Distributed DOM implementations

Pavel Velikhov pvelikho at cs.ucsd.edu
Thu Jan 28 00:45:00 GMT 1999

Dave Winer wrote:
> That's a very interesting idea! If we (UserLand) did this, it would not be
> free, but it could be very high level and quite powerful. Flip a switch and
> all of a sudden your code is working against data on the server. Can you
> say what kind of application you have in mind for this? Dave

 I have build a prototype of an XML database system, but I have found
out that
the XML parser is the chief performance bottleneck (DOM is my "storage
I.e. to query a document I have to parse all of it, even though the
query may
concern only a tiny fragment of it. Instead, if the document is
pre-parsed and
stored in some efficient representation (either main memory tree or some
representation on disk) and is available via DOM commands, I would save
a lot of

> At 02:57 PM 1/27/99 -0800, you wrote:
> >Hi,
> >
> >       I would like to find out if there are any known distributed
> >implementations of DOM (and free). What I mean by this is an ability to
> >access remote XML documents through a DOM interface but not by
> >downloading and parsing them locally. Instead I need a parser or
> >whatever (e.g. OODB wrapper) on the other end to give me result of the
> >DOM commands only.
> >
> >Thank you,
> >Pavel Velikhov
> >UCSD Database Lab
> >pvelikho at cs.ucsd.edu

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