What is the difference between pattern and strategies?
State design pattern is used to define and manage state of an object, while Strategy pattern is used to define a set of interchangeable algorithm and lets client to choose one of them. So Strategy pattern is a client driven pattern while Object can manage there state itself.
What is the difference between strategy and state design patterns?
State pattern helps object to manage state, while Strategy pattern allows the client to choose different behavior. But Strategies doesn’t contain the reference of Context, where they are used. State encapsulate state of an Object. While Strategy Pattern encapsulates an algorithm or strategy.
What are the advantages of strategy design pattern?
Most of the programmers just try to solve the problem they face without bothering about design patterns, redundant code or even tight-coupling. But good programmers start differently. They think about today’s requirements, future requirements, maintenance of code and re-usability of code.
What is the strategy design pattern in UML?
The strategy design pattern of a navigation app in UML: The Context receives a command from the app client (GUI button) and applies the necessary strategy. Interaction with the encapsulated strategy algorithms (ConcreteStrategies) takes place via the Strategy interface.
Which is tighter bridge pattern or strategy pattern?
Further more, the coupling between the context and strategies is tighter than the coupling between the abstraction and implementation in the bridge pattern. The strategy design pattern splits the behavior (there are many behaviors) of a class from the class itself.
How is the client aware of the strategy pattern?
In the classic implementation of the pattern the client should be aware of the strategy concrete classes. In order to decouple the client class from strategy classes is possible to use a factory class inside the context object to create the strategy object to be used.