Behavioral Design Patterns

Observer Object (subject) maintains list of its dependencies (observers). Subject will then notify observers whenever any state change occurs in it.  Related patterns are Publish-Subscribe pattern, mediator and singleton  http://weblogs.asp.net/fmarguerie/events-references-garbage-collecting-memory-leaks-and-weak-delegates Iterator http://sourcemaking.com/design_patterns/iterator Mediator Defines...

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