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XQuery is a good read-only data model for XML but a bad one as a
read-write model. I wrote about all the frustrations of trying to build
programming models around the XQuery data model at
Of course, I wouldn't expect people who've only considered the XQuery
data model for read only operations such as members of the working group
like yourself and Dana to have come across these issues.
PITHY WORDS OF WISDOM
Anyone who doesn't think there is two sides to an argument is probably
involved in one.
This posting is provided "AS IS" with no warranties, and confers no
> -----Original Message-----
> From: Jonathan Robie [mailto:email@example.com]
> Sent: Thursday, December 02, 2004 12:20 PM
> To: Daniela Florescu
> Cc: Elliotte Harold; Michael Champion; firstname.lastname@example.org
> Subject: Re: [xml-dev] XML-aware programming language?
> I agree - the XPath/XQuery/XSLT is a good data model, and I
> would pick the same one.
> Daniela Florescu wrote:
> >> Tim's point was that you couldn't have a native XML programming
> >> language because there is no data model for XML. Fact is,
> there are
> >> many. Pick one.
> > I picked mine Jonathan. The XQuery and XSLT Data Model.
> > It's the only one among all possibilities that satisfies ALL my
> > requirements:
> > 1) be an abstract data model, not an API that implies a
> certain data
> > access pattern
> > 2) cover the entire Infoset
> > 3) cover schema validated as well as non schema validated data
> > 4) be usable
> > 5) have at least one data processing language based on it
> > (there are actually three: XPath 2.0, XQuery and XSLT 2.0)
> > 6) show evidence that it can be implemented
> > 7) co-exist peacefully with the other XML data models
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