OnDeleteChildAssociationPolicy problem

nowhere — Wed, 08 Apr 2009 22:08:47 GMT

Hi all,I have created my class as followublic class MyClass implements NodeServicePolicies.OnCreateChildAssociationPolicy, NodeServicePolicies.OnDeleteChildAssociationPolicy { // Dependencies private NodeService nodeService; private PolicyComponent policyComponent; private

Re: OnDeleteChildAssociationPolicy problem

hpalma — Tue, 12 May 2009 11:16:10 GMT

I'm also getting this problem. The OnDeleteChildAssociation event is never called.
Did you find a solution for this ?

Re: OnDeleteChildAssociationPolicy problem

nowhere — Tue, 12 May 2009 16:51:25 GMT

Hi hpalma,
I found an alternative way for the problem in the post…
But, after your post, I had a look at alfresco code and I found a possible cause.

In DbNodeServiceImpl the method "removeChildAssociation" has the following code (a piece):

if (assocRef.isPrimary())
        {    NodeRef childNodeRef = assocRef.getChildRef();
            // Delete the child node
            this.deleteNode(childNodeRef);
            // Done
            return true;
        }else
        {
            // Delete the association
            invokeBeforeDeleteChildAssociation(childAssocRef);
            nodeDaoService.deleteChildAssoc(assocId);
            invokeOnDeleteChildAssociation(childAssocRef);
            // Index
            nodeIndexer.indexDeleteChildAssociation(childAssocRef);
            // Done
            return true;
        }
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

So, probably, your as mine is a primary association and "invokeOnDeleteChildAssociation(childAssocRef)" is never called.
As test I rebuild alfresco with bold lines addes as follows:

if (assocRef.isPrimary())
        {   

            NodeRef childNodeRef = assocRef.getChildRef();
            
            [b]invokeBeforeDeleteChildAssociation(childAssocRef);[/b]
            // Delete the child node
            this.deleteNode(childNodeRef);
            
            [b]invokeOnDeleteChildAssociation(childAssocRef);[/b]
            // Done
            return true;
        }
        else
        {
            // Delete the association
            invokeBeforeDeleteChildAssociation(childAssocRef);
            nodeDaoService.deleteChildAssoc(assocId);
            invokeOnDeleteChildAssociation(childAssocRef);
            // Index
            nodeIndexer.indexDeleteChildAssociation(childAssocRef);
            // Done
            return true;
        }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

and the OnDeleteChildAssociation event is triggered. But I don't know much about primary association so I can't figure out why alfresco code is in that way. ops:
We could ask more expert forum members to explain us this. :roll:

Also, since "deleteNode" is called in case of primary association (and "deleteNode" calls "invokeOnDeleteNode" and "invokeBeforeDeleteNode") you could take a chance and substitute your "onDeleteChildAssociation" policy with onDeleteNode or beforeDeleteNode policy on your child node type.

That's all…hoping it could be at least a good start point…let me know!

*Edit: bold is not visible in code tag, I left the b tag to make visible the changes.

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