Frusteration & Confusion

[ddurst555808]

I have been attempting to write a simple application using Spring Data & Mongo DB for about the last 24 hours.

I have come across a number of different internet postings and view the examples that are provided by spring. However from what I can see is there is a large number of different approaches to accomplishing this task.

These solutions range from using DI to setup the standard mongo libraries and making direct calls to using Repositories in with Spring.

The later of the 2 is what I really wish to accomplish as it is the most Spring(ish) and will probably be better supported moving forward. Unfortunately I can not seem to find a complete example of implementing repositories.

So far I have proceeded to the following (Posting code below)


@Document
public class User implements Serializable{
@Id
private String emailAddress;
@Indexed
private String erpId;
private String firstName;
private String lastName;
private String passwordEnc;
private Boolean active;

//Getters and Setters below
}

Question #1: @Id does not seem to exist anywhere in Spring or Mongo libraries from what I can see, should javax.persistence.Id be used?


@Repository
public interface IUserRepository extends MongoRepository<User,String>{
public User findByErpId(String erpId);
public User findByEmail(String email) throws UsernameNotFoundException, DataAccessException;
}



@Repository
public class UserRepository implements IUserRepository {
@Autowired
MongoTemplate mongoTemplate;


private Boolean unique(String emailAddress) {
return mongoTemplate.findOne(Query.query(Criteria.where("emailAddress").is(emailAddress)), User.class) == null;
}
public User findByEmail(String emailAddress) {
return mongoTemplate.findOne(Query.query(Criteria.where("emailAddress").is(emailAddress)), User.class);
}
public User findByErpId(String erpId) {
return mongoTemplate.findOne(Query.query(Criteria.where("erpId").is(erpId)), User.class);
}
public List<User> save(Iterable<? extends User> iterable) {
List<User> saved = new ArrayList<User>();
for(User user : iterable) {
if(unique(user.getEmailAddress())) {
mongoTemplate.save(user);
saved.add(user);
}
}
return saved;
}

public List<User> findAll() {
return mongoTemplate.findAll(User.class);
}

public List<User> findAll(org.springframework.data.domain.Sort sort) {
return null; //To change body of implemented methods use File | Settings | File Templates.
}
}

Question #2: org.springframework.data.domain.Sort does not seem to exist, surely I am missing something (library, concept, common sense)
Question #3: Given the API I am not clear how I would implement using the Sort object passed in as it does not seem to be supported
by the Query object (I.E. no query.setSort(sort))

Thank you in advance for your assistance.

[ddurst555808]

I have resolved #2, I was simply missing the spring data commons libraries.

However other questions remain open.