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RE: A proposal:xsl:result-document asynchronous attrib

Subject: RE: A proposal:xsl:result-document asynchronous attribute
From: David.Pawson@xxxxxxxxxxx
Date: Tue, 11 Mar 2003 08:38:26 -0000
xsl result document fop
Kurt wrote:
> I'd second Francis's note on the idempotency issue. Consider 
> the canonical 
> HTTP GET based web service - the stock market ticker. Such a 
> service will be 
> returning a different result set at any given moment in time, 
> to an extent 
> that you could effectively argue that time itself becomes a 
> parameter in any 
> such service, regardless of the specific implementation. 

A silly extension to this would be to enable a variable 
to be incremented. 
I'd speak against this, and for keeping the side effect free nature
of XSLT.

> An XSLT processor does not act in isolation;

I agree. Equally I'd like to see other W3C recs built up on
clean implementations  of other recs. Not to screw up rec 1 simply
for the convenience of rec number 2. 



> I think it is worth it.

I think its a route to spoiling a good tool.


> I'm falling into ranting mode, so I'll stop now, save for 
> this one comment - 
> XSLT is perhaps the first XML based language for manipulating 
> XML, and for 
> all the hype of vendors, it is still one of the best. 

Wholly agree. I firmly believe that the idea of limiting 
its functionality in rev 1.0 was right. 2.0 is now building
on that. I won't go into the mess being created by the query mixup.
I find that another case for seperation.



> However, the whole web 
> services infrastructure did not exist per se when XSLT 1.0 
> was finalized. 
> XSLT is a superb mechanism for state transition devices, for 
> generalized XML 
> transformations, and for mediating XML streams - all 
> important aspects of a 
> web services architecture.


If an implementor wants to take a clean XSLT implementation,
and build on it for the above purposes then fine. Don't mess up
a good tool for other purposes.

My 2 Euro's.


regards DaveP.



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