/**
* Copyright (C) 2001-2017 by RapidMiner and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapidminer.com
*
* This program is free software: you can redistribute it and/or modify it under the terms of the
* GNU Affero General Public License as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* This program 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
* Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along with this program.
* If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.tools.math.container;
import java.io.Serializable;
import java.util.Comparator;
/**
* This comparator reverses the sort direction for a given comparator.
*
* @author Sebastian Land
* @param <F>
* the type of the comparable
*/
public class ReverseComparator<F> implements Comparator<F>, Serializable {
private static final long serialVersionUID = 3141613972925245131L;
private Comparator<? super F> comparator;
public ReverseComparator(Comparator<? super F> comp) {
this.comparator = comp;
}
@Override
public int compare(F o1, F o2) {
return -comparator.compare(o1, o2);
}
}