From: Michael Neumann <neumann@...>
Date: 2001-04-07T02:03:02+09:00
Subject: [ruby-talk:13537] Re: List of all instances of a class

Romuald Texier wrote:
> Is there a way to get a list of all instances of a class (and its 
> subclasses) without iterating over all objects ?

You could implement the behavior in Ruby:

class InstClass
  @@instances = []

  def initialize
    @@instances << self
  end

  def InstClass.getInstances
    @@instances
  end

end


Of course this has a little problem, because GC will not free any instance 
of that class. 



Regards

Michael