- From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
- Date: 10 Mar 2000 09:50:15 +0000
- To: Michael Anderson <michael@research.canon.com.au>
- Cc: xml <xml-dev@xml.org>, www-xml-schema-comments@w3.org
Michael Anderson <michael@research.canon.com.au> writes:
> Does the use of xsi:type in an instance allow the derived type's
> attributes to appear in the markup, or is only the derived content model
> allowed? For example.
>
> In the XML Schema Document
> <element name="A" type="AType" />
>
> <complexType name="AType">
> <attribute name="attrA" type = "NCName" />
> </complexType>
>
> <complexType name="BType" base="AType" derivedBy="extension">
> <attribute name="attrB" type = "NCName" />
> </complexType>
>
> In the XML Instance Document
> <A xsi:type="BType" attrA="someName" attrB="someOtherName" />
>
> Is this okay? Or is only attrA allowed?
It's OK. When xsi:type is provided and its value is allowed, the type
definition it resolves to is used to schema-validate the whole element
information item, that is, attributes and content.
ht
--
Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
W3C Fellow 1999--2001, part-time member of W3C Team
2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
Fax: (44) 131 650-4587, e-mail: ht@cogsci.ed.ac.uk
URL: http://www.ltg.ed.ac.uk/~ht/
Received on Friday, 10 March 2000 04:50:20 UTC