Hi I'm trying to remove a few child elements from a onetomany relationship.
like :
| for (Role r : presentRolesToRemove.keySet()) {
| focusSubject.getActors().remove(presentRolesToRemove.get(r));
| }
|
(presentRolesToRemove being a Map<Role,Actor>)
But doing a em.merge(focusSubject); does not remove the childs from the
database. Should I do a em.delete(presentRolesToRemove.get(r)); explicitely
within the for-loop?
Or is there annotation to circumvent this manual deletion?
Thanks in advance.
jeroen.
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