see comments inline...
Hi,
Possibility:
Box box = boxDao.findNextFreeBox(BoxType.STANDARD); //
Does this 'box' an existing persistent box, possibly with _version
= 1?
correct.
where boxDao.save() is only a wrapper to em.persist(object)
then this box should be merged. Attempted to persist() will hit the
DuplicateKey exception at database which is getting translated to
EntityExistsException to the application.
Ok. this worked of course. Then i need to ask inside the save() method
if this object is detached or not and then do either a em.merge() or a
em.persist() correct?
Marc
