Differences About Parse Listeners b/w 5.11 and 5.12

As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.

gokceng1

Hi,
I was using 5.11 till today and I was implementing my parse listeners that way:

public class ActivitiParseListener extends AbstractBpmnParseListener {
   private ExecutionListener executionListener;

   public ActivitiParseListener(ExecutionListener executionListener) {
      this.executionListener = executionListener;
   }

   @Override
   public void parseCallActivity(Element callActivityElement, ScopeImpl scope, ActivityImpl activity) {
      activity.addExecutionListener(ExecutionListener.EVENTNAME_START, executionListener);
   }
}‍‍‍‍‍‍‍‍‍‍‍‍

with that conf:

<bean id="unittestProcessEngineConfiguration" parent="mailDisabledProcessEngineConfiguration">
      <property name="customDefaultBpmnParseHandlers">
         <list>
            <bean class="….demo.utils.ActivitiParseListener">
               <constructor-arg name="activitiExecutionListener" ref="activitiExecutionListener"/>
            </bean>
         </list>
      </property>
   </bean>‍‍‍‍‍‍‍‍‍

Today I've migrated project to 5.12 and changed the code like that:

public class ActivitiParseListener implements BpmnParseHandler {
   //ActivitiExecutionListener is my class
   private ActivitiExecutionListener activitiExecutionListener;

   public ActivitiParseListener(ActivitiExecutionListener activitiExecutionListener) {
      this.activitiExecutionListener = activitiExecutionListener;
   }

   @Override
   public Collection<Class<? extends BaseElement>> getHandledTypes() {
      List<Class<? extends BaseElement>> classList = new ArrayList<Class<? extends BaseElement>>();
      classList.add(CallActivity.class);
      return classList;
   }

   @Override
   public void parse(BpmnParse bpmnParse, BaseElement element) {
      bpmnParse.setListenerFactory(new SomListenerFactory(activitiExecutionListener));
   }
…‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

where SomListenerFactory is:

public class SomListenerFactory extends DefaultListenerFactory {
   //ActivitiExecutionListener is my class
   private ActivitiExecutionListener activitiExecutionListener;

   public SomListenerFactory(ActivitiExecutionListener activitiExecutionListener) {
      this.activitiExecutionListener = activitiExecutionListener;
   }

   @Override
   public ExecutionListener createDelegateExpressionExecutionListener(ActivitiListener activitiListener) {
      return activitiExecutionListener;
   }
}‍‍‍‍‍‍‍‍‍‍‍‍‍

with conf :

<bean id="unittestProcessEngineConfiguration" parent="mailDisabledProcessEngineConfiguration">
      <property name="customDefaultBpmnParseHandlers">
         <list>
            <bean class="….demo.utils.ActivitiParseListener">
               <constructor-arg name="activitiExecutionListener" ref="activitiExecutionListener"/>
            </bean>
         </list>
      </property>
   </bean>‍‍‍‍‍‍‍‍‍

Is this correct way of doing it? Also I couldn't understand the use of classes under org.activiti.engine.impl.bpmn.listener and org.activiti.engine.impl.bpmn.parser. Are they intended to be used by us, or are they just internal classes?

frederikherema1

The listener-factory is intended to be used by activiti to create an Java-object to be used for ALL listeners. So this is not the best solution.

Have you read this piece in the user guide: http://activiti.org/userguide/index.html#advanced_parseHandlers ?

You can do something similar instead with user-tasks and add a task-listener instead.
<br>public class CustomUserTaskBpmnParseHandler extends ServiceTaskParseHandler {<br>&nbsp; <br>&nbsp; protected void executeParse(BpmnParse bpmnParse, ServiceTask serviceTask) {<br>&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp; // Do the regular stuff<br>&nbsp;&nbsp;&nbsp; super.executeParse(bpmnParse, serviceTask);<br>&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp; // Make always async<br>&nbsp;&nbsp;&nbsp; ActivityImpl activity = findActivity(bpmnParse, serviceTask.getId());<br>&nbsp;&nbsp;&nbsp; activity.setAsync(true);<br>&nbsp; }<br><br>}&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>