java-design-patterns/delegation/index.md

---
layout: pattern
title: Delegation
folder: delegation
permalink: /patterns/delegation/
categories: Behavioral
tags:
 - Java
 - Difficulty-Beginner
---

**Also known as:** Proxy Chains

**Intent:** It is a technique where an object expresses certain behavior to the outside but in 
reality delegates responsibility for implementing that behaviour to an associated object. 

![alt text](./etc/delegation.png "Delegate")

**Applicability:** Use the Delegate pattern in order to achieve the following

* Reduce the coupling of methods to their class
* Components that behave identically, but realize that this situation can change in the future.

**Credits**

* [Design Patterns: Elements of Reusable Object-Oriented Software](http://www.amazon.com/Design-Patterns-Elements-Reusable-Object-Oriented/dp/0201633612)
Add template index.md for population later #324 2015-12-26 22:29:45 +00:00			`---`
Populate the index.md for the delegate module #324 2015-12-28 18:16:58 +00:00			`layout: pattern`
			`title: Delegation`
			`folder: delegation`
			`permalink: /patterns/delegation/`
			`categories: Behavioral`
			`tags:`
			`- Java`
			`- Difficulty-Beginner`
			`---`

			`Also known as: Proxy Chains`
Add template index.md for population later #324 2015-12-26 22:29:45 +00:00
Populate the index.md for the delegate module #324 2015-12-28 18:16:58 +00:00			`Intent: It is a technique where an object expresses certain behavior to the outside but in`
			`reality delegates responsibility for implementing that behaviour to an associated object.`
Add template index.md for population later #324 2015-12-26 22:29:45 +00:00
Populate the index.md for the delegate module #324 2015-12-28 18:16:58 +00:00			`![alt text](./etc/delegation.png "Delegate")`
Add template index.md for population later #324 2015-12-26 22:29:45 +00:00
Populate the index.md for the delegate module #324 2015-12-28 18:16:58 +00:00			`Applicability: Use the Delegate pattern in order to achieve the following`
Add template index.md for population later #324 2015-12-26 22:29:45 +00:00
Populate the index.md for the delegate module #324 2015-12-28 18:16:58 +00:00			`* Reduce the coupling of methods to their class`
			`* Components that behave identically, but realize that this situation can change in the future.`
Add template index.md for population later #324 2015-12-26 22:29:45 +00:00
Populate the index.md for the delegate module #324 2015-12-28 18:16:58 +00:00			`Credits`
Add template index.md for population later #324 2015-12-26 22:29:45 +00:00
Populate the index.md for the delegate module #324 2015-12-28 18:16:58 +00:00			`* [Design Patterns: Elements of Reusable Object-Oriented Software](http://www.amazon.com/Design-Patterns-Elements-Reusable-Object-Oriented/dp/0201633612)`