From: Chris Hulan <chris.hulan@...>
Date: 2008-07-07T21:31:23+09:00
Subject: Re: inheritance v passing object through the constructor

On Jul 7, 7:37 am, aidy <aidy.le...@googlemail.com> wrote:
> Hi,
>
> Could anyone please tell me what the difference would be of inheriting
> a class versus passing that class\object through the initialize
> method?
>
> class ErrorBox < Box
>
> end
>
> v
>
> box ||= Box.new
>
> class ErrorBox
>   def initialize(box)
>
>   end
>
> end
>
> And why would I do one over the other?
>
> Thanks
>
> Aidy

Try googling "inheritance vs delegation" and "inheritance vs
composition"
Here is a discusin from Perl (http://www.perlmonks.org/index.pl?
node_id=278375), looks to cover the
area pretty good

Artima has a lot of good info, here is an article on inheritence vs
composition (similar to delegation),
http://www.artima.com/designtechniques/compoinh.html

cheers