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Date: Mon, 04 Feb 2008 18:41:16 +0100
From: Marcel Reutegger <marcel.reutegger@gmx.net>
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To: dev@jackrabbit.apache.org
Subject: Re: synchronous item/node listeners
References: <C3C50539.14F4C%Richard.Frazer@sas.com>
In-Reply-To: <C3C50539.14F4C%Richard.Frazer@sas.com>
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Richard Frazer wrote:
> So, I'm implementing my own access manager and am storing my access control
> info in a db.  I'd like to be able to clean up the access control info at
> the time that a node is deleted within the same XA transaction as the node
> being deleted.  My ideal solution would be a synchronous listener that would
> be fired at the time of the delete, in which I can abort the delete if the
> access control info for some reason couldn't be deleted from the db.  So
> far, the only listeners I have found are asynchronous and occur outside the
> transaction boundary.  Any help would be appreciated.

if your listener implements 
org.apache.jackrabbit.core.observation.SynchronousObservationListener it will be 
notified synchronously *after* the transaction has been committed. please note 
that the listener cannot veto the change, since it has already been committed.

regards
  marcel