RE: [Hibernate-devel] Update problems

[Gavin_King/Cirrus%<CI...@ci...>]

Whoooaahh:

>>> session.update(entry);

This line is a bit confusing....

Why do you call Session.update() here? entry is already associated with the
Session. Hibernate will detect changes to entry and update it's persistent
state accordingly. The semantics of Session.update() are: "update the
persistent state associated with the id with the state of the given
*transient* instance".

On the other hand, if everything else is right, the call to Session.update
() for a persistent object *should* do precisely nothing..... (I can judge
if this is the case from seeing the log.)

My suspicion is that everything else is *not* right since that would
explain why the collection is being removed (the first thing we would need
to do after a call to Session.update() is remove any existing collections
associated with that id).

Anyhow, that line is extraneous and you don't need it. Remove it and see
what happens. (But if the problem goes away we still need to understand
exactly why it occurred.)

Please, if you can send me actual code to step through, I would be able to
resolve this very quickly. Otherwise even just the log output would be very
helpful. I'm kinda stuck here if I can't reproduce this. Its just so
difficult given that we are in different timezones....

Gavin

P.S. I just (now) added some extra error detection in Session.update() so
try grabbing a CVS update + see if it throws a different exception this
time.