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Posted to user@commons.apache.org by Anders Kofoed <an...@avaleo.net> on 2006/12/26 21:40:47 UTC

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Anders Kofoed
Avaleo ApS


-----Original Message-----
Reply-To: "Jakarta Commons Users List" <co...@jakarta.apache.org>
Date: Tue, 26 Dec 2006 15:40:14 -0500
From: "Rahul Akolkar" <ra...@gmail.com>
To: "Jakarta Commons Users List" <co...@jakarta.apache.org>
Subject: Re: [Chain]: Frameworks and Products using chain api

> On 12/20/06, Craig McClanahan <cr...@apache.org> wrote:
> > On 12/20/06, Virender Singh <vi...@gmail.com> wrote:
> > >
> > > Hi,
> > >
> > > I am analysing commons-chain for use in our framework. Are there any
> > > frameworks/products that are using commons-chain api? I have heard of
> > > struts-chain. I do not have any idea as to how much is it in use? The list
> > > of products would help in convincing the team to use the api and that it
> > > is
> > > not another framework on which some work was done and then left in
> > > oblivion.
> >
> <snip-struts-and-shale-usecases/>
> >
> > Chain fits best in a scenario where there is a detailed straight line flow,
> > and you can define your tasks in finely grained reusable pieces ("Commands"
> > in the Chain vocabulary) that can be assembled into customized sequences for
> > each task.  Chain fits worst when you are trying to use it as a control
> > architecture for a workflow with lots of conditional branches.  For that
> > case, you might look at a state machine architecture like the one supported
> > by Commons SCXML[2] instead.
> >
> <snap/>

> And there are scenarios where leveraging both libraries ( [chain] and
> [scxml] ) makes sense (typically by calling a command chain from
> executable content within a SCXML document). Here [i] is a related
> post from the archives.

> -Rahul

> [i] http://marc.theaimsgroup.com/?l=jakarta-commons-user&m=114375623812367&w=2



> > Craig
> >
> > [1] http://shale.apache.org/
> > [2] http://jakarta.apache.org/commons/scxml/
> >
> >
> > Thanks,
> > > Virender
> > >
> > >
> >
> >

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