I have done a few optional examples
and, with the except of simple types, the same discriminators apply
The rules
- A dfdl:discriminator resolves the presence
of its parent group (sequence or choice). Note this isn't necessarily a
point of uncertainty
- If the parent group is the content model
for a complex types then the instance of the element of the complex type
also exists (that is: if the group is only defining the content of a complex
element then the discriminator propagates from the group to the element
automatically)
Mean that a discriminator does not resolve
an optional/unordered/floating element of simpleType (see first optional
example)
Alan Powell
MP 211, IBM UK Labs, Hursley, Winchester, SO21 2JN, England
Notes Id: Alan Powell/UK/IBM email: alan_powell@uk.ibm.com
Tel: +44 (0)1962 815073
Fax: +44 (0)1962 816898
| From:
| Alan Powell/UK/IBM@IBMGB
|
| To:
| dfdl-wg@ogf.org
|
| Date:
| 11/12/2009 16:43
|
| Subject:
| [DFDL-WG] New discriminator examples |
I started building examples implementing the new discriminator semantics
for each type of point of uncertainty . I only got as far as simple
choices with simple and complex elements as there seem to be lots of different
cases.
It is worth sharing anyway to see if we are on the right track.
The long form discriminator is very verbose do is it worth inventing a
short form or will it always be done by tools anyway?
Alan Powell
MP 211, IBM UK Labs, Hursley, Winchester, SO21 2JN, England
Notes Id: Alan Powell/UK/IBM email: alan_powell@uk.ibm.com
Tel: +44 (0)1962 815073
Fax: +44 (0)1962 816898
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
[attachment "Discriminato- examples-1.xsd" deleted by Alan Powell/UK/IBM]
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