[DFDL-WG] Using a discriminator on a simple type

[Steve Hanson]

I know we discussed this on Tuesday's call, but I am really struggling 
with why I would ever want to do it. It seems to me it is an accident 
waiting to happen. A type is an abstract reusable thing, I have no idea 
where it will end up being used, so it is positively dangerous for a 
discriminator to appear. What is it discriminating? Answer: any 
surrounding point of uncertainty, no matter where that might be. 

Please can someone provide me with a real use case for this?

Regards

Steve Hanson
Architect, IBM Data Format Description Language (DFDL)
Co-Chair, OGF DFDL Working Group
IBM SWG, Hursley, UK
smh at uk.ibm.com
tel:+44-1962-815848
Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 
741598. 
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.ogf.org/pipermail/dfdl-wg/attachments/20130724/ac8f6173/attachment.html>