From: Ronggen Pan <rpan@...>
Date: 2005-12-26T09:02:36+09:00
Subject: Ruby Eventing

------=_NextPart_000_000C_01C6097D.5A1D27E0
Content-Type: text/plain;
	charset="us-ascii"
Content-Transfer-Encoding: 7bit

Hi,
 
While working on a state machine work flow, I need a flexible way to define
event/event handling. Since I came from C# background, so I have come up
event.rb to share with everyone. Welcome for comments.
 
Here's the example codes. You can get event.rb from
http://competo.com/code/event.rb.
Thanks!
class CoffeeMaker

   include Event

   def initialize

     event 'brew_ready'

     event 'brewing_started'

   end

   def brew

     on_brewing_started('new brew started')

     #brewing ...

     on_brew_ready('coffee is ready!')

   end

 end



 class CoffeeLover

  def get_coffee(*args)

   puts "thanks for the coffee!"

  end

 end



 cm = CoffeeMaker.new

 cm.brewing_started('+s1') {|*args| puts args}

 cm.brew_ready('+s2') {|*args| puts args}

 cl = CoffeeLover.new

 cm.brew_ready('+s3') {|*args| cl.get_coffee args} # add sink with +

 cm.brew

 

 cm.brew_ready('-s3') #remove sink with -

 cm.brew



 produces ...



new brew started

thanks for the coffee!

coffee is ready!

new brew started

coffee is ready!
 
 

------=_NextPart_000_000C_01C6097D.5A1D27E0--