Java tutorial
/* * Copyright 2016 Jasha Joachimsthal * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package eu.jasha.demo.sbtfragments; import org.apache.commons.lang3.builder.EqualsBuilder; import org.apache.commons.lang3.builder.HashCodeBuilder; import java.io.Serializable; public class City implements Serializable { private static final long serialVersionUID = -7041939576079911914L; private String id; private String name; private int foundedIn; private int population; public City() { } public City(String id, String name, int foundedIn, int population) { this(); this.id = id; this.name = name; this.foundedIn = foundedIn; this.population = population; } public void setId(String id) { this.id = id; } public String getId() { return id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getFoundedIn() { return foundedIn; } public void setFoundedIn(int foundedIn) { this.foundedIn = foundedIn; } public int getPopulation() { return population; } public void setPopulation(int population) { this.population = population; } @Override public boolean equals(Object obj) { if (obj == null) { return false; } if (obj == this) { return true; } if (obj.getClass() != getClass()) { return false; } City rhs = (City) obj; return new EqualsBuilder().append(this.id, rhs.id).append(this.name, rhs.name) .append(this.foundedIn, rhs.foundedIn).append(this.population, rhs.population).isEquals(); } @Override public int hashCode() { return new HashCodeBuilder().append(id).toHashCode(); } }