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Add java 8 design patterns
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‎.gitignore‎

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.classpath
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.project
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.settings/
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target/

‎pom.xml‎

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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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<groupId>com.fe</groupId>
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<artifactId>java8DesignPattern</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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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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<version>4.8.1</version>
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</dependency>
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</dependencies>
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</project>

‎src/main/java/java8/chainofresponsability/payment/PaymentObj.java‎

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package java8.chainofresponsability.payment;
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public class PaymentObj {
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private int amount;
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public PaymentObj(int amount) {
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this.amount = amount;
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}
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public int getAmount() {
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return amount;
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}
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public void setAmount(int amount) {
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this.amount = amount;
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}
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}

‎src/main/java/java8/chainofresponsability/payment/PaymentProcessor.java‎

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package java8.chainofresponsability.payment;
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public abstract class PaymentProcessor {
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private PaymentProcessor next;
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public void setNext(PaymentProcessor processor){
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if(next == null ){
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next = processor;
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} else {
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next.setNext(processor);
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}
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}
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public PaymentObj process(PaymentObj p){
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handle(p);
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if(next != null ){
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return next.process(p);
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} else {
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return p;
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}
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}
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protected abstract void handle(PaymentObj p);
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}

‎src/main/java/java8/chainofresponsability/payment/PaymentProcessorA.java‎

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package java8.chainofresponsability.payment;
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public class PaymentProcessorA extends PaymentProcessor{
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@Override
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protected void handle(PaymentObj p) {
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System.out.println("PaymentProcessorA amount: " + p.getAmount());
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}
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}

‎src/main/java/java8/chainofresponsability/payment/PaymentProcessorB.java‎

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package java8.chainofresponsability.payment;
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public class PaymentProcessorB extends PaymentProcessor{
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@Override
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protected void handle(PaymentObj p) {
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System.out.println("PaymentProcessoB amount: " + p.getAmount());
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}
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}

‎src/main/java/java8/decorator/functions/Packing.java‎

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package java8.decorator.functions;
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public class Packing {
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public static Integer giftPacking(Integer value){
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return 15 + value;
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}
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}

‎src/main/java/java8/decorator/functions/Taxes.java‎

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package java8.decorator.functions;
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public class Taxes {
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public static Integer international(Integer value){
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return 50 + value;
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}
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}

‎src/main/java/java8/decorator/item/Book.java‎

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package java8.decorator.item;
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public class Book implements Item {
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private int price;
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public Book(int price) {
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this.price = price;
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}
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@Override
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public int getPrice() {
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return price;
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}
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}

‎src/main/java/java8/decorator/item/GiftPacking.java‎

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package java8.decorator.item;
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//Implementing Decorator Design pattern
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public class GiftPacking extends ItemExtras{
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public GiftPacking(Item item) {
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super(item);
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}
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@Override
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public int getPrice() {
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return 15 + super.getPrice();
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}
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}

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