[jboss-jira] [JBoss JIRA] Closed: (JBPM-990) Delete subprocess instances fails if super process token is not in process state

[Tom Baeyens (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBPM-990?page=all ]

Tom Baeyens closed JBPM-990.
----------------------------

    Resolution: Done

> Delete subprocess instances fails if super process token is not in process state
> --------------------------------------------------------------------------------
>
>                 Key: JBPM-990
>                 URL: http://jira.jboss.com/jira/browse/JBPM-990
>             Project: JBoss jBPM
>          Issue Type: Bug
>          Components: Core Engine
>    Affects Versions: jBPM jPDL 3.2
>            Reporter: Olga Ivanova
>         Assigned To: Tom Baeyens
>             Fix For: jBPM jPDL 3.2.2
>
>
> There was fixed issue "delete sub process instances recursively" (see http://jira.jboss.com/jira/browse/JBPM-614) that has been fixed. 
> Sub processes are deleted using following code:
> -------------------------------------------------------------------------------------------------------------------
> 		ProcessInstance subProcessInstance = token.getSubProcessInstance();
> 		if (subProcessInstance != null) {
> 			subProcessInstance.setSuperProcessToken(null);
> 			token.setSubProcessInstance(null);
> 			deleteProcessInstance(subProcessInstance);
> 		}
> -----------------------------------------------------------------------------------------------------------------------
> The problem is that token.getSubProcessInstance() returns something only while token is in process state, as soon as token leaves process state, getSubProcessInstance() returns null.
> The correct way to find sub process instances for current process is to query process instance by super process token, there is already defined named query in hibernate.queries.hbm.xml file - "GraphSession.findSubProcessInstances", so code should look following:
> ----------------------------------------------------------------------------------------------------------------------
> 		Query query = session
> 				.getNamedQuery("GraphSession.findSubProcessInstances");
> 		query.setLong("instanceId", token.getProcessInstance().getId());
> 		List<ProcessInstance> processInstances = query.list();
> 		if (processInstances == null || processInstances.isEmpty())
> 			return;
> 		for (ProcessInstance instance : processInstances) {
> 			instance.setSuperProcessToken(null);
> 			token.setSubProcessInstance(null);
> 			deleteProcessInstance(instance);
> 		}
> ---------------------------------------------------------------------------------------------------------------------------

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