Custom Spring Data Repository

In this article, Vlad Mihalcea demonstrates how to create custom Spring Data repositories to leverage JPA provider-specific functionalities. While default JpaRepository methods are convenient, certain scenarios require custom repository methods. The process involves:

1. Defining a Custom Interface: Specify the method signatures for the custom repository.

2. Implementing the Interface: Provide the implementation, accessing the EntityManager to utilize Hibernate-specific APIs.

3. Extending the Default Repository: Integrate the custom interface with the standard Spring Data JPA repository.

This approach allows developers to execute complex queries and operations that are not feasible with standard repository methods. For a detailed walkthrough, refer to the original article: The best way to write a custom Spring Data Repository.