- From: Henry S. Thompson <ht@cogsci.ed.ac.uk>
- Date: 20 Jun 2001 14:59:21 +0100
- To: "Uwe Zeise" <uwezeise@yahoo.de>
- Cc: <www-xml-schema-comments@w3.org>
"Uwe Zeise" <uwezeise@yahoo.de> writes:
> Hi folks,
>
> How can I achieve via "unique" that the element "id" is unique within the whole document ?
>
> <root>
>
> <postition>
> <id>100</id>
> </postition>
> <postion>
> <id>101</id>
> </postion>
>
> <anotherpostion>
> <dummy>
> <id>102</id>
> </dummy>
> </anotherposition>
>
> </root>
>
> XML-Schema:
>
> <element name="root">
<snip/>
> <unique name="idMustBeUnique">
> <selector xpath=".//id"/> <------------- Is that one correct ?
> <field xpath="."/>
> </unique>
> </element>
Looks right to me.
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 Wednesday, 20 June 2001 09:59:20 UTC