Hi Armin
I'm not using the ODMG API so I can't confirm this for you, I'm using PB only. The only object that the app CRUD's (via OJB) is the User object.
We did notice that this issue is intermittent and stopped for a while but then started up again.
In test suite is a test called ...broker.sequence.NativeIdentifierTest. This test use SequenceManagerNativeImpl and run against hsql and mysql. You can easy run this test in your IDE. Maybe you can reproduce your problem with this test or you can add a new test to show your problem.
regards, Armins
----- Original Message ----- From: "Armin Waibel" <[EMAIL PROTECTED]> To: "OJB Users List" <[EMAIL PROTECTED]> Sent: Wednesday, July 07, 2004 10:53 AM Subject: Re: sequencemanagernative and mysql
Hi Jin,
Jin Bal wrote:
At the moment it is not causing side effects as there is no key
collision
(yet) - I was wondering whether this was expected behaviour.
My understanding is that OJB uses a temp negative PK before insert.
does it
then lookup the db generated one and set it in the persistent object
durign
the afterStore() operation?
yep! I made some tests with PB-api and ODMG-api and it seems that when using the odmg api + SequenceManagerNativeImpl + main object with single reference, the FK set in the main object be wrong (negative value). Is this your problem too?
Haven't got any code to post right now (will follow shortly) could
there be
an issue with the cache (i.e not flushing after insert)?
normally the object will be stored to cache after the afterStore() call.
regards, Armin
Thanks Jin
----- Original Message ----- From: "Armin Waibel" <[EMAIL PROTECTED]> To: "OJB Users List" <[EMAIL PROTECTED]> Sent: Tuesday, July 06, 2004 5:57 PM Subject: Re: sequencemanagernative and mysql
Hi Jin,
Jin Bal wrote:
I'm finding that the PK field with autoincrement are negative numbers -
is this normal behaviour or is somehting up?
hmm, the negative values are temporary used before the object was written to DB. See here
http://db.apache.org/ojb/docu/guides/sequencemanager.html#Identity+based+seq
uence+manager
Does it cause side-effects in your environment? Could you post some pseudo code to show the problem?
regards, Armin
TIA Jin
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