From: Edgardo Hames <ehames@...>
Date: 2005-10-05T22:09:17+09:00
Subject: Re: Object Orientation

On 10/5/05, Krekna Mektek <krekna@gmail.com> wrote:
>
> By the way, why are methods not named following the lowercaseUppercase
> convention, as in Java?
> This way I can see more directly that something is a method, and not
> an instance variable.
>

You may want to take a look at the Pickaxe's Book
(http://www.rubycentral.com/book/)

In the chapter "Classes, Objects and Variables", they mention the
Uniform Access Principle of Bertrand Meyer. Not ot seeing the
difference between an instance variable and a method is a Good Thing
(anyway, you cannot access an instance variable directly in Ruby.).
From the book:

"By hiding the difference between instance variables and calculated
values, you are shielding the rest of the world from the
implementation of your class. You're free to change how things work in
the future without impacting the millions of lines of code that use
your class. This is a big win."

Cheers,
Ed
--
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Thou shalt study thy libraries and strive not to reinvent them without cause,
that thy code may be short and readable and thy days pleasant and productive.
-- Seventh commandment for C programmers