[jboss-user] [EJB 3.0] - Persisting

[jactor]

I am trying to develop a entity which extends another entity and which use the annotation @Inheritance(strategy = InheritanceType.TABLE_PER_CLASS), but this only provides an exception as the sub class does not have an @Id annotated:

org.hibernate.MappingException: Cannot use identity column key generation with <union-subclass> mapping for: concept.entity.Entity

However: If I do annotate this @Id, I get this one:

org.hibernate.AnnotationException: Unable to define/override @Id(s) on a subclass: concept.entity.Entity

Suggestions?

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