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Re: complex type definition

From: Lingzhi Zhang <lzhang@cse.ogi.edu>
Date: Mon, 22 Sep 2003 11:01:24 -0700 (PDT)
To: dev xmlschema <xmlschema-dev@w3.org>
Message-ID: <Pine.SOL.4.21.0309221050550.1440-100000@state.cse.ogi.edu>


Thanks for your response. I wish to define a type X which just include
type definition of Y and Z, then declare a element which has type X.

I understand what you meant. I think it is probably impossible the way I
was planning to do. However, using group could do but in the other way.



On Mon, 22 Sep 2003, Jeni Tennison wrote:

> Hi Stephen,
> > I am wondering how to define this in XML schema.
> >
> > define type X { type Y, type Z }
> >
> > That is type X is a combination of complex type Y and complex type
> > Z.
> This probably isn't possible, at least not in the way you describe it.
> In XML Schema, each complex type is derived from a single base complex
> type, either restricting it or extending it (by adding extra elements
> and attributes).
> It might be that you can get the "combination" that you're after by
> using model groups rather than (or in combination with) complex types
> when you want to achieve this kind of modularity. Perhaps you can
> provide an example of how you want the types to combine, and that
> would help us help you to find the best way to achieve it.
> Cheers,
> Jeni
> ---
> Jeni Tennison
> http://www.jenitennison.com/
Received on Monday, 22 September 2003 14:01:25 UTC

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