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RE: ISSUE-34: multiple schemas for a single namespace

From: <paul.downey@bt.com>
Date: Fri, 28 Apr 2006 15:09:17 +0100
Message-ID: <2A7793353757DB4392DF4DFBBC95225504BFE94A@I2KM11-UKBR.domain1.systemhost.net>
To: <gcowe@origoservices.com>, <public-xsd-databinding@w3.org>

Thanks for the example George,

here, AIUI, there are two schemas for the same
targetNamespace, collected in the WSDL types section.

WSDL 1.1 says little on this subject, beyond:

There can be multiple schemas associated with a particular 
namespace, and it is up to a processor of XML to determine 
which one to use in a particular processing context. 
The WSDL specification provides the processing context here 
via the <import> mechanism, which is based on the XML 
schemas grammar for the similar concept.

However, this scenario is explicitly allowed in WSDL 2.0:

A WSDL 2.0 document MAY inline two or more schemas 
from the same targetNamespace . For example, two or 
more inlined schemas may have the same targetNamespace 
provided that they do not define the same elements or 
types. A WSDL 2.0 document MUST NOT define the same 
element or type in more than one inlined schema.† 
Note that it is the responsibility of the underlying 
XML Schema processor to sort out a coherent set of 
schema components.

I think this is unlikely to be a good fit for the 
Basic patterns document given it is (a) know not
to work with many databinding tools and (b) specific
to WSDL 1.1.

So I'd anticipate seeing proposals to include this
pattern in our "advanced" document, even though
this is more of a WSDL, than a Schema pattern.

I would be inclined to raise this to the WS-I Basic
Profile WG, something I'd be happy to do on your behalf.


-----Original Message-----
From: public-xsd-databinding-request@w3.org on behalf of George Cowe
Sent: Fri 4/28/2006 11:36 AM
To: public-xsd-databinding@w3.org
Subject: Re: ISSUE-34: multiple schemas for a single namespace
Attached is a zip (rename from zap) file with a small example demonstrating the issue of using one namespace across multiple schemas.


Try generating some code from the WSDL.



Received on Friday, 28 April 2006 14:09:46 UTC

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