Java tutorial
/* Copyright 2010 platers.code 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 com.pc.dailymile.domain; import java.io.Serializable; import org.apache.commons.lang.builder.EqualsBuilder; import org.apache.commons.lang.builder.HashCodeBuilder; import com.pc.dailymile.utils.Units; public class Route implements Comparable<Route>, Serializable { private Long id; private String name; private Distance distance; public Route() { this.distance = new Distance(); } public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public void setDistanceUnits(Units units) { distance.setUnits(units); } public Units getDistanceUnits() { return distance.getUnits(); } public void setDistanceValue(String value) { distance.setValue(value); } public String getDistanceValue() { return distance.getValue(); } @Override public String toString() { return name; } @Override public int hashCode() { return new HashCodeBuilder(17, 37).append(id).append(name).append(distance).toHashCode(); } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; Route other = (Route) obj; return new EqualsBuilder().append(id, other.id).append(name, other.name).append(distance, other.distance) .isEquals(); } public int compareTo(Route o) { int nameVal = o.getName().compareTo(getName()); if (nameVal == 0) { if (this.equals(o)) { // they are truly equal return nameVal; } // use the id as the tie breaker return o.getId().compareTo(getId()); } return nameVal; } }