| /* | |
| * Copyright (c) 2005, 2017, Werner Keil and others. | |
| * All rights reserved. This program and the accompanying materials | |
| * are made available under the terms of the Eclipse Public License v1.0 | |
| * which accompanies this distribution, and is available at | |
| * http://www.eclipse.org/legal/epl-v10.html | |
| * | |
| * Contributors: | |
| * Werner Keil - initial API and implementation | |
| */ | |
| package org.eclipse.uomo.units.impl; | |
| import java.util.Comparator; | |
| import javax.measure.Quantity; | |
| /** | |
| * Comparator to sort by natural order, looking both the unit and the value. | |
| * | |
| * @author <a href="mailto:werner@uom.technology">Werner Keil</a> | |
| * @author <a href="mailto:otaviopolianasantana@gmail.com">Otavio Santana</a> | |
| * @version 1.0.1 | |
| * | |
| * @return <b>Given:</b> | |
| * <p> | |
| * Quantity<Time> day = Quantities.getQuantity(1, Units.DAY); | |
| * </p> | |
| * <p> | |
| * Quantity<Time> hours = Quantities.getQuantity(18, Units.HOUR); | |
| * </p> | |
| * <p> | |
| * Quantity<Time> minutes = Quantities.getQuantity(15, Units.HOUR); | |
| * </p> | |
| * <p> | |
| * Quantity<Time> seconds = Quantities.getQuantity(100, Units.HOUR); | |
| * </p> | |
| * will return: seconds, minutes, hours, day | |
| * @since 0.7 | |
| */ | |
| public class NaturalOrder<T extends Quantity<T>> implements Comparator<Quantity<T>> { | |
| @Override | |
| public int compare(Quantity<T> q1, Quantity<T> q2) { | |
| if (q1.getUnit().equals(q2.getUnit())) { | |
| return Double.compare(q1.getValue().doubleValue(), q2.getValue().doubleValue()); | |
| } | |
| return Double.compare(q1.getValue().doubleValue(), q2.to(q1.getUnit()).getValue().doubleValue()); | |
| } | |
| } |