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RE: Target namespace in WSDL

From: Jonathan Marsh <jmarsh@microsoft.com>
Date: Wed, 26 Jun 2002 12:20:49 -0700
Message-ID: <330564469BFEC046B84E591EB3D4D59C06A0820E@red-msg-08.redmond.corp.microsoft.com>
To: "Martin Gudgin" <mgudgin@microsoft.com>, <www-ws-desc@w3.org>

Given that relative URIs are undefined for use as XML namespace URIs,
should we mandate that this URI be absolute instead of merely non-zero
length?

> -----Original Message-----
> From: Martin Gudgin [mailto:mgudgin@microsoft.com]
> Sent: Tuesday, June 25, 2002 3:08 AM
> To: www-ws-desc@w3.org
> Subject: Target namespace in WSDL
> 
> 
> Both WSDL and XML Schema have the notion of a target namespace. In XML
> Schema this property can be absent, denoting constructs that are not
> affiliated with a particular namespace. This was necessary because XML
> Schema describes XML instances, and elements in an XML instance may be
> unqualified ( not affiliated with a namespace ).
> 
> The question I would like to pose is 'Does it makes sense to allow the
> target namespace property of WSDL components to be absent?'. And I
will
> argue that it does not. WSDL does not describe XML instances, it
> describes messages, portTypes, bindings and services. I think it makes
> sense to mandate that these contructs always be affiliated with a
> namespace.
> 
> To this end, I propose that we mandate the 'targetNamespace' AII on
the
> definitions EII. And that we modify the spec to say that the value of
> the AII must be a non-zero length URI.
> 
> Changes to spec
> 
> Section 3.1
> 
> Add a bullet between current bullets 2 and 3;
> 
> * A target namespace attribute information item amongst its
[attributes]
> as described below
> 
> 
> Section 3.1.1
> 
> Add a third bullet
> 
> * A type of anyURI in the http://www.w3.org/2001/XMLSchema namespace
> 
> Add prose
> 
> The value of the targetNamespace attribute information item MUST NOT
be
> the empty string.
> 
> 
> 
> Gudge
Received on Wednesday, 26 June 2002 15:21:21 GMT

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