From: Laurent Julliard <laurent@...>
Date: 2004-11-21T21:51:31+09:00
Subject: Re: Inner Class Relationship

James Edward Gray II wrote:
> On Nov 20, 2004, at 5:55 PM, Francis Hwang wrote:
> 
>> Since you haven't said much about how you're using this, maybe my 
>> answer will be a little presumptive, but: Is there are a particular 
>> reason you want the inner class to relate to the outer class this way?
> 
> 
> Yes.
> 
> Even if I separate the two classes, my questions remain unchanged:  
> What's a good way to allow one type of object to send private-ish 
> messages to another type of object?
> 
> As for details:  My outer class is a server.  My inner class is a 
> connection for that server.  When a connection ends, I need a way to 
> notify the Server object to remove it from it's maintenance list.  
> That's the message I'm wanting to hide from the outside world.
> 
> Thanks for the suggestions.
> 
> James Edward Gray II
> 
> 
> 

James,

What you need is FreeBase. FreeBAse is a databus written by Rich 
Kilmer that we extensively use in the FreeRIDE project (Ruby IDE). It 
allows any Ruby object to publish nodes in a tree -like hierarchy and 
other Ruby object to listen to what's happening to these nodes.

It's a sort of a meeting point for Roby object doesn't know or doesn't 
want to know about each other. You can get Freebase from the FreeRIDE 
source code. It's a self contain piece of code that we haven't touched 
for moths so it is farly stable.

The source file is at: 
http://rubyforge.org/frs/download.php/1641/freeride-0.8.0.tar.gz
extract it and take the freebase directory from there.

I have cc'ed Rich Kilmer as I know he was thinking of packaging 
Freebase separately but I could not find it.

Laurent