[rules-dev] Drools Flow Persisternce Stack Overflow Error
Mauricio Salatino
salaboy at gmail.com
Tue Oct 6 13:13:06 EDT 2009
Hi, no problem.
Basically you don't need to pass the ProcessInstance to the rules, because
you can make inferences using the information inside the process instance in
your rules.
If you can share what you want to do in your rules, I can help you..
Greetings
On Tue, Oct 6, 2009 at 8:31 AM, premkumar <premkumar.sivanandan at gmail.com>wrote:
>
> Thanks Maurico on your response. yes i am using bitronics .
>
> I have identified why this error happens when i have insert
> ProcessInstance
> obect to session as a fact to made available them in drools rule file
> conditions both LHS and RHS. Since the process instance is not implements
> Serializable.
>
> Let me give details about me project tt is spring based web project with
> hibernate .
>
> If you have any inputs how can i pass ProcessInstance object to Rules when
> am using JPAKnowledgeService.
>
>
> Find the Persistence.xml below
>
> <persistence-unit name="org.drools.persistence.jpa"
> transaction-type="JTA">
> <provider>org.hibernate.ejb.HibernatePersistence</provider>
> <jta-data-source>processInstanceDS</jta-data-source>
> <class>org.drools.persistence.session.SessionInfo</class>
>
> <class>org.drools.persistence.processinstance.ProcessInstanceInfo</class>
>
>
> <class>org.drools.persistence.processinstance.ProcessInstanceEventInfo</class>
> <class>org.drools.persistence.processinstance.WorkItemInfo</class>
>
> <properties>
> <property name="hibernate.dialect"
> value="org.hibernate.dialect.H2Dialect"/>
> <property name="hibernate.max_fetch_depth" value="3"/>
> <property name="hibernate.hbm2ddl.auto" value="update"/>
> <property name="hibernate.show_sql" value="true"/>
> <property name="hibernate.transaction.manager_lookup_class"
>
> value="org.hibernate.transaction.BTMTransactionManagerLookup"/>
> </properties>
> </persistence-unit>
> </persistence>
>
> Datasource intialization code
>
> PoolingDataSource ds = new PoolingDataSource();
> ds.setUniqueName("processInstanceDS");
>
> ds.setClassName("org.h2.jdbcx.JdbcDataSource");
> ds.setMaxPoolSize(3);
> ds.setAllowLocalTransactions(true);
> ds.getDriverProperties().put("user", "sa");
> ds.getDriverProperties().put("password", "sasa");
> ds.getDriverProperties().put("URL",
> "jdbc:h2:file:/NotBackedUp/data/process-instance-db");
> ds.init()
> Thanks
> Prem
>
>
> Mauricio Salatino wrote:
> >
> > are you using bitronix and an EJB3 container?
> > can you explain us your infrastructure? what kind of projects do you
> have,
> > etc.
> > Thanks!
> >
> > On Tue, Oct 6, 2009 at 2:18 AM, premkumar
> > <premkumar.sivanandan at gmail.com>wrote:
> >
> >>
> >> Hi
> >>
> >> I am new to drools flow and trying to use the persistence using
> >> JPAKnowledgeService. When i tried that got the stack overflow error in
> H2
> >> db.
> >>
> >> Can any one provide the guidance how to resolve this.
> >>
> >> The exception trace is below
> >>
> >> Hibernate: insert into SessionInfo (id, dirty, lastModificationDate,
> >> rulesByteArray, startDate) values (null, ?, ?, ?, ?)
> >> After the persistence Session @@@@@@
> >> Oct 6, 2009 2:42:21 PM bitronix.tm.twopc.Preparer prepare
> >> WARNING: executing transaction with 0 enlisted resource
> >> Oct 6, 2009 2:42:21 PM bitronix.tm.twopc.Preparer prepare
> >> WARNING: executing transaction with 0 enlisted resource
> >> Oct 6, 2009 2:42:22 PM bitronix.tm.twopc.Preparer prepare
> >> WARNING: executing transaction with 0 enlisted resource
> >> Hibernate: insert into ProcessInstanceInfo (processInstanceId,
> >> externalVariables, lastModificationDate, lastReadDate, processId,
> >> processInstanceByteArray, startDate, state, OPTLOCK) values (null, ?, ?,
> >> ?,
> >> ?, ?, ?, ?, ?)
> >> Hibernate: insert into WorkItemInfo (workItemId, creationDate, name,
> >> processInstanceId, state, OPTLOCK, workItemByteArray) values (null, ?,
> ?,
> >> ?,
> >> ?, ?, ?)
> >> Executing work item WorkItem 22 [name=Human Task, state=0,
> >> processInstanceId=21, parameters{ActorId=Admin, Comment=Raise Tk
> Request,
> >> Skippable=false, TaskName=Raise Tk Request}]
> >> Hibernate: update ProcessInstanceInfo set externalVariables=?,
> >> lastModificationDate=?, lastReadDate=?, processId=?,
> >> processInstanceByteArray=?, startDate=?, state=?, OPTLOCK=? where
> >> processInstanceId=? and OPTLOCK=?
> >> Hibernate: insert into ProcessInstanceInfo_eventTypes
> >> (ProcessInstanceInfo_processInstanceId, element) values (?, ?)
> >> Hibernate: delete from WorkItemInfo where workItemId=? and OPTLOCK=?
> >> Hibernate: update SessionInfo set dirty=?, lastModificationDate=?,
> >> rulesByteArray=?, startDate=? where id=?
> >> ****** ut ******* a BitronixTransactionManager with 0 in-flight
> >> transaction(s)
> >> Oct 6, 2009 2:42:22 PM bitronix.tm.BitronixTransaction
> >> fireBeforeCompletionEvent
> >> WARNING: Synchronization.beforeCompletion() call failed for
> >> org.hibernate.ejb.AbstractEntityManagerImpl$1 at 1824d2c, marking
> >> transaction
> >> as rollback only
> >> javax.persistence.PersistenceException: java.lang.RuntimeException:
> >> java.lang.StackOverflowError
> >> at
> >>
> >>
> org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:516)
> >> at
> >>
> >>
> bitronix.tm.BitronixTransaction.fireBeforeCompletionEvent(BitronixTransaction.java:366)
> >> at
> >> bitronix.tm.BitronixTransaction.commit(BitronixTransaction.java:142)
> >> at
> >>
> >>
> bitronix.tm.BitronixTransactionManager.commit(BitronixTransactionManager.java:96)
> >> at
> >>
> >>
> org.drools.persistence.session.SingleSessionCommandService.execute(SingleSessionCommandService.java:258)
> >> at
> >>
> >>
> org.drools.command.impl.CommandBasedStatefulKnowledgeSession.insert(CommandBasedStatefulKnowledgeSession.java:305)
> >> at com.sample.POCTestClient.main(POCTestClient.java:57)
> >> Caused by: java.lang.RuntimeException: java.lang.StackOverflowError
> >> at
> >> org.hibernate.ejb.event.BeanCallback.invoke(BeanCallback.java:31)
> >> at
> >>
> >>
> org.hibernate.ejb.event.EntityCallbackHandler.callback(EntityCallbackHandler.java:80)
> >> at
> >>
> >>
> org.hibernate.ejb.event.EntityCallbackHandler.preUpdate(EntityCallbackHandler.java:65)
> >> at
> >>
> >>
> org.hibernate.ejb.event.EJB3FlushEntityEventListener.invokeInterceptor(EJB3FlushEntityEventListener.java:41)
> >> at
> >>
> >>
> org.hibernate.event.def.DefaultFlushEntityEventListener.handleInterception(DefaultFlushEntityEventListener.java:330)
> >> at
> >>
> >>
> org.hibernate.event.def.DefaultFlushEntityEventListener.scheduleUpdate(DefaultFlushEntityEventListener.java:270)
> >> at
> >>
> >>
> org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:151)
> >> at
> >>
> >>
> org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219)
> >> at
> >>
> >>
> org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99)
> >> at
> >>
> >>
> org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:49)
> >> at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1027)
> >> at
> >> org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:365)
> >> at
> >>
> >>
> org.hibernate.ejb.AbstractEntityManagerImpl$1.beforeCompletion(AbstractEntityManagerImpl.java:504)
> >> ... 6 more
> >> Caused by: java.lang.StackOverflowError
> >>
> >> thanks
> >> Prem
> >> --
> >> View this message in context:
> >>
> http://www.nabble.com/Drools-Flow-Persisternce-Stack-Overflow-Error-tp25765337p25765337.html
> >> Sent from the drools - dev mailing list archive at Nabble.com.
> >>
> >> _______________________________________________
> >> rules-dev mailing list
> >> rules-dev at lists.jboss.org
> >> https://lists.jboss.org/mailman/listinfo/rules-dev
> >>
> >
> >
> >
> > --
> > - http://salaboy.wordpress.com
> > - http://www.jbug.com.ar
> > - Salatino "Salaboy" Mauricio -
> >
> > _______________________________________________
> > rules-dev mailing list
> > rules-dev at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-dev
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/Drools-Flow-Persisternce-Stack-Overflow-Error-tp25765337p25771029.html
> Sent from the drools - dev mailing list archive at Nabble.com.
>
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>
--
- http://salaboy.wordpress.com
- http://www.jbug.com.ar
- Salatino "Salaboy" Mauricio -
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