Re: [drools-user] Stragegies for stacking Exceptions

2006-01-30 Thread Geoffrey Wiseman
On 1/30/06, Michael Neale [EMAIL PROTECTED] wrote: yep validation like that definately should be done with an object and a collection. Like you say, have a ValidationList class, and .addValidationFail() method that accumulates it. Exceptions generally are best avoided unless there is

Re: [drools-user] Stragegies for stacking Exceptions

2006-01-30 Thread Michael Neale
Good point. We will have to mention it in the manual for Drools 3. As a general rule, I would say don't throw any exceptions unless you want to rudely interrupt execution - that pretty much applies to any framework. In my naive youth, I use to use exceptions as means of communicating UI

RE: [drools-user] Stragegies for stacking Exceptions

2006-01-30 Thread Matthew Shaw
Hi Paul, in what framework are you using drools? I am using a struts plugin validator which accesses a set of validation rules stored in my drl. This works very nicely as it leaves the grunt work to the struts validator, ie. collecting the errors and displaying them appropriately.

Re: [drools-user] Stragegies for stacking Exceptions

2006-01-30 Thread Paul Smith
Agreed. It was poor design on my part as I realised that I couldn't do all the validation in one hit and return all the errors for that logical unit of work. Remedied that one now, reserved the exceptions for something critical/fatal. On 1/31/06, Michael Neale [EMAIL PROTECTED] wrote: Good

RE: [drools-user] Stragegies for stacking Exceptions

2006-01-30 Thread Matthew Shaw
I haven't used EJB3 yet, but your solution sounds good. -Original Message- From: Paul Smith [mailto:[EMAIL PROTECTED] Sent: Tuesday, 31 January 2006 10:01 AM To: user@drools.codehaus.org Subject: Re: [drools-user] Stragegies for stacking Exceptions I agree with you and pretty much came