Re: Abstract types in substitution groups

Ah - Got it.  Many thanks.

Pete.

Original Message From: "C. M. Sperberg-McQueen"
> On 8 Feb 2007, at 05:38 , Pete Cordell wrote:

>> So does the abstractness of the type become a property of the  
>> element?  i.e.
>>
>> <xs:element name='myElement' type='abstractType'/>
>>
>> is equivalent to:
>>
>>
>> <xs:element name='myElement' type='abstractType' abstract='true'/>
>> ?
>
.... 
>  Neither
> allows an element instance like
> 
>   <myElement>...</myElement>
> 
> but  if the schema defines 'concreteType' as a concrete type derived
> from abstractType, then the first declaration allows
> 
>   <myElement xsi:type="concreteType">...</myElement>
> 
> to appear in the document -- it is the type which is abstract, not
> the element.  The second declaration, by contrast, does not allow
> such an element instance.
--
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Pete Cordell
Tech-Know-Ware Ltd
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