Gian Carlo Pace gicappa

## gist:3842243

      
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                avdi
                / gist:3842243
            
            
              Created
              October 5, 2012 20:38
            
              
                Observer pattern terminology
              
          
    When it comes to the Observer pattern, there are a number of related, overlapping terms used by different codebases. Off the top of my head:

Observer/Observable/Subject
Listener/Listenable
Event/Event source/Event sink/Event handler
Hook/Callback
Subscriber/Subscribable
"Firing" vs. "Triggering" vs "Notifying" vs "Executing"

Which of these do consider to be synonymous?

  
## sketch.rb
class Organization
  def to_param
    "42"
  end

  def saved?
    rand < 0.5
  end
end
	class Organization
	def to_param
	"42"
	end

	def saved?
	rand < 0.5
	end
	end