Spring Data: “delete by” is supported?

Question

I am using Spring JPA for database access. I am able to find examples such as findByName and countByName, for which I dont have to write any method implementation. I am hopi

Answer 1

Deprecated answer (Spring Data JPA <=1.6.x):

@Modifying annotation to the rescue. You will need to provide your custom SQL behaviour though.

public interface UserRepository extends JpaRepository {
    @Modifying
    @Query("delete from User u where u.firstName = ?1")
    void deleteUsersByFirstName(String firstName);
}

Update:

In modern versions of Spring Data JPA (>=1.7.x) query derivation for delete, remove and count operations is accessible.

public interface UserRepository extends CrudRepository {

    Long countByFirstName(String firstName);

    Long deleteByFirstName(String firstName);

    List removeByFirstName(String firstName);

}