It looks like the EJB3 spec does not support an entity bean with a FK as part
of its compound PK. I've managed to find JBoss/hibernate docs which describe
their work around for the problem, and I've managed to get that to work.
The last hurdle that I can't figure out is how to map the reverse association.
It looks like the ManyToOne in the Embedded PK isn't actually part of the
EntityBean and so I can't reference it in the mapped by clause from the
associated Entity Bean.
Abbreviated table structure is as follows:
tblParent
parentId (PK)
...
tblChild
parentId (FK) (PK)
sequence (PK)
...
Very Abbreviated Entities as follows:
@Entity
public class ParentBean {
...
/** HOW SHOULD I ANNOTATE THIS **/
@OneToMany(mappedBy="parent") <-- DOESNT WORK
@OneToMany(mappedBy="pk.parent") <-- DOESNT WORK
public Set< ChildBean > getChildren();
public void setChildren(Set< ChildBean > children);
...
}
@Entity
@AssociationOverride( name="pk.parent", joinColumns =
@JoinColumn(name="parent_parentId") )
public class ChildBean {
@EmbeddedId public ChildPK pk;
}
@Embeddable
public class ChildPK {
@ManyToOne
public ParentBean parent;
public Integer sequence;
}
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972208#3972208
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3972208
_______________________________________________
jboss-user mailing list
[email protected]
https://lists.jboss.org/mailman/listinfo/jboss-user
