rocket.java

java设计模式源码

package com.oozinoz.firework;

/*
 * Copyright (c) 2001, 2005. Steven J. Metsker.
 * 
 * Steve Metsker makes no representations or warranties about
 * the fitness of this software for any particular purpose, 
 * including the implied warranty of merchantability.
 *
 * Please use this software as you wish with the sole
 * restriction that you may not claim that you wrote it.
 */

import com.oozinoz.utility.*;

/**
 * A self-propelled firework.
 */
public class Rocket extends Firework {
    private double apogee;

    private double thrust;

    /**
     * Allow creation of empty objects to support reconstruction from persistent
     * store.
     */
    public Rocket() {
    }

    /**
     * Create a rocket with all its expected properties. See the superclass for
     * descriptions of other parameters
     * 
     * @param apogee
     *            The height (in meters) that the rocket is expected to reach
     * @param thrust
     *            The rated thrust (or force, in newtons) of this rocket
     */
    public Rocket(String name, double mass, Dollars price, double apogee,
            double thrust) {
        super(name, mass, price);
        setApogee(apogee);
        setThrust(thrust);
    }

    /**
     * The height (in meters) that the rocket is expected to reach.
     */
    public double getApogee() {
        return apogee;
    }

    public void setApogee(double value) {
        apogee = value;
    }

    /**
     * The rated thrust (or force, in newtons) of this rocket.
     */
    public double getThrust() {
        return thrust;
    }

    public void setThrust(double value) {
        thrust = value;
    }
}