Has there been any solution to this issue (OJB188)? This bit me in the butt, but of course it took quite a bit of digging and debugging to realize this is what was happening. Why exactly is the value changed while prefetching?
I have a patched version of OJB that was based on HEAD from the middle of August, so I haven't been able to update for a while (don't want to repatch). It seems that there have been some changes to OJB since then with regards to (proxy) prefetching, autoretrieve, etc, especially in how those are configured in the repository. Are these summarized anywhere? John Marshall Connectria ============================================= Date: Fri, 11 Jul 2003 18:19:33 +0200 From: Jakob Braeuchi <[EMAIL PROTECTED]> Subject: Potential problem with prefetch-relationships ? Content-Type: text/plain; charset=ISO-8859-1; format=flowed hi theo, during prefetch auto-retrieve is disabled. when an other thread uses the relationship-desriptor it will find auto-retrive off. this is a known problem but i do not have a solution for it :( jakob Theo Niemeijer wrote: >Hi all, >I seemed to have stumbled on a potential problem with >the "prefetch relationship" option in PB query. > >After using prefetchRelationship for retrieval of big list of results, >and at the same time performing other queries, >I seemed to have lost the "auto-retrieve" attribute on >the collection descriptor. > >The result was that subsequent queries did not >retrieve that collection anymore, probably because the >"auto-retrieve" was disabled. > >The problem is quite hard to reproduce, but my guess is >that different threads modified the repository descriptor >in the wrong sequence, by means of the setCascadeRetrieve >method used in prepareRelationshipSettings. > >I might be wrong, because I simply do not oversee all aspects >of OJB. But am I right to view this as a potential problem >in "concurrency situations" like websites ? >I do not feel too comfortable that OJB makes these "temporary" >changes to the repository model. > >Cheers, > Theo Niemeijer --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
