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Re: Attributes in XML

• To: Stamatis Karbounarakis <karvoun@i...>
• Subject: Re: Attributes in XML
• From: "Chiusano Joseph" <chiusano_joseph@b...>
• Date: Tue, 01 Jul 2003 07:12:37 -0400
• Cc: xml-dev@l...
• Organization: BAH
• References: <Pine.GSO.4.33.0307011240380.14898-100000@a...>

Stamatis,

I recommend you check out the "xsi:type" attribute of W3C Schema [1],
which serves such a purpose in an XML instance document.

Kind Regards,
Joe Chiusano
Booz | Allen | Hamilton

[1] http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/#xsi_type

Stamatis Karbounarakis wrote:
> 
> Hello. I want(if possible) to create attributes that will take as a value
> in the xml file an actual xml schema datatype. Check out this xml
> instance:
> 
> <param name="lala" type="xs:string">stamatis</param>
> <param name="lala2" type="xs:int">0</param>
> 
> Not only the attribute "type" must be of xml schema type but the element's
> value must be of the same type so for the xml file to be (semantically)
> correct. Is this feasible?The only thoughts I am heaving is to declare it
> somehow like this:
> xsd file
> --------
> 
> <xs:simpleType name="XSDTypes">
>         <xs:union memberTypes="xs:float xs:int xs:string"/>
> </xs:simpleType>
> 
> <xs:attributeGroup name="paramAttributes">
>         <xs:attribute name="name" type="xs:string" use="required"/>
>         <xs:attribute name="type" type="XSDTypes" use="required"/>
> </xs:attributeGroup>
> 
> <xs:element name="param">
>         <xs:complexType>
>                 <xs:simpleContent>
>                         <xs:extension base="XSDTypes">
>                                 <xs:attributeGroup ref="paramAttributes"/>
>                         </xs:extension>
>                 </xs:simpleContent>
>         </xs:complexType>
> </xs:element>
> 
> Thanx!
> Stamatis
> 
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org:Booz | Allen | Hamilton;IT Digital Strategies Team
adr:;;8283 Greensboro Drive;McLean;VA;22012;
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fn:Joseph M. Chiusano
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• References:
  • Attributes in XML
    • From: Stamatis Karbounarakis <karvoun@i...>

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