Factory patterns - PowerPoint PPT Presentation

Lecture 17: Singleton Pattern

Computer Science 313 – Advanced Programming Topics. Lecture 17: Singleton Pattern. How Can We Code…. Why One Is Better. Can create improvement from uniqueness Easy universal access to important resources Error checks and complex locks eliminated

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More on Strategy

More on Strategy. Cohesion vs. Coupling Implementing the Strategy Pattern Changing strategies (behaviors) at runtime. Cohesion: How focused the responsibilities of a class are. Cohesion : Does a class do many unrelated things? If “yes”, then it has low cohesion (bad)

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