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[Bug 5053] S4S: Issues on the complex type definition "altType"

From: <bugzilla@wiggum.w3.org>
Date: Sat, 15 Sep 2007 11:54:52 +0000
CC:
To: www-xml-schema-comments@w3.org
Message-Id: <E1IWWEe-0000wI-2i@wiggum.w3.org>

http://www.w3.org/Bugs/Public/show_bug.cgi?id=5053

           Summary: S4S: Issues on the complex type definition "altType"
           Product: XML Schema
           Version: 1.1 only
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Structures: XSD Part 1
        AssignedTo: cmsmcq@w3.org
        ReportedBy: pmarinel@cs.unibo.it
         QAContact: www-xml-schema-comments@w3.org


Within the Schema for Schema documents [1], type “altType” is defined as
follows: 

<xs:complexType name="altType">
    ...
    <xs:complexContent>
      <xs:extension base="xs:annotated">
        <xs:choice minOccurs="0">
          <xs:element ref="xs:simpleType"/>
          <xs:element ref="xs:complexType"/>
        </xs:choice>
        <xs:attribute name="test" type="string" use="optional"/>
        <xs:attribute name="type" type="QName" use="optional"/>
        <xs:attribute name="xpathDefaultNamespace"
type="xs:xpathDefaultNamespace"/>
        <xs:attribute name="id" type="xs:ID"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>

The content model references the global element declarations “simpleType” and
“complexType”. Such global declarations are used to validate the simple and
complex types defined at the top-level of a schema document. So, both of them
requires the attribute “name”. On the other hand, I think that unnamed type
definitions only should be allowed within an <alternative> element. 

Moreover, type “altType” explicitly declares an attribute “id” of type “ID”.
But such an attribute is also inherited from the base type “annotated”. 

See also bug 5052.


References
[1]:
http://www.w3.org/TR/2007/WD-xmlschema11-1-20070830/#normative-schemaSchema
Received on Saturday, 15 September 2007 11:55:04 UTC

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