Hi,
I am new to JBPM.
what is the error messsage mean? "object references an unsaved transient
instance".
I have the following code:
| public void ejbCreate() throws CreateException {
| log.debug("ejbCreate() is called");
| JbpmConfiguration config = null;
| try {
| InitialContext ic = new InitialContext();
| config = (JbpmConfiguration) ic
| .lookup("java:/jbpm/JbpmConfiguration");
| JbpmContext context = config.createJbpmContext();
| log.debug("config="+config);
|
| ProcessDefinition processDefinition =
ProcessDefinition.parseXmlString(
| "<process-definition>" +
| " <start-state>" +
| " <transition to='s' />" +
| " </start-state>" +
| " <state name='s'>" +
| " <transition to='end' />" +
| " </state>" +
| " <end-state name='end' />" +
| "</process-definition>"
| );
|
| // The next line creates one
execution of the process definition.
| // After construction, the process
execution has one main path
| // of execution (=the root token)
that is positioned in the
| // start-state.
| ProcessInstance processInstance =
| new
ProcessInstance(processDefinition);
| Token token =
processInstance.getRootToken();
|
| // Also after construction, the main
path of execution is positioned
| // in the start-state of the process
definition.
|
log.debug(""+processDefinition.getStartState().equals(token.getNode()));
|
| token.signal();
|
log.debug(""+processDefinition.getNode("s").equals(token.getNode()));
| token.signal();
|
log.debug(""+processDefinition.getNode("end").equals(token.getNode()));
| } catch (NamingException ne) {
| log
| .error(
| "JbpmConfiguration was
not found using JNDI. Is the SAR setup and deployed?",
| ne);
| throw new CreateException(
| "Cannot find JbpmConfiguration. Make
sure jbpm.sar is configured correctly.");
| // config =
JbpmConfiguration.parseResource(SERVICE_CONFIG);
| // try {
| // InitialContext ic = new InitialContext();
| // ic.bind(SERVICE_JNDI, config);
| // } catch (NamingException ne2) {
| // log.error("Unable to bind JbpmConfiguration for
services", ne2);
| // throw new CreateException(
| // "Could not bind JbpmConfiguration for services");
| // }
| }
| }
|
In addition, i have a servlet to create the instance of this session bean.
But the following error happened:
anonymous wrote :
| 16:14:13,981 DEBUG [JbpmServiceManagerBean] true
| 16:14:13,982 DEBUG [GraphElement] event 'before-signal' on 'State(s)' for
'Token(/)'
| 16:14:13,982 DEBUG [GraphElement] event 'node-leave' on 'State(s)' for
'Token(/)'
| 16:14:13,983 DEBUG [GraphElement] event 'transition' on
'Transition(8ab10c)' for 'Token(/)'
| 16:14:13,983 DEBUG [GraphElement] event 'node-enter' on 'EndState(end)' for
'Token(/)'
| 16:14:13,984 DEBUG [GraphElement] event 'process-end' on
'ProcessDefinition(6da7d4)' for 'Token(/)'
| 16:14:13,985 DEBUG [DbPersistenceServiceFactory] creating persistence
service
| 16:14:13,985 DEBUG [DbPersistenceService] creating hibernate session
| 16:14:13,986 DEBUG [DbPersistenceService] beginning hibernate transaction
| 16:14:13,996 ERROR [SchedulerSession]
org.hibernate.TransientObjectException: object references an unsaved transient
instance - save the transient instance before flushing:
org.jbpm.graph.exe.ProcessInstance
| 16:14:13,998 ERROR [LogInterceptor] EJBException in method: public abstract
com.ternary.wirelessthermometer.JbpmServiceManagerLocal
com.ternary.wirelessthermometer.JbpmServiceManagerLocalHome.create() throws
javax.ejb.CreateException, causedBy:
| javax.ejb.EJBException: null; CausedByException is:
|
|
Please help!
yang
Why tr
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