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Merge pull request iluwatar#1 from iluwatar/master
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‎.gitignore

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.idea
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*.iml
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*.swp
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datanucleus.log
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/bin/
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/bin/
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/bin/
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data-mapper/src/main/resources/log4j.xml

‎.travis.yml

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language: java
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jdk:
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- oraclejdk8
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- oraclejdk8
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# whitelist
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branches:
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only:
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- master
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env:
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global:
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- GH_REF: github.com/iluwatar/java-design-patterns.git
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- secure: LxTDuNS/rBWIvKkaEqr79ImZAe48mCdoYCF41coxNXgNoippo4GIBArknqtv+XvdkiuRZ1yGyj6pn8GU33c/yn+krddTUkVCwTbVatbalW5jhQjDbHYym/JcxaK9ZS/3JTeGcWrBgiPqHEEDhCf26vPZsXoMSeVCEORVKTp1BSg=
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before_install:
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- export DISPLAY=:99.0
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- sh -e /etc/init.d/xvfb start
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after_success:
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- mvn clean test jacoco:report coveralls:report
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- mvn clean test jacoco:report coveralls:report
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- bash update-ghpages.sh
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sudo: false # route the build to the container-based infrastructure for a faster build

‎CODE_COVERAGE.md

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# Code Coverage Report generation
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To generate the code coverage report, execute the following command:
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> mvn clean verify
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This will generate code coverage report in each of the modules. In order to view the same, open the following file in your browser.
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> target/site/jacoco/index.html
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Please note that the above folder is created under each of the modules. For example:
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* adapter/target/site/jacoco/index.html
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* busniess-delegate/target/site/jacoco/index.html
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‎CONTRIBUTING.MD

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This is great you have something to contribute!
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Before going any further please read the [wiki](https://github.com/iluwatar/java-design-patterns/wiki)
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with conventions and rules we used for this project.

‎LICENSE.md

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The MIT License (MIT)
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Copyright (c) 2014 Ilkka Seppälä
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Copyright (c) 2014-2016 Ilkka Seppälä
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal

‎README.md

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‎abstract-document/README.md

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---
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layout: pattern
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title: Abstract Document
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folder: abstract-document
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permalink: /patterns/abstract-document/
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categories: Structural
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tags:
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- Java
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- Difficulty-Intermediate
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---
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## Intent
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Achieve flexibility of untyped languages and keep the type-safety
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![alt text](./etc/abstract-document-base.png "Abstract Document Base")
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![alt text](./etc/abstract-document.png "Abstract Document Traits and Domain")
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## Applicability
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Use the Abstract Document Pattern when
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* there is a need to add new properties on the fly
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* you want a flexible way to organize domain in tree like structure
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* you want more loosely coupled system
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## Credits
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* [Wikipedia: Abstract Document Pattern](https://en.wikipedia.org/wiki/Abstract_Document_Pattern)
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* [Martin Fowler: Dealing with properties](http://martinfowler.com/apsupp/properties.pdf)

‎abstract-document/etc/abstract-document-base.png

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‎abstract-document/etc/abstract-document-base.ucls

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<?xml version="1.0" encoding="UTF-8"?>
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<class-diagram version="1.1.9" 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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<interface id="1" language="java" name="com.iluwatar.abstractdocument.Document" project="design-patterns"
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file="/design-patterns/src/com/iluwatar/abstractdocument/Document.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="-1" width="-1" x="249" y="405"/>
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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="2" language="java" name="com.iluwatar.abstractdocument.AbstractDocument" project="design-patterns"
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file="/design-patterns/src/com/iluwatar/abstractdocument/AbstractDocument.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="-1" width="-1" x="250" y="237"/>
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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="com.iluwatar.abstractdocument.domain.Car" project="design-patterns"
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file="/design-patterns/src/com/iluwatar/abstractdocument/domain/Car.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="-1" width="-1" x="108" y="75"/>
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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="4" language="java" name="com.iluwatar.abstractdocument.domain.Part" project="design-patterns"
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file="/design-patterns/src/com/iluwatar/abstractdocument/domain/Part.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="-1" width="-1" x="400" y="76"/>
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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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<generalization id="5">
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<end type="SOURCE" refId="4"/>
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<end type="TARGET" refId="2"/>
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</generalization>
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<realization id="6">
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<end type="SOURCE" refId="2"/>
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<end type="TARGET" refId="1"/>
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</realization>
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<generalization id="7">
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<end type="SOURCE" refId="3"/>
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<end type="TARGET" refId="2"/>
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</generalization>
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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>

‎abstract-document/etc/abstract-document.png

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‎abstract-document/etc/abstract-document.ucls

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<?xml version="1.0" encoding="UTF-8"?>
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<class-diagram version="1.1.9" 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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<interface id="1" language="java" name="com.iluwatar.abstractdocument.Document" project="design-patterns"
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file="/design-patterns/src/com/iluwatar/abstractdocument/Document.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="-1" width="-1" x="341" y="376"/>
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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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<interface id="2" language="java" name="com.iluwatar.abstractdocument.domain.HasModel" project="design-patterns"
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file="/design-patterns/src/com/iluwatar/abstractdocument/domain/HasModel.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="81" width="173" x="41" y="194"/>
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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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<interface id="3" language="java" name="com.iluwatar.abstractdocument.domain.HasPrice" project="design-patterns"
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file="/design-patterns/src/com/iluwatar/abstractdocument/domain/HasPrice.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="81" width="175" x="254" y="194"/>
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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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<interface id="4" language="java" name="com.iluwatar.abstractdocument.domain.HasParts" project="design-patterns"
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file="/design-patterns/src/com/iluwatar/abstractdocument/domain/HasParts.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="81" width="173" x="469" y="194"/>
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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="com.iluwatar.abstractdocument.domain.Car" project="design-patterns"
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file="/design-patterns/src/com/iluwatar/abstractdocument/domain/Car.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="99" width="173" x="254" y="37"/>
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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="6" language="java" name="com.iluwatar.abstractdocument.domain.Part" project="design-patterns"
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file="/design-patterns/src/com/iluwatar/abstractdocument/domain/Part.java" binary="false" corner="BOTTOM_RIGHT">
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<position height="99" width="173" x="41" y="37"/>
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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="7">
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<end type="SOURCE" refId="5"/>
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<end type="TARGET" refId="2"/>
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</realization>
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<realization id="8">
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<end type="SOURCE" refId="6"/>
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<end type="TARGET" refId="2"/>
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</realization>
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<generalization id="9">
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<end type="SOURCE" refId="2"/>
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<end type="TARGET" refId="1"/>
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</generalization>
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<realization id="10">
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<end type="SOURCE" refId="5"/>
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<end type="TARGET" refId="3"/>
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</realization>
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<realization id="11">
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<end type="SOURCE" refId="5"/>
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<end type="TARGET" refId="4"/>
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</realization>
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<generalization id="12">
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<end type="SOURCE" refId="3"/>
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<end type="TARGET" refId="1"/>
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</generalization>
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<generalization id="13">
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<end type="SOURCE" refId="4"/>
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<end type="TARGET" refId="1"/>
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</generalization>
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<realization id="14">
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<end type="SOURCE" refId="6"/>
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<end type="TARGET" refId="3"/>
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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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<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>

‎abstract-document/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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The MIT License
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Copyright (c) 2014 Ilkka Seppälä
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
9+
in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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-->
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<artifactId>java-design-patterns</artifactId>
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<groupId>com.iluwatar</groupId>
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<version>1.13.0-SNAPSHOT</version>
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</parent>
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<artifactId>abstract-document</artifactId>
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<dependencies>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>

‎abstract-document/src/main/java/com/iluwatar/abstractdocument/AbstractDocument.java

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/**
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* The MIT License
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* Copyright (c) 2014 Ilkka Seppälä
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* <p>
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* <p>
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* <p>
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package com.iluwatar.abstractdocument;
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import java.util.List;
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import java.util.Map;
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import java.util.Objects;
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import java.util.Optional;
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import java.util.function.Function;
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import java.util.stream.Stream;
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/**
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* Abstract implementation of Document interface
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*/
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public abstract class AbstractDocument implements Document {
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private final Map<String, Object> properties;
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protected AbstractDocument(Map<String, Object> properties) {
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Objects.requireNonNull(properties, "properties map is required");
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this.properties = properties;
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}
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@Override
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public Void put(String key, Object value) {
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properties.put(key, value);
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return null;
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}
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@Override
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public Object get(String key) {
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return properties.get(key);
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}
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@Override
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public <T> Stream<T> children(String key, Function<Map<String, Object>, T> constructor) {
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Optional<List<Map<String, Object>>> any = Stream.of(get(key)).filter(el -> el != null)
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.map(el -> (List<Map<String, Object>>) el).findAny();
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return any.isPresent() ? any.get().stream().map(constructor) : Stream.empty();
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}
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@Override
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public String toString() {
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StringBuilder builder = new StringBuilder();
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builder.append(getClass().getName()).append("[");
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properties.entrySet()
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.forEach(e -> builder.append("[").append(e.getKey()).append(" : ").append(e.getValue()).append("]"));
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builder.append("]");
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return builder.toString();
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}
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}

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