Vishal, can you please open a new issue at http://jira.codehaus.org/browse/CASTOR, and I'll have a look at this your problem (once I am back from a trip to London on Nov 3rd, 2005).
Regards Werner On Wed, 26 Oct 2005 16:28:04 +0530, [EMAIL PROTECTED] wrote: > >Hi, > >I am trying to retrieve the record CounterVar (id=4, type=1) - see >mapping file description below - in one transaction. In the same >program, with a different transaction, I am trying to retrieve the >record CounterVar (id=1, type=1) in the DbLocked mode. Note that in both >cases the type field references the same record. This results in my >second transaction getting LockNotGrantedException (writeLockTimeout). >When I rollback both transactions and retry the retrieve (in the context >of the same process), I observed that the call to QueryResults.size() >returns 1, but the call to QueryResults.hasMore() returns false. On >further investigation, I found that the call to hasMore() sees the >following exception stack trace: > >org.exolab.castor.jdo.ObjectNotFoundException: The object of type >CounterVar with identity 1 was not found in persistent storage > at >org.exolab.castor.persist.LockEngine.load(LockEngine.java:385) > at >org.exolab.castor.persist.TransactionContext.load(TransactionContext.jav >a:651) > at >org.exolab.castor.persist.QueryResults.fetch(QueryResults.java:229) > at >org.exolab.castor.jdo.engine.OQLQueryImpl$OQLEnumeration.hasMore(OQLQuer >yImpl.java:633) > at >org.exolab.castor.jdo.engine.OQLQueryImpl$OQLEnumeration.hasMore(OQLQuer >yImpl.java:614) > at TestWriteLockTimeout.main(TestWriteLockTimeout.java:84) > >In looking at the code, I see that LockEngine.load() is actually >converting the exception ObjectDeletedWaitingForLockException into >ObjectNotFoundException. > >I am guessing that this is happening because of the previous >(unsuccessful) retrieve. Any idea how this can be fixed? > >Regards, Vishal. > >PS: I have test programs that simulate this problem. I can send it if >someone is interested in looking at the problem. > >I have the following mapping in my test program: ><mapping> > > <!-- Mapping for CounterType table --> > <class name="CounterType" > identity="id" key-generator="IDENTITY"> > <cache-type type="none" /> > <map-to table="COUNTER_TYPE" /> > > <field name="id" type="integer" > > <sql name="counter_type_id" type="integer"/> > </field> > <field name="description" type="string"> > <sql name="counter_type_desc" type="varchar" /> > </field> > > </class> > > <!-- Mapping for CounterVar table --> > <class name="CounterVar" > identity="id" key-generator="IDENTITY"> > <cache-type type="none" /> > <map-to table="COUNTER_VAR" /> > > <field name="id" type="integer" > > <sql name="counter_var_id" type="integer"/> > </field> > <field name="number" type="integer" > > <sql name="counter_var_number" type="integer"/> > </field> > <field name="type" type="CounterType"> > <sql name="counter_var_type" /> > </field> > </class> ></mapping> > > > >Confidentiality Notice > >The information contained in this electronic message and any attachments to >this message are intended >for the exclusive use of the addressee(s) and may contain confidential or >privileged information. If >you are not the intended recipient, please notify the sender at Wipro or >[EMAIL PROTECTED] immediately >and destroy all copies of this message and any attachments. > >------------------------------------------------- >If you wish to unsubscribe from this list, please >send an empty message to the following address: > >[EMAIL PROTECTED] >------------------------------------------------- > ------------------------------------------------- If you wish to unsubscribe from this list, please send an empty message to the following address: [EMAIL PROTECTED] -------------------------------------------------
