What is the status
of defining "collections" in XPath or XQuery? The use cases specified by
W3C seem to be more
at the
"collection" level than specific documents. It seems that each book in
a bibliographies document is better
modeled as a
document in a collection called
"bibliographies".
As it happens, it's a hot topic
of discussion in the WG right now. Proposals are still at a fairly early
stage.
Is there thought
going on regarding constraints on collections (when they are defined)? I
may want to have all
invoice
numbers in a collection be unique.
I haven't seen any proposals that
address that. Certainly, XML Schema doesn't provide any cross-document
validation.
Mike
Kay
