Another thing I'm wondering about....

using the context /PLAY/ACT/SCENE[1]
I would expect
count(ancestor::*) to return 2  i.e. /PLAY/ACT and not 3 as the test expects
ancestor doesn't include itself by mistake?
Eddie



----- Original Message -----
From: bob mcwhirter <[EMAIL PROTECTED]>
To: Eddie Mc Greal <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Friday, May 03, 2002 4:29 PM
Subject: Re: [Jaxen] DefaultLcationPath


>
> Hmmm...
>
> I just cribbed HashMap from the Sun sources, and changed the equals()
> and hashCode() calls.  I'll try to get a chance to look at it today,
> but no promises.
>
> Anyone want to run a diff against 1.4's IdentityHashMap?
> (or just copy it from the JDK into Jaxen?)
>
> -bob
>
> On Fri, 3 May 2002, Eddie Mc Greal wrote:
>
> > point taken - didn't think of that
> > However there is still a problem - I don' think the IdentityHashMap
works
> > correctly.
> >
> > The following doesn't produce the correct result
> > count(PLAY/ACT/SCENE[1] ) returns 1
> > when I take out the identity map I get 5 but then all the ancestor test
> > fail! (obvious to me now )
> > So, I'll commit my version of the DefaultLocationPath as I'm pretty sure
it
> > is correct - can you look at the IdentityMap issue - all the ancestor
test
> > are currently broken
> > Eddie
> >
> > ----- Original Message -----
> > From: bob mcwhirter <[EMAIL PROTECTED]>
> > To: Eddie Mc Greal <[EMAIL PROTECTED]>
> > Cc: <[EMAIL PROTECTED]>
> > Sent: Friday, May 03, 2002 3:51 PM
> > Subject: Re: [Jaxen] DefaultLcationPath
> >
> >
> > > On Fri, 3 May 2002, Eddie Mc Greal wrote:
> > >
> > > > after furter investigation  I found the following
> > > > the reason for the change (1.8 to 1.9) was the following xpath
> > > >
> > > > count(/PLAY/ACT/SCENE[1]) should be 5 and not 1.
> > > > However, the fix for this problem (made by xcut) is incorrect.
> > > > The problem is the use of the unique map to filter out identical
nodes
> > but /PLAY/ACT/SCENE produces several SCENE nodes. Only adding the first
one
> > leads to the bug that count only finds 1 instead of 5.
> > > > I've removed the unique map (any objections? why was it used in the
> > first place?) and checked it in. All test pass including
> > count(/PLAY/ACT/SCENE[1])
> > >
> > > The IdentityHashMap?
> > >
> > > That's there, because of things involving '..'.
> > >
> > > /PLAY/ACT/..
> > >
> > > That selects the ACTs, obviously, and then their parents.
> > >
> > > Typically, a play has 5 ACTs, so then we're looking at 5 instances of
> > > the PLAY parent.  Being a node-set (instead of a node-bag), we have to
> > > eliminate the duplicate instances of PLAY.
> > >
> > > The Map, if its the one I'm thinking of, though, should be an
> > > IdentityHashMap, which would allow 5 different ACT elements in it, as
> > > long as they were not the same instance.  (It uses the identity
hashCode
> > > and ==, instead of hashCode() and equals()).
> > >
> > > So, I guess the test we need is that:
> > >
> > > count(/PLAY/ACT/SCENE/../..) == 1
> > >
> > > or
> > >
> > > count(/PLAY/ACT/SCENE/..) == 5
> > >
> > > -bob
> > >
> > >
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