IdentifiableComparator.java

/*
 * Copyright (C) 2011 Jason von Nieda <jason@vonnieda.org>
 * 
 * This file is part of OpenPnP.
 * 
 * OpenPnP is free software: you can redistribute it and/or modify it under the terms of the GNU
 * General Public License as published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * OpenPnP 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 General
 * Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License along with OpenPnP. If not, see
 * <http://www.gnu.org/licenses/>.
 * 
 * For more information about OpenPnP visit http://openpnp.org
 */

package org.openpnp.gui.support;

import java.util.Comparator;

import org.openpnp.model.Identifiable;

public class IdentifiableComparator<T extends Identifiable> implements Comparator<T> {
    public int compare(T o1, T o2) {
        if (o1 == null) {
            return 1;
        }
        else if (o2 == null) {
            return -1;
        }
        else {
            return o1.getId().compareTo(o2.getId());
        }
    }
}