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Spring Boot and JPA Integration Explained
- Java Persistence API (JPA) makes working with data at a higher level of abstraction easier.
- JPA is not an implementation but a specification, and Hibernate is often the default implementation used with Spring Boot and JPA.
- Spring Boot's integration with JPA includes several convenient features that simplify database integration details.
- Entity mapping is automated through the use of annotations which are part of the JPA specification.
- JPA allows embedding non-entity objects within entities using the @Embeddable and @Embedded annotations.
- Spring Boot automatically handles entity states of transient, persistent, detached, and removed during interaction with the database.
- Session management in JPA is managed through integration with the application context and transaction handling mechanisms in Spring Boot.
- Transactions in JPA are grouped into a single unit of work in Spring Boot by managing through the @Transactional annotation.
- Spring Data JPA abstracts common database operations through repositories, providing built-in methods for CRUD operations.
- JPA supports two loading strategies for fetching associated entities: lazy loading and eager loading.Spring Boot supports queries using JPQL and native SQL.
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