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From Andrus Adamchik <>
Subject Re: Raising an exception in a callback
Date Tue, 26 Feb 2008 09:56:27 GMT

On Feb 26, 2008, at 11:45 AM, Alexander Lamb (dev) wrote:

> Hello List,
> I want to prevent a delete of an object if certain attributes have  
> certain values (e.g. do not delete an invoice which has already been  
> sent).
> I registered the callback in the Modeler. Works fine.
> I do my test in the callback function I defined, it works fine.
> Except that to "stop" the delete, I raise a RuntimeException (I  
> don't see any other way). It works and is catched by the delete.  
> However I do not get my exception, but an exception Cayenne has  
> generated.
> What is the correct way to raise an exception and transfer up the  
> correct error message?
> Thanks,
> Alex

Without looking at the code, IIRC CayenneRuntimeException.getCause()  
should store your exception.


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