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Re: [NEW ISSUE]: 4196 Clarify namespace restrictions (Framework and Primer)

From: Felix Sasaki <fsasaki@w3.org>
Date: Fri, 12 Jan 2007 23:45:41 +0900
Message-ID: <45A79F15.2060602@w3.org>
To: "Monica J. Martin" <Monica.Martin@Sun.COM>
Cc: "public-ws-policy@w3.org" <public-ws-policy@w3.org>

Hello Monica,

Just a comment on your reference to the existing schema: You reffered to
a previous reversion. The current version is always available at

http://www.w3.org/2002/ws/policy/ns/ws-policy

The difference is the deletion of the explicit reference to wsu:id.

Felix

Monica J. Martin wrote:
> 
> See: http://www.w3.org/Bugs/Public/show_bug.cgi?id=4196
> 
> Title:  Clarify namespace restrictions
> Target:  Framework and Primer [reference 1]
> 
> Description and Justification:
> The Framework specification specifies treatment of unknown extensibility
> elements and attributes. In reviewing this and the other WG documents
> for a related issue on cleanup items on extensibility and consistency
> with the XML schema, ambiguous or missing statements were identified for
> the Primer and the Framework related to namespaces. The Primer specifies
> namespace restrictions rather than the Framework document.
> 
> Consistency and clarity between all documents with the requirements
> around extensibility for namespaces are suggested.
> 
> [for reference only]
> Reference this snippet from the existing schema. [reference 1]  Note
> this snippet is only included for information and reference only.  This
> snippet is NOT part of any proposed change for the Framework.
> 
> ...<xs:element name="Policy" >
> <xs:complexType>
> <xs:complexContent>
>  <xs:extension base="tns:OperatorContentType" >
>    <xs:attribute name="Name" type="xs:anyURI" />
>    <xs:attribute ref="wsu:Id" />
>    <xs:anyAttribute namespace="##any" processContents="lax" />
>  </xs:extension>
> </xs:complexContent>
> </xs:complexType>
> </xs:element>
> <xs:element name="All" type="tns:OperatorContentType" />
> <xs:element name="ExactlyOne" type="tns:OperatorContentType" />
> <xs:complexType name="OperatorContentType" >
> <xs:sequence>
> <xs:choice minOccurs="0" maxOccurs="unbounded" >
>  <xs:element ref="tns:Policy" />
>  <xs:element ref="tns:All" />
>  <xs:element ref="tns:ExactlyOne" />
>  <xs:element ref="tns:PolicyReference" />
>  <xs:any namespace="##other" processContents="lax" />
> </xs:choice>
> </xs:sequence>
> </xs:complexType>...
> 
> See also existing text in the Primer, Section 3.8, Extensibility and
> Versioning: [reference 2]
> 
>    "Web Services Policy language is an extensible language by design.
>    The |Policy|, |ExactlyOne|, |All| and |PolicyReference| elements are
>    extensible. The |Policy|, |ExactlyOne| and |All| elements allow
>    child element and attribute extensibility. Extensions must not use
>    the policy language XML namespace name. A consuming processor
>    processes known attributes and elements, ignores unknown attributes
>    and treats unknown elements as policy assertions.
> 
>    The |PolicyReference| element allows element and attribute
>    extensibility."
> 
> See also in Section 2.3, Framework, on the policy namespace:
> 
>    "All information items defined by this specification are identified
>    by the XML namespace URI [XML Namespaces] <link>
>    |http://www.w3.org/@@@@/@@/ws-policy|."
> 
> [for reference only]
> 
> Proposal:
> Clarify statements in the Primer [2] and add such information to the
> Framework document [2] around namespaces related to extensions. The
> Framework discusses arbitrary namespaces but not specific restrictions,
> while the cited statements in the Primer need to be updated.
> 
> PROPOSED CHANGE: For Framework, Section 2.2, Extensibility:
> 
> [start proposed change - add at the end of the existing paragraph]
> Extensions to Child Element Information Items added to Policy operators
> wsp:Policy, wsp:All and wsp:ExactlyOne MUST NOT use the policy language
> XML namespace name.
> [end proposed change]
> 
> PROPOSED CHANGE: For Primer, Section 3.8, Extensibility and Versioning
> Change from:
> 
>    "Web Services Policy language is an extensible language by design.
>    The |Policy|, |ExactlyOne|, |All| and |PolicyReference| elements are
>    extensible. The |Policy|, |ExactlyOne| and |All| elements allow
>    child element and attribute extensibility. Extensions must not use
>    the policy language XML namespace name. A consuming processor
>    processes known attributes and elements, ignores unknown attributes
>    and treats unknown elements as policy assertions.
> 
>    The |PolicyReference| element allows element and attribute
>    extensibility."
> 
> Change to:
> 
>    "Web Services Policy language is an extensible language by design.
>    The |Policy|, |ExactlyOne|, |All| and |PolicyReference| elements are
>    extensible. The |Policy|, |ExactlyOne| and |All| elements allow
>    child element and attribute extensibility. Child element extensions
>    to these elements must not use the policy language XML namespace
>    name. A consuming processor processes known attributes and elements,
>    ignores unknown attributes and treats unknown elements as policy
>    assertions.
> 
>    The |PolicyReference| element allows element and attribute
>    extensibility."
> 
> Note: The extensibility question irrespective of namespaces is handled
> in a separate issue.
> 
> References
> [reference 1]
> http://dev.w3.org/cvsweb/~checkout~/2006/ws/policy/ws-policy.xsd?rev=1.6&content-type=text/plain
> (schema)
> 
> [reference 2]
> Editor's copies and CVS area 10 January 2007:
> http://www.w3.org/2002/ws/policy
> See also Section 5, Lifecyle of Assertions in Guidelines
> http://dev.w3.org/cvsweb/~checkout~/2006/ws/policy/ws-policy-framework.html?content-type=text/html;%20charset=utf-8
> (Framework)
> http://dev.w3.org/cvsweb/~checkout~/2006/ws/policy/ws-policy-primer.html?content-type=text/html;%20charset=utf-8
> (Primer)
> 
> 
> 
> 
> 
> 
> 
> 
> 
Received on Friday, 12 January 2007 14:45:55 GMT

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