Observer Pattern
2014-10-13 03:10:33 4 举报Observer Pattern
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ConcreteObserver2
+ attr1:Object+ attr2:Object+ attr3:Subject
Subject
+ registerObserver(Observer):void+ removeObserver(Observer):void+ notifyObservers():void
ConcreteObserver1
ConcreteSubject
+ attr1:Object+ attr2:Object+ attr3:List
Observer
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