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Modify Observer pattern UML (iluwatar#877)
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‎observer/README.md‎

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@@ -19,7 +19,7 @@ Define a one-to-many dependency between objects so that when one
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object changes state, all its dependents are notified and updated
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automatically.
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![alt text](./etc/observer_1.png "Observer")
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![alt text](./etc/observer.png "Observer")
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## Applicability
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Use the Observer pattern in any of the following situations

‎observer/etc/observer.png‎

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‎observer/etc/observer.ucls‎

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@@ -1,9 +1,9 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<class-diagram version="1.1.8" icons="true" automaticImage="PNG" always-add-relationships="false" generalizations="true"
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realizations="true" associations="true" dependencies="false" nesting-relationships="true">
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<class-diagram version="1.2.3" icons="true" automaticImage="PNG" always-add-relationships="false" generalizations="true"
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realizations="true" associations="true" dependencies="false" nesting-relationships="true" router="FAN">
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<class id="1" language="java" name="com.iluwatar.observer.Hobbits" project="observer"
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file="/observer/src/main/java/com/iluwatar/observer/Hobbits.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="106" width="175" x="193" y="288"/>
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<position height="-1" width="-1" x="723" y="333"/>
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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"/>
@@ -12,7 +12,7 @@
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</class>
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<interface id="2" language="java" name="com.iluwatar.observer.WeatherObserver" project="observer"
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file="/observer/src/main/java/com/iluwatar/observer/WeatherObserver.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="88" width="175" x="408" y="488"/>
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<position height="-1" width="-1" x="454" y="330"/>
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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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</interface>
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<class id="3" language="java" name="com.iluwatar.observer.Orcs" project="observer"
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file="/observer/src/main/java/com/iluwatar/observer/Orcs.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="106" width="175" x="408" y="288"/>
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<position height="-1" width="-1" x="454" y="468"/>
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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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</class>
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<class id="4" language="java" name="com.iluwatar.observer.Weather" project="observer"
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file="/observer/src/main/java/com/iluwatar/observer/Weather.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="160" width="252" x="623" y="288"/>
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<position height="-1" width="-1" x="454" y="129"/>
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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"/>
@@ -39,7 +39,7 @@
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</class>
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<enumeration id="5" language="java" name="com.iluwatar.observer.WeatherType" project="observer"
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file="/observer/src/main/java/com/iluwatar/observer/WeatherType.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="178" width="154" x="623" y="488"/>
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<position height="-1" width="-1" x="791" y="129"/>
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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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</enumeration>
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<association id="6">
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<end type="SOURCE" refId="4" navigable="false">
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<attribute id="7" name="observers"/>
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<multiplicity id="8" minimum="0" maximum="2147483647"/>
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<attribute id="7" name="observers">
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<position height="0" width="0" x="-41" y="-202"/>
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</attribute>
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<multiplicity id="8" minimum="0" maximum="2147483647">
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<position height="0" width="0" x="-41" y="-202"/>
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</multiplicity>
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</end>
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<end type="TARGET" refId="2" navigable="true"/>
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<display labels="true" multiplicity="true"/>
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</association>
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<realization id="9">
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<end type="SOURCE" refId="3"/>
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<end type="TARGET" refId="2"/>
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</realization>
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<realization id="10">
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<end type="SOURCE" refId="1"/>
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<end type="TARGET" refId="2"/>
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</realization>
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<association id="10">
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<association id="11">
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<end type="SOURCE" refId="4" navigable="false">
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<attribute id="11" name="currentWeather"/>
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<multiplicity id="12" minimum="0" maximum="1"/>
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<attribute id="12" name="currentWeather">
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<position height="0" width="0" x="91" y="-448"/>
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</attribute>
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<multiplicity id="13" minimum="1" maximum="1">
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<position height="0" width="0" x="91" y="-448"/>
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</multiplicity>
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</end>
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<end type="TARGET" refId="5" navigable="true"/>
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<display labels="true" multiplicity="true"/>
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</association>
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<realization id="13">
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<end type="SOURCE" refId="3"/>
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<end type="TARGET" refId="2"/>
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</realization>
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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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