[jboss-dev-forums] [Design of JBoss jBPM] - signalling with newly created token instance

[maheshraj_4u]

hi i created an instance of token and trying to signal the process with the newly created token. here im not using the root token for signalling. so im trying to save the data in the tables and im getting the token id of the root token as 500 and the token which i created has the token id 0. and its throwing the error hibernate transient object exception. can any one just help me out


here is the code 


package com.westpac.nzlo.tempjbpm;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;

import org.jbpm.JbpmConfiguration;
import org.jbpm.JbpmContext;
import org.jbpm.graph.exe.ProcessInstance;
import org.jbpm.graph.exe.Token;

public class CreateDuplicateToken {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		JbpmConfiguration jbpmConfiguration = null;
		 JbpmContext jbpmContext = null;
		
		 try {
			jbpmConfiguration = JbpmConfiguration.parseInputStream(new FileInputStream("src/config.files/jbpm.cfg.xml"));
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		 jbpmContext = jbpmConfiguration.createJbpmContext();
		 
		 System.out.println("Create Duplicate Token:");
		 System.out.print("Enter the ProcessInstance ID: ");

			BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
			long processInstanceID = 0 ;
			try {
				processInstanceID = Long.parseLong(br.readLine());
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
		 
			ProcessInstance processInstance = jbpmContext.loadProcessInstanceForUpdate(processInstanceID);
			
			Token rootToken = processInstance.getRootToken();
			
			Token duplicateToken = new Token();
			
			duplicateToken.setNode(rootToken.getNode());
			
			
System.out.println("Root TokenID: "+rootToken.getId());
System.out.println("Duplicate TokenID: "+duplicateToken.getId());
System.out.println("ProcessInstance of Duplicate: "+duplicateToken.getProcessInstance().getId());
System.out.println("Parent of Duplicate: "+duplicateToken.getParent().getId());


			jbpmContext.save(duplicateToken);
			duplicateToken.signal();
			jbpmContext.save(duplicateToken);
			
			jbpmContext.close();
			
	}

}




here is the exception 



org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session
	at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:171)
	at org.jbpm.svc.Services.close(Services.java:211)
	at org.jbpm.JbpmContext.close(JbpmContext.java:141)
	at com.westpac.nzlo.tempjbpm.CreateDuplicateToken.main(CreateDuplicateToken.java:66)
Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: org.jbpm.graph.exe.Token
	at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:216)
	at org.hibernate.type.EntityType.getIdentifier(EntityType.java:108)
	at org.hibernate.type.ManyToOneType.isDirty(ManyToOneType.java:221)
	at org.hibernate.type.TypeFactory.findDirty(TypeFactory.java:476)
	at org.hibernate.persister.entity.AbstractEntityPersister.findDirty(AbstractEntityPersister.java:2803)
	at org.hibernate.event.def.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:467)
	at org.hibernate.event.def.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:190)
	at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:113)
	at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195)
	at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980)
	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:353)
	at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
	at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:161)
	... 3 more
18:06:33,500 [main] ERROR Services : problem closing service 'persistence'
org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session
	at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:171)
	at org.jbpm.svc.Services.close(Services.java:211)
	at org.jbpm.JbpmContext.close(JbpmContext.java:141)
	at com.westpac.nzlo.tempjbpm.CreateDuplicateToken.main(CreateDuplicateToken.java:66)
Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: org.jbpm.graph.exe.Token
	at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:216)
	at org.hibernate.type.EntityType.getIdentifier(EntityType.java:108)
	at org.hibernate.type.ManyToOneType.isDirty(ManyToOneType.java:221)
	at org.hibernate.type.TypeFactory.findDirty(TypeFactory.java:476)
	at org.hibernate.persister.entity.AbstractEntityPersister.findDirty(AbstractEntityPersister.java:2803)
	at org.hibernate.event.def.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:467)
	at org.hibernate.event.def.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:190)
	at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:113)
	at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195)
	at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980)
	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:353)
	at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
	at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:161)
	... 3 more
org.jbpm.JbpmException: problem closing services {persistence=org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session}
	at org.jbpm.svc.Services.close(Services.java:223)
	at org.jbpm.JbpmContext.close(JbpmContext.java:141)
	at com.westpac.nzlo.tempjbpm.CreateDuplicateToken.main(CreateDuplicateToken.java:66)
Caused by: org.jbpm.persistence.JbpmPersistenceException: couldn't commit hibernate session
	at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:171)
	at org.jbpm.svc.Services.close(Services.java:211)
	... 2 more
Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: org.jbpm.graph.exe.Token
	at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:216)
	at org.hibernate.type.EntityType.getIdentifier(EntityType.java:108)
	at org.hibernate.type.ManyToOneType.isDirty(ManyToOneType.java:221)
	at org.hibernate.type.TypeFactory.findDirty(TypeFactory.java:476)
	at org.hibernate.persister.entity.AbstractEntityPersister.findDirty(AbstractEntityPersister.java:2803)
	at org.hibernate.event.def.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:467)
	at org.hibernate.event.def.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:190)
	at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:113)
	at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:195)
	at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:76)
	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:980)
	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:353)
	at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
	at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:161)
	... 3 more


thnx

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