    001    /*
    002     * Copyright (c) 2007-2014 Concurrent, Inc. All Rights Reserved.
    003     *
    004     * Project and contact information: http://www.cascading.org/
    005     *
    006     * This file is part of the Cascading project.
    007     *
    008     * Licensed under the Apache License, Version 2.0 (the "License");
    009     * you may not use this file except in compliance with the License.
    010     * You may obtain a copy of the License at
    011     *
    012     *     http://www.apache.org/licenses/LICENSE-2.0
    013     *
    014     * Unless required by applicable law or agreed to in writing, software
    015     * distributed under the License is distributed on an "AS IS" BASIS,
    016     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    017     * See the License for the specific language governing permissions and
    018     * limitations under the License.
    019     */
    020
    021    package cascading.tuple.hadoop.util;
    022
    023    import cascading.tuple.io.TuplePair;
    024
    025    /** Class ReverseTuplePairComparator is an implementation of {@link org.apache.hadoop.io.RawComparator}. */
    026    public class ReverseGroupingSortingComparator extends GroupingSortingComparator
    027      {
    028      @Override
    029      public int compare( byte[] b1, int s1, int l1, byte[] b2, int s2, int l2 )
    030        {
    031        return -1 * super.compare( b1, s1, l1, b2, s2, l2 );
    032        }
    033
    034      @Override
    035      public int compare( TuplePair lhs, TuplePair rhs )
    036        {
    037        return super.compare( rhs, lhs );
    038        }
    039      }