From: Robert Dober <robert.dober@...>
Date: 2008-06-19T06:34:19+09:00
Subject: Re: Rather validate values or use exceptions?

On Wed, Jun 18, 2008 at 11:11 PM, ara.t.howard <ara.t.howard@gmail.com> wrote:
>
> On Jun 18, 2008, at 3:08 PM, Joshua Muheim wrote:
>
>> After googling for Race Condition I guess I know now what this should
>> be, but I don't know how to avoid it...? Any suggestions? :-)
>
> try to find it, if it doesn't race an exception you're all good.  rescue the
> exception when not found if that makes sense.  in otherwords basically your
> second approach.
>
yes maybe it will become clearer to you if you imagine that in your
first approach you would need to lock the table before executing your
if statement, and that of course is a dangerous, resource consuming
approach.

The second approach just uses one single atomic (at least at the
abstraction level we are operating here) acess.

Cheers
Robert




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---
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