We've discussed this a while ago, I think instigated by Geir.
The XPath specification doesn't mentioned document-order, with
the exception of proximity predicates. Aside from that, there's
no guarantee that results will be in any particular order. It
speaks only of "Node sets", where a set is an unordered collection
of non-duplicated entities.
For the most part, we retain document order, because it's free.
But, there are some cases (notable descendant-or-self) where we
loose it. I think Geir determined that it's simply too much of
a performance hit to always guarantee document ordering.
I think there was a suggestion of a DocumentOrderComparator, that,
given a Jaxen-returned List, it could be used re-sort that list
into document-order.
Check the archives for a lengthy discussion. grep for 'Geir'.
-bob
On Fri, 3 May 2002, Eddie Mc Greal wrote:
> Mark,
> I would suggest you make a test suite first to demonstrate the problem-
> generally speaking order is preserved as Nodes are transported using lists
> Give us an example of what you're after and then we can trace though to see
> where the order is being screwed up
> Eddie
> ----- Original Message -----
> From: Mark Hortman <[EMAIL PROTECTED]>
> To: 'bob mcwhirter' <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> Sent: Friday, May 03, 2002 4:50 PM
> Subject: RE: [Jaxen] Jaxen > 1.0
>
>
> > I would really like to get the bug fixed that makes jaxen not return
> queries
> > in document order. I will give it a shot to fix it if someone can give me
> > some hints about why and where (in the code) the bug is.
> >
> >
> >
> > -----Original Message-----
> > From: bob mcwhirter [mailto:[EMAIL PROTECTED]]
> > Sent: Friday, May 03, 2002 9:35 AM
> > To: [EMAIL PROTECTED]
> > Subject: [Jaxen] Jaxen > 1.0
> >
> >
> > Well, folks..
> >
> > So, if anyone has anything that didn't make it into 1.0 that they'd
> > like to see in 1.1 (or 1.0.1, whichever we call it), now's the time
> > to step up.
> >
> >
> >
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