Pete, my memory is there are 2 or 3 ways to do "inheritance" in XML
schemas. I recommend you buy a book on this and read it :)
Sent from my iPhone
On Mar 19, 2009, at 7:40 AM, Pete Muir <pmuir(a)redhat.com> wrote:
On 18 Mar 2009, at 04:38, Jason T. Greene wrote:
> 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?
For example in package com.acme
class Foo {
}
could be described by XML:
<acme:Foo>
</acme:Foo>
Now, I want to add the binding com.acme.sales.Bar to the Foo class:
<acme:Foo>
<sales:Bar />
</acme:Foo>
In other words, any binding type can be inserted as a child element
to a class. So, we need a way to identify this as a point that any
binding type can be inserted.
Does this explain it better?
>
>
> --
> Jason T. Greene
> JBoss, a division of Red Hat
--
Pete Muir
http://www.seamframework.org
http://in.relation.to/Bloggers/Pete
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