JWD | A Zen-writing program for encouraging writing over editing | Frontend Framework library

@Entity
@Table(name="tblUser")    
public class User {

@Id
@GeneratedValue
@Column(name="id")
private Long id;

@Column(name="email",nullable=false)
private String email;

@Column(name="password",nullable=false)
private String password;

@Column(name="first_name")
private String firstName;

@Column(name="last_name")
private String lastName;

@OneToMany(mappedBy="user")
private List addresses = new ArrayList<>();
}



@Entity
@Table(name="tblAddress")
public class Address {

@Id
@GeneratedValue
@Column
private Long id;

@Column
private String streat;

@Column
private String number;

@ManyToOne(fetch=FetchType.EAGER)
private User user;
}



public interface UserService {
List findAll(); 
}



@Service
public class JpaUserService implements UserService {
@Autowired
private UserRepository userRepository;

@Override
public List findAll() {
    return userRepository.findAll();
    }
}



@Controller
@RequestMapping(value="/api/users")
public class ApiUserController {

@Autowired
private UserService userService;

@Autowired
private UserDTOToUser toUser;

@Autowired
private UserToUserDTO toDto;

@RequestMapping(method=RequestMethod.GET)
ResponseEntity> getUser()

List users = userService.findAll();

if(users == null || users.isEmpty()){
    return new ResponseEntity<>(HttpStatus.NOT_FOUND);
}

return new ResponseEntity<>(toDto.convert(users), HttpStatus.OK);
    }
}



@Repository
public interface UserRepository extends JpaRepository {

@Query("select u.id, a.number FROM User u LEFT JOIN u.addresses a WHERE u.id = a.user")
List findAll();
}