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From Sylvain Wallez <>
Subject Re: Question was: Re: [RT] reconsidering pipeline semantics
Date Thu, 04 Jul 2002 10:06:39 GMT
Diana Shannon wrote:

> Can someone help fill in the holes below?
> On Wednesday, July 3, 2002, at 10:10  AM, Jason Foster wrote:
>> We should really get this in a FAQ somewhere!
>>>> What's the difference between having two pipelines with one matcher
>>>> each, and one pipeline with two matchers?
>>> If there is no other difference in pipeline declarations, then none.
>>> Pipelines can differ by:
>>>     - visibility: internal (not accessible for external requests) or
>>> normal
>>>     - error handling: using different <handle-errors>s.
>>>     - cachability (since 2.1): some requests can use cached responses
>>> from caching pipeline, while the others should not be cached, so you 
>>> should
>>> use non-caching pipeline implementation
>>>     - logical grouping: you can group logically related parts into
>>> separate pipelines
> Why? For ease of administrative/management concerns?

Yes, and readability.

>>> Pipelines can also have an 'id', but I don't know how it's used, so 
>>> you can
>>> have different 'id's for your pipelines.
> Any information about the intended purpose of id? 

The id is used by the "sitebuilder" sitemap editor in 
scratchpad/webapps. This editor uses "id" attributes on all sitemap 
elements (not only pipelines) to identify them during the modification 

>>> Maybe I've forgot something, but this should be enough for 
>>> understanding.
> Did he forget anything?

Don't think so. But I may have forgot something also ;)


Sylvain Wallez
  Anyware Technologies                  Apache Cocoon 

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