001    /** 
002     * 
003     * Copyright 2004 Protique Ltd
004     * 
005     * Licensed under the Apache License, Version 2.0 (the "License"); 
006     * you may not use this file except in compliance with the License. 
007     * You may obtain a copy of the License at 
008     * 
009     * http://www.apache.org/licenses/LICENSE-2.0
010     * 
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS, 
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
014     * See the License for the specific language governing permissions and 
015     * limitations under the License. 
016     * 
017     **/
018    package org.activemq.util;
019    
020    import java.io.Serializable;
021    import java.util.Comparator;
022    
023    /**
024     * A trivial default {@link Comparator} which only works on objects
025     * which are {@link Comparable}
026     *
027     * @version $Revision: 1.1.1.1 $
028     */
029    public class DefaultComparator implements Comparator, Serializable {
030        final static long serialVersionUID = 1L;
031    
032        public int compare(Object o1, Object o2) {
033            Comparable c1 = (Comparable) o1;
034            return c1.compareTo(o2);
035        }
036    }