gaspersic/java-design-patterns
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

#354 Add maven model for feature toggle design pattern

Browse Source
This commit is contained in:
Joseph McCarthy
2016-01-25 21:14:24 +00:00
parent cf10bd1d05
commit d7526fc7c0
86 changed files with 1165 additions and 270 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
strategy/index.md
View File

@@ -10,21 +10,24 @@ tags:
- Gang Of Four
---
**Also known as:** Policy
## Also known as
Policy
**Intent:** Define a family of algorithms, encapsulate each one, and make them
## 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](./etc/strategy_1.png "Strategy")
**Applicability:** Use the Strategy pattern when
## 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
**Credits**
## Credits
* [Design Patterns: Elements of Reusable Object-Oriented Software](http://www.amazon.com/Design-Patterns-Elements-Reusable-Object-Oriented/dp/0201633612)