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From David Crossley <cross...@indexgeo.com.au>
Subject Re: Saving pipeline output to a temp file...everything you wanted to know but were afraid to ask!
Date Tue, 11 Nov 2003 03:11:36 GMT
Sylvain Wallez wrote:
> Andrzej Jan Taramina wrote:
> >
> >Why forbid it?  I see no reason to elminate such a useful feature, unspecified or
otherwise.
> 
> There's been a discussion about this, and we agreed on the fact that he 
> semantics of <map:call function> and <map:call> continuation implied 
> that it _must_ redirect somewhere using sendPage, sendPageAndWait or 
> redirectTo.

I tried to find some relevant discussion. There were many useful
excursions, but here is one good lead:
http://marc.theaimsgroup.com/?l=xml-cocoon-dev&m=106780848625753

It looks like there was even a FIXME note in the code, so people
should definitely not rely on other behaviour.

--David

> The semantics you would like is the one of an action. I proposed to add 
> a "flowscript action" that would share function and global variable 
> scopes with the flowscript but have the appropriate contract of 
> returning a Map of values to the sitemap.
> 
> So the flowscript call semantics will be strengthened in the 2.1.4 to 
> avoid abuses of this unspecified behaviour. And the fact that you 
> already rely on this behaviour shows that we must correct things quickly.
> 
> If it was only me, we would forbid it ASAP for the 2.1.3 release. What 
> do others think?
> 
> Sylvain


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