[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - list's of composite-element's of Hibernate with Java Persist

[cwulf]

Using Hibernate 3 i could define composite-elements like @Embeddable with Java Persistence.
But Hibernate also allows collections of those composite-element's.


  | <class name="entity.Company">
  | ...
  |    <list name="company_addresses">
  |         <key column="id"/>
  |         <list-index column="no"/>
  |         <composite-element class="entity.Address">
  |               <property name="street"/>
  |               ...
  |         </composite-element>
  |    </list>
  | ...
  | </class>
  | 
  | <class name="entity.Freelancer">
  | ...
  |    <list name="freelancer_addresses">
  |         <key column="id"/>
  |         <list-index column="no"/>
  |         <composite-element class="entity.Address">
  |               <property name="street"/>
  |               ...
  |         </composite-element>
  |    </list>
  | ...
  | </class>
  | 

That way i could use an entity like Address in multiple tables linked with several other entities without unnecessary inheritance like CompanyAddress extends Address and FreelancerAddress extends Address or even a kind of polymorphism like Company extends Addressable and Freelancer extends Addressable...

Is it possible to design such a mapping with EJB 3 annotations?



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