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목록Programming (1)
Tong's Blog
[Design Pattern] Observer Pattern 옵저버 패턴
Observer Pattern(옵저버 패턴) The observer pattern is a software design pattern in which an object, called the subject, maintains a list of its dependents, called observers, and notifies them automatically of any state changes, usually by calling one of their methods. It is mainly used to implement distributed event handling systems, in "event driven" software. In those systems, the subject is usuall..
Programming/DesignPattern
2019. 11. 17. 13:16