How to add custom method to Spring Data JPA

Question

I am looking into Spring Data JPA. Consider the below example where I will get all the crud and finder functionality working by default and if I want to customize a finder t

Answer 1

I extends the SimpleJpaRepository:

public class ExtendedRepositoryImpl extends SimpleJpaRepository
    implements ExtendedRepository {

    private final JpaEntityInformation entityInformation;

    private final EntityManager em;

    public ExtendedRepositoryImpl(final JpaEntityInformation entityInformation,
                                                      final EntityManager entityManager) {
       super(entityInformation, entityManager);
       this.entityInformation = entityInformation;
       this.em = entityManager;
    }
}

and adds this class to @EnableJpaRepositoryries repositoryBaseClass.