gaspersic/java-design-patterns
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
java-design-patterns/strategy
History
Leonóra Dér 3b1a28149b decrease number of checkstyle errors in singleton, strategy and visitor patterns #1021 (#1054) 
* fix checkstlye errors - visitor pattern

* fix checkstlye errors - strategy pattern

* fix checkstlye errors - singleton pattern
2019-10-31 19:54:13 +02:00
..
etc
#190 Remove urm plugin
2017-11-28 20:55:52 +02:00
src
decrease number of checkstyle errors in singleton, strategy and visitor patterns #1021 (#1054)
2019-10-31 19:54:13 +02:00
pom.xml
Update license headers
2019-10-12 20:05:54 +03:00
README.md
Merge branch 'master' into master
2018-01-28 14:44:19 -05:00

README.md

layout, title, folder, permalink, categories, tags
layout title folder permalink categories tags
pattern Strategy strategy /patterns/strategy/ Behavioral
Java
Difficulty-Beginner
Gang Of Four

Also known as

Policy

Intent

Define a family of algorithms, encapsulate each one, and make them interchangeable. Strategy lets the algorithm vary independently from clients that use it.

alt text

Applicability

Use the Strategy pattern when

  • many related classes differ only in their behavior. Strategies provide a way to configure a class either one of many behaviors
  • you need different variants of an algorithm. for example, you might define algorithms reflecting different space/time trade-offs. Strategies can be used when these variants are implemented as a class hierarchy of algorithms
  • an algorithm uses data that clients shouldn't know about. Use the Strategy pattern to avoid exposing complex, algorithm-specific data structures
  • a class defines many behaviors, and these appear as multiple conditional statements in its operations. Instead of many conditionals, move related conditional branches into their own Strategy class

Tutorial

Credits