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Re: How to validate an XSD File (validating a (not against a) Schema): msg#00017

Subject: Re: How to validate an XSD File (validating a (not against a) Schema)
Hi,

thank you all for these interesting thoughts!

Gareth (now Chair of of Apache Xerces Project Management Committee) stated
that Xerces does not claim to validate Schemas and that I should hence try
another
tool.
(http://blog.parthenoncomputing.com/xerces/archives/2005/04/can_i_validate.html)

Jeff had the idea of using the grammar preparsing mechanism to validate
schemas. I like the idea from the point of view that I want to benchmark
Xerces validation performance in a B2B scenario.
Therefore precaching is imho required anyway for increased performance in
message validation.

The benchmark however relies on the XML Schema test collection available
here (http://www.w3.org/2001/05/xmlschema-test-collection.html). In the
past, xerces (2.0.0_beta4) was only tested in test cases that involved a
schema and an instance. 

Please share with me your thoughts on:
1. ) Did anybody try to run the W3C schema-only test cases on Xerces (using
the precaching framework)?
2. ) Is the precaching framework suitable for running the above benchmark?
3. ) Will Schema validation be added to Xerces (the last question is
interesting for the "outlook"-part of my paper since I want to compare
Xerces with an OpenSource Tool developed by my company).

Thank you Gareth, Jeff and Bob for your previous answers.

Kind Regards,

Gregor

@Gareth: This is how I came up with the idea of using the Schema for Schema
with Xerces (it was silly, but I gave it a try :-)
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