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To: users@cocoon.apache.org
From: Olivier Billard <olivier.billard.cocoon@laposte.net>
Subject: Re: flowscript - pipeline has already been processed...
Date: Mon, 09 Aug 2004 12:53:24 +0200
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Message-ID: <cf7l2a$79i$1@sea.gmane.org>
References: <1092041795.41173c43286fe@imp3-q.free.fr>
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Hi,

If you're using the flow, don't forget to set a return after a cocoon.sendPage(). Otherwise, the flow continues and may meet a 
cocoon.sendPage again, causing this error.

<wrong-code>
     if (condition) {
         cocoon.sendPage(page1);
     }
     // condition did not match
     cocoon.sendPage(page2)
<wrong-code>

<good-code>
     if (condition) {
         cocoon.sendPage(page1);
         // exit the function
         return;
     }
     // condition did not match
     cocoon.sendPage(page2)
<good-code>

HTH,
--
Olivier Billard


defe@free.fr wrote:

> hi,
> 
> i have an IllegalStateException when trying to aggregate a flowscript response
> with other xml parts. It says "pipeline has already been processed for this
> request".
> 
> <map:aggregate element="page">
>   <map:part src="cocoon://foo.xml"/>
>   ....
> <map:aggregate>
> 
> where,
> <map:match pattern="foo.xml">
>   <map:call function="foo"/>
> </map:match>
> 
> <map:match pattern="foo.jx">
>  <map:generate type="jx" ...>
>  ...
>  <map:serialize type="xml"/>
> </map:match>
> 
> 
> what does "the pipeline has already been processed for this request" means
> exactly?
> 
> thanks.


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