Schema type info

Hi,
The doc "XQuery 1.0: An XML Query Language" states ...
    "A simple value consists of a value contained in the value space
    of one of the primitive datatypes described in [XML Schema],
    together with a reference to a schema component that describes its type."
    (http://www.w3.org/TR/xquery/#id-basics)

So what's needed is a way to access schema info from the
DOM parse tree (or from SAX events).
Yet I find no way of accessing schema-related info from
Xerces 1 or 2, or DOM level 1, 2, or 3.  Did I overlook something?

For example, DOM 2 Node class has a getNodeType() method, but
that only returns an indication of text vs element vs comment, etc.

Xerces Java 1.4.4 states:
    "No interface is provided for exposing the post-schema
    validation infoset , beyond that provided by DOM or SAX"
	(http://xml.apache.org/xerces-j/schema.html)

Xerces 2.0.0.b4 does NOT include the disclaimer of 1.4.4,
but still I find no extensions to access schema info.
Xerces Java 2.0.0.b4 supports DOM 2.0, but as far as I can tell,
DOM 2.0 has no provisions to access schema info.

Did I miss something here?  How do others deal with this issue?

Many thanks,

Steve

========================================
Steve Sullivan    sullivan@mathcom.com

   Mathcom Solutions, Inc.
    * Java, XML, and web oriented development.
    * Language development and translation.
    * Optimization, simulation, and mathematical modeling.

http://www.mathcom.com    303-494-7115
========================================

Received on Monday, 7 January 2002 13:32:58 UTC