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RE : RE : Text or tags choice with XSD

• To: 'Chiusano Joseph' <chiusano_joseph@b...>
• Subject: RE : RE : Text or tags choice with XSD
• From: GARNIER Pierre <pgarnier@m...>
• Date: Tue, 9 Sep 2003 15:57:01 +0100
• Cc: "'xml-dev@l...'" <xml-dev@l...>

I would really prefer do not have to add this constraint to the instance
document. It creates a strong dependency between the instance and the
schema.
The one who create a instance have to know the names of the types. It is
boring.

> 
> Oops - I forgot about that. Then you should probably use abstract types
(see section 4.7 Abstract Elements and Types of the Schema Primer) and use
xsi:type in your instance document to define which type is being used at
runtime.
> 
> Kind Regards,
> Joe Chiusano
> Booz | Allen | Hamilton
> 
> GARNIER Pierre wrote:
> > 
> > No, union are not usable within complex types.
> > 
> > > Pierre,
> > >
> > > This can be done with Union types [1].
> > >
> > > Kind Regards,
> > > Joe Chiusano
> > > Booz | Allen | Hamilton
> > >
> > > [1] 
> > > http://www.w3.org/TR/2001/REC-xmlschema-0-20010502/primer.html#Union
> > > Dt
> > >
> > > GARNIER Pierre wrote:
> > > >
> > > > Hi,
> > > >
> > > > Here are two <time> elements differing only in there content :
> > > >
> > > > 1)
> > > > <doc>
> > > >   <time>14:09<time>
> > > > </doc>
> > > >
> > > > 2)
> > > > <doc>
> > > >   <time><hour>14</hour><min>09</min></time>
> > > > </doc>
> > > >
> > > > In an XSD schema, how to indicate that the <time> element can 
> > > > contain text and only text or <hour> tag followed by <min> tag?
> > > >
> > > > I tried with a choice group containing two <time> elements with 
> > > > different types but it doesn't work : it is not possible to have 
> > > > two elements with the same name.
> > > >
> > > > Thanks.
> > > > Pierre.
> > > >
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