001/**
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements.  See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership.  The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License.  You may obtain a copy of the License at
010 *
011 *     http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 */
019package org.apache.hadoop.hbase.mapred;
020
021import org.apache.yetus.audience.InterfaceAudience;
022import org.apache.hadoop.hbase.client.Result;
023import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
024import org.apache.hadoop.io.WritableComparable;
025import org.apache.hadoop.mapred.Mapper;
026
027/**
028 * Scan an HBase table to sort by a specified sort column.
029 * If the column does not exist, the record is not passed to Reduce.
030 *
031 * @param <K> WritableComparable key class
032 * @param <V> Writable value class
033 */
034@InterfaceAudience.Public
035public interface TableMap<K extends WritableComparable<? super K>, V>
036extends Mapper<ImmutableBytesWritable, Result, K, V> {
037
038}