Ok, I suspect that I may have posted a later version, with 3.1 cleanups,
without an [ENH] tag.  I know that I privately emailed a version for 3.2,
with cleanups, to Andreas.  I can post those this evening, or you can
perhaps pull them from the 3.3a update server stream?  The link below is out
of date (no cleanups, uses #evaluate rather than #value, ...).

I am glad to hear you are using this mechanism, Ned.  I really like it as
the preferred publish-subscribe mechanism.  Note thtat I selected to keep
the WeakIdentityKeyDictionary, in EventManager, hopefully to remove those
dreadful stong references to objects that fail to detach from registrations.
I find that this still often happens when an object is an argument in a
registered MessageSend.  It almost brings us back to C++ style destructors.
And so it goes...  :)

Here is my old posting (3.1) from August amid a whole slew of changesets I
had posted then:   http://swiki.gsug.org:8080/sqfixes/1717.html

Full credit for this work should be given to John Sarkela, David Caster, and
Paul McDonough - the authors of the XP chapter in the NuBlu book.  All
errors are mine!

cheers,
Rob

> -----Original Message-----
> From: Ned Konz [mailto:ned at bike-nomad.com]
> Sent: Monday, March 18, 2002 1:57 PM
> To: squeak-dev at lists.squeakfoundation.org
> Subject: Re: [BUG]Morph>>updateableActionMap
> 
> 
> On Monday 18 March 2002 10:32 am, Withers, Robert wrote:
> > I think your use of this framework is the first indication 
> I have had of
> > someone using this framework in Squeak, aside from a single 
> user in the
> > core (World enter/leave).  I think that's great!  It really 
> is a more
> > effective way to wire components together in the Observer 
> pattern.  It's
> > more finely grained to action/response.  If anyone else uses this
> > mechanism, let this be the heads up.
> 
> I use it as the basis for my finite state machine event handler in 
> Connectors. It makes more sense than the old dependents 
> mechanism, and is 
> lighter weight.
> 
> I'm glad to hear about this change; can you give a pointer to 
> the change sets?
> 
> Thanks,
> -- 
> Ned Konz
> currently: Stanwood, WA
> email:     ned at bike-nomad.com
> homepage:  http://bike-nomad.com
>