[hibernate-dev] Fwd: NaturalIdLoadAccess behaviour on 2Lcache is this expected?

[Steve Ebersole]

On 04/30/2012 08:30 AM, Demetz, Guenther wrote:
> Whilst point 6 represents definitely a bug  (I opened https://hibernate.onjira.com/browse/HHH-7287)

Well, again, I am not so sure this is a bug.

First, in the test you go out of your way to mix transactional and 
non-transactional access to the database.  If you change your 
non-transactional access to instead be transactional, it works.  Your 
in-line comments mention something about SERIALZABLE txn isolation, but 
this is against H2 and just using (default) READ COMMITTED.

I am not a fan of writing tests with and developing solutions based on 
non-transactional access.

Anyway, like I said in one of my earlier replies, Hibernate could 
certainly support this use case if thats what we all decide it should. 
But I will limit this to natural ids mapped as mutable.  The reason 
being that there will be alot of overhead in supporting this correctly 
and it is really only relevant for mutable natural ids.  Developers who 
have developed their apps to leverage non-mutable natural ids should not 
suffer in this perf hit.

-- 
steve at hibernate.org
http://hibernate.org