Hi all,
we were working for quite some time with hibernate 3.1.0 using version columns with values generated by a database trigger for optimistic locking.
Due to Bug HHH-1750 we have to update to a newer Version of hibernate (i.e. 3.2.2).
Now all updates are failing with StaleObjectStateExceptions.
I did some debugging and found
Code:
if ( persister.isVersionPropertyGenerated() ) {
// we need to grab the version value from the entity, otherwise
// we have issues with generated-version entities that may have
// multiple actions queued during the same flush
previousVersion = persister.getVersion( instance, session.getEntityMode() );
}
in the EntityUpdateAction wich is new (from 3.1.0 to 3.2.2) and imho is the reason for the Exceptions we see.
Even though, I don't think this piece of code shouldn't be there. It simply forces an existing misbehaviour out into the sunlight. I would like to know, why hibernate increases the version in the entity at all, when it is mapped with generated="always". It happens in the DefaultFlushEntityEventListeners getNextVersion method called upon flush from the scheduleUpdateMethod. I'd expect this only to happen, if the generated attribute is set to never.
Did anybody encounter the same problem? Is this a bug or a intended behaviour of hibernate? If it is the later could somebody please explain the intention?
I found one similiar posting without any reply in this forum (
http://forum.hibernate.org/viewtopic.php?t=968644&sid=c4834a123fd66e30379f0e579ddef081). The workaround described there seems to work for us, but thats kind of unsatisfying.
Any Help would be appreciated
Thanx Dr. Z
Hibernate version: 3.2.2 Mapping documents:Code:
<hibernate-mapping>
<class name="de.fhg.sigma.webzeb.pojo.ZewPos" table="ZEW_POS"
select-before-update="true">
<id name="sysIsn" type="de.fhg.sigma.commons.type.SysIsnType">
<column name="SYS_ISN" />
<generator
class="de.fhg.sigma.commons.persistence.SysIsnGenerator">
<param name="sequence">SYS_SEQUENCE</param>
</generator>
</id>
<version column="SYS_VERSION" name="sysVersion" type="java.lang.Long"
generated="never" insert="true"/>
(... ommited the other properties as they are of no importance...)
</class>
</hibernate-mapping>
Just a plain session.saveOrUpdate(zeb);
Full stack trace of any exception that occurs:Code:
de.fhg.sigma.commons.persistence.DataAccessException: Fehler im Commit der Transaktion
at de.fhg.sigma.commons.persistence.SessionProvider.commitTransaction(SessionProvider.java:338)
at de.fhg.sigma.webzeb.usecasecontroller.ZebReleaseController.release(ZebReleaseController.java:109)
at de.fhg.sigma.webzeb.usecasecontroller.ZebReleaseController$$EnhancerByCGLIB$$894e8921.CGLIB$release$0(<generated>)
at de.fhg.sigma.webzeb.usecasecontroller.ZebReleaseController$$EnhancerByCGLIB$$894e8921$$FastClassByCGLIB$$90b62785.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:167)
at de.fhg.sigma.webzeb.security.AuthorizationInterceptor.intercept(AuthorizationInterceptor.java:58)
at de.fhg.sigma.webzeb.usecasecontroller.ZebReleaseController$$EnhancerByCGLIB$$894e8921.release(<generated>)
at de.fhg.sigma.webzeb.businessDelegate.ZebManagerBDImpl.release(ZebManagerBDImpl.java:100)
at de.fhg.sigma.webzeb.struts.action.CreateZebAction.releaseZebs(CreateZebAction.java:404)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:274)
at de.fhg.sigma.webzeb.struts.action.BaseLookupDispatchAction.dispatchMethod(BaseLookupDispatchAction.java:480)
at org.apache.struts.actions.LookupDispatchAction.execute(LookupDispatchAction.java:160)
at de.fhg.sigma.webzeb.struts.action.BaseLookupDispatchAction.execute(BaseLookupDispatchAction.java:109)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.valves.RequestFilterValve.process(RequestFilterValve.java:275)
at org.apache.catalina.valves.RemoteAddrValve.invoke(RemoteAddrValve.java:80)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:199)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:282)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:744)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:674)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:866)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [de.fhg.sigma.webzeb.pojo.ZewKopf#230685684080]
at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1761)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2403)
at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2303)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2603)
at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:92)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
at de.fhg.sigma.commons.persistence.SessionProvider.commitTransaction(SessionProvider.java:334)
... 39 more
Name and version of the database you are using:
Oracle 9i
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