Lang provides a host of helper utilities for the java.lang API, notably String manipulation methods, basic numerical methods, object reflection, concurrency, creation and serialization and System properties. Additionally it contains basic enhancements to java.util.Date and a series of utilities dedicated to help with building methods, such as ha…

HashCodeEqualsToStringExample.java

package com.kdstudio.snippets.tips.apache;

import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ReflectionToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;

/**
 * Example of using Commons-lang3 utilities.
 * 
 * Lang provides a host of helper utilities for the java.lang API, notably
 * String manipulation methods, basic numerical methods, object reflection,
 * concurrency, creation and serialization and System properties. Additionally
 * it contains basic enhancements to java.util.Date and a series of utilities
 * dedicated to help with building methods, such as hashCode, toString and
 * equals.
 * 
 * @author kdelfour
 */
public class HashCodeEqualsToStringExample {

	/**
	 * Constructor
	 */
	public HashCodeEqualsToStringExample() {
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see java.lang.Object#toString()
	 */
	@Override
	public String toString() {
		return ReflectionToStringBuilder.toString(this,
				ToStringStyle.MULTI_LINE_STYLE);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see java.lang.Object#hashCode()
	 */
	@Override
	public int hashCode() {
		return HashCodeBuilder.reflectionHashCode(this);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see java.lang.Object#equals(java.lang.Object)
	 */
	@Override
	public boolean equals(Object obj) {
		return EqualsBuilder.reflectionEquals(this, obj);
	}
}

pom.xml

<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">

	<modelVersion>4.0.0</modelVersion>
	<groupId>com.dkstudio</groupId>
	<artifactId>snippets</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>HashCodeEqualsToStringSnippets</name>
	<description>Lang provides a host of helper utilities for the java.lang API, 
	notably String manipulation methods, basic numerical methods, object reflection,
	 concurrency, creation and serialization and System properties.
	 Additionally it contains basic enhancements to java.util.Date and a series of 
	 utilities dedicated to help with building methods, such as hashCode, toString 
	 and equals.</description>

	<developers>
		<developer>
			<id>delfour.k</id>
			<name>Kevin DELFOUR</name>
			<email>delfour.k@gmail.com</email>
			<organization>DK</organization>
			<organizationUrl>http://kevin.delfour.eu</organizationUrl>
		</developer>
	</developers>

	<organization>
		<name>DK</name>
		<url>http://kevin.delfour.eu</url>
	</organization>

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<project.build.sourceVersion>1.7</project.build.sourceVersion>
	</properties>

	<dependencies>
		<dependency>
			<groupId>org.apache.commons</groupId>
			<artifactId>commons-lang3</artifactId>
			<version>3.3.2</version>
		</dependency>
	</dependencies>

</project>