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trevor patersonSubject: Help using xsd xs:redefine needed!
Author: trevor paterson
Date: 11 Jul 2007 04:36 AM
I can't work out how to do an <xs:redefine><xs:restriction> on a complex type that is itself an <xs:extension>

for example

I have in schema1.xsd an ObjectType and a MapType derived from it by extension

<xs:complexType name="ObjectType">
<xs:sequence minOccurs="0">
<xs:element name="EvidenceREF" type="ReferenceType" minOccurs="0" maxOccurs="unbounded"/>
<xs:element name="Comment" type="xs:string" minOccurs="0"/>
<xs:element name="RelationshipREF" type="ReferenceType" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attributeGroup ref="basic"/>
</xs:complexType>

<xs:attributeGroup name="basic">
<xs:attribute name="id" type="xs:ID" use="required"/>
<xs:attribute name="name" type="xs:string" use="optional"/>
</xs:attributeGroup>

<xs:complexType name="MapType">
<xs:complexContent>
<xs:extension base="ObjectType">
<xs:sequence minOccurs="0">
<xs:element name="MapOfREF" type="ReferenceType" minOccurs="0"/>
<xs:element name="MapSetREF" type="ReferenceType" minOccurs="0"/>
<xs:element name="UsefulName" type="xs:string" minOccurs="0"/>
<xs:element name="Sex" type="xs:string" minOccurs="0"/>
</xs:sequence>
<xs:attribute name="type" use="required">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value="LinkageMap"/>
<xs:enumeration value="RadiationHybridMap"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
</xs:extension>
</xs:complexContent>
</xs:complexType>

In schema2.xsd I want to redefine MapType to restrict the maxOccurs of some elements to 0 ( i.e. 'prohibit' them)

along the lines of

<xs:redefine schemaLocation="schema1.xsd">
<xs:complexType name="MapType">
<xs:complexContent>
<xs:restriction base="MapType">
<xs:extension base="ObjectType">
<xs:sequence minOccurs="0">
<xs:element name="MapOfREF" type="ReferenceType" minOccurs="0" maxOccurs="0"/>
<xs:element name="MapSetREF" type="ReferenceType" minOccurs="0" maxOccurs="0"/>
<xs:element name="UsefulName" type="xs:string" minOccurs="0"/>
<xs:element name="Sex" type="xs:string" minOccurs="0"/>
</xs:sequence>
<xs:attribute name="type" use="required">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value="LinkageMap"/>
<xs:enumeration value="RadiationHybridMap"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
</xs:extension>
</xs:restriction>
</xs:complexContent>
</xs:complexType>
</xs:redefine>

however i can't see how to specify the restricted content as the xs:extension element is not allowed inside the xs:restriction here...

any pointers would be gratefully received!


Trevor Paterson

Bioinformatics
Roslin Institute
Scotland EH25 9PS
   
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