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From Brian McCallister <mccallis...@forthillcompany.com>
Subject Detecting Metadata Changes
Date Tue, 14 Sep 2004 13:13:53 GMT
I am working on a distributed cache implementation which transmits 
dirties only, and transmits just the table and pk information (over JMS 
(using ActiveCluster)) so that non-OJB clients can dirty caches.

A problem I am having is how to detect runtime changes of metadata. 
Searching the entire repository for every dirty even received is a 
terrible option, imho, but caching the descriptor information is risky 
as heck as there is no mechanism for detecting runtime metadata changes 
of which I am aware.

Is there one I don't know about?

If not the workaround is simply to tell anyone using this cache that 
they need to call a static method (which will broadcast the change 
notification) when they make runtime metadata changes if they are using 
this cache.



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