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From Joe Baldwin <jfbald...@earthlink.net>
Subject Re: Rollbacks and Listeners
Date Mon, 09 Aug 2010 15:01:53 GMT
Wouldn't an important business-concern (or rule) be that if there was indeed a rollback, then
one might want to log it (via a Cayenne insert)?

I am doing something like this right now and it is a tad tricky.



 
On Aug 9, 2010, at 10:37 AM, Mike Kienenberger wrote:

> On Mon, Aug 9, 2010 at 5:41 AM, Bruno René Santos <brunorene@holos.pt> wrote:
>> Im using cayenne on a banking system, where commits and rollbacks are critical.
>> I was thinking about using cayenne callbacks to include the creation of logs
>> during database operations. My doubt is what happens when there is a rollback on
>> the database during a transaction in terms of callbacks? Do all Pre... callbacks
>> are called but no Post.. callbacks? Is there any way to know on the callbacks
>> that the objects were rollbacked?
> 
> As long as you create the audit records in the same transaction as the
> rest of the data, when the transaction is rolled back or committed,
> then the audit logs will be rolled back or committed.   You should not
> have to do anything on a Post, only on a Pre.
> 
> ============
> 
> An old issue on auditing is here.   Not sure how relevant it is for
> 3.0 as I haven't used 3.0 yet.
> 
> https://issues.apache.org/jira/browse/CAY-414
> 
> Some newer threads on auditing:
> 
> http://mail-archives.apache.org/mod_mbox/cayenne-dev/200902.mbox/%3CB82E356A-3B9B-4D40-B767-2F7C863AAF77@objectstyle.org%3E
> 
> Andrey posted one set of code for doing this here -- read through the
> whole thread.
> 
> http://mail-archives.apache.org/mod_mbox/cayenne-user/200903.mbox/%3C3219fff70903240316o4644e474ia669ea819510ef9f@mail.gmail.com%3E


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