Spring Data: Override save method

Question

I\'m considering spring data for a project. Is it possible to override the per default generated save method? And if yes, how?

Answer 1

In order to properly override the save method, you have to create a interface with the proper signature of the original method declared on CrudRepository, including the generics

public interface MyCustomRepository {
     S save(S entity);
}

Then, create your implementation ( the suffix Impl is important at the name of the class)

public class MyCustomRepositoryImpl implements MyCustomRepository {

    @Autowired
    private EntityManager entityManager;


    @Override
    public  S save(S entity) {
       /**
         your custom implementation comes here ...
         i think the default one is just        
        return this.entityManager.persist(entity);
       */
    }

}

Finally, extend your repository with the previously created interface

@RepositoryRestResource
@Repository
public interface MyBeanRepository extends PagingAndSortingRepository, MyCustomRepository {}