How to retrieve business key from task delegate

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yangyang_qian

Our web app currently starts a process with a business key …

String processName = getProcessName();
String businessKey = getBusinessKey();
ProcessEngine processEngine = ProcessEngines.getDefaultProcessEngine();
RuntimeService runTimeService = processEngine.getRuntimeService();
ProcessInstance processInstance = runTimeService.startProcessInstanceByKey(processName, businessKey);
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the process runs and then waits at the first user task to be externally signalled via a TaskListener attached to the User Task … so in my

public class GenericHumanTaskListener implements TaskListener {
     public void notify (DelegateTask delegateTask) { … } 
}
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function I am trying to retrieve the business key that the process started with through the delegateTask object … is there a way to do so?

I guess the alternative would be to start the process with a variables HashMap … but I was hoping the business key would be retrievable without having to restore to putting it in the variables map.

dankre

Hi,

I have not tested it. Propably you can give it a try. You have to inject an instance of your runtimeService to your Tasklistener.

<br>ProcessInstanceQuery processInstanceQuery = runtimeService.createProcessInstanceQuery();<br>ProcessInstance result = processInstanceQuery.processInstanceId(delegateExecution.getProcessInstanceId()).singleResult();<br>String businessKey = result.getBusinessKey();<br>
Regards,
Daniel