Re: [hibernate-users] (no subject)

Hello, I'm using Jboss-4.0.5-GA in the ejb3 configuration. I'm trying to implement the following entities and relationships, without success: Entity: Security Entity: Trade Entity: Allocation extends Trade Security->Trade is one-to-many with Trade as the relationship owner Trade->Security is many-to-one Security->Allocation is one-to-one with Allocation as the relationship owner Allocation->Security is one-to-one The basic idea is that while a Security may have a collection of Trades associated with it, at most one can be an Allocation. And if a Security has an associated Allocation, then that Allocation must appear in the Trades collection of the Security as well. I've tried this approach: @Entity public class Security { … @OneToMany(mappedBy="security") public Collection<Trade> getTrades() {…} @OneToOne(mappedBy="security") public Allocation getAllocation() {…} }