<configure xmlns="http://namespaces.zope.org/zope"
           xmlns:zcml="http://namespaces.zope.org/zcml">

    <!-- Let ITTWLockable objects react to AT specific events. We reuse
         the generic event handlers in plone.locking for simplicity
      -->

    <subscriber
        zcml:condition="installed plone.locking"
        for="plone.locking.interfaces.ITTWLockable
             .interfaces.IEditBegunEvent"
        handler="plone.locking.events.lockOnEditBegins" 
        />

    <subscriber
        zcml:condition="installed plone.locking"
        for="plone.locking.interfaces.ITTWLockable
             .interfaces.IEditCancelledEvent"
        handler="plone.locking.events.unlockAfterModification"
        />

    <subscriber 
        zcml:condition="installed plone.locking"
        for="plone.locking.interfaces.ITTWLockable
             .interfaces.IObjectEditedEvent"
        handler="plone.locking.events.unlockAfterModification"
        />

	<subscriber 
        zcml:condition="installed plone.locking"
        for="plone.locking.interfaces.ITTWLockable
             .interfaces.IObjectInitializedEvent"
        handler="plone.locking.events.unlockAfterModification"
        />

</configure>