From: Fasun Lau <fasun.lau@...>
Date: 2009-05-01T19:38:52+09:00
Subject: Re: Question about "protected" and "private"

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Got it! Thanks very much!

2009/5/1 Shaun Keller <shaun@27stars.co.uk>

>
> In most OO languages, private methods can only be called from within the
> defining class.
>
> ie
>
> class MyClass
>
>  def method1
>    method2
>  end
>
>  private
>
>  def method2
>  end
> end
>
> A protected method can also be called from subclasses. So if method2 was
> protected, and MySubClass < Class, then method2 could be called from
> within MySubClass.
>
>
> In ruby, private and protected methods can be called by any instance of
> the defining class or its subclasses, but private methods cannot have an
> explicit receiver.
>
> In short, the difference is that protected methods can be called from
> within a class on ANY OBJECT of that class or its subclasses.
>
> See http://blog.zerosum.org/2007/11/22/ruby-method-visibility for more
> details
> --
> Posted via http://www.ruby-forum.com/.
>
>


-- 
Fasun Lau

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