Re: How to use TransactionDelegate to do audit logging?

[Aristedes Maniatis]

On 9/30/06, Jeff de Vries <[EMAIL PROTECTED]> wrote:

What I'm *really* trying to do is that we have about 15-20 different
types of alerts, and a bunch of rules that specify some additional
processing that needs to take place when certain types of alerts are

places alerts are created, I thought I'd be "clever" and put all the
rule processing stuff in one place, looking at the alerts as they get
written out.  So, as a complete workaround, I could just go add the

Or, if there was a convenient place to hook some "aspect-oriented"
programming stuff (which is what I guess I'm doing), like a
Alert.onSave(), that would work too.

generated. Rather than scatter the rules around the umpteen different rules to the umpteen different places the alerts are getting generated.

http://cwiki.apache.org/CAYDOC/lifecycle-callbacks.html

I think it will do exactly what you need.




Ari Maniatis



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Actually support to do exactly this is now built into Cayenne 3.0 and we are using it in production. It was added only in the last fortnight, but is working really well. As for auditing, I wonder whether this callback work now makes the auditing approach redundant? It appears that the callbacks are a more general implementation of what Mike has done and might be able to be used for his auditing requirements.

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