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The observer pattern (sometimes known as publish/subscribe) is a design pattern used in computer programming to observe the state of an object in a program. It is related to the principle of implicit invocation.
created by syam1224 on 2008-05-08 20:47:48
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Observer GoF
Define a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.
http://www.dofactory.com/Patterns/PatternObserver.
created by syam1224 on 2008-05-08 20:49:25
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Observer Design Pattern from Wikipedia
This pattern is mainly used to implement a distributed event handling system. In some programming languages, the issues addressed by this pattern are handled in the native event handling syntax. This is a very interesting feature in terms of real-time deployment of applications.
http://en.wikipedia.org/wiki/Observer_pattern
created by syam1224 on 2008-05-08 20:48:41
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