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[xml-dev] IDs without DTD/Schema , Is there a way ?

Greetings, we have a little problem with ID, we need to identify the IDs
in an XML Document but not always we got a DTD or a Schema to work with,
I include the original question of a friend of mine (little more
technical and platform dependent) 
// Fabio Dianda             dianda@sec.di.unipi.it
// Free Speech             w3c patent policy SUCKS					 
// Free advertising	       	      www.ntop.org 

---------- Forwarded message ----------
Date: Wed, 24 Oct 2001 18:19:03 +0200
From: Mauro Arcolini <arcolini@sec.di.unipi.it>
To: BigBoss <dianda@sec.di.unipi.it> 
Subject: Xerces-J

I have a problem with xml Document retrieve function using Xerces-J 
dom package. After parsing without validating, i must to retrieve an
element with a specific attribute(of type ID) value. It don't seems a
good idea to traverse all attributes list of each element in document
object to retrieve the element. Is exists an other way in DOM? Maybe in
Sax model? 

Mauro Arcolini
Universita' degli studi di Pisa Italy

--> member of GAPXSE, a students group from: 
    Nicchia sicurezza reti di computer 2000/2001
    Dipartimento di Informatica
--> current project: Java Api for XMLDSIG               
--> mail: arcolini@sec.di.unipi.it