[webbeans-dev] Typing of XML elements

[Jason T. Greene]

Pete Muir wrote:
> Hi Norman, and other XML experts,
> 
> One of the tasks for Web Beans is to build an XSD. There is an XSD per 
> package, and an root-element per class. Classes can have annotations, 
> such as bindings, which makes them into a bean. This means, for example, 
> that a child element of the class element could be a binding type 
> annotation (it's XML element equivalent), however placing, for example, 
> an annotation which is not, for example, a binding type would be an error.
> 
> Therefore, we can increase the "type safety" of the XSD by restricting 
> the category of child elements that can be placed in the class element. 
> However, I don't know how to do this in XSD - any pointers?
> 

I'm not sure I understand what you want, however it sounds like a 
substitution group. Can you give an example?

-- 
Jason T. Greene
JBoss, a division of Red Hat