0 Replies Latest reply on Apr 17, 2011 3:58 PM by Alex Pavlov

    Timer boundary event on WorkItemNode

    Alex Pavlov Newbie

      jBPM 5 does not allow attaching timer boundary events to WorkItemNode. The following fragment:

       

       

              <receiveTask completionQuantity="1" id="_2_1_21" implementation="##WebService" instantiate="false"

                           isForCompensation="false" messageRef="ID_30607364_7317_2206_0052_000400200024"

                           name="Receive confirmation" startQuantity="1">

                  <incoming>_2_1_22</incoming>

                  <outgoing>_2_1_25</outgoing>

              </receiveTask>

       

              <boundaryEvent attachedToRef="_2_1_21" id="_2_1_21_1" name="48 Hours">

                  <outgoing>_2_1_21_2</outgoing>

                  <timerEventDefinition id="ID_22607364_7317_2206_0052_000400200027">

                      <timeCycle>P48H</timeCycle>

                  </timerEventDefinition>

              </boundaryEvent>

       

       

       

      results in exception:

       

      java.lang.ClassCastException: org.jbpm.workflow.core.node.WorkItemNode cannot be cast to org.jbpm.workflow.core.node.CompositeContextNode

       

      while executing this line (ProcessHandler.java, line #280):

       

      CompositeContextNode compositeNode = (CompositeContextNode) attachedNode;

       

      Both CompositeContextNode and WorkItemNode extend StateBasedNode class, which defines addTimer() - the only method called from ProcessHandler while processing timer boundary event. In other words, changing the offending line to

       

      StateBasedNode compositeNode = (StateBasedNode) attachedNode;

       

      will compile and will not result in run time exception. However, will it run? In other words, would it be sufficient to enable timer boundary events for work item nodes?