001    // Copyright 2004, 2005 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry.contrib.table.model.common;
016    
017    import java.util.Comparator;
018    
019    /**
020     * @author mindbridge
021     */
022    public class ReverseComparator implements Comparator
023    {
024    
025        private Comparator m_objComparator;
026    
027        public ReverseComparator(Comparator objComparator)
028        {
029            m_objComparator = objComparator;
030        }
031    
032        /**
033         * @see java.util.Comparator#compare(Object, Object)
034         */
035        public int compare(Object objValue1, Object objValue2)
036        {
037            return -m_objComparator.compare(objValue1, objValue2);
038        }
039    
040    }