you could try the "table per subclass" inheritance strategy: | @Entity | @Inheritance(strategy=InheritanceType.JOINED) | public class UserBase{ ... } | | @Entity | public class User extends UserBase{ ... } | this way, there will be a table for UserBase objects and a table for User objects. OR if you don't want UserBase to be an Entity you can use @MappedSuperclass on UserBase. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4067403#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...