[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]
Subject: Re: [ubl-ndrsc] Containers
I'd rather not go there at this time. IOW: we finally reached a decision about containers that is agreeable to all. Let's leave it there. It's not perfect, but it's a decision, and we can all live with it, and we can change it in the future if needed (perhaps along your line of thought) in a not very-disturbingly-backward-incompatible manner. Chin Chee-Kai wrote: > On Fri, 16 May 2003, Eduardo Gutentag wrote: > > >>>... >>>yes, but... >>> >>>>Or could the container for cardinality 0..n be itself of >>>>cardinality 0..1 (0 if instance content is 0 cardinality, >>>>1 otherwise) instead of 1..1 (always has) or 0..0 (never has)? >>> >>>Hm, must think about this. Think, think, think...Well, I think >>>it's a good idea, but not enforceable. I don't think there is >>>any way to say, in XSD, that an instance is valid if and only >>>if a given kind of list container does not appear in the instance >>>when what it could contain does not appear, and does appear >>>otherwise...IOW, there's no way to specify that it's optional >>>under some circumstances but mandatory under others... Better let >>>the user realize that having a container around order items makes >>>sense while having one around possible street lines does not... > > > (... as if the spirit never dies...) > > How feasible is it to use <xsd:choice> plus divide-and-conquer > by having those cardinalities with 0..n divided into 2 choices > of 0 + 1..n ? If the <xsd:choice> is a run-time decision left > to the UBL processor, it might just be possible though I stand > corrected. > > > > Best Regards, > Chin Chee-Kai > SoftML > Tel: +65-6820-2979 > Fax: +65-6743-7875 > Email: cheekai@SoftML.Net > http://SoftML.Net/ > > -- Eduardo Gutentag | e-mail: eduardo.gutentag@Sun.COM Web Technologies and Standards | Phone: +1 510 550 4616 x31442 Sun Microsystems Inc. | 1800 Harrison St. Oakland, CA 94612 W3C AC Rep / OASIS TAB Chair
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]