Hi,
I am using the jbpm console for orchestrate my process definition. However,
some of the process nodes request asynchronous tasks to external systems. When
those tasks finish, the workflow engine receives an incoming message through
JMS (openMQ). What I'm currently doing in response to that message is just to
signal the root token to the next node:
| try {
|
| MapMessage mapMessage = (MapMessage)message;
| JbpmConfiguration conf = JbpmConfiguration.getInstance();
| JbpmContext ctx = conf.createJbpmContext();
| try {
|
| ProcessInstance processInstance =
ctx.loadProcessInstanceForUpdate(Long.parseLong(mapMessage.getString("processInstance")));
| processInstance.getRootToken().signal();
|
| }finally {
| ctx.close();
| }
|
|
It works but I'm getting this obvious exception:
| ERROR - AbstractFlushingEventListener.performExecutions(301) | Could not
synchronize database state with session
| org.hibernate.StaleObjectStateException: Row was updated or deleted by
another transaction (or unsaved-value mapping was incorrect):
[org.jbpm.graph.exe.Token#64]
| at
org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1769)
| at
org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2412)
| at
org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2312)
| at
org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2612)
| at
org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:96)
| at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)
| at
org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)
| at
org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:168)
| 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
org.jbpm.persistence.db.DbPersistenceService.commit(DbPersistenceService.java:256)
| at
org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:214)
| at org.jbpm.svc.Services.close(Services.java:225)
| at org.jbpm.JbpmContext.close(JbpmContext.java:139)
| at
com.marketsentinel.workflow.messaging.MessageListener.onMessage(MessageListener.java:42)
| at
com.sun.messaging.jmq.jmsclient.MessageConsumerImpl.deliverAndAcknowledge(MessageConsumerImpl.java:338)
| at
com.sun.messaging.jmq.jmsclient.MessageConsumerImpl.onMessageToListenerFromReceiveQueue(MessageConsumerImpl.java:316)
| at
com.sun.messaging.jmq.jmsclient.SessionReader.onMessageToLateListeners(SessionReader.java:171)
| at
com.sun.messaging.jmq.jmsclient.SessionReader.deliver(SessionReader.java:149)
| at
com.sun.messaging.jmq.jmsclient.ConsumerReader.run(ConsumerReader.java:189)
| at java.lang.Thread.run(Thread.java
|
Since I'm creating a new different hibernate session/Jbpm context from the
message listener. I wonder how could I get the JbpmContext used by the console
in order to use the same session to update the token status.
I've been searching the jbpm4jsf source code and all the action classes use a
static "context" . Where does that object is instanciated?
Thanks.
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