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Merge pull request iluwatar#24 from sideris/master
Changed UML diagrams from GenMyModel to ObjectAid
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‎README.md

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##Servant
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**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.
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![alt text](https://github.com/iluwatar/java-design-patterns/blob/master/servant/etc/servant.jpg "Servant")
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![alt text](https://github.com/iluwatar/java-design-patterns/blob/master/servant/etc/servant-pattern.png "Servant")
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**Applicability:** Use the Servant pattern when
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* When we want some objects to perform a common action and don't want to define this action as a method in every class.

‎servant/etc/servant-pattern.jpg

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‎servant/etc/servant-pattern.png

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‎servant/etc/servant-pattern.ucls

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<?xml version="1.0" encoding="UTF-8"?>
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<class-diagram version="1.1.7" icons="true" automaticImage="JPEG" always-add-relationships="false"
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generalizations="true" realizations="true" associations="true" dependencies="true" nesting-relationships="true">
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<class id="1" language="java" name="App" project="servant" file="/servant/src/App.java" binary="false"
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corner="BOTTOM_RIGHT">
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<position height="-1" width="-1" x="228" y="149"/>
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<display autosize="true" stereotype="true" package="true" initial-value="false" signature="true"
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sort-features="false" accessors="true" visibility="true">
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<attributes public="true" package="true" protected="true" private="true" static="true"/>
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<operations public="true" package="true" protected="true" private="true" static="true"/>
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</display>
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</class>
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<class id="2" language="java" name="King" project="servant" file="/servant/src/King.java" binary="false"
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corner="BOTTOM_RIGHT">
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<position height="-1" width="-1" x="522" y="673"/>
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<display autosize="true" stereotype="true" package="true" initial-value="false" signature="true"
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sort-features="false" accessors="true" visibility="true">
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<attributes public="true" package="true" protected="true" private="true" static="true"/>
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<operations public="true" package="true" protected="true" private="true" static="true"/>
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</display>
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</class>
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<class id="3" language="java" name="Queen" project="servant" file="/servant/src/Queen.java" binary="false"
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corner="BOTTOM_RIGHT">
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<position height="-1" width="-1" x="729" y="691"/>
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<display autosize="true" stereotype="true" package="true" initial-value="false" signature="true"
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sort-features="false" accessors="true" visibility="true">
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<attributes public="true" package="true" protected="true" private="true" static="true"/>
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<operations public="true" package="true" protected="true" private="true" static="true"/>
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</display>
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</class>
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<interface id="4" language="java" name="Royalty" project="servant" file="/servant/src/Royalty.java" binary="false"
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corner="BOTTOM_RIGHT">
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<position height="-1" width="-1" x="579" y="378"/>
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<display autosize="true" stereotype="true" package="true" initial-value="false" signature="true"
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sort-features="false" accessors="true" visibility="true">
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<attributes public="true" package="true" protected="true" private="true" static="true"/>
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<operations public="true" package="true" protected="true" private="true" static="true"/>
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</display>
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</interface>
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<class id="5" language="java" name="Servant" project="servant" file="/servant/src/Servant.java" binary="false"
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corner="BOTTOM_RIGHT">
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<position height="-1" width="-1" x="577" y="151"/>
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<display autosize="true" stereotype="true" package="true" initial-value="false" signature="true"
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sort-features="false" accessors="true" visibility="true">
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<attributes public="true" package="true" protected="true" private="true" static="true"/>
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<operations public="true" package="true" protected="true" private="true" static="true"/>
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</display>
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</class>
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<realization id="6">
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<end type="SOURCE" refId="2"/>
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<end type="TARGET" refId="4"/>
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</realization>
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<dependency id="7">
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<end type="SOURCE" refId="5"/>
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<end type="TARGET" refId="4"/>
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</dependency>
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<realization id="8">
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<end type="SOURCE" refId="3"/>
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<end type="TARGET" refId="4"/>
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</realization>
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<dependency id="9">
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<end type="SOURCE" refId="1"/>
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<end type="TARGET" refId="4"/>
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</dependency>
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<association id="10">
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<end type="SOURCE" refId="1" navigable="false">
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<attribute id="11" name="jenkins"/>
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<multiplicity id="12" minimum="0" maximum="1"/>
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</end>
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<end type="TARGET" refId="5" navigable="true"/>
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<display labels="false" multiplicity="false"/>
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</association>
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<classifier-display autosize="true" stereotype="true" package="true" initial-value="false" signature="true"
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sort-features="false" accessors="true" visibility="true">
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<attributes public="true" package="true" protected="true" private="true" static="true"/>
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<operations public="true" package="true" protected="true" private="true" static="true"/>
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</classifier-display>
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<association-display labels="true" multiplicity="true"/>
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</class-diagram>

‎servant/etc/servant.jpg

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