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From giacomo <>
Subject Re: Why WebApp programming is harder than necessary with C2
Date Tue, 05 Jun 2001 20:36:24 GMT
On Tue, 5 Jun 2001, Berin Loritsch wrote:

> There is one point in the webapp that makes WebApp developing
> more difficult than necessary in Cocoon2.  This has to do with
> redirects.  I was originally for not allowing redirects for
> generators, transformers, and especially serializers.  However,
> I always tried to advocate leaving that ability in Actions.
> As a result, we have our Sitemap handle too many concerns.
> NEVER should the sitemap handle WebApp LOGIC.  I don't mind
> having it specify the Actions to use, or even rearrange their
> order.  I do mind that I have to do some serious fenangling
> with sitemap parameters and dynamic logic to embed program
> logic in the sitemap.
> I propose to allow the Environment object to be passed to
> Actions in the objectModel.  That way, Actions can still do
> redirects--easing program development.  This also simplifies
> the site administrators duties in that they no longer have
> to know the gory details of how the program logic works.
> All the time, it also removes the ability for the other
> sitemap components to perform redirects.
> The current programming model is too restrictive--and I have
> to do true HACKS to get around it.  I have a program to
> release to a customer soon, and it would really simplify my
> life if I can handle site security and redirects conveniently
> in Actions.

I knew it will come sooner or later. Maybe we should have a Redirector
interface that a concrete Environment should implement to enable an
Action to do redirects only (I don't see the other methods of
the Environment interface be relevant to an Action).

As this is a change of an Interface (Action) this should be
implemented VERY SOON as Carsten will do the dists tomorrow.


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