Class Observer
In: src/org/puremvc/ruby/patterns/observer/observer.rb
Parent: Object

An Observer is an object that encapsulates information about an interested object with a method that should be called when a particular Notification is broadcast.

In PureMVC, the Observer class assumes these responsibilities:

  • Encapsulate the notification (callback) method of the interested object.
  • Encapsulate the notification context (this) of the interested object.
  • Provide methods for setting the notification method and context.
  • Provide a method for notifying the interested object.

Methods

compare_notify_context   new   notify_observer  

Attributes

context  [RW] 
notify  [RW] 

Public Class methods

new(notify=nil, context=nil)

The notification method on the interested object should take one parameter of type Notification

Public Instance methods

compare_notify_context(object)

Compare an object to the notification context.

notify_observer(notification)

Notify the interested object.

[Validate]