From: Mike Depot <mdepot@...>
Date: 2002-05-29T10:42:38+09:00
Subject: Re: Singleton Class

> require 'singleton'
>
> class Singltn
>   include Singleton
>
>   def initialize
>     raise NotImplementedError
>   end;
> end;
>
> x = Singltn.instance;

That's it? Ruby is awesome.   Using the above, should I declare my class
variables as @@var or just @var?