Re: [hibernate-dev] Unexpected behavior for @PrePersist/@PreUpdate callback when using EntityManager#merge() on transient object
Forgot to mention :-
in case of calling persist(), hibernate doesn't invoke callback method with
copy object but the actual object passed to persist(); so for persist() it
works correctly.
On Tue, Aug 19, 2014 at 4:20 PM, deepak raut <deepak.raut77(a)gmail.com>
wrote:
I have an entity class like -
public class Item {
@Id
//mapping
private Long id;
@ElementCollection
//mapping
private Set<ItemWrapper> wrapperSet;
@Transient
private Map<Item, Boolean> itemPredecessor;
..........
..........
@PrePersist
@PreUpdate
private void populateSet() {
wrapperSet.clear();
for(Map.Entry<Item, Boolean> entry : itemPredecessor.entrySet()) {
wrapperSet.add(...);
}
}
..............
}
What happens is when I call entityManager.merge(...) with newly
instantiated object with itemPredecessor map having some entries in it.
Hibernate invokes callback method populateSet() with copy of instance
passed to merge() which doesn't contain itemPredecessor map with respective
entries as itemPredecessor is marked @Transient. I am using hibernate
4.3.5. Is this the right behavior?
--
Regards,
Deepak A. Raut
--
Regards,
Deepak A. Raut