- From: George Cristian Bina <george@oxygenxml.com>
- Date: Wed, 10 Oct 2007 11:09:04 +0300
- To: wayne liu <waynix@gmail.com>
- Cc: xmlschema-dev@w3.org
Hi Waynix, You cannot do that in XML Schema (at least not in the current version, 1.0). You need to define a more relaxed schema, that is make both attributes optional and check the constraint at application level. One alternative is to add a Schematron embedded rule to check that if one is present you have also the other one and perform both XML Schema validation and a validation against the Schematron embedded rules. FWIW this is a case that is very easily handled in Relax NG. Best Regards, George --------------------------------------------------------------------- George Cristian Bina - http://aboutxml.blogspot.com/ <oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger http://www.oxygenxml.com wayne liu wrote: > Hello All; > > I have an element that takes two attributes as a coupled group, meaning > either none or all of them have to be present. > For example, if a guys wares glass, it's required that the type is > specified. > <SomeGuy wears-glass="yes" glass-type="contact-lense"> > Info about this guy > </SomeGuy> > > How do I enforce this in XSD ?. I tried attributeGroup and it's not it. > > My apology if this is not the right place, in which case would someone > please give a pointer. > > Thanks a lot. > > Waynix. >
Received on Wednesday, 10 October 2007 08:11:20 UTC