,5108,3808],{"class":2997},[2991,5110,5111],{"class":2993,"line":3544},[2991,5112,5113],{"class":2997}," * Поле {@code audiobooks} є {@link LazyList} — Virtual Proxy,\n",[2991,5115,5116],{"class":2993,"line":3550},[2991,5117,5118],{"class":2997}," * що завантажує аудіокниги з БД при першому зверненні.\n",[2991,5120,5121],{"class":2993,"line":3555},[2991,5122,5123],{"class":2997}," * Клієнтський код працює з {@code List\u003CAudiobook>} і не знає\n",[2991,5125,5126],{"class":2993,"line":3561},[2991,5127,5128],{"class":2997}," * про наявність Proxy.\n",[2991,5130,5131],{"class":2993,"line":3567},[2991,5132,3912],{"class":2997},[2991,5134,5135,5137,5139,5141],{"class":2993,"line":3572},[2991,5136,3021],{"class":3020},[2991,5138,3024],{"class":3020},[2991,5140,3028],{"class":3027},[2991,5142,3031],{"class":3004},[2991,5144,5145],{"class":2993,"line":3577},[2991,5146,3293],{"emptyLinePlaceholder":3292},[2991,5148,5149,5151,5153,5156],{"class":2993,"line":3582},[2991,5150,3036],{"class":3020},[2991,5152,3039],{"class":3027},[2991,5154,5155],{"class":3042},"   id",[2991,5157,3046],{"class":3004},[2991,5159,5160,5162,5164,5166],{"class":2993,"line":3587},[2991,5161,3036],{"class":3020},[2991,5163,3054],{"class":3027},[2991,5165,3057],{"class":3042},[2991,5167,3046],{"class":3004},[2991,5169,5170,5172,5174,5176],{"class":2993,"line":3593},[2991,5171,3036],{"class":3020},[2991,5173,3054],{"class":3027},[2991,5175,3069],{"class":3042},[2991,5177,3046],{"class":3004},[2991,5179,5180,5182,5184,5187],{"class":2993,"line":3599},[2991,5181,3036],{"class":3020},[2991,5183,3054],{"class":3027},[2991,5185,5186],{"class":3042}," bio",[2991,5188,3046],{"class":3004},[2991,5190,5191,5193,5195,5198],{"class":2993,"line":3605},[2991,5192,3036],{"class":3020},[2991,5194,3054],{"class":3027},[2991,5196,5197],{"class":3042}," imagePath",[2991,5199,3046],{"class":3004},[2991,5201,5202],{"class":2993,"line":3611},[2991,5203,3293],{"emptyLinePlaceholder":3292},[2991,5205,5206],{"class":2993,"line":3617},[2991,5207,3950],{"class":2997},[2991,5209,5210],{"class":2993,"line":3622},[2991,5211,5212],{"class":2997},"     * Колекція аудіокниг цього автора.\n",[2991,5214,5215],{"class":2993,"line":3627},[2991,5216,4205],{"class":2997},[2991,5218,5219],{"class":2993,"line":3632},[2991,5220,5221],{"class":2997},"     * За замовчуванням — {@code null} (не ініціалізовано).\n",[2991,5223,5224,5227,5229,5231,5234],{"class":2993,"line":3637},[2991,5225,5226],{"class":2997},"     * Ініціалізується репозиторієм через {",[2991,5228,3855],{"class":3020},[2991,5230,3858],{"class":2997},[2991,5232,5233],{"class":3042},"initLazyAudiobooks(Supplier)",[2991,5235,4017],{"class":2997},[2991,5237,5238],{"class":2993,"line":3642},[2991,5239,5240],{"class":2997},"     * При зверненні до {@code getAudiobooks()} виконується SQL лише якщо\n",[2991,5242,5243],{"class":2993,"line":3648},[2991,5244,5245],{"class":2997},"     * {@code audiobooks} — це {@link LazyList} і він ще не завантажений.\n",[2991,5247,5248],{"class":2993,"line":3654},[2991,5249,3965],{"class":2997},[2991,5251,5252,5254,5256,5258,5260,5262,5264],{"class":2993,"line":3660},[2991,5253,3036],{"class":3020},[2991,5255,3079],{"class":3027},[2991,5257,3082],{"class":3004},[2991,5259,2974],{"class":3027},[2991,5261,3087],{"class":3004},[2991,5263,3090],{"class":3042},[2991,5265,3046],{"class":3004},[2991,5267,5268],{"class":2993,"line":3666},[2991,5269,3293],{"emptyLinePlaceholder":3292},[2991,5271,5272,5274,5276,5278,5281,5283,5285,5287,5289],{"class":2993,"line":3672},[2991,5273,4143],{"class":3020},[2991,5275,3028],{"class":3139},[2991,5277,3171],{"class":3004},[2991,5279,5280],{"class":3027},"String",[2991,5282,3057],{"class":3042},[2991,5284,3409],{"class":3004},[2991,5286,5280],{"class":3027},[2991,5288,3069],{"class":3042},[2991,5290,4165],{"class":3004},[2991,5292,5293,5295,5297,5300,5302,5305,5307,5310],{"class":2993,"line":3677},[2991,5294,4171],{"class":3020},[2991,5296,3165],{"class":3004},[2991,5298,5299],{"class":3042},"id",[2991,5301,3136],{"class":3004},[2991,5303,5304],{"class":3042},"UUID",[2991,5306,3165],{"class":3004},[2991,5308,5309],{"class":3139},"randomUUID",[2991,5311,3287],{"class":3004},[2991,5313,5314,5316,5318,5320],{"class":2993,"line":3682},[2991,5315,4171],{"class":3020},[2991,5317,3165],{"class":3004},[2991,5319,3219],{"class":3042},[2991,5321,5322],{"class":3004}," = firstName;\n",[2991,5324,5325,5327,5329,5331],{"class":2993,"line":3688},[2991,5326,4171],{"class":3020},[2991,5328,3165],{"class":3004},[2991,5330,3222],{"class":3042},[2991,5332,5333],{"class":3004}," = lastName;\n",[2991,5335,5336],{"class":2993,"line":3694},[2991,5337,3547],{"class":3004},[2991,5339,5340],{"class":2993,"line":3700},[2991,5341,3293],{"emptyLinePlaceholder":3292},[2991,5343,5344],{"class":2993,"line":3705},[2991,5345,3950],{"class":2997},[2991,5347,5348],{"class":2993,"line":4024},[2991,5349,5350],{"class":2997},"     * Ініціалізує lazy-завантаження аудіокниг.\n",[2991,5352,5353],{"class":2993,"line":4042},[2991,5354,4205],{"class":2997},[2991,5356,5357],{"class":2993,"line":4047},[2991,5358,5359],{"class":2997},"     * Викликається репозиторієм після маппінгу основних полів автора.\n",[2991,5361,5362],{"class":2993,"line":4052},[2991,5363,5364],{"class":2997},"     * Передається лямбда ({@link Supplier}), що виконає SQL при першому\n",[2991,5366,5367,5370,5372,5374,5376],{"class":2993,"line":4058},[2991,5368,5369],{"class":2997},"     * зверненні до {",[2991,5371,3855],{"class":3020},[2991,5373,3858],{"class":2997},[2991,5375,3339],{"class":3042},[2991,5377,4017],{"class":2997},[2991,5379,5380],{"class":2993,"line":4064},[2991,5381,4112],{"class":2997},[2991,5383,5384,5386,5388,5390],{"class":2993,"line":4070},[2991,5385,4118],{"class":2997},[2991,5387,3901],{"class":3020},[2991,5389,4123],{"class":3042},[2991,5391,5392],{"class":2997}," лямбда-завантажувач: {@code () -> audiobookRepo.findByAuthorId(id)}\n",[2991,5394,5395],{"class":2993,"line":4075},[2991,5396,3965],{"class":2997},[2991,5398,5399,5401,5403,5406,5408,5410,5412,5414,5416,5418,5420,5422],{"class":2993,"line":4093},[2991,5400,4143],{"class":3020},[2991,5402,4230],{"class":3027},[2991,5404,5405],{"class":3139}," initLazyAudiobooks",[2991,5407,3171],{"class":3004},[2991,5409,4150],{"class":3027},[2991,5411,3082],{"class":3004},[2991,5413,3148],{"class":3027},[2991,5415,3082],{"class":3004},[2991,5417,2974],{"class":3027},[2991,5419,3986],{"class":3004},[2991,5421,3727],{"class":3042},[2991,5423,4165],{"class":3004},[2991,5425,5426,5428,5430,5432,5434,5436,5438],{"class":2993,"line":4098},[2991,5427,4171],{"class":3020},[2991,5429,3165],{"class":3004},[2991,5431,3090],{"class":3042},[2991,5433,3136],{"class":3004},[2991,5435,4254],{"class":3202},[2991,5437,3921],{"class":3027},[2991,5439,5440],{"class":3004},"\u003C>(loader);\n",[2991,5442,5443],{"class":2993,"line":4103},[2991,5444,3547],{"class":3004},[2991,5446,5447],{"class":2993,"line":4109},[2991,5448,3293],{"emptyLinePlaceholder":3292},[2991,5450,5451],{"class":2993,"line":4115},[2991,5452,3950],{"class":2997},[2991,5454,5455],{"class":2993,"line":4129},[2991,5456,5457],{"class":2997},"     * Повертає колекцію аудіокниг.\n",[2991,5459,5460],{"class":2993,"line":4135},[2991,5461,4205],{"class":2997},[2991,5463,5464],{"class":2993,"line":4140},[2991,5465,5466],{"class":2997},"     * Якщо {@code audiobooks} — це {@link LazyList}, перше звернення\n",[2991,5468,5469],{"class":2993,"line":4168},[2991,5470,5471],{"class":2997},"     * виконає {@code SELECT * FROM audiobooks WHERE author_id = ?}.\n",[2991,5473,5474],{"class":2993,"line":4181},[2991,5475,5476],{"class":2997},"     * Наступні звернення повертають кешований результат.\n",[2991,5478,5479],{"class":2993,"line":4186},[2991,5480,4205],{"class":2997},[2991,5482,5483],{"class":2993,"line":4191},[2991,5484,5485],{"class":2997},"     * Якщо {@code audiobooks} не ініціалізовано ({@code null}),\n",[2991,5487,5488],{"class":2993,"line":4196},[2991,5489,5490],{"class":2997},"     * повертає порожній незмінний список — безпечний default.\n",[2991,5492,5493],{"class":2993,"line":4202},[2991,5494,4112],{"class":2997},[2991,5496,5497,5499,5501],{"class":2993,"line":4208},[2991,5498,4118],{"class":2997},[2991,5500,4790],{"class":3020},[2991,5502,5503],{"class":2997}," список аудіокниг; ніколи не повертає {@code null}\n",[2991,5505,5506],{"class":2993,"line":4214},[2991,5507,3965],{"class":2997},[2991,5509,5510,5512,5514,5516,5518,5520,5522],{"class":2993,"line":4220},[2991,5511,4143],{"class":3020},[2991,5513,3079],{"class":3027},[2991,5515,3082],{"class":3004},[2991,5517,2974],{"class":3027},[2991,5519,3087],{"class":3004},[2991,5521,3284],{"class":3139},[2991,5523,4236],{"class":3004},[2991,5525,5526,5528,5531,5533],{"class":2993,"line":4225},[2991,5527,4242],{"class":3202},[2991,5529,5530],{"class":3004}," (audiobooks == ",[2991,5532,4881],{"class":3020},[2991,5534,4165],{"class":3004},[2991,5536,5537,5540,5542,5544,5547,5550],{"class":2993,"line":4239},[2991,5538,5539],{"class":3202},"            return",[2991,5541,3079],{"class":3042},[2991,5543,3165],{"class":3004},[2991,5545,5546],{"class":3139},"of",[2991,5548,5549],{"class":3004},"(); ",[2991,5551,5552],{"class":2997},"// ще не підключено lazy-loader\n",[2991,5554,5555],{"class":2993,"line":4248},[2991,5556,4289],{"class":3004},[2991,5558,5559,5561,5564],{"class":2993,"line":4275},[2991,5560,4373],{"class":3202},[2991,5562,5563],{"class":3004}," audiobooks; ",[2991,5565,5566],{"class":2997},"// LazyList виконає SQL при першому зверненні\n",[2991,5568,5569],{"class":2993,"line":4286},[2991,5570,3547],{"class":3004},[2991,5572,5573],{"class":2993,"line":4292},[2991,5574,3293],{"emptyLinePlaceholder":3292},[2991,5576,5577],{"class":2993,"line":4297},[2991,5578,3950],{"class":2997},[2991,5580,5581],{"class":2993,"line":4302},[2991,5582,5583],{"class":2997},"     * Встановлює конкретний список (замість lazy-завантаження).\n",[2991,5585,5586],{"class":2993,"line":4307},[2991,5587,5588],{"class":2997},"     * Використовується при:\n",[2991,5590,5591],{"class":2993,"line":4313},[2991,5592,5593],{"class":2997},"     * - JOIN-завантаженні (всі дані прийшли в одному запиті)\n",[2991,5595,5596],{"class":2993,"line":4327},[2991,5597,5598],{"class":2997},"     * - Тестах (фіксована колекція без SQL)\n",[2991,5600,5601],{"class":2993,"line":4332},[2991,5602,5603],{"class":2997},"     * - Після збереження нової аудіокниги (інвалідація lazy-кешу)\n",[2991,5605,5606],{"class":2993,"line":4341},[2991,5607,3965],{"class":2997},[2991,5609,5610,5612,5614,5617,5619,5621,5623,5625,5627,5629],{"class":2993,"line":4362},[2991,5611,4143],{"class":3020},[2991,5613,4230],{"class":3027},[2991,5615,5616],{"class":3139}," setAudiobooks",[2991,5618,3171],{"class":3004},[2991,5620,3148],{"class":3027},[2991,5622,3082],{"class":3004},[2991,5624,2974],{"class":3027},[2991,5626,3087],{"class":3004},[2991,5628,3090],{"class":3042},[2991,5630,4165],{"class":3004},[2991,5632,5633,5635,5637,5639],{"class":2993,"line":4370},[2991,5634,4171],{"class":3020},[2991,5636,3165],{"class":3004},[2991,5638,3090],{"class":3042},[2991,5640,5641],{"class":3004}," = audiobooks;\n",[2991,5643,5644],{"class":2993,"line":4386},[2991,5645,3547],{"class":3004},[2991,5647,5648],{"class":2993,"line":4391},[2991,5649,3293],{"emptyLinePlaceholder":3292},[2991,5651,5652],{"class":2993,"line":4396},[2991,5653,3950],{"class":2997},[2991,5655,5656],{"class":2993,"line":4401},[2991,5657,5658],{"class":2997},"     * Перевіряє, чи аудіокниги вже завантажені з БД.\n",[2991,5660,5661],{"class":2993,"line":4407},[2991,5662,5663],{"class":2997},"     * Корисно для діагностики та тестування.\n",[2991,5665,5666],{"class":2993,"line":4413},[2991,5667,3965],{"class":2997},[2991,5669,5670,5672,5674,5677],{"class":2993,"line":4418},[2991,5671,4143],{"class":3020},[2991,5673,4080],{"class":3027},[2991,5675,5676],{"class":3139}," isAudiobooksLoaded",[2991,5678,4236],{"class":3004},[2991,5680,5681,5683,5686,5689,5691],{"class":2993,"line":4424},[2991,5682,4373],{"class":3202},[2991,5684,5685],{"class":3004}," audiobooks ",[2991,5687,5688],{"class":3020},"instanceof",[2991,5690,3921],{"class":3027},[2991,5692,5693],{"class":3004},"\u003CAudiobook> lazy\n",[2991,5695,5696,5699,5702,5704,5707],{"class":2993,"line":4430},[2991,5697,5698],{"class":3202},"            ?",[2991,5700,5701],{"class":3042}," lazy",[2991,5703,3165],{"class":3004},[2991,5705,5706],{"class":3139},"isLoaded",[2991,5708,5709],{"class":3004},"()\n",[2991,5711,5712,5715,5718,5720],{"class":2993,"line":4435},[2991,5713,5714],{"class":3202},"            :",[2991,5716,5717],{"class":3004}," audiobooks != ",[2991,5719,4881],{"class":3020},[2991,5721,3046],{"class":3004},[2991,5723,5724],{"class":2993,"line":4442},[2991,5725,3547],{"class":3004},[2991,5727,5728],{"class":2993,"line":4455},[2991,5729,3293],{"emptyLinePlaceholder":3292},[2991,5731,5732],{"class":2993,"line":4462},[2991,5733,5734],{"class":2997},"    // ─── Стандартні getter/setter ─────────────────────────────────────────────\n",[2991,5736,5737],{"class":2993,"line":4476},[2991,5738,3293],{"emptyLinePlaceholder":3292},[2991,5740,5741,5743,5745,5748,5751,5753],{"class":2993,"line":4481},[2991,5742,4143],{"class":3020},[2991,5744,3039],{"class":3027},[2991,5746,5747],{"class":3139},"   getId",[2991,5749,5750],{"class":3004},"()        { ",[2991,5752,3203],{"class":3202},[2991,5754,5755],{"class":3004}," id; }\n",[2991,5757,5758,5760,5762,5765,5767,5769,5771,5774,5777,5779,5781],{"class":2993,"line":4486},[2991,5759,4143],{"class":3020},[2991,5761,4230],{"class":3027},[2991,5763,5764],{"class":3139},"   setId",[2991,5766,3171],{"class":3004},[2991,5768,5304],{"class":3027},[2991,5770,3043],{"class":3042},[2991,5772,5773],{"class":3004},") { ",[2991,5775,5776],{"class":3020},"this",[2991,5778,3165],{"class":3004},[2991,5780,5299],{"class":3042},[2991,5782,5783],{"class":3004}," = id; }\n",[2991,5785,5786,5788,5790,5793,5796,5798],{"class":2993,"line":4491},[2991,5787,4143],{"class":3020},[2991,5789,3054],{"class":3027},[2991,5791,5792],{"class":3139}," getFirstName",[2991,5794,5795],{"class":3004},"() { ",[2991,5797,3203],{"class":3202},[2991,5799,5800],{"class":3004}," firstName; }\n",[2991,5802,5803,5805,5807,5810,5812,5814,5816,5818,5820,5822,5824],{"class":2993,"line":4497},[2991,5804,4143],{"class":3020},[2991,5806,4230],{"class":3027},[2991,5808,5809],{"class":3139},"   setFirstName",[2991,5811,3171],{"class":3004},[2991,5813,5280],{"class":3027},[2991,5815,3057],{"class":3042},[2991,5817,5773],{"class":3004},[2991,5819,5776],{"class":3020},[2991,5821,3165],{"class":3004},[2991,5823,3219],{"class":3042},[2991,5825,5826],{"class":3004}," = firstName; }\n",[2991,5828,5829,5831,5833,5836,5839,5841],{"class":2993,"line":4502},[2991,5830,4143],{"class":3020},[2991,5832,3054],{"class":3027},[2991,5834,5835],{"class":3139}," getLastName",[2991,5837,5838],{"class":3004},"()  { ",[2991,5840,3203],{"class":3202},[2991,5842,5843],{"class":3004}," lastName; }\n",[2991,5845,5846,5848,5850,5853,5855,5857,5859,5862,5864,5866,5868],{"class":2993,"line":4507},[2991,5847,4143],{"class":3020},[2991,5849,4230],{"class":3027},[2991,5851,5852],{"class":3139},"   setLastName",[2991,5854,3171],{"class":3004},[2991,5856,5280],{"class":3027},[2991,5858,3069],{"class":3042},[2991,5860,5861],{"class":3004},")   { ",[2991,5863,5776],{"class":3020},[2991,5865,3165],{"class":3004},[2991,5867,3222],{"class":3042},[2991,5869,5870],{"class":3004}," = lastName; }\n",[2991,5872,5873,5875,5877,5880,5883,5885],{"class":2993,"line":4514},[2991,5874,4143],{"class":3020},[2991,5876,3054],{"class":3027},[2991,5878,5879],{"class":3139}," getBio",[2991,5881,5882],{"class":3004},"()       { ",[2991,5884,3203],{"class":3202},[2991,5886,5887],{"class":3004}," bio; }\n",[2991,5889,5890,5892,5894,5897,5899,5901,5903,5905,5907,5909,5912],{"class":2993,"line":4526},[2991,5891,4143],{"class":3020},[2991,5893,4230],{"class":3027},[2991,5895,5896],{"class":3139},"   setBio",[2991,5898,3171],{"class":3004},[2991,5900,5280],{"class":3027},[2991,5902,5186],{"class":3042},[2991,5904,5773],{"class":3004},[2991,5906,5776],{"class":3020},[2991,5908,3165],{"class":3004},[2991,5910,5911],{"class":3042},"bio",[2991,5913,5914],{"class":3004}," = bio; }\n",[2991,5916,5917,5919,5921,5924,5926,5928],{"class":2993,"line":4533},[2991,5918,4143],{"class":3020},[2991,5920,3054],{"class":3027},[2991,5922,5923],{"class":3139}," getImagePath",[2991,5925,5795],{"class":3004},[2991,5927,3203],{"class":3202},[2991,5929,5930],{"class":3004}," imagePath; }\n",[2991,5932,5933,5935,5937,5940,5942,5944,5946,5948,5950,5952,5955],{"class":2993,"line":4547},[2991,5934,4143],{"class":3020},[2991,5936,4230],{"class":3027},[2991,5938,5939],{"class":3139},"   setImagePath",[2991,5941,3171],{"class":3004},[2991,5943,5280],{"class":3027},[2991,5945,5197],{"class":3042},[2991,5947,5773],{"class":3004},[2991,5949,5776],{"class":3020},[2991,5951,3165],{"class":3004},[2991,5953,5954],{"class":3042},"imagePath",[2991,5956,5957],{"class":3004}," = imagePath; }\n",[2991,5959,5960],{"class":2993,"line":4552},[2991,5961,3102],{"class":3004},[3353,5963],{},[2959,5965,5967,5968,5971],{"id":5966},"оновлений-jdbcauthorrepository-підключення-lazylist","Оновлений ",[2968,5969,5970],{},"JdbcAuthorRepository",": Підключення LazyList",[2964,5973,5974],{},"Репозиторій встановлює lazy-loader одразу після маппінгу основних полів автора:",[2982,5976,5978],{"className":3011,"code":5977,"language":3013,"meta":3732,"style":2987},"package com.example.audiobook.repository.jdbc;\n\nimport com.example.audiobook.db.ConnectionManager;\nimport com.example.audiobook.domain.Author;\nimport com.example.audiobook.domain.Audiobook;\nimport com.example.audiobook.repository.AudiobookRepository;\n\nimport java.sql.ResultSet;\nimport java.sql.SQLException;\nimport java.util.UUID;\n\n/**\n * JDBC-репозиторій авторів із підтримкою Lazy Loading для аудіокниг.\n * \u003Cp>\n * Після завантаження основних полів {@link Author} ініціалізує\n * lazy-завантаження через {@link Author#initLazyAudiobooks}.\n * SQL для аудіокниг виконується лише при зверненні до\n * {@link Author#getAudiobooks()}.\n */\npublic class JdbcAuthorRepository extends AbstractJdbcRepository\u003CAuthor, UUID>\n        implements com.example.audiobook.repository.AuthorRepository {\n\n    /**\n     * Репозиторій аудіокниг — потрібен для lazy-завантаження пов'язаних книг.\n     * Передається через конструктор для дотримання DIP.\n     */\n    private final AudiobookRepository audiobookRepository;\n\n    public JdbcAuthorRepository(\n            ConnectionManager cm,\n            com.example.audiobook.repository.strategy.SqlStrategy\u003CAuthor> strategy,\n            AudiobookRepository audiobookRepository) {\n        super(cm, strategy);\n        this.audiobookRepository = audiobookRepository;\n    }\n\n    /**\n     * Маппінг рядка ResultSet у Author із підключенням lazy-loader.\n     * \u003Cp>\n     * \u003Cb>Критично важлива деталь:\u003C/b> ми захоплюємо {@code authorId}\n     * в локальну final-змінну перед передачею в лямбду. Це необхідно,\n     * оскільки лямбда може виконатися пізніше ніж {@code mapRow()},\n     * і локальна змінна повинна бути effectively final.\n     */\n    @Override\n    protected Author mapRow(ResultSet rs) throws SQLException {\n        // Крок 1: Завантажити основні поля автора (без аудіокниг)\n        Author author = new Author(\n            rs.getString(\"first_name\"),\n            rs.getString(\"last_name\")\n        );\n        author.setId(rs.getObject(\"id\", UUID.class));\n        author.setBio(rs.getString(\"bio\"));\n        author.setImagePath(rs.getString(\"image_path\"));\n\n        // Крок 2: Захопити ID у effectively final-змінну для лямбди\n        UUID authorId = author.getId();\n\n        // Крок 3: Підключити lazy-loader — SQL не виконується зараз!\n        // Лямбда () -> ... буде викликана лише при author.getAudiobooks()\n        author.initLazyAudiobooks(\n            () -> audiobookRepository.findByAuthorId(authorId)\n        );\n\n        return author;\n        // В цей момент: 1 SELECT (автор) виконано, 0 SELECT для аудіокниг\n    }\n}\n",[2968,5979,5980,5987,5991,5998,6005,6012,6019,6023,6030,6037,6043,6047,6051,6056,6060,6065,6070,6075,6091,6095,6121,6134,6138,6142,6147,6152,6156,6170,6174,6183,6194,6234,6243,6251,6263,6267,6271,6275,6280,6284,6289,6294,6299,6304,6308,6314,6343,6348,6363,6382,6398,6403,6440,6464,6488,6492,6497,6515,6519,6524,6529,6540,6557,6561,6565,6571,6576,6580],{"__ignoreMap":2987},[2991,5981,5982,5984],{"class":2993,"line":2994},[2991,5983,3739],{"class":3020},[2991,5985,5986],{"class":3004}," com.example.audiobook.repository.jdbc;\n",[2991,5988,5989],{"class":2993,"line":3001},[2991,5990,3293],{"emptyLinePlaceholder":3292},[2991,5992,5993,5995],{"class":2993,"line":3049},[2991,5994,3751],{"class":3020},[2991,5996,5997],{"class":3004}," com.example.audiobook.db.ConnectionManager;\n",[2991,5999,6000,6002],{"class":2993,"line":3062},[2991,6001,3751],{"class":3020},[2991,6003,6004],{"class":3004}," com.example.audiobook.domain.Author;\n",[2991,6006,6007,6009],{"class":2993,"line":3074},[2991,6008,3751],{"class":3020},[2991,6010,6011],{"class":3004}," com.example.audiobook.domain.Audiobook;\n",[2991,6013,6014,6016],{"class":2993,"line":3099},[2991,6015,3751],{"class":3020},[2991,6017,6018],{"class":3004}," com.example.audiobook.repository.AudiobookRepository;\n",[2991,6020,6021],{"class":2993,"line":3514},[2991,6022,3293],{"emptyLinePlaceholder":3292},[2991,6024,6025,6027],{"class":2993,"line":3520},[2991,6026,3751],{"class":3020},[2991,6028,6029],{"class":3004}," java.sql.ResultSet;\n",[2991,6031,6032,6034],{"class":2993,"line":3526},[2991,6033,3751],{"class":3020},[2991,6035,6036],{"class":3004}," java.sql.SQLException;\n",[2991,6038,6039,6041],{"class":2993,"line":3532},[2991,6040,3751],{"class":3020},[2991,6042,5085],{"class":3004},[2991,6044,6045],{"class":2993,"line":3538},[2991,6046,3293],{"emptyLinePlaceholder":3292},[2991,6048,6049],{"class":2993,"line":3544},[2991,6050,3798],{"class":2997},[2991,6052,6053],{"class":2993,"line":3550},[2991,6054,6055],{"class":2997}," * JDBC-репозиторій авторів із підтримкою Lazy Loading для аудіокниг.\n",[2991,6057,6058],{"class":2993,"line":3555},[2991,6059,3808],{"class":2997},[2991,6061,6062],{"class":2993,"line":3561},[2991,6063,6064],{"class":2997}," * Після завантаження основних полів {@link Author} ініціалізує\n",[2991,6066,6067],{"class":2993,"line":3567},[2991,6068,6069],{"class":2997}," * lazy-завантаження через {@link Author#initLazyAudiobooks}.\n",[2991,6071,6072],{"class":2993,"line":3572},[2991,6073,6074],{"class":2997}," * SQL для аудіокниг виконується лише при зверненні до\n",[2991,6076,6077,6080,6082,6084,6087,6089],{"class":2993,"line":3577},[2991,6078,6079],{"class":2997}," * {",[2991,6081,3855],{"class":3020},[2991,6083,3028],{"class":3027},[2991,6085,6086],{"class":2997},"#",[2991,6088,3339],{"class":3042},[2991,6090,4017],{"class":2997},[2991,6092,6093],{"class":2993,"line":3582},[2991,6094,3912],{"class":2997},[2991,6096,6097,6099,6101,6104,6107,6110,6112,6114,6116,6118],{"class":2993,"line":3587},[2991,6098,3021],{"class":3020},[2991,6100,3024],{"class":3020},[2991,6102,6103],{"class":3027}," JdbcAuthorRepository",[2991,6105,6106],{"class":3020}," extends",[2991,6108,6109],{"class":3027}," AbstractJdbcRepository",[2991,6111,3082],{"class":3004},[2991,6113,2970],{"class":3027},[2991,6115,3409],{"class":3004},[2991,6117,5304],{"class":3027},[2991,6119,6120],{"class":3004},">\n",[2991,6122,6123,6126,6129,6132],{"class":2993,"line":3593},[2991,6124,6125],{"class":3020},"        implements",[2991,6127,6128],{"class":3004}," com.example.audiobook.repository.",[2991,6130,6131],{"class":3027},"AuthorRepository",[2991,6133,3031],{"class":3004},[2991,6135,6136],{"class":2993,"line":3599},[2991,6137,3293],{"emptyLinePlaceholder":3292},[2991,6139,6140],{"class":2993,"line":3605},[2991,6141,3950],{"class":2997},[2991,6143,6144],{"class":2993,"line":3611},[2991,6145,6146],{"class":2997},"     * Репозиторій аудіокниг — потрібен для lazy-завантаження пов'язаних книг.\n",[2991,6148,6149],{"class":2993,"line":3617},[2991,6150,6151],{"class":2997},"     * Передається через конструктор для дотримання DIP.\n",[2991,6153,6154],{"class":2993,"line":3622},[2991,6155,3965],{"class":2997},[2991,6157,6158,6160,6162,6165,6168],{"class":2993,"line":3627},[2991,6159,3036],{"class":3020},[2991,6161,3972],{"class":3020},[2991,6163,6164],{"class":3027}," AudiobookRepository",[2991,6166,6167],{"class":3042}," audiobookRepository",[2991,6169,3046],{"class":3004},[2991,6171,6172],{"class":2993,"line":3632},[2991,6173,3293],{"emptyLinePlaceholder":3292},[2991,6175,6176,6178,6180],{"class":2993,"line":3637},[2991,6177,4143],{"class":3020},[2991,6179,6103],{"class":3139},[2991,6181,6182],{"class":3004},"(\n",[2991,6184,6185,6188,6191],{"class":2993,"line":3642},[2991,6186,6187],{"class":3027},"            ConnectionManager",[2991,6189,6190],{"class":3042}," cm",[2991,6192,6193],{"class":3004},",\n",[2991,6195,6196,6199,6201,6204,6206,6209,6211,6214,6216,6219,6221,6224,6226,6228,6230,6232],{"class":2993,"line":3648},[2991,6197,6198],{"class":3027},"            com",[2991,6200,3165],{"class":3004},[2991,6202,6203],{"class":3027},"example",[2991,6205,3165],{"class":3004},[2991,6207,6208],{"class":3027},"audiobook",[2991,6210,3165],{"class":3004},[2991,6212,6213],{"class":3027},"repository",[2991,6215,3165],{"class":3004},[2991,6217,6218],{"class":3027},"strategy",[2991,6220,3165],{"class":3004},[2991,6222,6223],{"class":3027},"SqlStrategy",[2991,6225,3082],{"class":3004},[2991,6227,2970],{"class":3027},[2991,6229,3087],{"class":3004},[2991,6231,6218],{"class":3042},[2991,6233,6193],{"class":3004},[2991,6235,6236,6239,6241],{"class":2993,"line":3654},[2991,6237,6238],{"class":3027},"            AudiobookRepository",[2991,6240,6167],{"class":3042},[2991,6242,4165],{"class":3004},[2991,6244,6245,6248],{"class":2993,"line":3660},[2991,6246,6247],{"class":3020},"        super",[2991,6249,6250],{"class":3004},"(cm, strategy);\n",[2991,6252,6253,6255,6257,6260],{"class":2993,"line":3666},[2991,6254,4171],{"class":3020},[2991,6256,3165],{"class":3004},[2991,6258,6259],{"class":3042},"audiobookRepository",[2991,6261,6262],{"class":3004}," = audiobookRepository;\n",[2991,6264,6265],{"class":2993,"line":3672},[2991,6266,3547],{"class":3004},[2991,6268,6269],{"class":2993,"line":3677},[2991,6270,3293],{"emptyLinePlaceholder":3292},[2991,6272,6273],{"class":2993,"line":3682},[2991,6274,3950],{"class":2997},[2991,6276,6277],{"class":2993,"line":3688},[2991,6278,6279],{"class":2997},"     * Маппінг рядка ResultSet у Author із підключенням lazy-loader.\n",[2991,6281,6282],{"class":2993,"line":3694},[2991,6283,4205],{"class":2997},[2991,6285,6286],{"class":2993,"line":3700},[2991,6287,6288],{"class":2997},"     * \u003Cb>Критично важлива деталь:\u003C/b> ми захоплюємо {@code authorId}\n",[2991,6290,6291],{"class":2993,"line":3705},[2991,6292,6293],{"class":2997},"     * в локальну final-змінну перед передачею в лямбду. Це необхідно,\n",[2991,6295,6296],{"class":2993,"line":4024},[2991,6297,6298],{"class":2997},"     * оскільки лямбда може виконатися пізніше ніж {@code mapRow()},\n",[2991,6300,6301],{"class":2993,"line":4042},[2991,6302,6303],{"class":2997},"     * і локальна змінна повинна бути effectively final.\n",[2991,6305,6306],{"class":2993,"line":4047},[2991,6307,3965],{"class":2997},[2991,6309,6310,6312],{"class":2993,"line":4052},[2991,6311,4335],{"class":3004},[2991,6313,4338],{"class":3027},[2991,6315,6316,6319,6321,6324,6326,6329,6332,6335,6338,6341],{"class":2993,"line":4058},[2991,6317,6318],{"class":3020},"    protected",[2991,6320,3028],{"class":3027},[2991,6322,6323],{"class":3139}," mapRow",[2991,6325,3171],{"class":3004},[2991,6327,6328],{"class":3027},"ResultSet",[2991,6330,6331],{"class":3042}," rs",[2991,6333,6334],{"class":3004},") ",[2991,6336,6337],{"class":3020},"throws",[2991,6339,6340],{"class":3027}," SQLException",[2991,6342,3031],{"class":3004},[2991,6344,6345],{"class":2993,"line":4064},[2991,6346,6347],{"class":2997},"        // Крок 1: Завантажити основні поля автора (без аудіокниг)\n",[2991,6349,6350,6353,6355,6357,6359,6361],{"class":2993,"line":4070},[2991,6351,6352],{"class":3027},"        Author",[2991,6354,3133],{"class":3042},[2991,6356,3136],{"class":3004},[2991,6358,4254],{"class":3202},[2991,6360,3028],{"class":3139},[2991,6362,6182],{"class":3004},[2991,6364,6365,6368,6370,6373,6375,6379],{"class":2993,"line":4075},[2991,6366,6367],{"class":3042},"            rs",[2991,6369,3165],{"class":3004},[2991,6371,6372],{"class":3139},"getString",[2991,6374,3171],{"class":3004},[2991,6376,6378],{"class":6377},"sbdoH","\"first_name\"",[2991,6380,6381],{"class":3004},"),\n",[2991,6383,6384,6386,6388,6390,6392,6395],{"class":2993,"line":4093},[2991,6385,6367],{"class":3042},[2991,6387,3165],{"class":3004},[2991,6389,6372],{"class":3139},[2991,6391,3171],{"class":3004},[2991,6393,6394],{"class":6377},"\"last_name\"",[2991,6396,6397],{"class":3004},")\n",[2991,6399,6400],{"class":2993,"line":4098},[2991,6401,6402],{"class":3004},"        );\n",[2991,6404,6405,6408,6410,6413,6415,6418,6420,6423,6425,6428,6430,6432,6434,6437],{"class":2993,"line":4103},[2991,6406,6407],{"class":3042},"        author",[2991,6409,3165],{"class":3004},[2991,6411,6412],{"class":3139},"setId",[2991,6414,3171],{"class":3004},[2991,6416,6417],{"class":3042},"rs",[2991,6419,3165],{"class":3004},[2991,6421,6422],{"class":3139},"getObject",[2991,6424,3171],{"class":3004},[2991,6426,6427],{"class":6377},"\"id\"",[2991,6429,3409],{"class":3004},[2991,6431,5304],{"class":3042},[2991,6433,3165],{"class":3004},[2991,6435,6436],{"class":3042},"class",[2991,6438,6439],{"class":3004},"));\n",[2991,6441,6442,6444,6446,6449,6451,6453,6455,6457,6459,6462],{"class":2993,"line":4109},[2991,6443,6407],{"class":3042},[2991,6445,3165],{"class":3004},[2991,6447,6448],{"class":3139},"setBio",[2991,6450,3171],{"class":3004},[2991,6452,6417],{"class":3042},[2991,6454,3165],{"class":3004},[2991,6456,6372],{"class":3139},[2991,6458,3171],{"class":3004},[2991,6460,6461],{"class":6377},"\"bio\"",[2991,6463,6439],{"class":3004},[2991,6465,6466,6468,6470,6473,6475,6477,6479,6481,6483,6486],{"class":2993,"line":4115},[2991,6467,6407],{"class":3042},[2991,6469,3165],{"class":3004},[2991,6471,6472],{"class":3139},"setImagePath",[2991,6474,3171],{"class":3004},[2991,6476,6417],{"class":3042},[2991,6478,3165],{"class":3004},[2991,6480,6372],{"class":3139},[2991,6482,3171],{"class":3004},[2991,6484,6485],{"class":6377},"\"image_path\"",[2991,6487,6439],{"class":3004},[2991,6489,6490],{"class":2993,"line":4129},[2991,6491,3293],{"emptyLinePlaceholder":3292},[2991,6493,6494],{"class":2993,"line":4135},[2991,6495,6496],{"class":2997},"        // Крок 2: Захопити ID у effectively final-змінну для лямбди\n",[2991,6498,6499,6502,6505,6507,6509,6511,6513],{"class":2993,"line":4140},[2991,6500,6501],{"class":3027},"        UUID",[2991,6503,6504],{"class":3042}," authorId",[2991,6506,3136],{"class":3004},[2991,6508,3174],{"class":3042},[2991,6510,3165],{"class":3004},[2991,6512,3179],{"class":3139},[2991,6514,3287],{"class":3004},[2991,6516,6517],{"class":2993,"line":4168},[2991,6518,3293],{"emptyLinePlaceholder":3292},[2991,6520,6521],{"class":2993,"line":4181},[2991,6522,6523],{"class":2997},"        // Крок 3: Підключити lazy-loader — SQL не виконується зараз!\n",[2991,6525,6526],{"class":2993,"line":4186},[2991,6527,6528],{"class":2997},"        // Лямбда () -> ... буде викликана лише при author.getAudiobooks()\n",[2991,6530,6531,6533,6535,6538],{"class":2993,"line":4191},[2991,6532,6407],{"class":3042},[2991,6534,3165],{"class":3004},[2991,6536,6537],{"class":3139},"initLazyAudiobooks",[2991,6539,6182],{"class":3004},[2991,6541,6542,6545,6548,6550,6552,6554],{"class":2993,"line":4196},[2991,6543,6544],{"class":3004},"            () ",[2991,6546,6547],{"class":3020},"->",[2991,6549,6167],{"class":3042},[2991,6551,3165],{"class":3004},[2991,6553,3168],{"class":3139},[2991,6555,6556],{"class":3004},"(authorId)\n",[2991,6558,6559],{"class":2993,"line":4202},[2991,6560,6402],{"class":3004},[2991,6562,6563],{"class":2993,"line":4208},[2991,6564,3293],{"emptyLinePlaceholder":3292},[2991,6566,6567,6569],{"class":2993,"line":4214},[2991,6568,4373],{"class":3202},[2991,6570,3206],{"class":3004},[2991,6572,6573],{"class":2993,"line":4220},[2991,6574,6575],{"class":2997},"        // В цей момент: 1 SELECT (автор) виконано, 0 SELECT для аудіокниг\n",[2991,6577,6578],{"class":2993,"line":4225},[2991,6579,3547],{"class":3004},[2991,6581,6582],{"class":2993,"line":4239},[2991,6583,3102],{"class":3004},[2964,6585,6586,6589,6590,6593,6594,6597,6598,6601,6602,6605,6606,6609,6610,6612,6613,6615],{},[2977,6587,6588],{},"Ключова деталь"," у рядку ",[2968,6591,6592],{},"UUID authorId = author.getId()",": лямбда ",[2968,6595,6596],{},"() -> audiobookRepository.findByAuthorId(authorId)"," захоплює ",[2968,6599,6600],{},"authorId"," зі стеку методу ",[2968,6603,6604],{},"mapRow()",". Якби ми написали ",[2968,6607,6608],{},"() -> audiobookRepository.findByAuthorId(author.getId())"," — це теж спрацювало б, але ",[2968,6611,3174],{}," мусить бути effectively final. Явна ",[2968,6614,6600],{},"-змінна є більш читабельним і явним рішенням.",[3353,6617],{},[2959,6619,6621,6624,6625],{"id":6620},"audiobookrepository-метод-findbyauthorid",[2968,6622,6623],{},"AudiobookRepository",": Метод ",[2968,6626,3168],{},[2964,6628,6629,6630,6632,6633,3253],{},"Для роботи lazy-loader необхідно реалізувати метод ",[2968,6631,3168],{}," у ",[2968,6634,6635],{},"JdbcAudiobookRepository",[2982,6637,6639],{"className":3011,"code":6638,"language":3013,"meta":3732,"style":2987},"package com.example.audiobook.repository.jdbc;\n\nimport com.example.audiobook.db.ConnectionManager;\nimport com.example.audiobook.db.DatabaseException;\nimport com.example.audiobook.domain.Audiobook;\nimport com.example.audiobook.domain.Author;\nimport com.example.audiobook.domain.Genre;\nimport com.example.audiobook.repository.AudiobookRepository;\n\nimport java.sql.*;\nimport java.util.ArrayList;\nimport java.util.List;\nimport java.util.UUID;\n\n/**\n * JDBC-репозиторій аудіокниг.\n * Реалізує {@link #findByAuthorId} — запит, необхідний для Lazy Loading\n * у {@link com.example.audiobook.domain.Author#getAudiobooks()}.\n */\npublic class JdbcAudiobookRepository\n        extends AbstractJdbcRepository\u003CAudiobook, UUID>\n        implements AudiobookRepository {\n\n    public JdbcAudiobookRepository(\n            ConnectionManager cm,\n            com.example.audiobook.repository.strategy.SqlStrategy\u003CAudiobook> strategy) {\n        super(cm, strategy);\n    }\n\n    /**\n     * Завантажує всі аудіокниги зазначеного автора.\n     * \u003Cp>\n     * Це метод, що викликається lazy-loader'ом при першому зверненні\n     * до {@link com.example.audiobook.domain.Author#getAudiobooks()}.\n     *\n     * @param authorId UUID автора\n     * @return список аудіокниг; порожній список якщо немає жодної\n     */\n    @Override\n    public List\u003CAudiobook> findByAuthorId(UUID authorId) {\n        String sql = \"\"\"\n            SELECT ab.id,\n                   ab.title,\n                   ab.year,\n                   ab.price,\n                   ab.description,\n                   ab.cover_path,\n                   a.id           AS author_id,\n                   a.first_name,\n                   a.last_name,\n                   g.id           AS genre_id,\n                   g.name         AS genre_name\n            FROM audiobooks ab\n            JOIN authors a ON ab.author_id = a.id\n            JOIN genres  g ON ab.genre_id  = g.id\n            WHERE ab.author_id = ?\n            ORDER BY ab.year DESC, ab.title ASC\n            \"\"\";\n\n        try (Connection conn = connectionManager.getConnection();\n             PreparedStatement stmt = conn.prepareStatement(sql)) {\n\n            stmt.setObject(1, authorId);\n            try (ResultSet rs = stmt.executeQuery()) {\n                List\u003CAudiobook> result = new ArrayList\u003C>();\n                while (rs.next()) {\n                    result.add(mapRow(rs));\n                }\n                return result;\n            }\n        } catch (SQLException e) {\n            throw new DatabaseException(\"findByAuthorId failed for authorId=\" + authorId, e);\n        }\n    }\n\n    /**\n     * Маппінг рядка ResultSet у Audiobook.\n     * \u003Cp>\n     * У запиті {@link #findByAuthorId} вже є JOIN з авторами і жанрами,\n     * тому маппінг одразу включає ці дані — без додаткових SELECT.\n     */\n    @Override\n    protected Audiobook mapRow(ResultSet rs) throws SQLException {\n        // Маппінг автора (скорочений — тільки для відображення)\n        Author author = new Author(\n            rs.getString(\"first_name\"),\n            rs.getString(\"last_name\")\n        );\n        author.setId(rs.getObject(\"author_id\", UUID.class));\n\n        // Маппінг жанру\n        Genre genre = new Genre(rs.getString(\"genre_name\"));\n        genre.setId(rs.getObject(\"genre_id\", UUID.class));\n\n        // Маппінг книги\n        Audiobook book = new Audiobook(\n            rs.getString(\"title\"),\n            author,\n            genre\n        );\n        book.setId(rs.getObject(\"id\", UUID.class));\n        book.setYear(rs.getInt(\"year\"));\n        book.setDescription(rs.getString(\"description\"));\n        book.setCoverPath(rs.getString(\"cover_path\"));\n\n        // price може бути null (безкоштовна книга)\n        java.math.BigDecimal price = rs.getBigDecimal(\"price\");\n        if (price != null) {\n            book.setPrice(price);\n        }\n\n        return book;\n    }\n}\n",[2968,6640,6641,6647,6651,6657,6664,6670,6676,6683,6689,6693,6700,6706,6712,6718,6722,6726,6731,6736,6752,6756,6765,6782,6790,6794,6803,6811,6845,6851,6855,6859,6863,6868,6872,6877,6892,6896,6907,6916,6920,6926,6948,6961,6966,6971,6976,6981,6986,6991,6996,7001,7006,7011,7016,7021,7026,7031,7036,7041,7048,7052,7078,7099,7103,7122,7146,7169,7185,7203,7208,7216,7221,7239,7258,7262,7266,7270,7274,7279,7283,7288,7293,7297,7303,7326,7331,7345,7359,7373,7377,7408,7412,7417,7447,7479,7483,7488,7504,7519,7524,7529,7533,7564,7589,7613,7637,7641,7646,7681,7692,7705,7709,7713,7720,7724],{"__ignoreMap":2987},[2991,6642,6643,6645],{"class":2993,"line":2994},[2991,6644,3739],{"class":3020},[2991,6646,5986],{"class":3004},[2991,6648,6649],{"class":2993,"line":3001},[2991,6650,3293],{"emptyLinePlaceholder":3292},[2991,6652,6653,6655],{"class":2993,"line":3049},[2991,6654,3751],{"class":3020},[2991,6656,5997],{"class":3004},[2991,6658,6659,6661],{"class":2993,"line":3062},[2991,6660,3751],{"class":3020},[2991,6662,6663],{"class":3004}," com.example.audiobook.db.DatabaseException;\n",[2991,6665,6666,6668],{"class":2993,"line":3074},[2991,6667,3751],{"class":3020},[2991,6669,6011],{"class":3004},[2991,6671,6672,6674],{"class":2993,"line":3099},[2991,6673,3751],{"class":3020},[2991,6675,6004],{"class":3004},[2991,6677,6678,6680],{"class":2993,"line":3514},[2991,6679,3751],{"class":3020},[2991,6681,6682],{"class":3004}," com.example.audiobook.domain.Genre;\n",[2991,6684,6685,6687],{"class":2993,"line":3520},[2991,6686,3751],{"class":3020},[2991,6688,6018],{"class":3004},[2991,6690,6691],{"class":2993,"line":3526},[2991,6692,3293],{"emptyLinePlaceholder":3292},[2991,6694,6695,6697],{"class":2993,"line":3532},[2991,6696,3751],{"class":3020},[2991,6698,6699],{"class":3004}," java.sql.*;\n",[2991,6701,6702,6704],{"class":2993,"line":3538},[2991,6703,3751],{"class":3020},[2991,6705,3761],{"class":3004},[2991,6707,6708,6710],{"class":2993,"line":3544},[2991,6709,3751],{"class":3020},[2991,6711,3775],{"class":3004},[2991,6713,6714,6716],{"class":2993,"line":3550},[2991,6715,3751],{"class":3020},[2991,6717,5085],{"class":3004},[2991,6719,6720],{"class":2993,"line":3555},[2991,6721,3293],{"emptyLinePlaceholder":3292},[2991,6723,6724],{"class":2993,"line":3561},[2991,6725,3798],{"class":2997},[2991,6727,6728],{"class":2993,"line":3567},[2991,6729,6730],{"class":2997}," * JDBC-репозиторій аудіокниг.\n",[2991,6732,6733],{"class":2993,"line":3572},[2991,6734,6735],{"class":2997}," * Реалізує {@link #findByAuthorId} — запит, необхідний для Lazy Loading\n",[2991,6737,6738,6741,6743,6746,6748,6750],{"class":2993,"line":3577},[2991,6739,6740],{"class":2997}," * у {",[2991,6742,3855],{"class":3020},[2991,6744,6745],{"class":3027}," com.example.audiobook.domain.Author",[2991,6747,6086],{"class":2997},[2991,6749,3339],{"class":3042},[2991,6751,4017],{"class":2997},[2991,6753,6754],{"class":2993,"line":3582},[2991,6755,3912],{"class":2997},[2991,6757,6758,6760,6762],{"class":2993,"line":3587},[2991,6759,3021],{"class":3020},[2991,6761,3024],{"class":3020},[2991,6763,6764],{"class":3027}," JdbcAudiobookRepository\n",[2991,6766,6767,6770,6772,6774,6776,6778,6780],{"class":2993,"line":3593},[2991,6768,6769],{"class":3020},"        extends",[2991,6771,6109],{"class":3027},[2991,6773,3082],{"class":3004},[2991,6775,2974],{"class":3027},[2991,6777,3409],{"class":3004},[2991,6779,5304],{"class":3027},[2991,6781,6120],{"class":3004},[2991,6783,6784,6786,6788],{"class":2993,"line":3599},[2991,6785,6125],{"class":3020},[2991,6787,6164],{"class":3027},[2991,6789,3031],{"class":3004},[2991,6791,6792],{"class":2993,"line":3605},[2991,6793,3293],{"emptyLinePlaceholder":3292},[2991,6795,6796,6798,6801],{"class":2993,"line":3611},[2991,6797,4143],{"class":3020},[2991,6799,6800],{"class":3139}," JdbcAudiobookRepository",[2991,6802,6182],{"class":3004},[2991,6804,6805,6807,6809],{"class":2993,"line":3617},[2991,6806,6187],{"class":3027},[2991,6808,6190],{"class":3042},[2991,6810,6193],{"class":3004},[2991,6812,6813,6815,6817,6819,6821,6823,6825,6827,6829,6831,6833,6835,6837,6839,6841,6843],{"class":2993,"line":3622},[2991,6814,6198],{"class":3027},[2991,6816,3165],{"class":3004},[2991,6818,6203],{"class":3027},[2991,6820,3165],{"class":3004},[2991,6822,6208],{"class":3027},[2991,6824,3165],{"class":3004},[2991,6826,6213],{"class":3027},[2991,6828,3165],{"class":3004},[2991,6830,6218],{"class":3027},[2991,6832,3165],{"class":3004},[2991,6834,6223],{"class":3027},[2991,6836,3082],{"class":3004},[2991,6838,2974],{"class":3027},[2991,6840,3087],{"class":3004},[2991,6842,6218],{"class":3042},[2991,6844,4165],{"class":3004},[2991,6846,6847,6849],{"class":2993,"line":3627},[2991,6848,6247],{"class":3020},[2991,6850,6250],{"class":3004},[2991,6852,6853],{"class":2993,"line":3632},[2991,6854,3547],{"class":3004},[2991,6856,6857],{"class":2993,"line":3637},[2991,6858,3293],{"emptyLinePlaceholder":3292},[2991,6860,6861],{"class":2993,"line":3642},[2991,6862,3950],{"class":2997},[2991,6864,6865],{"class":2993,"line":3648},[2991,6866,6867],{"class":2997},"     * Завантажує всі аудіокниги зазначеного автора.\n",[2991,6869,6870],{"class":2993,"line":3654},[2991,6871,4205],{"class":2997},[2991,6873,6874],{"class":2993,"line":3660},[2991,6875,6876],{"class":2997},"     * Це метод, що викликається lazy-loader'ом при першому зверненні\n",[2991,6878,6879,6882,6884,6886,6888,6890],{"class":2993,"line":3666},[2991,6880,6881],{"class":2997},"     * до {",[2991,6883,3855],{"class":3020},[2991,6885,6745],{"class":3027},[2991,6887,6086],{"class":2997},[2991,6889,3339],{"class":3042},[2991,6891,4017],{"class":2997},[2991,6893,6894],{"class":2993,"line":3672},[2991,6895,4112],{"class":2997},[2991,6897,6898,6900,6902,6904],{"class":2993,"line":3677},[2991,6899,4118],{"class":2997},[2991,6901,3901],{"class":3020},[2991,6903,6504],{"class":3042},[2991,6905,6906],{"class":2997}," UUID автора\n",[2991,6908,6909,6911,6913],{"class":2993,"line":3682},[2991,6910,4118],{"class":2997},[2991,6912,4790],{"class":3020},[2991,6914,6915],{"class":2997}," список аудіокниг; порожній список якщо немає жодної\n",[2991,6917,6918],{"class":2993,"line":3688},[2991,6919,3965],{"class":2997},[2991,6921,6922,6924],{"class":2993,"line":3694},[2991,6923,4335],{"class":3004},[2991,6925,4338],{"class":3027},[2991,6927,6928,6930,6932,6934,6936,6938,6940,6942,6944,6946],{"class":2993,"line":3700},[2991,6929,4143],{"class":3020},[2991,6931,3079],{"class":3027},[2991,6933,3082],{"class":3004},[2991,6935,2974],{"class":3027},[2991,6937,3087],{"class":3004},[2991,6939,3168],{"class":3139},[2991,6941,3171],{"class":3004},[2991,6943,5304],{"class":3027},[2991,6945,6504],{"class":3042},[2991,6947,4165],{"class":3004},[2991,6949,6950,6953,6956,6958],{"class":2993,"line":3705},[2991,6951,6952],{"class":3027},"        String",[2991,6954,6955],{"class":3042}," sql",[2991,6957,3136],{"class":3004},[2991,6959,6960],{"class":6377},"\"\"\"\n",[2991,6962,6963],{"class":2993,"line":4024},[2991,6964,6965],{"class":6377},"            SELECT ab.id,\n",[2991,6967,6968],{"class":2993,"line":4042},[2991,6969,6970],{"class":6377},"                   ab.title,\n",[2991,6972,6973],{"class":2993,"line":4047},[2991,6974,6975],{"class":6377},"                   ab.year,\n",[2991,6977,6978],{"class":2993,"line":4052},[2991,6979,6980],{"class":6377},"                   ab.price,\n",[2991,6982,6983],{"class":2993,"line":4058},[2991,6984,6985],{"class":6377},"                   ab.description,\n",[2991,6987,6988],{"class":2993,"line":4064},[2991,6989,6990],{"class":6377},"                   ab.cover_path,\n",[2991,6992,6993],{"class":2993,"line":4070},[2991,6994,6995],{"class":6377},"                   a.id           AS author_id,\n",[2991,6997,6998],{"class":2993,"line":4075},[2991,6999,7000],{"class":6377},"                   a.first_name,\n",[2991,7002,7003],{"class":2993,"line":4093},[2991,7004,7005],{"class":6377},"                   a.last_name,\n",[2991,7007,7008],{"class":2993,"line":4098},[2991,7009,7010],{"class":6377},"                   g.id           AS genre_id,\n",[2991,7012,7013],{"class":2993,"line":4103},[2991,7014,7015],{"class":6377},"                   g.name         AS genre_name\n",[2991,7017,7018],{"class":2993,"line":4109},[2991,7019,7020],{"class":6377},"            FROM audiobooks ab\n",[2991,7022,7023],{"class":2993,"line":4115},[2991,7024,7025],{"class":6377},"            JOIN authors a ON ab.author_id = a.id\n",[2991,7027,7028],{"class":2993,"line":4129},[2991,7029,7030],{"class":6377},"            JOIN genres  g ON ab.genre_id  = g.id\n",[2991,7032,7033],{"class":2993,"line":4135},[2991,7034,7035],{"class":6377},"            WHERE ab.author_id = ?\n",[2991,7037,7038],{"class":2993,"line":4140},[2991,7039,7040],{"class":6377},"            ORDER BY ab.year DESC, ab.title ASC\n",[2991,7042,7043,7046],{"class":2993,"line":4168},[2991,7044,7045],{"class":6377},"            \"\"\"",[2991,7047,3046],{"class":3004},[2991,7049,7050],{"class":2993,"line":4181},[2991,7051,3293],{"emptyLinePlaceholder":3292},[2991,7053,7054,7057,7060,7063,7066,7068,7071,7073,7076],{"class":2993,"line":4186},[2991,7055,7056],{"class":3202},"        try",[2991,7058,7059],{"class":3004}," (",[2991,7061,7062],{"class":3027},"Connection",[2991,7064,7065],{"class":3042}," conn",[2991,7067,3136],{"class":3004},[2991,7069,7070],{"class":3042},"connectionManager",[2991,7072,3165],{"class":3004},[2991,7074,7075],{"class":3139},"getConnection",[2991,7077,3287],{"class":3004},[2991,7079,7080,7083,7086,7088,7091,7093,7096],{"class":2993,"line":4191},[2991,7081,7082],{"class":3027},"             PreparedStatement",[2991,7084,7085],{"class":3042}," stmt",[2991,7087,3136],{"class":3004},[2991,7089,7090],{"class":3042},"conn",[2991,7092,3165],{"class":3004},[2991,7094,7095],{"class":3139},"prepareStatement",[2991,7097,7098],{"class":3004},"(sql)) {\n",[2991,7100,7101],{"class":2993,"line":4196},[2991,7102,3293],{"emptyLinePlaceholder":3292},[2991,7104,7105,7108,7110,7113,7115,7119],{"class":2993,"line":4202},[2991,7106,7107],{"class":3042},"            stmt",[2991,7109,3165],{"class":3004},[2991,7111,7112],{"class":3139},"setObject",[2991,7114,3171],{"class":3004},[2991,7116,7118],{"class":7117},"sJj4R","1",[2991,7120,7121],{"class":3004},", authorId);\n",[2991,7123,7124,7127,7129,7131,7133,7135,7138,7140,7143],{"class":2993,"line":4208},[2991,7125,7126],{"class":3202},"            try",[2991,7128,7059],{"class":3004},[2991,7130,6328],{"class":3027},[2991,7132,6331],{"class":3042},[2991,7134,3136],{"class":3004},[2991,7136,7137],{"class":3042},"stmt",[2991,7139,3165],{"class":3004},[2991,7141,7142],{"class":3139},"executeQuery",[2991,7144,7145],{"class":3004},"()) {\n",[2991,7147,7148,7151,7153,7155,7157,7160,7162,7164,7166],{"class":2993,"line":4214},[2991,7149,7150],{"class":3027},"                List",[2991,7152,3082],{"class":3004},[2991,7154,2974],{"class":3027},[2991,7156,3087],{"class":3004},[2991,7158,7159],{"class":3042},"result",[2991,7161,3136],{"class":3004},[2991,7163,4254],{"class":3202},[2991,7165,4257],{"class":3027},[2991,7167,7168],{"class":3004},"\u003C>();\n",[2991,7170,7171,7174,7176,7178,7180,7183],{"class":2993,"line":4220},[2991,7172,7173],{"class":3202},"                while",[2991,7175,7059],{"class":3004},[2991,7177,6417],{"class":3042},[2991,7179,3165],{"class":3004},[2991,7181,7182],{"class":3139},"next",[2991,7184,7145],{"class":3004},[2991,7186,7187,7190,7192,7195,7197,7200],{"class":2993,"line":4225},[2991,7188,7189],{"class":3042},"                    result",[2991,7191,3165],{"class":3004},[2991,7193,7194],{"class":3139},"add",[2991,7196,3171],{"class":3004},[2991,7198,7199],{"class":3139},"mapRow",[2991,7201,7202],{"class":3004},"(rs));\n",[2991,7204,7205],{"class":2993,"line":4239},[2991,7206,7207],{"class":3004},"                }\n",[2991,7209,7210,7213],{"class":2993,"line":4248},[2991,7211,7212],{"class":3202},"                return",[2991,7214,7215],{"class":3004}," result;\n",[2991,7217,7218],{"class":2993,"line":4275},[2991,7219,7220],{"class":3004},"            }\n",[2991,7222,7223,7226,7229,7231,7234,7237],{"class":2993,"line":4286},[2991,7224,7225],{"class":3004},"        } ",[2991,7227,7228],{"class":3202},"catch",[2991,7230,7059],{"class":3004},[2991,7232,7233],{"class":3027},"SQLException",[2991,7235,7236],{"class":3042}," e",[2991,7238,4165],{"class":3004},[2991,7240,7241,7244,7247,7250,7252,7255],{"class":2993,"line":4292},[2991,7242,7243],{"class":3202},"            throw",[2991,7245,7246],{"class":3202}," new",[2991,7248,7249],{"class":3139}," DatabaseException",[2991,7251,3171],{"class":3004},[2991,7253,7254],{"class":6377},"\"findByAuthorId failed for authorId=\"",[2991,7256,7257],{"class":3004}," + authorId, e);\n",[2991,7259,7260],{"class":2993,"line":4297},[2991,7261,4289],{"class":3004},[2991,7263,7264],{"class":2993,"line":4302},[2991,7265,3547],{"class":3004},[2991,7267,7268],{"class":2993,"line":4307},[2991,7269,3293],{"emptyLinePlaceholder":3292},[2991,7271,7272],{"class":2993,"line":4313},[2991,7273,3950],{"class":2997},[2991,7275,7276],{"class":2993,"line":4327},[2991,7277,7278],{"class":2997},"     * Маппінг рядка ResultSet у Audiobook.\n",[2991,7280,7281],{"class":2993,"line":4332},[2991,7282,4205],{"class":2997},[2991,7284,7285],{"class":2993,"line":4341},[2991,7286,7287],{"class":2997},"     * У запиті {@link #findByAuthorId} вже є JOIN з авторами і жанрами,\n",[2991,7289,7290],{"class":2993,"line":4362},[2991,7291,7292],{"class":2997},"     * тому маппінг одразу включає ці дані — без додаткових SELECT.\n",[2991,7294,7295],{"class":2993,"line":4370},[2991,7296,3965],{"class":2997},[2991,7298,7299,7301],{"class":2993,"line":4386},[2991,7300,4335],{"class":3004},[2991,7302,4338],{"class":3027},[2991,7304,7305,7307,7310,7312,7314,7316,7318,7320,7322,7324],{"class":2993,"line":4391},[2991,7306,6318],{"class":3020},[2991,7308,7309],{"class":3027}," Audiobook",[2991,7311,6323],{"class":3139},[2991,7313,3171],{"class":3004},[2991,7315,6328],{"class":3027},[2991,7317,6331],{"class":3042},[2991,7319,6334],{"class":3004},[2991,7321,6337],{"class":3020},[2991,7323,6340],{"class":3027},[2991,7325,3031],{"class":3004},[2991,7327,7328],{"class":2993,"line":4396},[2991,7329,7330],{"class":2997},"        // Маппінг автора (скорочений — тільки для відображення)\n",[2991,7332,7333,7335,7337,7339,7341,7343],{"class":2993,"line":4401},[2991,7334,6352],{"class":3027},[2991,7336,3133],{"class":3042},[2991,7338,3136],{"class":3004},[2991,7340,4254],{"class":3202},[2991,7342,3028],{"class":3139},[2991,7344,6182],{"class":3004},[2991,7346,7347,7349,7351,7353,7355,7357],{"class":2993,"line":4407},[2991,7348,6367],{"class":3042},[2991,7350,3165],{"class":3004},[2991,7352,6372],{"class":3139},[2991,7354,3171],{"class":3004},[2991,7356,6378],{"class":6377},[2991,7358,6381],{"class":3004},[2991,7360,7361,7363,7365,7367,7369,7371],{"class":2993,"line":4413},[2991,7362,6367],{"class":3042},[2991,7364,3165],{"class":3004},[2991,7366,6372],{"class":3139},[2991,7368,3171],{"class":3004},[2991,7370,6394],{"class":6377},[2991,7372,6397],{"class":3004},[2991,7374,7375],{"class":2993,"line":4418},[2991,7376,6402],{"class":3004},[2991,7378,7379,7381,7383,7385,7387,7389,7391,7393,7395,7398,7400,7402,7404,7406],{"class":2993,"line":4424},[2991,7380,6407],{"class":3042},[2991,7382,3165],{"class":3004},[2991,7384,6412],{"class":3139},[2991,7386,3171],{"class":3004},[2991,7388,6417],{"class":3042},[2991,7390,3165],{"class":3004},[2991,7392,6422],{"class":3139},[2991,7394,3171],{"class":3004},[2991,7396,7397],{"class":6377},"\"author_id\"",[2991,7399,3409],{"class":3004},[2991,7401,5304],{"class":3042},[2991,7403,3165],{"class":3004},[2991,7405,6436],{"class":3042},[2991,7407,6439],{"class":3004},[2991,7409,7410],{"class":2993,"line":4430},[2991,7411,3293],{"emptyLinePlaceholder":3292},[2991,7413,7414],{"class":2993,"line":4435},[2991,7415,7416],{"class":2997},"        // Маппінг жанру\n",[2991,7418,7419,7422,7425,7427,7429,7432,7434,7436,7438,7440,7442,7445],{"class":2993,"line":4442},[2991,7420,7421],{"class":3027},"        Genre",[2991,7423,7424],{"class":3042}," genre",[2991,7426,3136],{"class":3004},[2991,7428,4254],{"class":3202},[2991,7430,7431],{"class":3139}," Genre",[2991,7433,3171],{"class":3004},[2991,7435,6417],{"class":3042},[2991,7437,3165],{"class":3004},[2991,7439,6372],{"class":3139},[2991,7441,3171],{"class":3004},[2991,7443,7444],{"class":6377},"\"genre_name\"",[2991,7446,6439],{"class":3004},[2991,7448,7449,7452,7454,7456,7458,7460,7462,7464,7466,7469,7471,7473,7475,7477],{"class":2993,"line":4455},[2991,7450,7451],{"class":3042},"        genre",[2991,7453,3165],{"class":3004},[2991,7455,6412],{"class":3139},[2991,7457,3171],{"class":3004},[2991,7459,6417],{"class":3042},[2991,7461,3165],{"class":3004},[2991,7463,6422],{"class":3139},[2991,7465,3171],{"class":3004},[2991,7467,7468],{"class":6377},"\"genre_id\"",[2991,7470,3409],{"class":3004},[2991,7472,5304],{"class":3042},[2991,7474,3165],{"class":3004},[2991,7476,6436],{"class":3042},[2991,7478,6439],{"class":3004},[2991,7480,7481],{"class":2993,"line":4462},[2991,7482,3293],{"emptyLinePlaceholder":3292},[2991,7484,7485],{"class":2993,"line":4476},[2991,7486,7487],{"class":2997},"        // Маппінг книги\n",[2991,7489,7490,7493,7496,7498,7500,7502],{"class":2993,"line":4481},[2991,7491,7492],{"class":3027},"        Audiobook",[2991,7494,7495],{"class":3042}," book",[2991,7497,3136],{"class":3004},[2991,7499,4254],{"class":3202},[2991,7501,7309],{"class":3139},[2991,7503,6182],{"class":3004},[2991,7505,7506,7508,7510,7512,7514,7517],{"class":2993,"line":4486},[2991,7507,6367],{"class":3042},[2991,7509,3165],{"class":3004},[2991,7511,6372],{"class":3139},[2991,7513,3171],{"class":3004},[2991,7515,7516],{"class":6377},"\"title\"",[2991,7518,6381],{"class":3004},[2991,7520,7521],{"class":2993,"line":4491},[2991,7522,7523],{"class":3004},"            author,\n",[2991,7525,7526],{"class":2993,"line":4497},[2991,7527,7528],{"class":3004},"            genre\n",[2991,7530,7531],{"class":2993,"line":4502},[2991,7532,6402],{"class":3004},[2991,7534,7535,7538,7540,7542,7544,7546,7548,7550,7552,7554,7556,7558,7560,7562],{"class":2993,"line":4507},[2991,7536,7537],{"class":3042},"        book",[2991,7539,3165],{"class":3004},[2991,7541,6412],{"class":3139},[2991,7543,3171],{"class":3004},[2991,7545,6417],{"class":3042},[2991,7547,3165],{"class":3004},[2991,7549,6422],{"class":3139},[2991,7551,3171],{"class":3004},[2991,7553,6427],{"class":6377},[2991,7555,3409],{"class":3004},[2991,7557,5304],{"class":3042},[2991,7559,3165],{"class":3004},[2991,7561,6436],{"class":3042},[2991,7563,6439],{"class":3004},[2991,7565,7566,7568,7570,7573,7575,7577,7579,7582,7584,7587],{"class":2993,"line":4514},[2991,7567,7537],{"class":3042},[2991,7569,3165],{"class":3004},[2991,7571,7572],{"class":3139},"setYear",[2991,7574,3171],{"class":3004},[2991,7576,6417],{"class":3042},[2991,7578,3165],{"class":3004},[2991,7580,7581],{"class":3139},"getInt",[2991,7583,3171],{"class":3004},[2991,7585,7586],{"class":6377},"\"year\"",[2991,7588,6439],{"class":3004},[2991,7590,7591,7593,7595,7598,7600,7602,7604,7606,7608,7611],{"class":2993,"line":4526},[2991,7592,7537],{"class":3042},[2991,7594,3165],{"class":3004},[2991,7596,7597],{"class":3139},"setDescription",[2991,7599,3171],{"class":3004},[2991,7601,6417],{"class":3042},[2991,7603,3165],{"class":3004},[2991,7605,6372],{"class":3139},[2991,7607,3171],{"class":3004},[2991,7609,7610],{"class":6377},"\"description\"",[2991,7612,6439],{"class":3004},[2991,7614,7615,7617,7619,7622,7624,7626,7628,7630,7632,7635],{"class":2993,"line":4533},[2991,7616,7537],{"class":3042},[2991,7618,3165],{"class":3004},[2991,7620,7621],{"class":3139},"setCoverPath",[2991,7623,3171],{"class":3004},[2991,7625,6417],{"class":3042},[2991,7627,3165],{"class":3004},[2991,7629,6372],{"class":3139},[2991,7631,3171],{"class":3004},[2991,7633,7634],{"class":6377},"\"cover_path\"",[2991,7636,6439],{"class":3004},[2991,7638,7639],{"class":2993,"line":4547},[2991,7640,3293],{"emptyLinePlaceholder":3292},[2991,7642,7643],{"class":2993,"line":4552},[2991,7644,7645],{"class":2997},"        // price може бути null (безкоштовна книга)\n",[2991,7647,7648,7651,7653,7656,7658,7661,7664,7666,7668,7670,7673,7675,7678],{"class":2993,"line":4557},[2991,7649,7650],{"class":3027},"        java",[2991,7652,3165],{"class":3004},[2991,7654,7655],{"class":3027},"math",[2991,7657,3165],{"class":3004},[2991,7659,7660],{"class":3027},"BigDecimal",[2991,7662,7663],{"class":3042}," price",[2991,7665,3136],{"class":3004},[2991,7667,6417],{"class":3042},[2991,7669,3165],{"class":3004},[2991,7671,7672],{"class":3139},"getBigDecimal",[2991,7674,3171],{"class":3004},[2991,7676,7677],{"class":6377},"\"price\"",[2991,7679,7680],{"class":3004},");\n",[2991,7682,7683,7685,7688,7690],{"class":2993,"line":4562},[2991,7684,4242],{"class":3202},[2991,7686,7687],{"class":3004}," (price != ",[2991,7689,4881],{"class":3020},[2991,7691,4165],{"class":3004},[2991,7693,7694,7697,7699,7702],{"class":2993,"line":4568},[2991,7695,7696],{"class":3042},"            book",[2991,7698,3165],{"class":3004},[2991,7700,7701],{"class":3139},"setPrice",[2991,7703,7704],{"class":3004},"(price);\n",[2991,7706,7707],{"class":2993,"line":4574},[2991,7708,4289],{"class":3004},[2991,7710,7711],{"class":2993,"line":4580},[2991,7712,3293],{"emptyLinePlaceholder":3292},[2991,7714,7715,7717],{"class":2993,"line":4585},[2991,7716,4373],{"class":3202},[2991,7718,7719],{"class":3004}," book;\n",[2991,7721,7722],{"class":2993,"line":4592},[2991,7723,3547],{"class":3004},[2991,7725,7726],{"class":2993,"line":4611},[2991,7727,3102],{"class":3004},[3353,7729],{},[2959,7731,7733],{"id":7732},"демонстрація-lazy-loading-у-дії","Демонстрація: Lazy Loading у дії",[2982,7735,7737],{"className":3011,"code":7736,"language":3013,"meta":3732,"style":2987},"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.persistence.LazyList;\nimport com.example.audiobook.repository.jdbc.*;\nimport com.example.audiobook.repository.strategy.SqlStrategyFactory;\n\nimport java.util.List;\nimport java.util.UUID;\n\npublic class Main {\n\n    public static void main(String[] args) {\n        ConnectionManager cm = ConnectionManager.forH2(\"./data/audiobook_db\");\n        var factory = SqlStrategyFactory.forH2();\n\n        var audiobookRepo = new JdbcAudiobookRepository(cm, factory.audiobookStrategy());\n        var authorRepo    = new JdbcAuthorRepository(cm, factory.authorStrategy(), audiobookRepo);\n        var genreRepo     = new JdbcGenreRepository(cm, factory.genreStrategy());\n\n        // ── Підготовка тестових даних ─────────────────────────────────────\n        Author franko = new Author(\"Іван\", \"Франко\");\n        authorRepo.save(franko);\n        UUID frankoId = franko.getId();\n\n        Genre proza = new Genre(\"Проза\");\n        genreRepo.save(proza);\n\n        Audiobook zakhar  = new Audiobook(\"Захар Беркут\",     franko, proza);\n        Audiobook boryslav = new Audiobook(\"Борислав сміється\", franko, proza);\n        audiobookRepo.save(zakhar);\n        audiobookRepo.save(boryslav);\n\n        // ── Сценарій 1: Lazy Loading ──────────────────────────────────────\n        System.out.println(\"=== Завантаження автора (без книг) ===\");\n        // findById виконує: SELECT ... FROM authors WHERE id = ?\n        // Книги НЕ завантажуються\n        Author loaded = authorRepo.findById(frankoId).orElseThrow();\n\n        // Перевірка: LazyList ще не завантажений\n        System.out.println(\"isAudiobooksLoaded: \" + loaded.isAudiobooksLoaded()); // false\n\n        System.out.println(\"\\n=== Перший доступ до getAudiobooks() ===\");\n        // ТУТ виконується SELECT * FROM audiobooks WHERE author_id = ?\n        List\u003CAudiobook> books = loaded.getAudiobooks(); // ← SQL виконується!\n        System.out.println(\"Книг завантажено: \" + books.size()); // 2\n        System.out.println(\"isAudiobooksLoaded: \" + loaded.isAudiobooksLoaded()); // true\n\n        System.out.println(\"\\n=== Повторний доступ до getAudiobooks() ===\");\n        List\u003CAudiobook> sameBooks = loaded.getAudiobooks(); // ← SQL НЕ виконується\n        System.out.println(\"Книг у кеші: \" + sameBooks.size()); // 2\n\n        // ── Сценарій 2: For-each із lazy-колекцією ───────────────────────\n        System.out.println(\"\\n=== Ітерація по книгах ===\");\n        for (Audiobook book : loaded.getAudiobooks()) {\n            System.out.println(\"  ✓ \" + book.getTitle()\n                + \" (\" + book.getYear() + \")\");\n        }\n\n        // ── Сценарій 3: Автор без книг ───────────────────────────────────\n        System.out.println(\"\\n=== Автор без книг ===\");\n        Author lesya = new Author(\"Леся\", \"Українка\");\n        authorRepo.save(lesya);\n\n        Author loadedLesya = authorRepo.findById(lesya.getId()).orElseThrow();\n        List\u003CAudiobook> lesyaBooks = loadedLesya.getAudiobooks(); // SQL виконується\n        System.out.println(\"Книг у Лесі: \" + lesyaBooks.size()); // 0\n        System.out.println(\"isEmpty: \" + lesyaBooks.isEmpty()); // true\n\n        // ── Сценарій 4: Інвалідація після додавання нової книги ──────────\n        System.out.println(\"\\n=== Додавання нової книги та інвалідація кешу ===\");\n        Audiobook moisey = new Audiobook(\"Мойсей\", franko, proza);\n        audiobookRepo.save(moisey);\n\n        // LazyList вже завантажений — не знає про нову книгу\n        System.out.println(\"Книг ПЕРЕД інвалідацією: \" + loaded.getAudiobooks().size()); // 2\n\n        // Інвалідуємо кеш\n        if (loaded.getAudiobooks() instanceof LazyList\u003CAudiobook> lazy) {\n            lazy.invalidate();\n        }\n        // Наступний getAudiobooks() знову виконає SQL\n        System.out.println(\"Книг ПІСЛЯ інвалідації:  \" + loaded.getAudiobooks().size()); // 3\n\n        cm.close();\n    }\n}\n",[2968,7738,7739,7746,7750,7756,7762,7768,7774,7780,7787,7794,7798,7804,7810,7814,7825,7829,7853,7877,7896,7900,7927,7953,7979,7983,7988,8013,8026,8044,8048,8068,8080,8084,8106,8127,8139,8150,8154,8159,8181,8186,8191,8215,8219,8224,8256,8260,8286,8291,8317,8347,8376,8380,8403,8428,8457,8461,8466,8489,8511,8541,8566,8570,8574,8579,8602,8627,8638,8642,8673,8700,8730,8759,8763,8768,8791,8811,8822,8826,8831,8865,8869,8874,8896,8908,8912,8917,8951,8955,8967,8971],{"__ignoreMap":2987},[2991,7740,7741,7743],{"class":2993,"line":2994},[2991,7742,3739],{"class":3020},[2991,7744,7745],{"class":3004}," com.example.audiobook;\n",[2991,7747,7748],{"class":2993,"line":3001},[2991,7749,3293],{"emptyLinePlaceholder":3292},[2991,7751,7752,7754],{"class":2993,"line":3049},[2991,7753,3751],{"class":3020},[2991,7755,5997],{"class":3004},[2991,7757,7758,7760],{"class":2993,"line":3062},[2991,7759,3751],{"class":3020},[2991,7761,6004],{"class":3004},[2991,7763,7764,7766],{"class":2993,"line":3074},[2991,7765,3751],{"class":3020},[2991,7767,6011],{"class":3004},[2991,7769,7770,7772],{"class":2993,"line":3099},[2991,7771,3751],{"class":3020},[2991,7773,6682],{"class":3004},[2991,7775,7776,7778],{"class":2993,"line":3514},[2991,7777,3751],{"class":3020},[2991,7779,5068],{"class":3004},[2991,7781,7782,7784],{"class":2993,"line":3520},[2991,7783,3751],{"class":3020},[2991,7785,7786],{"class":3004}," com.example.audiobook.repository.jdbc.*;\n",[2991,7788,7789,7791],{"class":2993,"line":3526},[2991,7790,3751],{"class":3020},[2991,7792,7793],{"class":3004}," com.example.audiobook.repository.strategy.SqlStrategyFactory;\n",[2991,7795,7796],{"class":2993,"line":3532},[2991,7797,3293],{"emptyLinePlaceholder":3292},[2991,7799,7800,7802],{"class":2993,"line":3538},[2991,7801,3751],{"class":3020},[2991,7803,3775],{"class":3004},[2991,7805,7806,7808],{"class":2993,"line":3544},[2991,7807,3751],{"class":3020},[2991,7809,5085],{"class":3004},[2991,7811,7812],{"class":2993,"line":3550},[2991,7813,3293],{"emptyLinePlaceholder":3292},[2991,7815,7816,7818,7820,7823],{"class":2993,"line":3555},[2991,7817,3021],{"class":3020},[2991,7819,3024],{"class":3020},[2991,7821,7822],{"class":3027}," Main",[2991,7824,3031],{"class":3004},[2991,7826,7827],{"class":2993,"line":3561},[2991,7828,3293],{"emptyLinePlaceholder":3292},[2991,7830,7831,7833,7836,7838,7841,7843,7845,7848,7851],{"class":2993,"line":3567},[2991,7832,4143],{"class":3020},[2991,7834,7835],{"class":3020}," static",[2991,7837,4230],{"class":3027},[2991,7839,7840],{"class":3139}," main",[2991,7842,3171],{"class":3004},[2991,7844,5280],{"class":3027},[2991,7846,7847],{"class":3004},"[] ",[2991,7849,7850],{"class":3042},"args",[2991,7852,4165],{"class":3004},[2991,7854,7855,7858,7860,7862,7865,7867,7870,7872,7875],{"class":2993,"line":3572},[2991,7856,7857],{"class":3027},"        ConnectionManager",[2991,7859,6190],{"class":3042},[2991,7861,3136],{"class":3004},[2991,7863,7864],{"class":3042},"ConnectionManager",[2991,7866,3165],{"class":3004},[2991,7868,7869],{"class":3139},"forH2",[2991,7871,3171],{"class":3004},[2991,7873,7874],{"class":6377},"\"./data/audiobook_db\"",[2991,7876,7680],{"class":3004},[2991,7878,7879,7882,7885,7887,7890,7892,7894],{"class":2993,"line":3577},[2991,7880,7881],{"class":3020},"        var",[2991,7883,7884],{"class":3042}," factory",[2991,7886,3136],{"class":3004},[2991,7888,7889],{"class":3042},"SqlStrategyFactory",[2991,7891,3165],{"class":3004},[2991,7893,7869],{"class":3139},[2991,7895,3287],{"class":3004},[2991,7897,7898],{"class":2993,"line":3582},[2991,7899,3293],{"emptyLinePlaceholder":3292},[2991,7901,7902,7904,7907,7909,7911,7913,7916,7919,7921,7924],{"class":2993,"line":3587},[2991,7903,7881],{"class":3020},[2991,7905,7906],{"class":3042}," audiobookRepo",[2991,7908,3136],{"class":3004},[2991,7910,4254],{"class":3202},[2991,7912,6800],{"class":3139},[2991,7914,7915],{"class":3004},"(cm, ",[2991,7917,7918],{"class":3042},"factory",[2991,7920,3165],{"class":3004},[2991,7922,7923],{"class":3139},"audiobookStrategy",[2991,7925,7926],{"class":3004},"());\n",[2991,7928,7929,7931,7934,7937,7939,7941,7943,7945,7947,7950],{"class":2993,"line":3593},[2991,7930,7881],{"class":3020},[2991,7932,7933],{"class":3042}," authorRepo",[2991,7935,7936],{"class":3004},"    = ",[2991,7938,4254],{"class":3202},[2991,7940,6103],{"class":3139},[2991,7942,7915],{"class":3004},[2991,7944,7918],{"class":3042},[2991,7946,3165],{"class":3004},[2991,7948,7949],{"class":3139},"authorStrategy",[2991,7951,7952],{"class":3004},"(), audiobookRepo);\n",[2991,7954,7955,7957,7960,7963,7965,7968,7970,7972,7974,7977],{"class":2993,"line":3599},[2991,7956,7881],{"class":3020},[2991,7958,7959],{"class":3042}," genreRepo",[2991,7961,7962],{"class":3004},"     = ",[2991,7964,4254],{"class":3202},[2991,7966,7967],{"class":3139}," JdbcGenreRepository",[2991,7969,7915],{"class":3004},[2991,7971,7918],{"class":3042},[2991,7973,3165],{"class":3004},[2991,7975,7976],{"class":3139},"genreStrategy",[2991,7978,7926],{"class":3004},[2991,7980,7981],{"class":2993,"line":3605},[2991,7982,3293],{"emptyLinePlaceholder":3292},[2991,7984,7985],{"class":2993,"line":3611},[2991,7986,7987],{"class":2997},"        // ── Підготовка тестових даних ─────────────────────────────────────\n",[2991,7989,7990,7992,7995,7997,7999,8001,8003,8006,8008,8011],{"class":2993,"line":3617},[2991,7991,6352],{"class":3027},[2991,7993,7994],{"class":3042}," franko",[2991,7996,3136],{"class":3004},[2991,7998,4254],{"class":3202},[2991,8000,3028],{"class":3139},[2991,8002,3171],{"class":3004},[2991,8004,8005],{"class":6377},"\"Іван\"",[2991,8007,3409],{"class":3004},[2991,8009,8010],{"class":6377},"\"Франко\"",[2991,8012,7680],{"class":3004},[2991,8014,8015,8018,8020,8023],{"class":2993,"line":3622},[2991,8016,8017],{"class":3042},"        authorRepo",[2991,8019,3165],{"class":3004},[2991,8021,8022],{"class":3139},"save",[2991,8024,8025],{"class":3004},"(franko);\n",[2991,8027,8028,8030,8033,8035,8038,8040,8042],{"class":2993,"line":3627},[2991,8029,6501],{"class":3027},[2991,8031,8032],{"class":3042}," frankoId",[2991,8034,3136],{"class":3004},[2991,8036,8037],{"class":3042},"franko",[2991,8039,3165],{"class":3004},[2991,8041,3179],{"class":3139},[2991,8043,3287],{"class":3004},[2991,8045,8046],{"class":2993,"line":3632},[2991,8047,3293],{"emptyLinePlaceholder":3292},[2991,8049,8050,8052,8055,8057,8059,8061,8063,8066],{"class":2993,"line":3637},[2991,8051,7421],{"class":3027},[2991,8053,8054],{"class":3042}," proza",[2991,8056,3136],{"class":3004},[2991,8058,4254],{"class":3202},[2991,8060,7431],{"class":3139},[2991,8062,3171],{"class":3004},[2991,8064,8065],{"class":6377},"\"Проза\"",[2991,8067,7680],{"class":3004},[2991,8069,8070,8073,8075,8077],{"class":2993,"line":3642},[2991,8071,8072],{"class":3042},"        genreRepo",[2991,8074,3165],{"class":3004},[2991,8076,8022],{"class":3139},[2991,8078,8079],{"class":3004},"(proza);\n",[2991,8081,8082],{"class":2993,"line":3648},[2991,8083,3293],{"emptyLinePlaceholder":3292},[2991,8085,8086,8088,8091,8094,8096,8098,8100,8103],{"class":2993,"line":3654},[2991,8087,7492],{"class":3027},[2991,8089,8090],{"class":3042}," zakhar",[2991,8092,8093],{"class":3004},"  = ",[2991,8095,4254],{"class":3202},[2991,8097,7309],{"class":3139},[2991,8099,3171],{"class":3004},[2991,8101,8102],{"class":6377},"\"Захар Беркут\"",[2991,8104,8105],{"class":3004},",     franko, proza);\n",[2991,8107,8108,8110,8113,8115,8117,8119,8121,8124],{"class":2993,"line":3660},[2991,8109,7492],{"class":3027},[2991,8111,8112],{"class":3042}," boryslav",[2991,8114,3136],{"class":3004},[2991,8116,4254],{"class":3202},[2991,8118,7309],{"class":3139},[2991,8120,3171],{"class":3004},[2991,8122,8123],{"class":6377},"\"Борислав сміється\"",[2991,8125,8126],{"class":3004},", franko, proza);\n",[2991,8128,8129,8132,8134,8136],{"class":2993,"line":3666},[2991,8130,8131],{"class":3042},"        audiobookRepo",[2991,8133,3165],{"class":3004},[2991,8135,8022],{"class":3139},[2991,8137,8138],{"class":3004},"(zakhar);\n",[2991,8140,8141,8143,8145,8147],{"class":2993,"line":3672},[2991,8142,8131],{"class":3042},[2991,8144,3165],{"class":3004},[2991,8146,8022],{"class":3139},[2991,8148,8149],{"class":3004},"(boryslav);\n",[2991,8151,8152],{"class":2993,"line":3677},[2991,8153,3293],{"emptyLinePlaceholder":3292},[2991,8155,8156],{"class":2993,"line":3682},[2991,8157,8158],{"class":2997},"        // ── Сценарій 1: Lazy Loading ──────────────────────────────────────\n",[2991,8160,8161,8164,8166,8169,8171,8174,8176,8179],{"class":2993,"line":3688},[2991,8162,8163],{"class":3042},"        System",[2991,8165,3165],{"class":3004},[2991,8167,8168],{"class":3042},"out",[2991,8170,3165],{"class":3004},[2991,8172,8173],{"class":3139},"println",[2991,8175,3171],{"class":3004},[2991,8177,8178],{"class":6377},"\"=== Завантаження автора (без книг) ===\"",[2991,8180,7680],{"class":3004},[2991,8182,8183],{"class":2993,"line":3694},[2991,8184,8185],{"class":2997},"        // findById виконує: SELECT ... FROM authors WHERE id = ?\n",[2991,8187,8188],{"class":2993,"line":3700},[2991,8189,8190],{"class":2997},"        // Книги НЕ завантажуються\n",[2991,8192,8193,8195,8197,8199,8202,8204,8207,8210,8213],{"class":2993,"line":3705},[2991,8194,6352],{"class":3027},[2991,8196,4376],{"class":3042},[2991,8198,3136],{"class":3004},[2991,8200,8201],{"class":3042},"authorRepo",[2991,8203,3165],{"class":3004},[2991,8205,8206],{"class":3139},"findById",[2991,8208,8209],{"class":3004},"(frankoId).",[2991,8211,8212],{"class":3139},"orElseThrow",[2991,8214,3287],{"class":3004},[2991,8216,8217],{"class":2993,"line":4024},[2991,8218,3293],{"emptyLinePlaceholder":3292},[2991,8220,8221],{"class":2993,"line":4042},[2991,8222,8223],{"class":2997},"        // Перевірка: LazyList ще не завантажений\n",[2991,8225,8226,8228,8230,8232,8234,8236,8238,8241,8244,8246,8248,8251,8253],{"class":2993,"line":4047},[2991,8227,8163],{"class":3042},[2991,8229,3165],{"class":3004},[2991,8231,8168],{"class":3042},[2991,8233,3165],{"class":3004},[2991,8235,8173],{"class":3139},[2991,8237,3171],{"class":3004},[2991,8239,8240],{"class":6377},"\"isAudiobooksLoaded: \"",[2991,8242,8243],{"class":3004}," + ",[2991,8245,4037],{"class":3042},[2991,8247,3165],{"class":3004},[2991,8249,8250],{"class":3139},"isAudiobooksLoaded",[2991,8252,3182],{"class":3004},[2991,8254,8255],{"class":2997},"// false\n",[2991,8257,8258],{"class":2993,"line":4052},[2991,8259,3293],{"emptyLinePlaceholder":3292},[2991,8261,8262,8264,8266,8268,8270,8272,8274,8277,8281,8284],{"class":2993,"line":4058},[2991,8263,8163],{"class":3042},[2991,8265,3165],{"class":3004},[2991,8267,8168],{"class":3042},[2991,8269,3165],{"class":3004},[2991,8271,8173],{"class":3139},[2991,8273,3171],{"class":3004},[2991,8275,8276],{"class":6377},"\"",[2991,8278,8280],{"class":8279},"sjcCO","\\n",[2991,8282,8283],{"class":6377},"=== Перший доступ до getAudiobooks() ===\"",[2991,8285,7680],{"class":3004},[2991,8287,8288],{"class":2993,"line":4064},[2991,8289,8290],{"class":2997},"        // ТУТ виконується SELECT * FROM audiobooks WHERE author_id = ?\n",[2991,8292,8293,8296,8298,8300,8302,8304,8306,8308,8310,8312,8314],{"class":2993,"line":4070},[2991,8294,8295],{"class":3027},"        List",[2991,8297,3082],{"class":3004},[2991,8299,2974],{"class":3027},[2991,8301,3087],{"class":3004},[2991,8303,3157],{"class":3042},[2991,8305,3136],{"class":3004},[2991,8307,4037],{"class":3042},[2991,8309,3165],{"class":3004},[2991,8311,3284],{"class":3139},[2991,8313,5549],{"class":3004},[2991,8315,8316],{"class":2997},"// ← SQL виконується!\n",[2991,8318,8319,8321,8323,8325,8327,8329,8331,8334,8336,8338,8340,8342,8344],{"class":2993,"line":4075},[2991,8320,8163],{"class":3042},[2991,8322,3165],{"class":3004},[2991,8324,8168],{"class":3042},[2991,8326,3165],{"class":3004},[2991,8328,8173],{"class":3139},[2991,8330,3171],{"class":3004},[2991,8332,8333],{"class":6377},"\"Книг завантажено: \"",[2991,8335,8243],{"class":3004},[2991,8337,3157],{"class":3042},[2991,8339,3165],{"class":3004},[2991,8341,4471],{"class":3139},[2991,8343,3182],{"class":3004},[2991,8345,8346],{"class":2997},"// 2\n",[2991,8348,8349,8351,8353,8355,8357,8359,8361,8363,8365,8367,8369,8371,8373],{"class":2993,"line":4093},[2991,8350,8163],{"class":3042},[2991,8352,3165],{"class":3004},[2991,8354,8168],{"class":3042},[2991,8356,3165],{"class":3004},[2991,8358,8173],{"class":3139},[2991,8360,3171],{"class":3004},[2991,8362,8240],{"class":6377},[2991,8364,8243],{"class":3004},[2991,8366,4037],{"class":3042},[2991,8368,3165],{"class":3004},[2991,8370,8250],{"class":3139},[2991,8372,3182],{"class":3004},[2991,8374,8375],{"class":2997},"// true\n",[2991,8377,8378],{"class":2993,"line":4098},[2991,8379,3293],{"emptyLinePlaceholder":3292},[2991,8381,8382,8384,8386,8388,8390,8392,8394,8396,8398,8401],{"class":2993,"line":4103},[2991,8383,8163],{"class":3042},[2991,8385,3165],{"class":3004},[2991,8387,8168],{"class":3042},[2991,8389,3165],{"class":3004},[2991,8391,8173],{"class":3139},[2991,8393,3171],{"class":3004},[2991,8395,8276],{"class":6377},[2991,8397,8280],{"class":8279},[2991,8399,8400],{"class":6377},"=== Повторний доступ до getAudiobooks() ===\"",[2991,8402,7680],{"class":3004},[2991,8404,8405,8407,8409,8411,8413,8415,8417,8419,8421,8423,8425],{"class":2993,"line":4109},[2991,8406,8295],{"class":3027},[2991,8408,3082],{"class":3004},[2991,8410,2974],{"class":3027},[2991,8412,3087],{"class":3004},[2991,8414,3311],{"class":3042},[2991,8416,3136],{"class":3004},[2991,8418,4037],{"class":3042},[2991,8420,3165],{"class":3004},[2991,8422,3284],{"class":3139},[2991,8424,5549],{"class":3004},[2991,8426,8427],{"class":2997},"// ← SQL НЕ виконується\n",[2991,8429,8430,8432,8434,8436,8438,8440,8442,8445,8447,8449,8451,8453,8455],{"class":2993,"line":4115},[2991,8431,8163],{"class":3042},[2991,8433,3165],{"class":3004},[2991,8435,8168],{"class":3042},[2991,8437,3165],{"class":3004},[2991,8439,8173],{"class":3139},[2991,8441,3171],{"class":3004},[2991,8443,8444],{"class":6377},"\"Книг у кеші: \"",[2991,8446,8243],{"class":3004},[2991,8448,3311],{"class":3042},[2991,8450,3165],{"class":3004},[2991,8452,4471],{"class":3139},[2991,8454,3182],{"class":3004},[2991,8456,8346],{"class":2997},[2991,8458,8459],{"class":2993,"line":4129},[2991,8460,3293],{"emptyLinePlaceholder":3292},[2991,8462,8463],{"class":2993,"line":4135},[2991,8464,8465],{"class":2997},"        // ── Сценарій 2: For-each із lazy-колекцією ───────────────────────\n",[2991,8467,8468,8470,8472,8474,8476,8478,8480,8482,8484,8487],{"class":2993,"line":4140},[2991,8469,8163],{"class":3042},[2991,8471,3165],{"class":3004},[2991,8473,8168],{"class":3042},[2991,8475,3165],{"class":3004},[2991,8477,8173],{"class":3139},[2991,8479,3171],{"class":3004},[2991,8481,8276],{"class":6377},[2991,8483,8280],{"class":8279},[2991,8485,8486],{"class":6377},"=== Ітерація по книгах ===\"",[2991,8488,7680],{"class":3004},[2991,8490,8491,8494,8496,8498,8500,8503,8505,8507,8509],{"class":2993,"line":4168},[2991,8492,8493],{"class":3202},"        for",[2991,8495,7059],{"class":3004},[2991,8497,2974],{"class":3027},[2991,8499,7495],{"class":3042},[2991,8501,8502],{"class":3202}," :",[2991,8504,4376],{"class":3042},[2991,8506,3165],{"class":3004},[2991,8508,3284],{"class":3139},[2991,8510,7145],{"class":3004},[2991,8512,8513,8516,8518,8520,8522,8524,8526,8529,8531,8534,8536,8539],{"class":2993,"line":4181},[2991,8514,8515],{"class":3042},"            System",[2991,8517,3165],{"class":3004},[2991,8519,8168],{"class":3042},[2991,8521,3165],{"class":3004},[2991,8523,8173],{"class":3139},[2991,8525,3171],{"class":3004},[2991,8527,8528],{"class":6377},"\"  ✓ \"",[2991,8530,8243],{"class":3004},[2991,8532,8533],{"class":3042},"book",[2991,8535,3165],{"class":3004},[2991,8537,8538],{"class":3139},"getTitle",[2991,8540,5709],{"class":3004},[2991,8542,8543,8546,8549,8551,8553,8555,8558,8561,8564],{"class":2993,"line":4186},[2991,8544,8545],{"class":3004},"                + ",[2991,8547,8548],{"class":6377},"\" (\"",[2991,8550,8243],{"class":3004},[2991,8552,8533],{"class":3042},[2991,8554,3165],{"class":3004},[2991,8556,8557],{"class":3139},"getYear",[2991,8559,8560],{"class":3004},"() + ",[2991,8562,8563],{"class":6377},"\")\"",[2991,8565,7680],{"class":3004},[2991,8567,8568],{"class":2993,"line":4191},[2991,8569,4289],{"class":3004},[2991,8571,8572],{"class":2993,"line":4196},[2991,8573,3293],{"emptyLinePlaceholder":3292},[2991,8575,8576],{"class":2993,"line":4202},[2991,8577,8578],{"class":2997},"        // ── Сценарій 3: Автор без книг ───────────────────────────────────\n",[2991,8580,8581,8583,8585,8587,8589,8591,8593,8595,8597,8600],{"class":2993,"line":4208},[2991,8582,8163],{"class":3042},[2991,8584,3165],{"class":3004},[2991,8586,8168],{"class":3042},[2991,8588,3165],{"class":3004},[2991,8590,8173],{"class":3139},[2991,8592,3171],{"class":3004},[2991,8594,8276],{"class":6377},[2991,8596,8280],{"class":8279},[2991,8598,8599],{"class":6377},"=== Автор без книг ===\"",[2991,8601,7680],{"class":3004},[2991,8603,8604,8606,8609,8611,8613,8615,8617,8620,8622,8625],{"class":2993,"line":4214},[2991,8605,6352],{"class":3027},[2991,8607,8608],{"class":3042}," lesya",[2991,8610,3136],{"class":3004},[2991,8612,4254],{"class":3202},[2991,8614,3028],{"class":3139},[2991,8616,3171],{"class":3004},[2991,8618,8619],{"class":6377},"\"Леся\"",[2991,8621,3409],{"class":3004},[2991,8623,8624],{"class":6377},"\"Українка\"",[2991,8626,7680],{"class":3004},[2991,8628,8629,8631,8633,8635],{"class":2993,"line":4220},[2991,8630,8017],{"class":3042},[2991,8632,3165],{"class":3004},[2991,8634,8022],{"class":3139},[2991,8636,8637],{"class":3004},"(lesya);\n",[2991,8639,8640],{"class":2993,"line":4225},[2991,8641,3293],{"emptyLinePlaceholder":3292},[2991,8643,8644,8646,8649,8651,8653,8655,8657,8659,8662,8664,8666,8669,8671],{"class":2993,"line":4239},[2991,8645,6352],{"class":3027},[2991,8647,8648],{"class":3042}," loadedLesya",[2991,8650,3136],{"class":3004},[2991,8652,8201],{"class":3042},[2991,8654,3165],{"class":3004},[2991,8656,8206],{"class":3139},[2991,8658,3171],{"class":3004},[2991,8660,8661],{"class":3042},"lesya",[2991,8663,3165],{"class":3004},[2991,8665,3179],{"class":3139},[2991,8667,8668],{"class":3004},"()).",[2991,8670,8212],{"class":3139},[2991,8672,3287],{"class":3004},[2991,8674,8675,8677,8679,8681,8683,8686,8688,8691,8693,8695,8697],{"class":2993,"line":4248},[2991,8676,8295],{"class":3027},[2991,8678,3082],{"class":3004},[2991,8680,2974],{"class":3027},[2991,8682,3087],{"class":3004},[2991,8684,8685],{"class":3042},"lesyaBooks",[2991,8687,3136],{"class":3004},[2991,8689,8690],{"class":3042},"loadedLesya",[2991,8692,3165],{"class":3004},[2991,8694,3284],{"class":3139},[2991,8696,5549],{"class":3004},[2991,8698,8699],{"class":2997},"// SQL виконується\n",[2991,8701,8702,8704,8706,8708,8710,8712,8714,8717,8719,8721,8723,8725,8727],{"class":2993,"line":4275},[2991,8703,8163],{"class":3042},[2991,8705,3165],{"class":3004},[2991,8707,8168],{"class":3042},[2991,8709,3165],{"class":3004},[2991,8711,8173],{"class":3139},[2991,8713,3171],{"class":3004},[2991,8715,8716],{"class":6377},"\"Книг у Лесі: \"",[2991,8718,8243],{"class":3004},[2991,8720,8685],{"class":3042},[2991,8722,3165],{"class":3004},[2991,8724,4471],{"class":3139},[2991,8726,3182],{"class":3004},[2991,8728,8729],{"class":2997},"// 0\n",[2991,8731,8732,8734,8736,8738,8740,8742,8744,8747,8749,8751,8753,8755,8757],{"class":2993,"line":4286},[2991,8733,8163],{"class":3042},[2991,8735,3165],{"class":3004},[2991,8737,8168],{"class":3042},[2991,8739,3165],{"class":3004},[2991,8741,8173],{"class":3139},[2991,8743,3171],{"class":3004},[2991,8745,8746],{"class":6377},"\"isEmpty: \"",[2991,8748,8243],{"class":3004},[2991,8750,8685],{"class":3042},[2991,8752,3165],{"class":3004},[2991,8754,4542],{"class":3139},[2991,8756,3182],{"class":3004},[2991,8758,8375],{"class":2997},[2991,8760,8761],{"class":2993,"line":4292},[2991,8762,3293],{"emptyLinePlaceholder":3292},[2991,8764,8765],{"class":2993,"line":4297},[2991,8766,8767],{"class":2997},"        // ── Сценарій 4: Інвалідація після додавання нової книги ──────────\n",[2991,8769,8770,8772,8774,8776,8778,8780,8782,8784,8786,8789],{"class":2993,"line":4302},[2991,8771,8163],{"class":3042},[2991,8773,3165],{"class":3004},[2991,8775,8168],{"class":3042},[2991,8777,3165],{"class":3004},[2991,8779,8173],{"class":3139},[2991,8781,3171],{"class":3004},[2991,8783,8276],{"class":6377},[2991,8785,8280],{"class":8279},[2991,8787,8788],{"class":6377},"=== Додавання нової книги та інвалідація кешу ===\"",[2991,8790,7680],{"class":3004},[2991,8792,8793,8795,8798,8800,8802,8804,8806,8809],{"class":2993,"line":4307},[2991,8794,7492],{"class":3027},[2991,8796,8797],{"class":3042}," moisey",[2991,8799,3136],{"class":3004},[2991,8801,4254],{"class":3202},[2991,8803,7309],{"class":3139},[2991,8805,3171],{"class":3004},[2991,8807,8808],{"class":6377},"\"Мойсей\"",[2991,8810,8126],{"class":3004},[2991,8812,8813,8815,8817,8819],{"class":2993,"line":4313},[2991,8814,8131],{"class":3042},[2991,8816,3165],{"class":3004},[2991,8818,8022],{"class":3139},[2991,8820,8821],{"class":3004},"(moisey);\n",[2991,8823,8824],{"class":2993,"line":4327},[2991,8825,3293],{"emptyLinePlaceholder":3292},[2991,8827,8828],{"class":2993,"line":4332},[2991,8829,8830],{"class":2997},"        // LazyList вже завантажений — не знає про нову книгу\n",[2991,8832,8833,8835,8837,8839,8841,8843,8845,8848,8850,8852,8854,8856,8859,8861,8863],{"class":2993,"line":4341},[2991,8834,8163],{"class":3042},[2991,8836,3165],{"class":3004},[2991,8838,8168],{"class":3042},[2991,8840,3165],{"class":3004},[2991,8842,8173],{"class":3139},[2991,8844,3171],{"class":3004},[2991,8846,8847],{"class":6377},"\"Книг ПЕРЕД інвалідацією: \"",[2991,8849,8243],{"class":3004},[2991,8851,4037],{"class":3042},[2991,8853,3165],{"class":3004},[2991,8855,3284],{"class":3139},[2991,8857,8858],{"class":3004},"().",[2991,8860,4471],{"class":3139},[2991,8862,3182],{"class":3004},[2991,8864,8346],{"class":2997},[2991,8866,8867],{"class":2993,"line":4362},[2991,8868,3293],{"emptyLinePlaceholder":3292},[2991,8870,8871],{"class":2993,"line":4370},[2991,8872,8873],{"class":2997},"        // Інвалідуємо кеш\n",[2991,8875,8876,8878,8880,8882,8884,8886,8889,8891,8893],{"class":2993,"line":4386},[2991,8877,4242],{"class":3202},[2991,8879,7059],{"class":3004},[2991,8881,4037],{"class":3042},[2991,8883,3165],{"class":3004},[2991,8885,3284],{"class":3139},[2991,8887,8888],{"class":3004},"() ",[2991,8890,5688],{"class":3020},[2991,8892,3921],{"class":3027},[2991,8894,8895],{"class":3004},"\u003CAudiobook> lazy) {\n",[2991,8897,8898,8901,8903,8906],{"class":2993,"line":4391},[2991,8899,8900],{"class":3042},"            lazy",[2991,8902,3165],{"class":3004},[2991,8904,8905],{"class":3139},"invalidate",[2991,8907,3287],{"class":3004},[2991,8909,8910],{"class":2993,"line":4396},[2991,8911,4289],{"class":3004},[2991,8913,8914],{"class":2993,"line":4401},[2991,8915,8916],{"class":2997},"        // Наступний getAudiobooks() знову виконає SQL\n",[2991,8918,8919,8921,8923,8925,8927,8929,8931,8934,8936,8938,8940,8942,8944,8946,8948],{"class":2993,"line":4407},[2991,8920,8163],{"class":3042},[2991,8922,3165],{"class":3004},[2991,8924,8168],{"class":3042},[2991,8926,3165],{"class":3004},[2991,8928,8173],{"class":3139},[2991,8930,3171],{"class":3004},[2991,8932,8933],{"class":6377},"\"Книг ПІСЛЯ інвалідації:  \"",[2991,8935,8243],{"class":3004},[2991,8937,4037],{"class":3042},[2991,8939,3165],{"class":3004},[2991,8941,3284],{"class":3139},[2991,8943,8858],{"class":3004},[2991,8945,4471],{"class":3139},[2991,8947,3182],{"class":3004},[2991,8949,8950],{"class":2997},"// 3\n",[2991,8952,8953],{"class":2993,"line":4413},[2991,8954,3293],{"emptyLinePlaceholder":3292},[2991,8956,8957,8960,8962,8965],{"class":2993,"line":4418},[2991,8958,8959],{"class":3042},"        cm",[2991,8961,3165],{"class":3004},[2991,8963,8964],{"class":3139},"close",[2991,8966,3287],{"class":3004},[2991,8968,8969],{"class":2993,"line":4424},[2991,8970,3547],{"class":3004},[2991,8972,8973],{"class":2993,"line":4430},[2991,8974,3102],{"class":3004},[8976,8977,8979,8991,9001,9004,9011,9020,9028,9031,9038,9045,9049,9056,9059,9066,9076,9080,9083,9090,9094,9098,9101,9108,9114,9121,9125,9132,9135,9142,9146,9153,9159,9163],"terminal-preview",{":cursor":4088,"title":8978},"java Main",[8980,8981,8983,3401,8988],"div",{"className":8982},[2993],[2991,8984,8987],{"className":8985},[8986],"opacity-40","$",[2977,8989,8990],{},"java -cp . com.example.audiobook.Main",[8980,8992,8994,9000],{"className":8993},[2993],[2991,8995,8999],{"className":8996},[8997,8998],"text-blue-400","font-bold","[Pool]"," Ініціалізовано: 2 з'єднань готові",[8980,9002],{"className":9003},[2993],[8980,9005,9007],{"className":9006},[2993],[2991,9008,9010],{"className":9009},[8998],"=== Завантаження автора (без книг) ===",[8980,9012,9014,9019],{"className":9013},[2993],[2991,9015,9018],{"className":9016},[9017],"text-yellow-400","[SQL]"," SELECT id, first_name, last_name, bio, image_path FROM authors WHERE id = ?",[8980,9021,9023,9024],{"className":9022},[2993],"isAudiobooksLoaded: ",[2991,9025,4088],{"className":9026},[9027],"text-red-400",[8980,9029],{"className":9030},[2993],[8980,9032,9034],{"className":9033},[2993],[2991,9035,9037],{"className":9036},[8998],"=== Перший доступ до getAudiobooks() ===",[8980,9039,9041,9044],{"className":9040},[2993],[2991,9042,9018],{"className":9043},[9017]," SELECT ab.id, ab.title, ... FROM audiobooks ab JOIN authors a ... WHERE ab.author_id = ?",[8980,9046,9048],{"className":9047},[2993],"Книг завантажено: 2",[8980,9050,9023,9052],{"className":9051},[2993],[2991,9053,4281],{"className":9054},[9055],"text-green-400",[8980,9057],{"className":9058},[2993],[8980,9060,9062],{"className":9061},[2993],[2991,9063,9065],{"className":9064},[8998],"=== Повторний доступ до getAudiobooks() ===",[8980,9067,9069,3401,9073],{"className":9068},[2993],[2991,9070,9072],{"className":9071},[9055],"✓",[3366,9074,9075],{},"Cache hit — SQL не виконується",[8980,9077,9079],{"className":9078},[2993],"Книг у кеші: 2",[8980,9081],{"className":9082},[2993],[8980,9084,9086],{"className":9085},[2993],[2991,9087,9089],{"className":9088},[8998],"=== Ітерація по книгах ===",[8980,9091,9093],{"className":9092},[2993],"  ✓ Борислав сміється (1881)",[8980,9095,9097],{"className":9096},[2993],"  ✓ Захар Беркут (1883)",[8980,9099],{"className":9100},[2993],[8980,9102,9104],{"className":9103},[2993],[2991,9105,9107],{"className":9106},[8998],"=== Автор без книг ===",[8980,9109,9111,9019],{"className":9110},[2993],[2991,9112,9018],{"className":9113},[9017],[8980,9115,9117,9120],{"className":9116},[2993],[2991,9118,9018],{"className":9119},[9017]," SELECT ab.id, ... FROM audiobooks ab ... WHERE ab.author_id = ?",[8980,9122,9124],{"className":9123},[2993],"Книг у Лесі: 0",[8980,9126,9128,9129],{"className":9127},[2993],"isEmpty: ",[2991,9130,4281],{"className":9131},[9055],[8980,9133],{"className":9134},[2993],[8980,9136,9138],{"className":9137},[2993],[2991,9139,9141],{"className":9140},[8998],"=== Додавання нової книги та інвалідація кешу ===",[8980,9143,9145],{"className":9144},[2993],"Книг ПЕРЕД інвалідацією: 2",[8980,9147,9149,9152],{"className":9148},[2993],[2991,9150,9072],{"className":9151},[9055]," LazyList інвалідовано",[8980,9154,9156,9120],{"className":9155},[2993],[2991,9157,9018],{"className":9158},[9017],[8980,9160,9162],{"className":9161},[2993],"Книг ПІСЛЯ інвалідації: 3",[8980,9164,9166,9169],{"className":9165},[2993],[2991,9167,8999],{"className":9168},[8997,8998]," Закрито. Закрито 2 з'єднань",[2959,9171,9173],{"id":9172},"n1-query-problem-аналіз-і-рішення","N+1 Query Problem: Аналіз і Рішення",[2964,9175,9176,9177,9179],{},"Як було згадано на початку статті, Lazy Loading ",[2977,9178,3335],{}," N+1 проблему, але не вирішує її. Розглянемо конкретний сценарій:",[2982,9181,9183],{"className":3011,"code":9182,"language":3013,"meta":2987,"style":2987},"// Сценарій: відображення каталогу авторів з кількістю книг\nList\u003CAuthor> authors = authorRepo.findAll(); // 1 SELECT → 100 авторів\n\nfor (Author author : authors) {\n    // getAudiobooks() → LazyList.ensureLoaded() → findByAuthorId() → SELECT\n    int bookCount = author.getAudiobooks().size();\n    System.out.println(author.getLastName() + \": \" + bookCount + \" книг\");\n}\n// Разом: 1 + 100 = 101 SELECT\n",[2968,9184,9185,9190,9217,9221,9237,9242,9264,9299,9303],{"__ignoreMap":2987},[2991,9186,9187],{"class":2993,"line":2994},[2991,9188,9189],{"class":2997},"// Сценарій: відображення каталогу авторів з кількістю книг\n",[2991,9191,9192,9194,9196,9198,9200,9203,9205,9207,9209,9212,9214],{"class":2993,"line":3001},[2991,9193,3148],{"class":3027},[2991,9195,3082],{"class":3004},[2991,9197,2970],{"class":3027},[2991,9199,3087],{"class":3004},[2991,9201,9202],{"class":3042},"authors",[2991,9204,3136],{"class":3004},[2991,9206,8201],{"class":3042},[2991,9208,3165],{"class":3004},[2991,9210,9211],{"class":3139},"findAll",[2991,9213,5549],{"class":3004},[2991,9215,9216],{"class":2997},"// 1 SELECT → 100 авторів\n",[2991,9218,9219],{"class":2993,"line":3049},[2991,9220,3293],{"emptyLinePlaceholder":3292},[2991,9222,9223,9226,9228,9230,9232,9234],{"class":2993,"line":3062},[2991,9224,9225],{"class":3202},"for",[2991,9227,7059],{"class":3004},[2991,9229,2970],{"class":3027},[2991,9231,3133],{"class":3042},[2991,9233,8502],{"class":3202},[2991,9235,9236],{"class":3004}," authors) {\n",[2991,9238,9239],{"class":2993,"line":3074},[2991,9240,9241],{"class":2997},"    // getAudiobooks() → LazyList.ensureLoaded() → findByAuthorId() → SELECT\n",[2991,9243,9244,9247,9250,9252,9254,9256,9258,9260,9262],{"class":2993,"line":3099},[2991,9245,9246],{"class":3027},"    int",[2991,9248,9249],{"class":3042}," bookCount",[2991,9251,3136],{"class":3004},[2991,9253,3174],{"class":3042},[2991,9255,3165],{"class":3004},[2991,9257,3284],{"class":3139},[2991,9259,8858],{"class":3004},[2991,9261,4471],{"class":3139},[2991,9263,3287],{"class":3004},[2991,9265,9266,9269,9271,9273,9275,9277,9279,9281,9283,9286,9288,9291,9294,9297],{"class":2993,"line":3514},[2991,9267,9268],{"class":3042},"    System",[2991,9270,3165],{"class":3004},[2991,9272,8168],{"class":3042},[2991,9274,3165],{"class":3004},[2991,9276,8173],{"class":3139},[2991,9278,3171],{"class":3004},[2991,9280,3174],{"class":3042},[2991,9282,3165],{"class":3004},[2991,9284,9285],{"class":3139},"getLastName",[2991,9287,8560],{"class":3004},[2991,9289,9290],{"class":6377},"\": \"",[2991,9292,9293],{"class":3004}," + bookCount + ",[2991,9295,9296],{"class":6377},"\" книг\"",[2991,9298,7680],{"class":3004},[2991,9300,9301],{"class":2993,"line":3520},[2991,9302,3102],{"class":3004},[2991,9304,9305],{"class":2993,"line":3526},[2991,9306,9307],{"class":2997},"// Разом: 1 + 100 = 101 SELECT\n",[3475,9309,9310],{},[2982,9311,9313],{"className":3479,"code":9312,"language":3475,"meta":2987,"style":2987},"sequenceDiagram\n    participant App as Клієнтський код\n    participant AR as AuthorRepository\n    participant AL as LazyList [×100]\n    participant BR as AudiobookRepository\n    participant DB as База даних\n\n    App->>AR: findAll()\n    AR->>DB: SELECT * FROM authors\n    DB-->>AR: 100 рядків\n    AR-->>App: List[Author × 100]\n\n    loop для кожного Author (100 ітерацій)\n        App->>AL: author.getAudiobooks().size()\n        AL->>BR: findByAuthorId(author.getId())\n        BR->>DB: SELECT * FROM audiobooks WHERE author_id=?\n        DB-->>BR: N рядків\n        BR-->>AL: List[Audiobook]\n        AL-->>App: size()\n    end\n\n    Note over DB: Разом: 1 + 100 = 101 SELECT!\n",[2968,9314,9315,9320,9325,9330,9335,9340,9345,9349,9354,9359,9364,9369,9373,9378,9383,9388,9393,9398,9403,9408,9413,9417],{"__ignoreMap":2987},[2991,9316,9317],{"class":2993,"line":2994},[2991,9318,9319],{},"sequenceDiagram\n",[2991,9321,9322],{"class":2993,"line":3001},[2991,9323,9324],{},"    participant App as Клієнтський код\n",[2991,9326,9327],{"class":2993,"line":3049},[2991,9328,9329],{},"    participant AR as AuthorRepository\n",[2991,9331,9332],{"class":2993,"line":3062},[2991,9333,9334],{},"    participant AL as LazyList [×100]\n",[2991,9336,9337],{"class":2993,"line":3074},[2991,9338,9339],{},"    participant BR as AudiobookRepository\n",[2991,9341,9342],{"class":2993,"line":3099},[2991,9343,9344],{},"    participant DB as База даних\n",[2991,9346,9347],{"class":2993,"line":3514},[2991,9348,3293],{"emptyLinePlaceholder":3292},[2991,9350,9351],{"class":2993,"line":3520},[2991,9352,9353],{},"    App->>AR: findAll()\n",[2991,9355,9356],{"class":2993,"line":3526},[2991,9357,9358],{},"    AR->>DB: SELECT * FROM authors\n",[2991,9360,9361],{"class":2993,"line":3532},[2991,9362,9363],{},"    DB-->>AR: 100 рядків\n",[2991,9365,9366],{"class":2993,"line":3538},[2991,9367,9368],{},"    AR-->>App: List[Author × 100]\n",[2991,9370,9371],{"class":2993,"line":3544},[2991,9372,3293],{"emptyLinePlaceholder":3292},[2991,9374,9375],{"class":2993,"line":3550},[2991,9376,9377],{},"    loop для кожного Author (100 ітерацій)\n",[2991,9379,9380],{"class":2993,"line":3555},[2991,9381,9382],{},"        App->>AL: author.getAudiobooks().size()\n",[2991,9384,9385],{"class":2993,"line":3561},[2991,9386,9387],{},"        AL->>BR: findByAuthorId(author.getId())\n",[2991,9389,9390],{"class":2993,"line":3567},[2991,9391,9392],{},"        BR->>DB: SELECT * FROM audiobooks WHERE author_id=?\n",[2991,9394,9395],{"class":2993,"line":3572},[2991,9396,9397],{},"        DB-->>BR: N рядків\n",[2991,9399,9400],{"class":2993,"line":3577},[2991,9401,9402],{},"        BR-->>AL: List[Audiobook]\n",[2991,9404,9405],{"class":2993,"line":3582},[2991,9406,9407],{},"        AL-->>App: size()\n",[2991,9409,9410],{"class":2993,"line":3587},[2991,9411,9412],{},"    end\n",[2991,9414,9415],{"class":2993,"line":3593},[2991,9416,3293],{"emptyLinePlaceholder":3292},[2991,9418,9419],{"class":2993,"line":3599},[2991,9420,9421],{},"    Note over DB: Разом: 1 + 100 = 101 SELECT!\n",[3110,9423,9425],{"id":9424},"рішення-1-join-eager-зі-одним-запитом","Рішення 1: JOIN (Eager зі одним запитом)",[2964,9427,9428,9429,9432],{},"Завантажити авторів разом з кількістю книг в ",[2977,9430,9431],{},"одному"," запиті:",[2982,9434,9436],{"className":3011,"code":9435,"language":3013,"meta":2987,"style":2987},"/**\n * Завантажує авторів з кількістю аудіокниг — один JOIN-запит замість N+1.\n * Підходить коли потрібна лише агрегована інформація (count),\n * а не повна колекція аудіокниг.\n */\npublic List\u003CAuthorWithBookCount> findAllWithBookCount() {\n    String sql = \"\"\"\n        SELECT a.id,\n               a.first_name,\n               a.last_name,\n               COUNT(ab.id) AS book_count\n        FROM authors a\n        LEFT JOIN audiobooks ab ON a.id = ab.author_id\n        GROUP BY a.id, a.first_name, a.last_name\n        ORDER BY a.last_name\n        \"\"\";\n    // ... виконати і змапити у List\u003CAuthorWithBookCount>\n}\n",[2968,9437,9438,9442,9447,9452,9457,9461,9475,9486,9491,9496,9501,9506,9511,9516,9521,9526,9533,9538],{"__ignoreMap":2987},[2991,9439,9440],{"class":2993,"line":2994},[2991,9441,3798],{"class":2997},[2991,9443,9444],{"class":2993,"line":3001},[2991,9445,9446],{"class":2997}," * Завантажує авторів з кількістю аудіокниг — один JOIN-запит замість N+1.\n",[2991,9448,9449],{"class":2993,"line":3049},[2991,9450,9451],{"class":2997}," * Підходить коли потрібна лише агрегована інформація (count),\n",[2991,9453,9454],{"class":2993,"line":3062},[2991,9455,9456],{"class":2997}," * а не повна колекція аудіокниг.\n",[2991,9458,9459],{"class":2993,"line":3074},[2991,9460,3912],{"class":2997},[2991,9462,9463,9465,9467,9470,9473],{"class":2993,"line":3099},[2991,9464,3021],{"class":3020},[2991,9466,3079],{"class":3027},[2991,9468,9469],{"class":3004},"\u003CAuthorWithBookCount> ",[2991,9471,9472],{"class":3139},"findAllWithBookCount",[2991,9474,4236],{"class":3004},[2991,9476,9477,9480,9482,9484],{"class":2993,"line":3514},[2991,9478,9479],{"class":3027},"    String",[2991,9481,6955],{"class":3042},[2991,9483,3136],{"class":3004},[2991,9485,6960],{"class":6377},[2991,9487,9488],{"class":2993,"line":3520},[2991,9489,9490],{"class":6377},"        SELECT a.id,\n",[2991,9492,9493],{"class":2993,"line":3526},[2991,9494,9495],{"class":6377},"               a.first_name,\n",[2991,9497,9498],{"class":2993,"line":3532},[2991,9499,9500],{"class":6377},"               a.last_name,\n",[2991,9502,9503],{"class":2993,"line":3538},[2991,9504,9505],{"class":6377},"               COUNT(ab.id) AS book_count\n",[2991,9507,9508],{"class":2993,"line":3544},[2991,9509,9510],{"class":6377},"        FROM authors a\n",[2991,9512,9513],{"class":2993,"line":3550},[2991,9514,9515],{"class":6377},"        LEFT JOIN audiobooks ab ON a.id = ab.author_id\n",[2991,9517,9518],{"class":2993,"line":3555},[2991,9519,9520],{"class":6377},"        GROUP BY a.id, a.first_name, a.last_name\n",[2991,9522,9523],{"class":2993,"line":3561},[2991,9524,9525],{"class":6377},"        ORDER BY a.last_name\n",[2991,9527,9528,9531],{"class":2993,"line":3567},[2991,9529,9530],{"class":6377},"        \"\"\"",[2991,9532,3046],{"class":3004},[2991,9534,9535],{"class":2993,"line":3572},[2991,9536,9537],{"class":2997},"    // ... виконати і змапити у List\u003CAuthorWithBookCount>\n",[2991,9539,9540],{"class":2993,"line":3577},[2991,9541,3102],{"class":3004},[2964,9543,9544,9545,9548],{},"Результат: ",[2977,9546,9547],{},"1 SELECT"," замість 101, незалежно від кількості авторів.",[3110,9550,9552],{"id":9551},"рішення-2-batch-loading-завантаження-усіх-книг-для-усіх-авторів","Рішення 2: Batch Loading (завантаження усіх книг для усіх авторів)",[2964,9554,9555,9556,9559,9560,3253],{},"Якщо потрібні повні колекції (а не лише count), Batch Loading завантажує всі аудіокниги для всіх авторів ",[2977,9557,9558],{},"одним запитом"," через ",[2968,9561,9562],{},"IN (...)",[2982,9564,9566],{"className":3011,"code":9565,"language":3013,"meta":3732,"style":2987},"/**\n * Завантажує авторів і підтягує їх аудіокниги одним додатковим SELECT.\n * Разом: 2 запити замість N+1.\n * \u003Cp>\n * Алгоритм:\n * 1. SELECT * FROM authors                             → 1 запит\n * 2. SELECT * FROM audiobooks WHERE author_id IN (?, ?, ...) → 1 запит\n * 3. Розподілити книги по авторах у Java\n */\npublic List\u003CAuthor> findAllWithAudiobooks() {\n    // Крок 1: Завантажити всіх авторів (без книг)\n    List\u003CAuthor> authors = findAll();\n    if (authors.isEmpty()) return authors;\n\n    // Крок 2: Зібрати всі ID авторів\n    List\u003CUUID> authorIds = authors.stream()\n        .map(Author::getId)\n        .toList();\n\n    // Крок 3: Завантажити всі книги для всіх авторів — один запит з IN (...)\n    Map\u003CUUID, List\u003CAudiobook>> booksByAuthor = audiobookRepository.findByAuthorIds(authorIds);\n\n    // Крок 4: Розподілити книги по авторах у Java (без SQL)\n    for (Author author : authors) {\n        List\u003CAudiobook> books = booksByAuthor.getOrDefault(author.getId(), List.of());\n        author.setAudiobooks(books); // встановити завантажений список (не LazyList)\n    }\n\n    return authors;\n    // Разом: 2 SELECT незалежно від кількості авторів!\n}\n",[2968,9567,9568,9572,9577,9582,9586,9591,9596,9601,9606,9610,9624,9629,9648,9669,9673,9678,9702,9719,9728,9732,9737,9771,9775,9780,9795,9835,9849,9853,9857,9864,9869],{"__ignoreMap":2987},[2991,9569,9570],{"class":2993,"line":2994},[2991,9571,3798],{"class":2997},[2991,9573,9574],{"class":2993,"line":3001},[2991,9575,9576],{"class":2997}," * Завантажує авторів і підтягує їх аудіокниги одним додатковим SELECT.\n",[2991,9578,9579],{"class":2993,"line":3049},[2991,9580,9581],{"class":2997}," * Разом: 2 запити замість N+1.\n",[2991,9583,9584],{"class":2993,"line":3062},[2991,9585,3808],{"class":2997},[2991,9587,9588],{"class":2993,"line":3074},[2991,9589,9590],{"class":2997}," * Алгоритм:\n",[2991,9592,9593],{"class":2993,"line":3099},[2991,9594,9595],{"class":2997}," * 1. SELECT * FROM authors                             → 1 запит\n",[2991,9597,9598],{"class":2993,"line":3514},[2991,9599,9600],{"class":2997}," * 2. SELECT * FROM audiobooks WHERE author_id IN (?, ?, ...) → 1 запит\n",[2991,9602,9603],{"class":2993,"line":3520},[2991,9604,9605],{"class":2997}," * 3. Розподілити книги по авторах у Java\n",[2991,9607,9608],{"class":2993,"line":3526},[2991,9609,3912],{"class":2997},[2991,9611,9612,9614,9616,9619,9622],{"class":2993,"line":3532},[2991,9613,3021],{"class":3020},[2991,9615,3079],{"class":3027},[2991,9617,9618],{"class":3004},"\u003CAuthor> ",[2991,9620,9621],{"class":3139},"findAllWithAudiobooks",[2991,9623,4236],{"class":3004},[2991,9625,9626],{"class":2993,"line":3538},[2991,9627,9628],{"class":2997},"    // Крок 1: Завантажити всіх авторів (без книг)\n",[2991,9630,9631,9634,9636,9638,9640,9642,9644,9646],{"class":2993,"line":3544},[2991,9632,9633],{"class":3027},"    List",[2991,9635,3082],{"class":3004},[2991,9637,2970],{"class":3027},[2991,9639,3087],{"class":3004},[2991,9641,9202],{"class":3042},[2991,9643,3136],{"class":3004},[2991,9645,9211],{"class":3139},[2991,9647,3287],{"class":3004},[2991,9649,9650,9653,9655,9657,9659,9661,9664,9666],{"class":2993,"line":3550},[2991,9651,9652],{"class":3202},"    if",[2991,9654,7059],{"class":3004},[2991,9656,9202],{"class":3042},[2991,9658,3165],{"class":3004},[2991,9660,4542],{"class":3139},[2991,9662,9663],{"class":3004},"()) ",[2991,9665,3203],{"class":3202},[2991,9667,9668],{"class":3004}," authors;\n",[2991,9670,9671],{"class":2993,"line":3555},[2991,9672,3293],{"emptyLinePlaceholder":3292},[2991,9674,9675],{"class":2993,"line":3561},[2991,9676,9677],{"class":2997},"    // Крок 2: Зібрати всі ID авторів\n",[2991,9679,9680,9682,9684,9686,9688,9691,9693,9695,9697,9700],{"class":2993,"line":3567},[2991,9681,9633],{"class":3027},[2991,9683,3082],{"class":3004},[2991,9685,5304],{"class":3027},[2991,9687,3087],{"class":3004},[2991,9689,9690],{"class":3042},"authorIds",[2991,9692,3136],{"class":3004},[2991,9694,9202],{"class":3042},[2991,9696,3165],{"class":3004},[2991,9698,9699],{"class":3139},"stream",[2991,9701,5709],{"class":3004},[2991,9703,9704,9707,9710,9713,9716],{"class":2993,"line":3572},[2991,9705,9706],{"class":3004},"        .",[2991,9708,9709],{"class":3139},"map",[2991,9711,9712],{"class":3004},"(Author",[2991,9714,9715],{"class":3202},"::",[2991,9717,9718],{"class":3004},"getId)\n",[2991,9720,9721,9723,9726],{"class":2993,"line":3577},[2991,9722,9706],{"class":3004},[2991,9724,9725],{"class":3139},"toList",[2991,9727,3287],{"class":3004},[2991,9729,9730],{"class":2993,"line":3582},[2991,9731,3293],{"emptyLinePlaceholder":3292},[2991,9733,9734],{"class":2993,"line":3587},[2991,9735,9736],{"class":2997},"    // Крок 3: Завантажити всі книги для всіх авторів — один запит з IN (...)\n",[2991,9738,9739,9742,9744,9746,9748,9750,9752,9754,9756,9759,9761,9763,9765,9768],{"class":2993,"line":3593},[2991,9740,9741],{"class":3027},"    Map",[2991,9743,3082],{"class":3004},[2991,9745,5304],{"class":3027},[2991,9747,3409],{"class":3004},[2991,9749,3148],{"class":3027},[2991,9751,3082],{"class":3004},[2991,9753,2974],{"class":3027},[2991,9755,3986],{"class":3004},[2991,9757,9758],{"class":3042},"booksByAuthor",[2991,9760,3136],{"class":3004},[2991,9762,6259],{"class":3042},[2991,9764,3165],{"class":3004},[2991,9766,9767],{"class":3139},"findByAuthorIds",[2991,9769,9770],{"class":3004},"(authorIds);\n",[2991,9772,9773],{"class":2993,"line":3599},[2991,9774,3293],{"emptyLinePlaceholder":3292},[2991,9776,9777],{"class":2993,"line":3605},[2991,9778,9779],{"class":2997},"    // Крок 4: Розподілити книги по авторах у Java (без SQL)\n",[2991,9781,9782,9785,9787,9789,9791,9793],{"class":2993,"line":3611},[2991,9783,9784],{"class":3202},"    for",[2991,9786,7059],{"class":3004},[2991,9788,2970],{"class":3027},[2991,9790,3133],{"class":3042},[2991,9792,8502],{"class":3202},[2991,9794,9236],{"class":3004},[2991,9796,9797,9799,9801,9803,9805,9807,9809,9811,9813,9816,9818,9820,9822,9824,9827,9829,9831,9833],{"class":2993,"line":3617},[2991,9798,8295],{"class":3027},[2991,9800,3082],{"class":3004},[2991,9802,2974],{"class":3027},[2991,9804,3087],{"class":3004},[2991,9806,3157],{"class":3042},[2991,9808,3136],{"class":3004},[2991,9810,9758],{"class":3042},[2991,9812,3165],{"class":3004},[2991,9814,9815],{"class":3139},"getOrDefault",[2991,9817,3171],{"class":3004},[2991,9819,3174],{"class":3042},[2991,9821,3165],{"class":3004},[2991,9823,3179],{"class":3139},[2991,9825,9826],{"class":3004},"(), ",[2991,9828,3148],{"class":3042},[2991,9830,3165],{"class":3004},[2991,9832,5546],{"class":3139},[2991,9834,7926],{"class":3004},[2991,9836,9837,9839,9841,9843,9846],{"class":2993,"line":3622},[2991,9838,6407],{"class":3042},[2991,9840,3165],{"class":3004},[2991,9842,3194],{"class":3139},[2991,9844,9845],{"class":3004},"(books); ",[2991,9847,9848],{"class":2997},"// встановити завантажений список (не LazyList)\n",[2991,9850,9851],{"class":2993,"line":3627},[2991,9852,3547],{"class":3004},[2991,9854,9855],{"class":2993,"line":3632},[2991,9856,3293],{"emptyLinePlaceholder":3292},[2991,9858,9859,9862],{"class":2993,"line":3637},[2991,9860,9861],{"class":3202},"    return",[2991,9863,9668],{"class":3004},[2991,9865,9866],{"class":2993,"line":3642},[2991,9867,9868],{"class":2997},"    // Разом: 2 SELECT незалежно від кількості авторів!\n",[2991,9870,9871],{"class":2993,"line":3648},[2991,9872,3102],{"class":3004},[2982,9874,9876],{"className":3011,"code":9875,"language":3013,"meta":2987,"style":2987},"// AudiobookRepository: метод для batch loading\npublic Map\u003CUUID, List\u003CAudiobook>> findByAuthorIds(List\u003CUUID> authorIds) {\n    // Генеруємо IN (?, ?, ?, ...) динамічно\n    String placeholders = authorIds.stream()\n        .map(id -> \"?\")\n        .collect(java.util.stream.Collectors.joining(\", \"));\n\n    String sql = \"\"\"\n        SELECT ab.*, a.first_name, a.last_name, g.id AS genre_id, g.name AS genre_name\n        FROM audiobooks ab\n        JOIN authors a ON ab.author_id = a.id\n        JOIN genres  g ON ab.genre_id  = g.id\n        WHERE ab.author_id IN (%s)\n        ORDER BY ab.author_id, ab.year DESC\n        \"\"\".formatted(placeholders);\n\n    Map\u003CUUID, List\u003CAudiobook>> result = new java.util.LinkedHashMap\u003C>();\n    try (Connection conn = connectionManager.getConnection();\n         PreparedStatement stmt = conn.prepareStatement(sql)) {\n\n        // Встановити всі ID як параметри\n        for (int i = 0; i \u003C authorIds.size(); i++) {\n            stmt.setObject(i + 1, authorIds.get(i));\n        }\n\n        try (ResultSet rs = stmt.executeQuery()) {\n            while (rs.next()) {\n                UUID authorId = rs.getObject(\"author_id\", UUID.class);\n                Audiobook book = mapRow(rs);\n                result.computeIfAbsent(authorId, k -> new ArrayList\u003C>()).add(book);\n            }\n        }\n    } catch (SQLException e) {\n        throw new DatabaseException(\"findByAuthorIds failed\", e);\n    }\n    return result;\n}\n",[2968,9877,9878,9883,9907,9912,9929,9945,9982,9986,9996,10001,10006,10011,10016,10021,10026,10038,10042,10080,10101,10118,10122,10127,10155,10179,10183,10187,10207,10222,10251,10264,10291,10295,10299,10314,10331,10335,10341],{"__ignoreMap":2987},[2991,9879,9880],{"class":2993,"line":2994},[2991,9881,9882],{"class":2997},"// AudiobookRepository: метод для batch loading\n",[2991,9884,9885,9887,9890,9893,9895,9898,9900,9902,9904],{"class":2993,"line":3001},[2991,9886,3021],{"class":3020},[2991,9888,9889],{"class":3027}," Map",[2991,9891,9892],{"class":3004},"\u003CUUID, ",[2991,9894,3148],{"class":3027},[2991,9896,9897],{"class":3004},"\u003CAudiobook>> ",[2991,9899,9767],{"class":3139},[2991,9901,3171],{"class":3004},[2991,9903,3148],{"class":3027},[2991,9905,9906],{"class":3004},"\u003CUUID> authorIds) {\n",[2991,9908,9909],{"class":2993,"line":3049},[2991,9910,9911],{"class":2997},"    // Генеруємо IN (?, ?, ?, ...) динамічно\n",[2991,9913,9914,9916,9919,9921,9923,9925,9927],{"class":2993,"line":3062},[2991,9915,9479],{"class":3027},[2991,9917,9918],{"class":3042}," placeholders",[2991,9920,3136],{"class":3004},[2991,9922,9690],{"class":3042},[2991,9924,3165],{"class":3004},[2991,9926,9699],{"class":3139},[2991,9928,5709],{"class":3004},[2991,9930,9931,9933,9935,9938,9940,9943],{"class":2993,"line":3074},[2991,9932,9706],{"class":3004},[2991,9934,9709],{"class":3139},[2991,9936,9937],{"class":3004},"(id ",[2991,9939,6547],{"class":3020},[2991,9941,9942],{"class":6377}," \"?\"",[2991,9944,6397],{"class":3004},[2991,9946,9947,9949,9952,9954,9956,9958,9961,9963,9965,9967,9970,9972,9975,9977,9980],{"class":2993,"line":3099},[2991,9948,9706],{"class":3004},[2991,9950,9951],{"class":3139},"collect",[2991,9953,3171],{"class":3004},[2991,9955,3013],{"class":3042},[2991,9957,3165],{"class":3004},[2991,9959,9960],{"class":3042},"util",[2991,9962,3165],{"class":3004},[2991,9964,9699],{"class":3042},[2991,9966,3165],{"class":3004},[2991,9968,9969],{"class":3042},"Collectors",[2991,9971,3165],{"class":3004},[2991,9973,9974],{"class":3139},"joining",[2991,9976,3171],{"class":3004},[2991,9978,9979],{"class":6377},"\", \"",[2991,9981,6439],{"class":3004},[2991,9983,9984],{"class":2993,"line":3514},[2991,9985,3293],{"emptyLinePlaceholder":3292},[2991,9987,9988,9990,9992,9994],{"class":2993,"line":3520},[2991,9989,9479],{"class":3027},[2991,9991,6955],{"class":3042},[2991,9993,3136],{"class":3004},[2991,9995,6960],{"class":6377},[2991,9997,9998],{"class":2993,"line":3526},[2991,9999,10000],{"class":6377},"        SELECT ab.*, a.first_name, a.last_name, g.id AS genre_id, g.name AS genre_name\n",[2991,10002,10003],{"class":2993,"line":3532},[2991,10004,10005],{"class":6377},"        FROM audiobooks ab\n",[2991,10007,10008],{"class":2993,"line":3538},[2991,10009,10010],{"class":6377},"        JOIN authors a ON ab.author_id = a.id\n",[2991,10012,10013],{"class":2993,"line":3544},[2991,10014,10015],{"class":6377},"        JOIN genres  g ON ab.genre_id  = g.id\n",[2991,10017,10018],{"class":2993,"line":3550},[2991,10019,10020],{"class":6377},"        WHERE ab.author_id IN (%s)\n",[2991,10022,10023],{"class":2993,"line":3555},[2991,10024,10025],{"class":6377},"        ORDER BY ab.author_id, ab.year DESC\n",[2991,10027,10028,10030,10032,10035],{"class":2993,"line":3561},[2991,10029,9530],{"class":6377},[2991,10031,3165],{"class":3004},[2991,10033,10034],{"class":3139},"formatted",[2991,10036,10037],{"class":3004},"(placeholders);\n",[2991,10039,10040],{"class":2993,"line":3567},[2991,10041,3293],{"emptyLinePlaceholder":3292},[2991,10043,10044,10046,10048,10050,10052,10054,10056,10058,10060,10062,10064,10066,10069,10071,10073,10075,10078],{"class":2993,"line":3572},[2991,10045,9741],{"class":3027},[2991,10047,3082],{"class":3004},[2991,10049,5304],{"class":3027},[2991,10051,3409],{"class":3004},[2991,10053,3148],{"class":3027},[2991,10055,3082],{"class":3004},[2991,10057,2974],{"class":3027},[2991,10059,3986],{"class":3004},[2991,10061,7159],{"class":3042},[2991,10063,3136],{"class":3004},[2991,10065,4254],{"class":3202},[2991,10067,10068],{"class":3027}," java",[2991,10070,3165],{"class":3004},[2991,10072,9960],{"class":3027},[2991,10074,3165],{"class":3004},[2991,10076,10077],{"class":3027},"LinkedHashMap",[2991,10079,7168],{"class":3004},[2991,10081,10082,10085,10087,10089,10091,10093,10095,10097,10099],{"class":2993,"line":3577},[2991,10083,10084],{"class":3202},"    try",[2991,10086,7059],{"class":3004},[2991,10088,7062],{"class":3027},[2991,10090,7065],{"class":3042},[2991,10092,3136],{"class":3004},[2991,10094,7070],{"class":3042},[2991,10096,3165],{"class":3004},[2991,10098,7075],{"class":3139},[2991,10100,3287],{"class":3004},[2991,10102,10103,10106,10108,10110,10112,10114,10116],{"class":2993,"line":3582},[2991,10104,10105],{"class":3027},"         PreparedStatement",[2991,10107,7085],{"class":3042},[2991,10109,3136],{"class":3004},[2991,10111,7090],{"class":3042},[2991,10113,3165],{"class":3004},[2991,10115,7095],{"class":3139},[2991,10117,7098],{"class":3004},[2991,10119,10120],{"class":2993,"line":3587},[2991,10121,3293],{"emptyLinePlaceholder":3292},[2991,10123,10124],{"class":2993,"line":3593},[2991,10125,10126],{"class":2997},"        // Встановити всі ID як параметри\n",[2991,10128,10129,10131,10133,10135,10138,10140,10143,10146,10148,10150,10152],{"class":2993,"line":3599},[2991,10130,8493],{"class":3202},[2991,10132,7059],{"class":3004},[2991,10134,4354],{"class":3027},[2991,10136,10137],{"class":3042}," i",[2991,10139,3136],{"class":3004},[2991,10141,10142],{"class":7117},"0",[2991,10144,10145],{"class":3004},"; i \u003C ",[2991,10147,9690],{"class":3042},[2991,10149,3165],{"class":3004},[2991,10151,4471],{"class":3139},[2991,10153,10154],{"class":3004},"(); i++) {\n",[2991,10156,10157,10159,10161,10163,10166,10168,10170,10172,10174,10176],{"class":2993,"line":3605},[2991,10158,7107],{"class":3042},[2991,10160,3165],{"class":3004},[2991,10162,7112],{"class":3139},[2991,10164,10165],{"class":3004},"(i + ",[2991,10167,7118],{"class":7117},[2991,10169,3409],{"class":3004},[2991,10171,9690],{"class":3042},[2991,10173,3165],{"class":3004},[2991,10175,4267],{"class":3139},[2991,10177,10178],{"class":3004},"(i));\n",[2991,10180,10181],{"class":2993,"line":3611},[2991,10182,4289],{"class":3004},[2991,10184,10185],{"class":2993,"line":3617},[2991,10186,3293],{"emptyLinePlaceholder":3292},[2991,10188,10189,10191,10193,10195,10197,10199,10201,10203,10205],{"class":2993,"line":3622},[2991,10190,7056],{"class":3202},[2991,10192,7059],{"class":3004},[2991,10194,6328],{"class":3027},[2991,10196,6331],{"class":3042},[2991,10198,3136],{"class":3004},[2991,10200,7137],{"class":3042},[2991,10202,3165],{"class":3004},[2991,10204,7142],{"class":3139},[2991,10206,7145],{"class":3004},[2991,10208,10209,10212,10214,10216,10218,10220],{"class":2993,"line":3627},[2991,10210,10211],{"class":3202},"            while",[2991,10213,7059],{"class":3004},[2991,10215,6417],{"class":3042},[2991,10217,3165],{"class":3004},[2991,10219,7182],{"class":3139},[2991,10221,7145],{"class":3004},[2991,10223,10224,10227,10229,10231,10233,10235,10237,10239,10241,10243,10245,10247,10249],{"class":2993,"line":3632},[2991,10225,10226],{"class":3027},"                UUID",[2991,10228,6504],{"class":3042},[2991,10230,3136],{"class":3004},[2991,10232,6417],{"class":3042},[2991,10234,3165],{"class":3004},[2991,10236,6422],{"class":3139},[2991,10238,3171],{"class":3004},[2991,10240,7397],{"class":6377},[2991,10242,3409],{"class":3004},[2991,10244,5304],{"class":3042},[2991,10246,3165],{"class":3004},[2991,10248,6436],{"class":3042},[2991,10250,7680],{"class":3004},[2991,10252,10253,10256,10258,10260,10262],{"class":2993,"line":3637},[2991,10254,10255],{"class":3027},"                Audiobook",[2991,10257,7495],{"class":3042},[2991,10259,3136],{"class":3004},[2991,10261,7199],{"class":3139},[2991,10263,3143],{"class":3004},[2991,10265,10266,10269,10271,10274,10277,10279,10281,10283,10286,10288],{"class":2993,"line":3642},[2991,10267,10268],{"class":3042},"                result",[2991,10270,3165],{"class":3004},[2991,10272,10273],{"class":3139},"computeIfAbsent",[2991,10275,10276],{"class":3004},"(authorId, k ",[2991,10278,6547],{"class":3020},[2991,10280,7246],{"class":3202},[2991,10282,4257],{"class":3027},[2991,10284,10285],{"class":3004},"\u003C>()).",[2991,10287,7194],{"class":3139},[2991,10289,10290],{"class":3004},"(book);\n",[2991,10292,10293],{"class":2993,"line":3648},[2991,10294,7220],{"class":3004},[2991,10296,10297],{"class":2993,"line":3654},[2991,10298,4289],{"class":3004},[2991,10300,10301,10304,10306,10308,10310,10312],{"class":2993,"line":3660},[2991,10302,10303],{"class":3004},"    } ",[2991,10305,7228],{"class":3202},[2991,10307,7059],{"class":3004},[2991,10309,7233],{"class":3027},[2991,10311,7236],{"class":3042},[2991,10313,4165],{"class":3004},[2991,10315,10316,10319,10321,10323,10325,10328],{"class":2993,"line":3666},[2991,10317,10318],{"class":3202},"        throw",[2991,10320,7246],{"class":3202},[2991,10322,7249],{"class":3139},[2991,10324,3171],{"class":3004},[2991,10326,10327],{"class":6377},"\"findByAuthorIds failed\"",[2991,10329,10330],{"class":3004},", e);\n",[2991,10332,10333],{"class":2993,"line":3672},[2991,10334,3547],{"class":3004},[2991,10336,10337,10339],{"class":2993,"line":3677},[2991,10338,9861],{"class":3202},[2991,10340,7215],{"class":3004},[2991,10342,10343],{"class":2993,"line":3682},[2991,10344,3102],{"class":3004},[3110,10346,10348],{"id":10347},"порівняння-стратегій-завантаження","Порівняння стратегій завантаження",[10350,10351,10352,10368],"table",{},[10353,10354,10355],"thead",{},[10356,10357,10358,10362,10365],"tr",{},[10359,10360,10361],"th",{},"Стратегія",[10359,10363,10364],{},"Кількість SELECT",[10359,10366,10367],{},"Коли підходить",[10369,10370,10371,10385,10398,10411],"tbody",{},[10356,10372,10373,10379,10382],{},[10374,10375,10376],"td",{},[2977,10377,10378],{},"Eager (завжди)",[10374,10380,10381],{},"1 (JOIN)",[10374,10383,10384],{},"Колекція майже завжди потрібна",[10356,10386,10387,10392,10395],{},[10374,10388,10389],{},[2977,10390,10391],{},"Lazy Loading",[10374,10393,10394],{},"1 + N (по запиту)",[10374,10396,10397],{},"Колекція часто не потрібна, поодинокі завантаження",[10356,10399,10400,10405,10408],{},[10374,10401,10402],{},[2977,10403,10404],{},"Batch Loading",[10374,10406,10407],{},"2",[10374,10409,10410],{},"Список авторів + всі їх колекції разом",[10356,10412,10413,10418,10420],{},[10374,10414,10415],{},[2977,10416,10417],{},"JOIN з агрегацією",[10374,10419,7118],{},[10374,10421,10422],{},"Потрібна лише статистика (count, sum)",[10424,10425,10426,10427,10430,10431,10434,10435,10438,10439,10442,10443,10446],"note",{},"У Hibernate це вирішується через ",[2968,10428,10429],{},"@OneToMany(fetch = FetchType.LAZY)"," (Lazy, за замовчуванням) та ",[2968,10432,10433],{},"JOIN FETCH"," у JPQL (Eager з одним запитом для конкретного запиту). Batch Loading керується через ",[2968,10436,10437],{},"@BatchSize"," або ",[2968,10440,10441],{},"hibernate.default_batch_fetch_size",". Наша ручна реалізація демонструє ",[2977,10444,10445],{},"саме ті механізми",", що ORM автоматизує.",[3353,10448],{},[2959,10450,10452],{"id":10451},"проблеми-lazy-loading","Проблеми Lazy Loading",[3110,10454,10456],{"id":10455},"проблема-1-lazyinitializationexception-аналог-hibernate","Проблема 1: LazyInitializationException (аналог Hibernate)",[2964,10458,10459,10460,10463,10464,10467,10468,10470],{},"У Hibernate є класична помилка ",[2968,10461,10462],{},"LazyInitializationException",": спроба звернутися до lazy-колекції після закриття ",[2968,10465,10466],{},"Session"," (коли ",[2968,10469,7062],{}," вже повернено у пул).",[2964,10472,10473,10474,10476,10477,10480,10481,10483,10484,10487],{},"У нашій реалізації аналогічна проблема: якщо ",[2968,10475,7864],{}," закрито (",[2968,10478,10479],{},"cm.close()","), а потім викликається ",[2968,10482,3252],{}," — ",[2968,10485,10486],{},"LazyList"," спробує взяти з'єднання з уже закритого пулу і отримає виключення:",[2982,10489,10491],{"className":3011,"code":10490,"language":3013,"meta":2987,"style":2987},"cm.close(); // З'єднання повернуті в пул, пул закрито\n\n// ← LazyList ще не завантажений\nAuthor author = loadedAuthor; // об'єкт залишився у пам'яті\nList\u003CAudiobook> books = author.getAudiobooks(); // ← DatabaseException!\n// LazyList.ensureLoaded() → findByAuthorId() → cm.getConnection() → помилка\n",[2968,10492,10493,10507,10511,10516,10528,10553],{"__ignoreMap":2987},[2991,10494,10495,10498,10500,10502,10504],{"class":2993,"line":2994},[2991,10496,10497],{"class":3042},"cm",[2991,10499,3165],{"class":3004},[2991,10501,8964],{"class":3139},[2991,10503,5549],{"class":3004},[2991,10505,10506],{"class":2997},"// З'єднання повернуті в пул, пул закрито\n",[2991,10508,10509],{"class":2993,"line":3001},[2991,10510,3293],{"emptyLinePlaceholder":3292},[2991,10512,10513],{"class":2993,"line":3049},[2991,10514,10515],{"class":2997},"// ← LazyList ще не завантажений\n",[2991,10517,10518,10520,10522,10525],{"class":2993,"line":3062},[2991,10519,2970],{"class":3027},[2991,10521,3133],{"class":3042},[2991,10523,10524],{"class":3004}," = loadedAuthor; ",[2991,10526,10527],{"class":2997},"// об'єкт залишився у пам'яті\n",[2991,10529,10530,10532,10534,10536,10538,10540,10542,10544,10546,10548,10550],{"class":2993,"line":3074},[2991,10531,3148],{"class":3027},[2991,10533,3082],{"class":3004},[2991,10535,2974],{"class":3027},[2991,10537,3087],{"class":3004},[2991,10539,3157],{"class":3042},[2991,10541,3136],{"class":3004},[2991,10543,3174],{"class":3042},[2991,10545,3165],{"class":3004},[2991,10547,3284],{"class":3139},[2991,10549,5549],{"class":3004},[2991,10551,10552],{"class":2997},"// ← DatabaseException!\n",[2991,10554,10555],{"class":2993,"line":3099},[2991,10556,10557],{"class":2997},"// LazyList.ensureLoaded() → findByAuthorId() → cm.getConnection() → помилка\n",[2964,10559,10560,10563,10564,10566],{},[2977,10561,10562],{},"Рішення:"," завжди завантажувати lazy-колекції в межах активної сесії (поки ",[2968,10565,7864],{}," відкритий). Це вимагає дисципліни від клієнтського коду.",[3110,10568,10570],{"id":10569},"проблема-2-циклічні-залежності-при-серіалізації","Проблема 2: Циклічні залежності при серіалізації",[2964,10572,10573,10574,10576,10577,10579,10580,10582,10583,10438,10585,10587,10588,10591],{},"Якщо ",[2968,10575,2970],{}," серіалізується у JSON (наприклад, для REST API) і ",[2968,10578,3339],{}," повертає ",[2968,10581,10486],{},", що ще не завантажений — JSON-серіалізатор (Jackson) викличе ",[2968,10584,3412],{},[2968,10586,3415],{},", що ініціює SQL. Це ",[2977,10589,10590],{},"непомітне виконання SQL"," в контексті HTTP-відповіді.",[2982,10593,10595],{"className":3011,"code":10594,"language":3013,"meta":2987,"style":2987},"// REST-контролер (псевдокод):\n@GetMapping(\"/authors/{id}\")\npublic Author getAuthor(@PathVariable UUID id) {\n    Author author = authorRepo.findById(id).orElseThrow();\n    return author; // Jackson серіалізує всі поля, включаючи getAudiobooks()!\n    // → LazyList.ensureLoaded() → SELECT → Series of SQL\n}\n",[2968,10596,10597,10602,10617,10637,10659,10669,10674],{"__ignoreMap":2987},[2991,10598,10599],{"class":2993,"line":2994},[2991,10600,10601],{"class":2997},"// REST-контролер (псевдокод):\n",[2991,10603,10604,10607,10610,10612,10615],{"class":2993,"line":3001},[2991,10605,10606],{"class":3004},"@",[2991,10608,10609],{"class":3027},"GetMapping",[2991,10611,3171],{"class":3004},[2991,10613,10614],{"class":6377},"\"/authors/{id}\"",[2991,10616,6397],{"class":3004},[2991,10618,10619,10621,10623,10626,10629,10632,10634],{"class":2993,"line":3049},[2991,10620,3021],{"class":3020},[2991,10622,3028],{"class":3027},[2991,10624,10625],{"class":3139}," getAuthor",[2991,10627,10628],{"class":3004},"(@",[2991,10630,10631],{"class":3027},"PathVariable",[2991,10633,3039],{"class":3027},[2991,10635,10636],{"class":3004}," id) {\n",[2991,10638,10639,10642,10644,10646,10648,10650,10652,10655,10657],{"class":2993,"line":3062},[2991,10640,10641],{"class":3027},"    Author",[2991,10643,3133],{"class":3042},[2991,10645,3136],{"class":3004},[2991,10647,8201],{"class":3042},[2991,10649,3165],{"class":3004},[2991,10651,8206],{"class":3139},[2991,10653,10654],{"class":3004},"(id).",[2991,10656,8212],{"class":3139},[2991,10658,3287],{"class":3004},[2991,10660,10661,10663,10666],{"class":2993,"line":3074},[2991,10662,9861],{"class":3202},[2991,10664,10665],{"class":3004}," author; ",[2991,10667,10668],{"class":2997},"// Jackson серіалізує всі поля, включаючи getAudiobooks()!\n",[2991,10670,10671],{"class":2993,"line":3099},[2991,10672,10673],{"class":2997},"    // → LazyList.ensureLoaded() → SELECT → Series of SQL\n",[2991,10675,10676],{"class":2993,"line":3514},[2991,10677,3102],{"class":3004},[2964,10679,10680,10682,10683,10685],{},[2977,10681,10562],{}," використовувати DTO (Data Transfer Object) замість прямої серіалізації доменних об'єктів. DTO не містить ",[2968,10684,10486],{}," — тільки те, що явно додав розробник.",[3110,10687,10689],{"id":10688},"проблема-3-thread-safety","Проблема 3: thread-safety",[2964,10691,10692,10694,10695,3253],{},[2968,10693,10486],{}," не є потокобезпечним. Якщо два потоки одночасно викликають ",[2968,10696,3861],{},[2982,10698,10701],{"className":10699,"code":10700,"language":3229},[3227],"Потік A: isLoaded = false → заходить у if\nПотік B: isLoaded = false → заходить у if\nПотік A: loaded = loader.get() ← виконує SQL\nПотік B: loaded = loader.get() ← теж виконує SQL (race condition!)\nПотік A: isLoaded = true\nПотік B: isLoaded = true\n",[2968,10702,10700],{"__ignoreMap":2987},[2964,10704,9544,10705,10708],{},[2968,10706,10707],{},"loader.get()"," викликається двічі — два SQL-запити замість одного.",[2964,10710,10711,3401,10713,10716],{},[2977,10712,10562],{},[2968,10714,10715],{},"synchronized ensureLoaded()"," або double-checked locking:",[2982,10718,10720],{"className":3011,"code":10719,"language":3013,"meta":2987,"style":2987},"private void ensureLoaded() {\n    if (!isLoaded) {\n        synchronized (this) {\n            if (!isLoaded) { // double-check після отримання монітора\n                loaded = new ArrayList\u003C>(loader.get());\n                isLoaded = true;\n            }\n        }\n    }\n}\n",[2968,10721,10722,10733,10739,10750,10761,10780,10789,10793,10797,10801],{"__ignoreMap":2987},[2991,10723,10724,10727,10729,10731],{"class":2993,"line":2994},[2991,10725,10726],{"class":3020},"private",[2991,10728,4230],{"class":3027},[2991,10730,4233],{"class":3139},[2991,10732,4236],{"class":3004},[2991,10734,10735,10737],{"class":2993,"line":3001},[2991,10736,9652],{"class":3202},[2991,10738,4245],{"class":3004},[2991,10740,10741,10744,10746,10748],{"class":2993,"line":3049},[2991,10742,10743],{"class":3020},"        synchronized",[2991,10745,7059],{"class":3004},[2991,10747,5776],{"class":3020},[2991,10749,4165],{"class":3004},[2991,10751,10752,10755,10758],{"class":2993,"line":3062},[2991,10753,10754],{"class":3202},"            if",[2991,10756,10757],{"class":3004}," (!isLoaded) { ",[2991,10759,10760],{"class":2997},"// double-check після отримання монітора\n",[2991,10762,10763,10766,10768,10770,10772,10774,10776,10778],{"class":2993,"line":3074},[2991,10764,10765],{"class":3004},"                loaded = ",[2991,10767,4254],{"class":3202},[2991,10769,4257],{"class":3027},[2991,10771,4260],{"class":3004},[2991,10773,3727],{"class":3042},[2991,10775,3165],{"class":3004},[2991,10777,4267],{"class":3139},[2991,10779,7926],{"class":3004},[2991,10781,10782,10785,10787],{"class":2993,"line":3099},[2991,10783,10784],{"class":3004},"                isLoaded = ",[2991,10786,4281],{"class":3020},[2991,10788,3046],{"class":3004},[2991,10790,10791],{"class":2993,"line":3514},[2991,10792,7220],{"class":3004},[2991,10794,10795],{"class":2993,"line":3520},[2991,10796,4289],{"class":3004},[2991,10798,10799],{"class":2993,"line":3526},[2991,10800,3547],{"class":3004},[2991,10802,10803],{"class":2993,"line":3532},[2991,10804,3102],{"class":3004},[2964,10806,10807],{},"Для per-request контексту (один HTTP-запит = один потік) ця проблема неактуальна.",[3353,10809],{},[2959,10811,10813],{"id":10812},"підсумкова-архітектура","Підсумкова архітектура",[3475,10815,10816],{},[2982,10817,10819],{"className":3479,"code":10818,"language":3475,"meta":2987,"style":2987},"graph LR\n    subgraph Domain [\"Доменний шар\"]\n        AU[\"Author\u003Cbr/>-audiobooks: LazyList\"]\n        AB[\"Audiobook\"]\n    end\n\n    subgraph Proxy [\"Proxy шар\"]\n        LL[\"LazyList~T~\u003Cbr/>- loader: Supplier\u003Cbr/>- isLoaded: bool\u003Cbr/>- loaded: List\u003Cbr/>ensureLoaded()\"]\n    end\n\n    subgraph Repo [\"Репозиторій шар\"]\n        JAR[\"JdbcAuthorRepository\u003Cbr/>mapRow() → initLazyAudiobooks()\"]\n        JBR[\"JdbcAudiobookRepository\u003Cbr/>findByAuthorId()\"]\n    end\n\n    DB[(\"H2 / PostgreSQL\")]\n\n    AU -- \"audiobooks поле\" --> LL\n    LL -- \"loader лямбда\" --> JBR\n    JAR -- \"mapRow\" --> AU\n    JBR --> DB\n    JAR --> DB\n\n    style Proxy fill:#1e3a5f,stroke:#3b82f6,color:#ffffff\n",[2968,10820,10821,10826,10831,10836,10841,10845,10849,10854,10859,10863,10867,10872,10877,10882,10886,10890,10895,10899,10904,10909,10914,10919,10924,10928],{"__ignoreMap":2987},[2991,10822,10823],{"class":2993,"line":2994},[2991,10824,10825],{},"graph LR\n",[2991,10827,10828],{"class":2993,"line":3001},[2991,10829,10830],{},"    subgraph Domain [\"Доменний шар\"]\n",[2991,10832,10833],{"class":2993,"line":3049},[2991,10834,10835],{},"        AU[\"Author\u003Cbr/>-audiobooks: LazyList\"]\n",[2991,10837,10838],{"class":2993,"line":3062},[2991,10839,10840],{},"        AB[\"Audiobook\"]\n",[2991,10842,10843],{"class":2993,"line":3074},[2991,10844,9412],{},[2991,10846,10847],{"class":2993,"line":3099},[2991,10848,3293],{"emptyLinePlaceholder":3292},[2991,10850,10851],{"class":2993,"line":3514},[2991,10852,10853],{},"    subgraph Proxy [\"Proxy шар\"]\n",[2991,10855,10856],{"class":2993,"line":3520},[2991,10857,10858],{},"        LL[\"LazyList~T~\u003Cbr/>- loader: Supplier\u003Cbr/>- isLoaded: bool\u003Cbr/>- loaded: List\u003Cbr/>ensureLoaded()\"]\n",[2991,10860,10861],{"class":2993,"line":3526},[2991,10862,9412],{},[2991,10864,10865],{"class":2993,"line":3532},[2991,10866,3293],{"emptyLinePlaceholder":3292},[2991,10868,10869],{"class":2993,"line":3538},[2991,10870,10871],{},"    subgraph Repo [\"Репозиторій шар\"]\n",[2991,10873,10874],{"class":2993,"line":3544},[2991,10875,10876],{},"        JAR[\"JdbcAuthorRepository\u003Cbr/>mapRow() → initLazyAudiobooks()\"]\n",[2991,10878,10879],{"class":2993,"line":3550},[2991,10880,10881],{},"        JBR[\"JdbcAudiobookRepository\u003Cbr/>findByAuthorId()\"]\n",[2991,10883,10884],{"class":2993,"line":3555},[2991,10885,9412],{},[2991,10887,10888],{"class":2993,"line":3561},[2991,10889,3293],{"emptyLinePlaceholder":3292},[2991,10891,10892],{"class":2993,"line":3567},[2991,10893,10894],{},"    DB[(\"H2 / PostgreSQL\")]\n",[2991,10896,10897],{"class":2993,"line":3572},[2991,10898,3293],{"emptyLinePlaceholder":3292},[2991,10900,10901],{"class":2993,"line":3577},[2991,10902,10903],{},"    AU -- \"audiobooks поле\" --> LL\n",[2991,10905,10906],{"class":2993,"line":3582},[2991,10907,10908],{},"    LL -- \"loader лямбда\" --> JBR\n",[2991,10910,10911],{"class":2993,"line":3587},[2991,10912,10913],{},"    JAR -- \"mapRow\" --> AU\n",[2991,10915,10916],{"class":2993,"line":3593},[2991,10917,10918],{},"    JBR --> DB\n",[2991,10920,10921],{"class":2993,"line":3599},[2991,10922,10923],{},"    JAR --> DB\n",[2991,10925,10926],{"class":2993,"line":3605},[2991,10927,3293],{"emptyLinePlaceholder":3292},[2991,10929,10930],{"class":2993,"line":3611},[2991,10931,10932],{},"    style Proxy fill:#1e3a5f,stroke:#3b82f6,color:#ffffff\n",[3353,10934],{},[2959,10936,10938],{"id":10937},"підсумок","Підсумок",[3386,10940,10941,10969],{},[3389,10942,10945],{"icon":10943,"title":10944},"i-heroicons-check-circle","Що вирішує Proxy/Lazy Loading",[10946,10947,10948,10952,10960,10963],"ul",{},[10949,10950,10951],"li",{},"Уникає завантаження пов'язаних даних, коли вони не потрібні",[10949,10953,10954,10956,10957,10959],{},[2968,10955,3454],{}," прозорий для клієнтів — інтерфейс ",[2968,10958,3458],{}," однаковий",[10949,10961,10962],{},"Зменшує кількість SQL-запитів при поодиноких завантаженнях",[10949,10964,10965,10968],{},[2968,10966,10967],{},"invalidate()"," дозволяє оновити кеш після змін у БД",[3389,10970,10973],{"icon":10971,"title":10972},"i-heroicons-exclamation-triangle","Обмеження та застереження",[10946,10974,10975,10978,10981,10984],{},[10949,10976,10977],{},"Переміщує N+1 Problem, а не вирішує (для списків — Batch Loading)",[10949,10979,10980],{},"Не є thread-safe без синхронізації",[10949,10982,10983],{},"SQL виконується у неочікуваних місцях (серіалізація, toString)",[10949,10985,10986,10987,10989],{},"Вимагає активного ",[2968,10988,7864],{}," при ініціалізації",[2964,10991,10992,10993,10995,10996,3409,10999,3409,11002,11005,11006,11009,11010,11012,11013,11015,11016,3165],{},"Наша реалізація ",[2968,10994,3454],{}," є спрощеною версією того, що Hibernate реалізує через ",[2968,10997,10998],{},"PersistentBag",[2968,11000,11001],{},"PersistentList",[2968,11003,11004],{},"PersistentSet",". Hibernate-колекції також є Proxy-об'єктами: вони відслідковують зміни (add/remove), підтримують dirty-флаг для ",[2968,11007,11008],{},"Unit of Work"," і реалізують Batch Loading через ",[2968,11011,10437],{},". Різниця лише в тому, що Hibernate робить це прозоро через байт-кодову інструментацію, тоді як наш ",[2968,11014,10486],{}," потребує явної ініціалізації через ",[2968,11017,11018],{},"initLazyAudiobooks()",[2964,11020,11021,11022,11025,11026,3409,11028,11031,11032,11034],{},"У наступній та завершальній статті ми розглянемо ",[2977,11023,11024],{},"Generic Repository через рефлексію",": як позбутися дублювання між ",[2968,11027,5970],{},[2968,11029,11030],{},"JdbcGenreRepository"," та ",[2968,11033,6635],{},", використавши анотації та Java Reflection API.",[3353,11036],{},[2959,11038,11040],{"id":11039},"завдання","Завдання",[11042,11043,11045,11055,11089],"collapsible",{"title":11044},"Рівень 1: LazyList для Genre",[2964,11046,11047,11048,11051,11052,11054],{},"Доданий зв'язок ",[2968,11049,11050],{},"Genre → List\u003CAudiobook>"," (один жанр — багато аудіокниг). Реалізуйте аналогічне до ",[2968,11053,2970],{}," lazy-завантаження:",[11056,11057,11058,11071,11081],"ol",{},[10949,11059,11060,11061,11064,11065,3249,11068,3165],{},"Додайте поле ",[2968,11062,11063],{},"private List\u003CAudiobook> audiobooks"," та метод ",[2968,11066,11067],{},"initLazyAudiobooks(Supplier\u003CList\u003CAudiobook>>)",[2968,11069,11070],{},"Genre",[10949,11072,11073,11074,11077,11078,3165],{},"У ",[2968,11075,11076],{},"JdbcGenreRepository.mapRow()"," викликайте ",[2968,11079,11080],{},"genre.initLazyAudiobooks(() -> audiobookRepo.findByGenreId(genreId))",[10949,11082,11083,11084,3249,11087,3165],{},"Додайте метод ",[2968,11085,11086],{},"findByGenreId(UUID genreId)",[2968,11088,6635],{},[2964,11090,11091,11092,10579,11095,11097,11098,11100,11101,3165],{},"Напишіть демонстрацію: завантажте 3 жанри, перевірте, що ",[2968,11093,11094],{},"isAudiobooksLoaded()",[2968,11096,4088],{}," до і ",[2968,11099,4281],{}," після першого виклику ",[2968,11102,3339],{},[11042,11104,11106,11112,11216,11228],{"title":11105},"Рівень 2: Thread-Safe LazyList",[2964,11107,11108,11109,11111],{},"Модифікуйте ",[2968,11110,3454],{}," для безпечної роботи у багатопотоковому середовищі:",[2982,11113,11115],{"className":3011,"code":11114,"language":3013,"meta":2987,"style":2987},"// Варіант 1: Double-Checked Locking\nprivate volatile boolean isLoaded = false; // volatile необхідний!\nprivate void ensureLoaded() {\n    if (!isLoaded) {\n        synchronized (this) {\n            if (!isLoaded) {\n                loaded = new ArrayList\u003C>(loader.get());\n                isLoaded = true;\n            }\n        }\n    }\n}\n",[2968,11116,11117,11122,11142,11152,11158,11168,11174,11192,11200,11204,11208,11212],{"__ignoreMap":2987},[2991,11118,11119],{"class":2993,"line":2994},[2991,11120,11121],{"class":2997},"// Варіант 1: Double-Checked Locking\n",[2991,11123,11124,11126,11129,11131,11133,11135,11137,11139],{"class":2993,"line":3001},[2991,11125,10726],{"class":3020},[2991,11127,11128],{"class":3020}," volatile",[2991,11130,4080],{"class":3027},[2991,11132,4083],{"class":3042},[2991,11134,3136],{"class":3004},[2991,11136,4088],{"class":3020},[2991,11138,3093],{"class":3004},[2991,11140,11141],{"class":2997},"// volatile необхідний!\n",[2991,11143,11144,11146,11148,11150],{"class":2993,"line":3049},[2991,11145,10726],{"class":3020},[2991,11147,4230],{"class":3027},[2991,11149,4233],{"class":3139},[2991,11151,4236],{"class":3004},[2991,11153,11154,11156],{"class":2993,"line":3062},[2991,11155,9652],{"class":3202},[2991,11157,4245],{"class":3004},[2991,11159,11160,11162,11164,11166],{"class":2993,"line":3074},[2991,11161,10743],{"class":3020},[2991,11163,7059],{"class":3004},[2991,11165,5776],{"class":3020},[2991,11167,4165],{"class":3004},[2991,11169,11170,11172],{"class":2993,"line":3099},[2991,11171,10754],{"class":3202},[2991,11173,4245],{"class":3004},[2991,11175,11176,11178,11180,11182,11184,11186,11188,11190],{"class":2993,"line":3514},[2991,11177,10765],{"class":3004},[2991,11179,4254],{"class":3202},[2991,11181,4257],{"class":3027},[2991,11183,4260],{"class":3004},[2991,11185,3727],{"class":3042},[2991,11187,3165],{"class":3004},[2991,11189,4267],{"class":3139},[2991,11191,7926],{"class":3004},[2991,11193,11194,11196,11198],{"class":2993,"line":3520},[2991,11195,10784],{"class":3004},[2991,11197,4281],{"class":3020},[2991,11199,3046],{"class":3004},[2991,11201,11202],{"class":2993,"line":3526},[2991,11203,7220],{"class":3004},[2991,11205,11206],{"class":2993,"line":3532},[2991,11207,4289],{"class":3004},[2991,11209,11210],{"class":2993,"line":3538},[2991,11211,3547],{"class":3004},[2991,11213,11214],{"class":2993,"line":3544},[2991,11215,3102],{"class":3004},[2964,11217,11218,11219,11221,11222,9559,11224,11227],{},"Напишіть тест на конкурентність: 10 потоків одночасно викликають ",[2968,11220,3412],{}," на одному LazyList. Підрахуйте кількість викликів ",[2968,11223,10707],{},[2968,11225,11226],{},"AtomicInteger",". З double-checked locking — має бути рівно 1. Без синхронізації — може бути більше.",[2964,11229,11230,11231,2971,11234,11237],{},"Порівняйте також варіант із ",[2968,11232,11233],{},"AtomicBoolean",[2968,11235,11236],{},"compareAndSet"," — чи є він більш ефективним?",[11042,11239,11241,11250,11448,11459,11462,11481],{"title":11240},"Рівень 3: Batch Loading через findAllWithAudiobooks",[2964,11242,11243,11244,11247,11248,3253],{},"Реалізуйте повний метод ",[2968,11245,11246],{},"findAllWithAudiobooks()"," в ",[2968,11249,5970],{},[2982,11251,11253],{"className":3011,"code":11252,"language":3013,"meta":2987,"style":2987},"public List\u003CAuthor> findAllWithAudiobooks() {\n    // Крок 1: Завантажити всіх авторів\n    List\u003CAuthor> authors = findAll();\n\n    // Крок 2: Зібрати всі ID у список\n    List\u003CUUID> ids = authors.stream().map(Author::getId).toList();\n\n    // Крок 3: Один batch SELECT із IN (...)\n    Map\u003CUUID, List\u003CAudiobook>> books = audiobookRepo.findByAuthorIds(ids);\n\n    // Крок 4: Розподілити книги по авторах і встановити (не LazyList)\n    authors.forEach(a -> a.setAudiobooks(books.getOrDefault(a.getId(), List.of())));\n\n    return authors;\n}\n",[2968,11254,11255,11267,11272,11290,11294,11299,11335,11339,11344,11375,11379,11384,11434,11438,11444],{"__ignoreMap":2987},[2991,11256,11257,11259,11261,11263,11265],{"class":2993,"line":2994},[2991,11258,3021],{"class":3020},[2991,11260,3079],{"class":3027},[2991,11262,9618],{"class":3004},[2991,11264,9621],{"class":3139},[2991,11266,4236],{"class":3004},[2991,11268,11269],{"class":2993,"line":3001},[2991,11270,11271],{"class":2997},"    // Крок 1: Завантажити всіх авторів\n",[2991,11273,11274,11276,11278,11280,11282,11284,11286,11288],{"class":2993,"line":3049},[2991,11275,9633],{"class":3027},[2991,11277,3082],{"class":3004},[2991,11279,2970],{"class":3027},[2991,11281,3087],{"class":3004},[2991,11283,9202],{"class":3042},[2991,11285,3136],{"class":3004},[2991,11287,9211],{"class":3139},[2991,11289,3287],{"class":3004},[2991,11291,11292],{"class":2993,"line":3062},[2991,11293,3293],{"emptyLinePlaceholder":3292},[2991,11295,11296],{"class":2993,"line":3074},[2991,11297,11298],{"class":2997},"    // Крок 2: Зібрати всі ID у список\n",[2991,11300,11301,11303,11305,11307,11309,11312,11314,11316,11318,11320,11322,11324,11326,11328,11331,11333],{"class":2993,"line":3099},[2991,11302,9633],{"class":3027},[2991,11304,3082],{"class":3004},[2991,11306,5304],{"class":3027},[2991,11308,3087],{"class":3004},[2991,11310,11311],{"class":3042},"ids",[2991,11313,3136],{"class":3004},[2991,11315,9202],{"class":3042},[2991,11317,3165],{"class":3004},[2991,11319,9699],{"class":3139},[2991,11321,8858],{"class":3004},[2991,11323,9709],{"class":3139},[2991,11325,9712],{"class":3004},[2991,11327,9715],{"class":3202},[2991,11329,11330],{"class":3004},"getId).",[2991,11332,9725],{"class":3139},[2991,11334,3287],{"class":3004},[2991,11336,11337],{"class":2993,"line":3514},[2991,11338,3293],{"emptyLinePlaceholder":3292},[2991,11340,11341],{"class":2993,"line":3520},[2991,11342,11343],{"class":2997},"    // Крок 3: Один batch SELECT із IN (...)\n",[2991,11345,11346,11348,11350,11352,11354,11356,11358,11360,11362,11364,11366,11368,11370,11372],{"class":2993,"line":3526},[2991,11347,9741],{"class":3027},[2991,11349,3082],{"class":3004},[2991,11351,5304],{"class":3027},[2991,11353,3409],{"class":3004},[2991,11355,3148],{"class":3027},[2991,11357,3082],{"class":3004},[2991,11359,2974],{"class":3027},[2991,11361,3986],{"class":3004},[2991,11363,3157],{"class":3042},[2991,11365,3136],{"class":3004},[2991,11367,3162],{"class":3042},[2991,11369,3165],{"class":3004},[2991,11371,9767],{"class":3139},[2991,11373,11374],{"class":3004},"(ids);\n",[2991,11376,11377],{"class":2993,"line":3532},[2991,11378,3293],{"emptyLinePlaceholder":3292},[2991,11380,11381],{"class":2993,"line":3538},[2991,11382,11383],{"class":2997},"    // Крок 4: Розподілити книги по авторах і встановити (не LazyList)\n",[2991,11385,11386,11389,11391,11394,11397,11399,11402,11404,11406,11408,11410,11412,11414,11416,11419,11421,11423,11425,11427,11429,11431],{"class":2993,"line":3544},[2991,11387,11388],{"class":3042},"    authors",[2991,11390,3165],{"class":3004},[2991,11392,11393],{"class":3139},"forEach",[2991,11395,11396],{"class":3004},"(a ",[2991,11398,6547],{"class":3020},[2991,11400,11401],{"class":3042}," a",[2991,11403,3165],{"class":3004},[2991,11405,3194],{"class":3139},[2991,11407,3171],{"class":3004},[2991,11409,3157],{"class":3042},[2991,11411,3165],{"class":3004},[2991,11413,9815],{"class":3139},[2991,11415,3171],{"class":3004},[2991,11417,11418],{"class":3042},"a",[2991,11420,3165],{"class":3004},[2991,11422,3179],{"class":3139},[2991,11424,9826],{"class":3004},[2991,11426,3148],{"class":3042},[2991,11428,3165],{"class":3004},[2991,11430,5546],{"class":3139},[2991,11432,11433],{"class":3004},"())));\n",[2991,11435,11436],{"class":2993,"line":3550},[2991,11437,3293],{"emptyLinePlaceholder":3292},[2991,11439,11440,11442],{"class":2993,"line":3555},[2991,11441,9861],{"class":3202},[2991,11443,9668],{"class":3004},[2991,11445,11446],{"class":2993,"line":3561},[2991,11447,3102],{"class":3004},[2964,11449,11450,11451,6632,11454,11456,11457,3165],{},"Реалізуйте також ",[2968,11452,11453],{},"findByAuthorIds(List\u003CUUID>)",[2968,11455,6635],{}," з динамічним ",[2968,11458,9562],{},[2964,11460,11461],{},"Порівняйте кількість SQL-запитів у трьох сценаріях для 50 авторів:",[11056,11463,11464,11471,11476],{},[10949,11465,11466,8243,11468,11470],{},[2968,11467,3215],{},[2968,11469,3252],{}," у циклі (Lazy N+1)",[10949,11472,11473,11475],{},[2968,11474,3215],{}," без доступу до книг (0 книг-запитів)",[10949,11477,11478,11480],{},[2968,11479,11246],{}," (Batch Loading, 2 запити)",[2964,11482,11483],{},"Виведіть таблицю з кількістю SELECT для кожного сценарію.",[11485,11486,11487],"style",{},"html pre.shiki code .spJ8K, html code.shiki .spJ8K{--shiki-light:#008000;--shiki-default:#6A9955;--shiki-dark:#6A9955}html pre.shiki code .sHH4Y, html code.shiki .sHH4Y{--shiki-light:#000000;--shiki-default:#D4D4D4;--shiki-dark:#D4D4D4}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .su1O8, html code.shiki .su1O8{--shiki-light:#0000FF;--shiki-default:#569CD6;--shiki-dark:#569CD6}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 .s8Opu, html code.shiki .s8Opu{--shiki-light:#795E26;--shiki-default:#DCDCAA;--shiki-dark:#DCDCAA}html pre.shiki code .sCDza, html code.shiki .sCDza{--shiki-light:#AF00DB;--shiki-default:#CE92A4;--shiki-dark:#CE92A4}html pre.shiki code .sbdoH, html code.shiki .sbdoH{--shiki-light:#A31515;--shiki-default:#CE9178;--shiki-dark:#CE9178}html pre.shiki code .sJj4R, html code.shiki .sJj4R{--shiki-light:#098658;--shiki-default:#B5CEA8;--shiki-dark:#B5CEA8}html pre.shiki code .sjcCO, html code.shiki .sjcCO{--shiki-light:#EE0000;--shiki-default:#D7BA7D;--shiki-dark:#D7BA7D}",{"title":2987,"searchDepth":3001,"depth":3001,"links":11489},[11490,11494,11495,11500,11502,11504,11506,11507,11512,11517,11518,11519],{"id":2961,"depth":3001,"text":2962,"children":11491},[11492,11493],{"id":3112,"depth":3049,"text":3113},{"id":3241,"depth":3049,"text":3242},{"id":3357,"depth":3001,"text":3358},{"id":3713,"depth":3001,"text":11496,"children":11497},"Реалізація LazyList\u003CT>",[11498],{"id":4984,"depth":3049,"text":11499},"Чому AbstractList\u003CT>, а не пряма реалізація List\u003CT>?",{"id":5034,"depth":3001,"text":11501},"Інтеграція з Author",{"id":5966,"depth":3001,"text":11503},"Оновлений JdbcAuthorRepository: Підключення LazyList",{"id":6620,"depth":3001,"text":11505},"AudiobookRepository: Метод findByAuthorId",{"id":7732,"depth":3001,"text":7733},{"id":9172,"depth":3001,"text":9173,"children":11508},[11509,11510,11511],{"id":9424,"depth":3049,"text":9425},{"id":9551,"depth":3049,"text":9552},{"id":10347,"depth":3049,"text":10348},{"id":10451,"depth":3001,"text":10452,"children":11513},[11514,11515,11516],{"id":10455,"depth":3049,"text":10456},{"id":10569,"depth":3049,"text":10570},{"id":10688,"depth":3049,"text":10689},{"id":10812,"depth":3001,"text":10813},{"id":10937,"depth":3001,"text":10938},{"id":11039,"depth":3001,"text":11040},"Реалізація Virtual Proxy для відкладеного завантаження пов'язаних колекцій через JDBC: LazyList\u003CT> як прозорий замінник List\u003CT>, інтеграція з Author.getAudiobooks(), аналіз N+1 Query Problem та стратегії її вирішення.","md",null,{},{"title":2321,"description":11520},"9cIA12KdRRbVOvD6CirI3AIoha1f9O-0ugwIMh1KW2o",[11527,11529],{"title":2317,"path":2318,"stem":2319,"description":11528,"children":-1},"Застосування патерну Strategy (GoF) для виокремлення SQL-діалектів з репозиторіїв: визначення SqlStrategy-інтерфейсу, реалізації для H2 і PostgreSQL, інтеграція з AbstractJdbcRepository та спрощення тестування через підміну стратегії.",{"title":2325,"path":2326,"stem":2327,"description":11530,"children":-1},"Усунення дублювання між JdbcAuthorRepository, JdbcGenreRepository та JdbcAudiobookRepository через власні анотації @Table, @Column, @Id та Java Reflection API. Динамічна генерація INSERT/UPDATE/SELECT/DELETE без жодного SQL у коді сутностей. Порівняння з JPA і аналіз обмежень рефлексійного підходу.",1777909227716]