IndexComparator.java

/* Soot - a J*va Optimization Framework
 * Copyright (C) 2003 Jerome Miecznikowski
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

package soot.dava.toolkits.base.finders;

import java.util.*;

class IndexComparator implements Comparator
{
    public int compare( Object o1, Object o2)
    {
	if (o1 == o2)
	    return 0;
	
	if (o1 instanceof String)
	    return 1;

	if (o2 instanceof String)
	    return -1;

	return ((Integer) o1).intValue() - ((Integer) o2).intValue();
    }

    public boolean equals( Object o)
    {
	return (o instanceof IndexComparator);
    }
}