I think the only difference is that handle-errors 
are on per pipeline.
so for different error handling, you need separate pipelines.

BTW, internal-only=true/false is already a very good reason for having
several pipelines.



> -----Message d'origine-----
> De: Per Kreipke [mailto:[EMAIL PROTECTED]]
> Date: vendredi 14 juin 2002 16:56
> �: [EMAIL PROTECTED]
> Objet: RE: What does <map:pipeline> really do?
> 
> 
> John, Volker,
> 
> I was about to ask the same question.
> 
> > > Dear colleagues,
> > >
> > > does anybody know the difference between:
> > >
> > > <map:pipeline>
> > >   <map:match>...</map:match>
> > >   <map:match>...</map:match>
> > > </map:pipeline>
> > >
> > > and
> > >
> > > <map:pipeline>
> > >   <map:match>...</map:match>
> > > </map:pipeline>
> > >
> > > <map:pipeline>
> > >   <map:match>...</map:match>
> > > </map:pipeline>
> 
> > http://xml.apache.org/cocoon/faq/faq-sitemap.html#faq-3
> 
> I re-read the entire user doc package last night and came across that
> section but, with all due respect, that documentation doesn't 
> explain the
> benefits of one approach or the other.
> 
> Sure, one pipeline can be hidden but what other reasons exist 
> for separating
> into multiple pipelines? [Note: Volker's example didn't 
> specify an internal
> pipeline]
> 
> - for example, in the default sitemap (which is quite large), 
> why are there
> so many pipelines? Couldn't it be done with all the matchers 
> inside one
> pipeline?
> 
> - in there a performance difference?
> 
> - in cases where you aggregate XML parts using <map:aggregate> and the
> cocoon:/ protocol, are serializers skipped perhaps?
> 
> Thanks, Per.
> 
> 
> 
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