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From Jarnot Voytek Contr AU HQ/SC <Voytek.Jar...@MAXWELL.AF.MIL>
Subject RE: [Newbie] ActionForm prepopulation
Date Wed, 29 Jan 2003 20:54:20 GMT
Why is JSP -> .do -> .do -> JSP bad?  

I don't think you could make a case for doing population in the form bean
constructor - too much logic.  Besides, it wouldn't work, as that same
constructor would be called when the user submitted the form - you wouldn't
want to redo the database calls then, right?  We don't do action -> action
very often (don't need to), but when needed it works fine.

--
Voytek Jarnot
Quidquid latine dictum sit, altum viditur.


> -----Original Message-----
> From: Bredesen, Chris - NA US HQ Delray
> [mailto:cbredesen@mytravelco.com]
> Sent: Wednesday, January 29, 2003 2:43 PM
> To: Struts Users Mailing List (E-mail)
> Subject: [Newbie] ActionForm prepopulation
> 
> 
> Hi group,
> 
> There's one general struts concept that I haven't fully gotten my arms
> around yet.  I'm trying to design without using action 
> chaining, but I have
> the following scenario:
> 
> - JSP posts to an action which accesses a form bean and does 
> some business
> logic
> - The next JSP in the process has a DIFFERENT form bean on 
> it, and values on
> that one must be prepopulated using ... another action?
> 
> This would cause JSP -> .do -> .do -> JSP which we know is bad.
> 
> So then do I pre-pop my Form bean values in the ActionForm 
> constructor?  As
> member variables?  What happens when reset() is called ... 
> how do I make
> sure they return to their proper initial values upon reset?
> 
> Thanks for participating,
> 
> Chris
> *Struts Evangelist in Training*
> 
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