Repository Interfaces:Spring Data JPA encourages the use of repository interfaces, which define common CRUD (Create, Read, Update, Delete) operations and query methods for your domain objects. These interfaces are typically extended from the JpaRepository or CrudRepository provided by Spring Data JPA.
Annotation-Based Configuration: Spring Data JPA uses annotations to map Java domain objects (entities) to database tables. Annotations like @Entity, @Table, @Id, @GeneratedValue, and others define the entity and its properties.
Query Methods: Spring Spring Data JPA allows developers to define repository methods using a naming convention. By following this convention, you can create methods with names like findByFirstNameAndLastName(String firstName, String lastName) without writing SQL queries explicitly. Spring Data JPA generates the corresponding SQL queries based on the method name.
Query Methods: : Spring Data JPA allows developers to define repository methods using a naming convention. By following this convention, you can create methods with names like findByFirstNameAndLastName(String firstName, String lastName) without writing SQL queries explicitly. Spring Data JPA generates the corresponding SQL queries based on the method name.
JPQL Queries: If query methods are not sufficient for your needs, Spring Data JPA supports the use of JPQL (Java Persistence Query Language) queries. You can define custom queries using JPQL and annotate repository methods with @Query to specify the JPQL query.
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Pagination and Sorting: Spring Data JPA provides built-in support for paginating query results and specifying sorting criteria. This is helpful for handling large datasets efficiently.
Auditing:Spring Data JPA can automatically track entity lifecycle events like creation and modification timestamps using annotations like @CreatedDate and @LastModifiedDate.
Repository Customization: You can extend repository interfaces with custom methods to define specific data access logic tailored to your application’s requirements.
Multiple Data Sources: Spring Data JPA supports working with multiple data sources and configuring entity managers for each data source.
Integration with Other Spring Projects: Spring Data JPA can be integrated with other Spring projects such as Spring Security, Spring Web, and Spring Cloud to build comprehensive and secure applications.
