Unique items in Hibernate collections
- by Rickard Lindberg
I have defined a collection in Hibernate like this:
...
public class Item {
...
@ElementCollection
List<Object> relatedObjects;
}
It creates a mapping table with colums item_id and object_id.
The problem is that object_id seems to be unique. In other words I can not have two different items being related to the same object. But that is what I want.
I would like the combination of item_id and object_id to be unique. How do I do that?
