How to use custom types (UserType) for Id

adambrod · **Joined:** Fri Nov 03, 2006 10:01 am **Posts:** 6

Hi-

Instead of all my objects using Longs or Strings as the Ids, I want to create my own Identifier objects. For example, in the database my user_id column is a number, but I want to map that to a UserIdentifier object in my User class. Can I do with with annotations?

Here is what I'm trying to do (but it doesn't work):

Code:

@Table(name = "IL_USER")
public class User {
    @Id
    @Column(name = "USER_ID")
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "USER_ID_SEQ")
    @SequenceGenerator(name = "USER_ID_SEQ", sequenceName = "USER_ID_SEQ")
    private UserIdentifier id;
}

UserIdentifier is just a simple bean that stores a long value internally.

I have tried marking UserIdentifier with @Embedded and using the @IdClass on User, but none of that works since UserIdentifier is not a composite key.

Thanks for any tips!

emmanuel · **Posted:** Tue Nov 07, 2006 6:42 pm

@Type