- To: "CHIUSANO, Joseph" <JCHIUSANO@l...>,"Ronald Bourret" <rpbourret@r...>,<xml-dev@l...>
- Subject: RE: Who can implement W3C XML Schema ?
- From: "Dare Obasanjo" <dareo@m...>
- Date: Fri, 22 Mar 2002 13:39:41 -0800
- Thread-index: AcHR6a9Dh0jLtyO0R46ZxUBVuyGCVAAABhUg
- Thread-topic: Who can implement W3C XML Schema ?
Title: Message
Exactly. xs:restriction with no children is effectively
a renaming mechanism.
--
This posting is provided "AS IS" with no warranties, and confers
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You assume all risk for your use. © 2002 Microsoft Corporation.
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<Snip>
what is the point of
allowing an xsd:restriction element with no children?
</Snip>
If I read your question correctly (apologies if I'm not),
here's a case where this *might* be useful:
Suppose I've defined a simple type of string length 5 as
follows:
<xsd:simpleType
name = "StringLength5Type">
<xsd:restriction base = "xsd:string">
<xsd:maxLength value = "5" fixed = "true"/>
</xsd:restriction>
</xsd:simpleType>
I can reuse this definition in other simple type definitions -
for instance, to declare another simple type that is also string length
5:
<xsd:simpleType name = "SomeNewCodeType">
<xsd:restriction base =
"StringLength5Type"/>
</xsd:simpleType>
Regards,
Joe Chiusano
LMI
>
**************************************************************************
> Joseph M. Chiusano
> Logistics Management Institute
> 2000 Corporate Ridge
> McLean, VA 22102
> Email: jchiusano@l...
> Tel: 571.633.7722
>
**************************************************************************
>
-----Original Message-----
From:
Ronald Bourret [mailto:rpbourret@r...]
Sent: Friday, March 22, 2002 4:21 PM
To: xml-dev@l...
Subject: Re:
Who can implement W3C XML Schema ?
OK. Now that I finally understand why this is invalid, what is
the point
of allowing an xsd:restriction element with
no children? Is it
specifically to allow me to
restrict content down to emptiness and yet
still get
the OO advantages (?) of using a restriction?
-- Ron
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