001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 package org.apache.hadoop.mapred.join; 019 020 import org.apache.hadoop.classification.InterfaceAudience; 021 import org.apache.hadoop.classification.InterfaceStability; 022 import org.apache.hadoop.io.Writable; 023 024 /** 025 * This class provides an implementation of ResetableIterator. This 026 * implementation uses a byte array to store elements added to it. 027 */ 028 @InterfaceAudience.Public 029 @InterfaceStability.Stable 030 public class StreamBackedIterator<X extends Writable> 031 extends org.apache.hadoop.mapreduce.lib.join.StreamBackedIterator<X> 032 implements ResetableIterator<X> { 033 }