in Schema Dynamic value for maxLength - help

[Ayyappan Selvaraj]

Friends,

In a XSD, I have a huge set of complex elements where in I use 2 defined complex types. The defined complex types differ just by the value for the maxLength attribute. So I require that I can have one complex type instead of two, with a variable defined and value supplied to it when being referred.

The XSD code is:

  
<xs:complexType name="desc_30">
<xs:sequence>
<xs:element name="CODE">
<xs:simpleType>
<xs:restriction base="xs:string"><xs:maxLength value="3"/></xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="DESCR">
<xs:simpleType>
<xs:restriction base="xs:string"><xs:maxLength value="30"/></xs:restriction>
</xs:simpleType>
</xs:element>
</xs:sequence>
</xs:complexType> 
 

<xs:element name="ADDRESS_TYPE" type="desc_30"/>
<xs:element name="AFFILIATION_CODE" type="desc_30"/>
 
<xs:complexType name="desc_60">
<xs:sequence>
<xs:element name="CODE">
<xs:simpleType>
<xs:restriction base="xs:string"><xs:maxLength value="3"/></xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="DESCR">
<xs:simpleType>
<xs:restriction base="xs:string"><xs:maxLength value="60"/></xs:restriction>
</xs:simpleType>
</xs:element>
</xs:sequence>
</xs:complexType> 
 

<xs:element name="ASSOC_ROLE_SCOPE_CODE" type="desc_60"/>

And I want something like this::

  
 
<xs:complexType name="desc_dynamic">
<xs:sequence>
<xs:element name="CODE">
<xs:simpleType>
<xs:restriction base="xs:string"><xs:maxLength value="3"/></xs:restriction>
</xs:simpleType>
</xs:element>
<xs:element name="DESCR">
<xs:simpleType>
<xs:restriction base="xs:string"><xs:maxLength value="$maxVar"/></xs:restriction>
</xs:simpleType>
</xs:element>
</xs:sequence>
</xs:complexType> 
 
<xs:element name="ADDRESS_TYPE" type="desc_dynamic" &maxVar="30"/>
<xs:element name="AFFILIATION_CODE" type="desc_dynamic" &maxVar="30"/>
<xs:element name="ASSOC_ROLE_SCOPE_CODE" type="desc_dynamic" &maxVar="60"/>
 

Thanks in advance