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

To provide override of default generated save method you need to use aggregation of Spring Data repository implementation inside your own custom repository implementation.

Repository interface:

public interface UserRepository extends CrudRepository{

}

Your repository implementation:

@Repository("customUserRepository")
public class CustomUserRepository implements UserRepository {

    @Autowired
    @Qualifier("userRepository") // inject Spring implementation here
    private UserRepository userRepository;

    public User save(User user) {
        User user = userRepository.save(entity);
        // Your custom code goes here
        return user;
    }

    // Delegate other methods here ...

    @Override
    public User findOne(String s) {
        return userRepository.findOne(s);
    }
}

Then use your custom implementation in your service:

@Autowired
@Qualifier("customUserRepository")
private UserRepository userRepository;