W3C home > Mailing lists > Public > www-ws-desc@w3.org > July 2002

Re: Open content model non-deterministic

From: Sanjiva Weerawarana <sanjiva@watson.ibm.com>
Date: Thu, 11 Jul 2002 21:34:02 +0600
Message-ID: <00b101c228f0$6484c4c0$13aa7cca@lankabook2>
To: "Martin Gudgin" <mgudgin@microsoft.com>, <www-ws-desc@w3.org>

"Martin Gudgin" <mgudgin@microsoft.com> writes:
> I've been updated the schema for our spec[1] and have run into trouble
> describing out completely open content model. I think we agreed in Paris
> that EIIs from other namespaces could appear absolutely anywhere.
> Unfortunately due to the optional nature of, for example, the import and
> type EIIs this makes the content model for, in this example,
> definitions, non-deterministic. The operation EIIs inside bindings have
> a similar problem.

Ouch, non-determinism is bad.

> If we make things only extensible at the end ( or at the beginning ),
> this problem will go away. For definitions we could allow extension
> elements at any point AFTER import and type...

+1. For consistency sake, should we say that extension elements must
always appear *after* any WSDL 1.2 elements?

Received on Thursday, 11 July 2002 11:35:02 UTC

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