psdi.workflow

Class WFInstanceListener

java.lang.Object

psdi.workflow.WFInstanceListener

All Implemented Interfaces:

EventListener

public class WFInstanceListener
extends java.lang.Object
implements EventListener

for issue 74974 - need to clear EventResponses created by the instance when it is deactivated. Need to do this after actions are complete because ER might have been created/destroyed since the last save and if we try to delete in the same transaction we'll get a rowupdate error.

EventResponses created by the workflow are of two types. Actions may register responders, usually to prevent status changes. Wait nodes also register responders. To clear both types of responders, we delete all responders whose ref is set to this instance. Custom Actions which register responders should set the ref Mbo to the instance so they can be cleaned up correctly when the instance completes or is killed.

Created static listener class - issue 07-14085.

Author:

neville

Method Summary

Modifier and Type	Method and Description
static void	destroy() Unregister this listener.
void	eventAction(EventMessage em)
boolean	eventValidate(EventMessage em) Only interested when instances become inactive.
static WFInstanceListener	init() Returns the listener object.
void	postCommitEventAction(EventMessage em) After the asset is written to the database, this method updates the ancestor records.
void	preSaveEventAction(EventMessage em)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

init

public static WFInstanceListener init()

Returns the listener object. Creates one if not in existance yet.

Returns:

the listener

eventValidate

public boolean eventValidate(EventMessage em)
                      throws MXException

Only interested when instances become inactive.

Specified by:

eventValidate in interface EventListener

Throws:

MXException

See Also:

EventListener.eventValidate(psdi.server.event.EventMessage)

preSaveEventAction

public void preSaveEventAction(EventMessage em)
                        throws MXException

Specified by:

preSaveEventAction in interface EventListener

Throws:

MXException

eventAction

public void eventAction(EventMessage em)
                 throws MXException

Specified by:

eventAction in interface EventListener

Throws:

MXException

postCommitEventAction

public void postCommitEventAction(EventMessage em)
                           throws MXException

After the asset is written to the database, this method updates the ancestor records.

Specified by:

postCommitEventAction in interface EventListener

Throws:

MXException

destroy

public static void destroy()

Unregister this listener.