Software Design Patterns Questions Medium
The purpose of the Strategy design pattern is to define a family of algorithms, encapsulate each one, and make them interchangeable. This pattern allows the algorithms to vary independently from the clients that use them.
The implementation of the Strategy pattern involves creating an interface or abstract class that represents the common behavior of the algorithms. Each algorithm is then implemented as a concrete class that implements this interface. The client code can then use the interface to interact with any of the concrete algorithm classes interchangeably.
To use the Strategy pattern, the client code typically receives an instance of the desired algorithm class through a setter method or constructor. This allows the client to dynamically change the algorithm at runtime, without modifying the client code itself.
The Strategy pattern promotes code reusability, flexibility, and maintainability by separating the algorithm implementation from the client code. It also allows for easy addition or modification of algorithms without impacting the existing codebase.