W3C home > Mailing lists > Public > xmlschema-dev@w3.org > December 2007

RE: Expressing relations between types

From: Michael Kay <mike@saxonica.com>
Date: Sat, 1 Dec 2007 00:21:37 -0000
To: "'Eric MALENFANT'" <Eric.Malenfant@sagem-interstar.com>, <xmlschema-dev@w3.org>
Message-ID: <024401c833b0$23211350$6501a8c0@turtle>

> I am thus wondering if there is a better way to define 
> "related" types like this.
> For example, is there a way to express the definition of 
> EntryPredicate by saying something like "this is the same 
> thing than an Entry, replacing dateTime by dateTimeRange, 
> unsingedInt by unsignedIntRange"?

Not within the XML Schema language.

Sometimes when your application contains higher-level structures or patterns
like this, it can be appropriate to describe the high-level structure in
your own notation and then generate the XML Schema definitions from this
(typically using XSLT to do the transformation).

Michael Kay
Received on Saturday, 1 December 2007 00:21:55 UTC

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