i have two objects that are connected (say object A can have reference to object B)
i pass both these objects from higher layer into hibernate-enabled layer
I do not know has A reference to B or has not, so i session.lock() both these
objects.
locking A object cascade locking B if there is reference, and lock only A if there no reference.
locking B after that causes NonUniqueObjectException if there was reference.

how can i overcome this? i do not know is there reference, so i can not selectevly lock only A.

i have found one solution in FAQ Hibernate throws: Another object was associated with this id
but this one does not satisfy me, since i have no reference on persistant instance of B at the time i lock B to evict() it, and saveOrUpdateCopy() returns reference on persistant instance and does not update argument but i can not update my B reference either.

are there other ways?