From: Robert Klemme <shortcutter@...>
Date: 2008-04-08T17:03:13+09:00
Subject: Re: Is possible to define various methods at same time?

2008/4/8, Robert Klemme <shortcutter@googlemail.com>:
> 2008/4/7, Iñaki Baz Castillo <ibc@aliax.net>:
>
> > El Lunes, 7 de Abril de 2008, Robert Klemme escribió:
>  >
>  >
>  >  > Can you explain why you need this?  Maybe there is a different
>  >  > solution altogether. This redundancy in method definitions is
>  >  > irritating to me and I suspect there might be a better way to achieve
>  >  > what you really need.
>  >
>  >
>  > Thanks a lot. Finally it was not so important for me as I thought initially,
>  >  so I can avoid using it. I asked that for the following reason:
>  >
>  >  I'm using CusomLogger class that inherits from Logger class. And I want to
>  >  modify some methods, all exactly the same:
>  >
>  >                 def debug(log_zone, msg)  super(formatter(log_zone, msg))  end
>  >                 def info(log_zone, msg)  super(formatter(log_zone, msg))  end
>  >                 def warn(log_zone, msg)  super(formatter(log_zone, msg))  end
>  >                 def error(log_zone, msg)  super(formatter(log_zone, msg))  end
>  >                 def fatal(log_zone, msg)  super(formatter(log_zone, msg))  end
>  >                 def unknown(log_zone, msg)  super(formatter(log_zone, msg))  end
>  >
>  >  As you can see, all the methods body is exactly the same. I expected there
>  >  could be a cool way to do something as:
>  >
>  >                 def debug,info,war,error,fatal,unknown(log_zone, msg)
>  >                         super(formatter(log_zone, msg))
>  >                  end
>  >
>  >  just it.
>
>
> I agree to Gennady: delegation might be a better choice over inheritance here.

PS: I would guess that the original Logger class provides some means
to control formatting, for example a pluggable formatter. Why can't
you use that?

Kind regards

robert

-- 
use.inject do |as, often| as.you_can - without end