CODEWITHSUNDEEP
activiti
Learner
Learner

Reputation: 2339

Error - Cannot resolve identifier when trying to use executionListener- Activiti

I am trying to invoke a method from activiti sequence flow but I am getting the below error, can someone please help me fix this issue?

<sequenceFlow id="finalTask" name="finalTask" sourceRef="chargeAccount" targetRef="theEnd">
            <extensionElements>
                <activiti:executionListener
                    expression="${EscalationListener.escalate(execution, 'kermit')}"
                    event="end" />
            </extensionElements>
        </sequenceFlow>

Error:

Caused by: org.activiti.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'EscalationListener' at org.activiti.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:8

Java code:

import org.activiti.engine.HistoryService;
import org.activiti.engine.delegate.DelegateExecution;

public class EscalationListener {
    HistoryService historyService;

    public void escalate(DelegateExecution execution, String otherTaskId)
            throws Exception {

        historyService.createHistoricTaskInstanceQuery().taskOwner(otherTaskId)
                .finished();
        //System.out.println("called history service" + otherTaskId);

        // do some stuff with the task
    }

}

Upvotes: 1

Views: 10067

Answers (2)

dgmora
dgmora

Reputation: 1269

<activiti:executionListener
                expression="${EscalationListener.escalate(execution, 'kermit')}"
                event="end" />

try to change EscalationListener per escalationListener here. I had problems sometimes because of this sometimes.

Sadly this PropertyNotFoundException: Cannot resolve identifier happens quite a lot when you have errors. And at least for me, it's not helping you...

Upvotes: 0

ATMTA
ATMTA

Reputation: 767

You need to add EscalationListener as a process variable :

runtimeService.setVariable(yourExecutionId, "escalationListener" , new EscalationListener());

You can also add process variable before starting the process:

runtimeService.startProcessInstanceByKey("someKey", processVariables);

processVariables is a Map<String, Object> where you put EscalationListener object

or declare it as Spring bean to access it in process definition:

<bean id="EscalationListener" class="com.test.activiti.listener.EscalationListener" >

Upvotes: 4

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