get processinstance with task id
galvino Sep 20, 2007 3:59 AMhi 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)