- From: Bob Schloss <rschloss@us.ibm.com>
- Date: Tue, 19 Mar 2002 17:28:35 -0500
- To: Mark Thornton <mthornton@optrak.co.uk>, xmlschema-dev@w3.org
They have to match the actual name of an element.
Note that you can use | to create an XPath in <xs:selector> or <xs:field>
which is the OR of XPaths, so this may allow you to do what you want, at
the cost of explicitly considering all the substitutions in every
identity-definition constraint you write.
Bob Schloss
IBM T. J. Watson Research Center
Mark Thornton <mthornton@optrak.co.uk>@w3.org on 03/19/2002 11:08:39 AM
Sent by: xmlschema-dev-request@w3.org
To: "'xmlschema-dev@w3.org'" <xmlschema-dev@w3.org>
cc:
Subject: identity constraints and substitution groups
Do the xpath expressions in an identity constraint have to match the actual
name of an element or is it sufficient to match a substitution group?
I.e. suppose
<xs:element name='column'/>
<xs:element name='specialColumn' substitutionGroup='column'/>
<xs:key name='kColumn'>
<xs:selector xpath='column'/>
<!-- etc -->
</xs:key>
Will the selector match 'specialColumn' elements as well as 'column'
elements?
Regards,
Mark Thornton
Received on Tuesday, 19 March 2002 17:29:50 UTC