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Re: Restricting the behaviour of an imported complexType

From: Martin Honnen <mahotrash@-----.-->
To: NULL
Date: 3/2/2006 2:09:00 PM


steve_marjoribanks wrote:

> I want to import a complex type into my schema which contains a complex
> type which includes a choice as shown below:
> 
>         <choice minOccurs="2" maxOccurs="unbounded">
> 	        <element ref="gml:pos"/>
> 	        <element ref="gml:pointProperty"/>
> 	        <element ref="gml:pointRep">
>         </choice>
> 
> Howver, in my schema I only want to allow the "gml:pos" element to
> occur, not the others. Is it possible to restrict the allowable
> instances of the imported complexType within my schema? I know I could
> just reference the gml:pos element directly but I was wondering if it
> is possible to import the complex type and then restrict the values?

Generally you can extend and restrict existing types, see
   <http://www.w3.org/TR/xmlschema-0/#DerivByRestrict>

-- 

	Martin Honnen
	http://JavaScript.FAQTs.com/

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