2015-08-13 23:54:40 +02:00
|
|
|
---
|
|
|
|
|
layout: pattern
|
|
|
|
|
title: Servant
|
|
|
|
|
folder: servant
|
2015-08-15 18:03:05 +02:00
|
|
|
permalink: /patterns/servant/
|
2015-08-20 21:40:07 +02:00
|
|
|
categories: Structural
|
|
|
|
|
tags: Java
|
2015-08-13 23:54:40 +02:00
|
|
|
---
|
|
|
|
|
|
|
|
|
|
**Intent:** Servant is used for providing some behavior to a group of classes.
|
|
|
|
|
Instead of defining that behavior in each class - or when we cannot factor out
|
|
|
|
|
this behavior in the common parent class - it is defined once in the Servant.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
**Applicability:** Use the Servant pattern when
|
|
|
|
|
|
2015-08-15 18:03:05 +02:00
|
|
|
* when we want some objects to perform a common action and don't want to define this action as a method in every class.
|
