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From Dakota Jack <>
Subject Re: Coupling, Struts and JSF
Date Tue, 04 Jan 2005 17:33:46 GMT
Why not just create a helper class common to the two actions and not
chain a third action?  Likewise, if this is the main difficulty, why
not just follow through on divorcing the form and the action?  That
would be GREAT!


On Tue, 4 Jan 2005 10:44:11 -0500, Sean Schofield
<> wrote:
> > A use case is:
> >
> > - Two struts actions (say CreateAction and EditAction call the same jsp
> > to view the result (say result.jsp).
> > - This result.jsp needs some setup (eg. a list of items for a selection
> > box).
> > - The natural way to populate such a list in struts, is in the action.
> > - To prevent having the logic to populate the list both in CreateAction
> > and in EditAction,
> >  some users create a new ResultAction, where they do the view
> > preparation.
> > - Then they chain the action (this is controversal stuff):
> >  . In CreateAction they do creation logic, and than forward to
> > ResultAction.
> >  . In EditAction they do edit logic, and than forward to ResultAction.
> >
> > As discussed in bug 16107:
> >
> I guess JSF deals with this by having a single jsf page that has a
> single "backing bean" to populate itself.  Right?
> I suppose one implication of this is that the logic necessary to
> "populate" a page is coupled with the page itself (or at least the
> choice of logic).  There's probably not really a way to avoid this.  I
> guess Struts really does this too but the binding takes place in
> struts-config.xml.  The more that I think about it, it's easier to
> find the logic in the page itself instead of hunting around
> struts-config looking for it. :-)
> > Regards, Jan
> sean
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"You can lead a horse to water but you cannot make it float on its back."

~Dakota Jack~

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