RE: problems with xpath and schema validation

[Dirk Reinshagen_C <DR...@zaplet.com>]

I was just curious if anyone could confirm 
this issue with the namespace being
set to "" when validation is turned on.
Here's the test case:


<?xml version="1.0"?>
<customer xmlns:xsi='http://www.w3.org/1999/XMLSchema-instance'
    xsi:noNamespaceSchemaLocation='customer.xsd'
>
<firstname>john</firstname>
</customer>


<?xml version="1.0"?>
<schema>
   <element name="customer">
      <complexType>
         <sequence>                		                      
             <element name="firstname" type="string" maxOccurs="1"
minOccurs="1"/>
             <element name="lastname" type="string" maxOccurs="1"
minOccurs="0"/>
         </sequence>

      </complexType>
   </element>
</schema>

I've tried with Xerces 1.2.3 and Xerces 1.3.0 both with the same result.

-----Original Message-----
From: Gary L Peskin [mailto:garyp@firstech.com]
Sent: Thursday, March 08, 2001 8:23 PM
To: xalan-dev@xml.apache.org
Subject: Re: problems with xpath and schema validation


Dirk Reinshagen_C wrote:
> 
> This may be an FAQ or a known problem....
> 
> I have a very simple XML document that I'm encountering an
> issue when evaluating an XPath expression when parser validation
> is turned on.  I'm using Xalan 2.0 with Xerces 1.2.3 when
> executing the following XPath:
> 
> child::firstname/text()
> 
> I get null, but when I turn off parser validation it works as
> expected returning "john".  Any ideas/suggestions?
> 

I believe that this is the same problem that I reported over to the
Xerces-J list previously.  With schema validation on, the DOM node
<firstname> is given a namespaceURI of the empty string ("").  Xalan
expects a null namespaceURI indicating that there is no namespace for
<firstname>.

I've reported this over to the Xerces people but I haven't heard
anything back.  Perhaps I'll resend the message over there and try to
get a response.

Gary

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