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An open source implementation of the Distributed Interactive Simulation (DIS) IEEE-1278 protocol

There is a newer version: 5.8


package edu.nps.moves.examples;

import edu.nps.moves.dis.Pdu;
import java.util.*;

/**
 * A comparator that is used by the java util classes for sorting. This
 * sorts members of a collection by class name.
 * 
 * Used like so:
 * 
 * Collections.sort(aList, new ClassNameComparator());
 *
 * @author DMcG
 * @version $Id:$
 */
public class ClassNameComparator implements Comparator {

    /**
     * Returns a number less than, equal to, or greater than zero,
     * depending on whether the object is lexically less than, equal to,
     * or greater than the other object.
     * @param object1
     * @param object2
     */
    public int compare(Pdu object1, Pdu object2) {
        return object1.getClass().getName().compareTo(object2.getClass().getName());
    }

    /**
     * Returns true if this comparator is the same class as the comparator passed in.
     * 
     * @param obj
     */
    @Override
    public boolean equals(Object obj) {
        return obj.getClass().equals(this.getClass());
    }

    @Override
    public int hashCode() {
        return 3;
    }
}