topic Re: Policy method 'beforeDeleteNode' gives an invalid NodeRef in Alfresco Archive

Policy method 'beforeDeleteNode' gives an invalid NodeRef

nicolasraoul — Tue, 20 Apr 2010 07:51:44 GMT

I want to perform something just before a node is deleted, so I implemented the "beforeNodeDelete" policyublic void beforeDeleteNode(NodeRef node) { if ( nodeService.hasAspect(node, MYASPECT) ) doSomething();}‍‍‍‍As expected, this method is called when I click on "delete" in the Web Client.

Re: Policy method 'beforeDeleteNode' gives an invalid NodeRef

derek — Wed, 21 Apr 2010 20:55:15 GMT

Hi,
The NodeRef should be valid during beforeDeleteNode. Can I see the code that sets up the policy callback, please?
Regards

Re: Policy method 'beforeDeleteNode' gives an invalid NodeRef

nicolasraoul — Thu, 22 Apr 2010 02:31:47 GMT

Hello Derek!
Here is how I set up the policy callback:

public void initialize() {
   this.policyComponent.bindClassBehaviour(
         QName.createQName(NamespaceService.ALFRESCO_URI,"beforeDeleteNode"), 
         QName.createQName("http://www.somecorp.co.jp/", "standardDocument"),
         new JavaBehaviour(this,"beforeDeleteNode",NotificationFrequency.TRANSACTION_COMMIT));
}‍‍‍‍‍‍

<bean id="deletePublishedContentPolicy" class="jp.co.somecorp.workflows.DeletePublishedContentPolicy" init-method="initialize">
   <property name="policyComponent" ref="policyComponent"/>
   <property name="nodeService" ref="nodeService"/>
   <property name="fileFolderService" ref="fileFolderService"/>
</bean>‍‍‍‍‍

Thanks for caring! 🙂

Re: Policy method 'beforeDeleteNode' gives an invalid NodeRef

derek — Thu, 22 Apr 2010 09:10:40 GMT

Hi, Nicolas
If you use the default NotificationFrequency, then you will get the notification as soon as it happens rather than at the end of the transaction, by which time the node really is gone. Naturally, should should not be trying to change the node you are about to delete but you could copy it and so on. I hope this helps.
Regards

Re: Policy method 'beforeDeleteNode' gives an invalid NodeRef

nicolasraoul — Fri, 23 Apr 2010 05:18:47 GMT

Thanks so much Derek!
Indeed, I changed TRANSACTION_COMMIT to EVERY_EVENT and it works!