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 */
018package org.apache.hadoop.hbase.regionserver;
019
020import java.nio.ByteBuffer;
021import org.apache.hadoop.hbase.NoTagsByteBufferKeyValue;
022import org.apache.hadoop.hbase.util.ByteBufferUtils;
023import org.apache.yetus.audience.InterfaceAudience;
024
025/**
026 * ByteBuffer based cell which has the chunkid at the 0th offset and with no tags
027 * @see MemStoreLAB
028 */
029@InterfaceAudience.Private
030public class NoTagByteBufferChunkKeyValue extends NoTagsByteBufferKeyValue {
031
032  public NoTagByteBufferChunkKeyValue(ByteBuffer buf, int offset, int length) {
033    super(buf, offset, length);
034  }
035
036  public NoTagByteBufferChunkKeyValue(ByteBuffer buf, int offset, int length, long seqId) {
037    super(buf, offset, length, seqId);
038  }
039
040  @Override
041  public int getChunkId() {
042    // The chunkId is embedded at the 0th offset of the bytebuffer
043    return ByteBufferUtils.toInt(buf, 0);
044  }
045
046}