3 Replies Latest reply on Aug 1, 2008 1:49 PM by kukeltje

    ContextInstance of a non-null ProcessInstance is null

    coolex
    coolex Jul 31, 2008 4:59 PM

      Hello!

      I have this method which I call from a jboss rule:

      public void dosth(org.jbpm.graph.exe.ProcessInstance processInstance){
 System.out.println("The Id of the process is: "+ processInstance.getId() );
 System.out.println("The value of the variabel is: "+ processInstance.getContextInstance().getVariable("owner") );
}
      The result is:
      The Id of the process is: 1
The value of the variabel is: null

      I am 100% sure that I have set the process variable before with this code:
      org.jboss.seam.bpm.ProcessInstance.instance().getContextInstance().setVariable("owner", "testowner");

      I made some other tests, so I know very well that this variable has been set perfectly.
      The rule is also working without any problems.
      But why I can't get the ContextInstance out of my non-null ProcessInstance?

      bye

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        • 1. Re: ContextInstance of a non-null ProcessInstance is null
          coolex
          coolex Jul 31, 2008 5:27 PM (in response to coolex)

          Maybe the processdefinition will help:

          <process-definition xmlns="" name="Ordering">

 <start-state name="start">
 <transition to="FirstNode" name="firstNode"></transition>
 </start-state>

 <task-node name="FirstNode">
 <task name="FirstNode">
 <assignment class="org.jboss.seam.drools.DroolsAssignmentHandler">
 <workingMemoryName>policyPricingWorkingMemory</workingMemoryName>
 <assertObjects>
 <element>#{actor}</element>
 <element>#{processInstance}</element>
 <element>#{processManager}</element>
 </assertObjects>
 </assignment>
 </task>
 <transition to="SecondNode" name="secondNode"></transition>
 </task-node>
...
</process-definition>


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          • 2. Re: ContextInstance of a non-null ProcessInstance is null
            coolex
            coolex Jul 31, 2008 6:29 PM (in response to coolex)

            I figured out that the rule (defined in the first Node) is triggered before the process instance was created.
            But this does not happen if I define the rule in the second node. In this case everything works fine.
            Can I define the process that way that the process-instance will be created before the rule (in the first task is triggered).

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            • 3. Re: ContextInstance of a non-null ProcessInstance is null
              kukeltje
              kukeltje Aug 1, 2008 1:49 PM (in response to coolex)

              This assignmenthandler is developed within Seam. I think you might have more success is their forum.

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