What are the applicable scenarios of the policy model

This article will explain in detail what the applicable scenarios of the strategy mode are. The content of the article is of high quality. Therefore, Xiaobian shares it with you as a reference. I hope that after reading this article, you will have a certain understanding of relevant knowledge.

Policy patterns are applicable in scenarios where: 1. many related classes simply differ in behavior;2. different variants of an algorithm need to be used;3. algorithms use data that customers should not know;4. a class defines multiple behaviors, and these behaviors appear in the form of multiple conditional statements in the operation of the class.

strategy pattern

Define a series of algorithms, package them one by one, and make them interchangeable. This pattern allows the algorithm to vary independently of the client using it

applicability

Many related classes simply differ in behavior. Policy provides a way to configure a class with one of several behaviors

Different variants of an algorithm are required

Algorithms use data that customers shouldn't know. Avoid exposing complex algorithmic data structures

A class defines multiple behaviors, and these behaviors appear in the form of multiple conditional statements in the class operations

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