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RE: Inheritance of anyAttribute in XML Schema

• To: "'Soren Kuula'" <dongfang@d...>,"'xml-dev@lists. xml. org'" <xml-dev@l...>
• Subject: RE: Inheritance of anyAttribute in XML Schema
• From: "Michael Kay" <mike@s...>
• Date: Mon, 12 Dec 2005 19:32:45 -0000
• In-reply-to: <439DCF83.7060009@d...>
• Thread-index: AcX/SmEAPqWZSNlZR2GLn6IluYwTZAAB7NXA

Yes. When you derive a type by restriction:

- attributes are inherited by default
- elements are dropped by default
- attribute wildcards are dropped by default
- element wildcards are dropped by default

This is one spec where your eyes will still twitch and your head still go
buzzZZZ even when you read it for the tenth time. Except that you will no
longer be surprised by surprises.

Michael Kay
http://www.saxonica.com/
 

> -----Original Message-----
> From: Soren Kuula [mailto:dongfang@d...] 
> Sent: 12 December 2005 19:29
> To: xml-dev@lists. xml. org
> Subject:  Inheritance of anyAttribute in XML Schema
> 
> Hi,
> 
> I'm sorry, I know I COULD have researched this a little bit better 
> myself first. But the XSD spec made my eyes twitch and my head go 
> buzzzZZZzzz....
> 
> I think I have seen somewhere that when a complex type is 
> derived from 
> another, all attributes are inherited automatically (unless 
> killed of by 
> a redeclaration with use="prohibited") (in both extension and 
> restriction) -- correct me if wrong.
> 
> How is that then, with the attribute wildcard, anyAttribute? 
> I suspect 
> it is not always inherited, as that would make it really hard 
> to shake 
> off anyAttribute from stuff derived from anyType, that is, 
> from anything 
> complex at all. IF the ur-type definition really uses the 
> anyAttribute 
> formally.
> 
> Does anyone know if there's a simple version of how attribute 
> wildcards 
> are (not?) inherited?
> 
> Soren
> 
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• References:
  • Inheritance of anyAttribute in XML Schema
    • From: Soren Kuula <dongfang@d...>

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