KeyValuePairComparator.java

/**
 * Copyright 2008 - CommonCrawl Foundation
 * 
 *    This program 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.
 *
 *    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 General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 **/

package org.commoncrawl.hadoop.mergeutils;


import org.apache.hadoop.io.Writable;
import org.apache.hadoop.io.WritableComparable;

/**
 * The basic Comparator interface. Note: You can compare on Typed keys and/or
 * values
 * 
 * @author rana
 * 
 * @param <KeyType>
 * @param <ValueType>
 */
public interface KeyValuePairComparator<KeyType extends WritableComparable, ValueType extends Writable> {

  int compare(KeyType key1, ValueType value1, KeyType key2, ValueType value2);

}