[jboss-user] [JBoss jBPM] - get processinstance with task id
hi every body,
i want to get a processinstance by using a task id,
i am using:
| public ProcessInstance getProcessInstance(String taskId){
| jbpmContext=jbpmConfiguration.createJbpmContext();
| try{
| taskInstance=this.getTaskinstanceByID(taskId);
| processInstance=taskInstance.getTaskMgmtInstance().getProcessInstance();
| System.out.println("\n id processinstance:
"+processInstance.getId());
| // processInstance=graphSession.getProcessInstance(processInst.getId());
| }catch(Exception exception){exception.printStackTrace();}
| finally{
| jbpmContext.close();
| }
| return processInstance;
| }
|
where :
| public TaskInstance getTaskinstanceByID(String taskInstanceId){
| try{
| jbpmContext=jbpmConfiguration.createJbpmContext();
| taskInstance = jbpmContext.getTaskInstance(Long.parseLong(taskInstanceId));
| }finally{
| jbpmContext.close();
| }
| return taskInstance;
| }
|
there is an error when it execute:
| processInstance=taskInstance.getTaskMgmtInstance().getProcessInstance();
|
error is:
| GRAVE: could not initialize proxy - the owning Session was closed
| org.hibernate.LazyInitializationException: could not initialize proxy - the owning
Session was closed
| at
org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:60)
| at
org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:111)
| at
org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:150)
| at
org.jbpm.taskmgmt.exe.TaskMgmtInstance$$EnhancerByCGLIB$$6d252382.getProcessInstance(<generated>)
| at com.savoi.business.TaskBusiness.getProcessInstance(TaskBusiness.java:80)
| at com.savoi.actions.ValidateAction.performAction(ValidateAction.java:48)
| at com.savoi.actions.BaseAction.execute(BaseAction.java:17)
| at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
| at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
| at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
| at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
| at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
| at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
| at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
| at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
| at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
| at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
| at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
| at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
| at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870)
| at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
| at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
| at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
| at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
| at java.lang.Thread.run(Unknown Source)
|
|
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