Activiti CDI and Execution Listener

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se040

Hi again,

having another issue This time I changed to the CdiJtaProcessEngineConfiguration for using CDI and JTA (obviously ) and I am facing an issue with the execution listener, which worked fine before using that kind of engine. I have implemented a class to catch a process end event but since the change it doesn't seem to be invoked anymore. I tried various things to get to a solution, including using class/expression/delegateexpression variants for this purpose, implemented listeners of sequence flow and start event with same result and I tried using the configuration from the book Activiti in Action (beans.xml changes for interceptors + additional property customPostBPMNParseListeners on my config). Nothing seems to work for me, the process finishes and however the configuration or type of invocation nothing happens. Is this normal and I have to use CDI Event Listening? I tried that but since I am not an expert on JEE I wasn't sure how to do it and research didn't help (I used the configuration from the camunda site and implemented a method catching all events in a new / unrelated SessionScoped bean method and it also never got invoked).

Since I don't have any exceptions, cause it all basically works, I don't know what more information I can provide.

Things I tried:
…
<extensionElements>
      <activiti:executionListener event="end" delegateExpression="${processOneEndListener}"></activiti:executionListener> –> processOneEndListener (@Named) has method required: public void notify(DelegateExecution execution) throws Exception
           or
      <activiti:executionListener event="end" expression="${processOneEndListener.testMe(execution)}"></activiti:executionListener> –> processOneEndListener also @Named
</extensionElements>
…

activiti.cfg.xml
…
<bean id="processEngineConfiguration" class="org.activiti.cdi.CdiJtaProcessEngineConfiguration">
      <property name="dataSourceJndiName" value="jdbc/MyActiviti" />
      <property name="transactionManager" ref="transactionManager" />
      <property name="history" value="full" />
      <!– using externally managed transactions –>
      <property name="transactionsExternallyManaged" value="true" />
      <property name="databaseSchemaUpdate" value="true" />
      <property name="jobExecutorActivate" value="true" /> // also tried false since i wasn't sure how i had it before
      <property name="customPostBPMNParseListeners">
         <list>
            <bean class="org.activiti.cdi.impl.event.CdiEventSupportBpmnParseListener" />
         </list>
      </property>
   </bean>
…

beans.xml
…
<interceptors>
      <class>org.activiti.cdi.impl.annotation.StartProcessInterceptor</class>
      <class>org.activiti.cdi.impl.annotation.CompleteTaskInterceptor</class>
</interceptors>
….

I would really appreciate it if someone could help me and look into this or generally could give me an idea how to implement the following logic: I want to use an end event listener to change the data state of entity entries in a database created in the process. While the process is still active all data has no valid date (null for that time) and i store information about Tables/Entities used in process in a process variable. All my entities have a field for the process id so i can easily retrieve them. For example in my process i create and persist a book entity. It has a name, id, valid date (Timestamp) and a processinstanceid. So when first saving it in the process all fields are filled but the valid date. This should be updated at process end.

Thanks in advance,
Stefan

frederikherema1

Do you get an exception when the process ends or is the task-listener just not called? Are you 100% sure the listener isn't called?

I have implemented a class to catch a process end event but since the change it doesn't seem to be invoked anymore

After changing to JTA, it's not working anymore?