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; 019 020import java.nio.ByteBuffer; 021import org.apache.hadoop.hbase.util.ByteBufferUtils; 022import org.apache.yetus.audience.InterfaceAudience; 023 024/** 025 * An extension of the ByteBufferKeyValue where the tags length is always 0 026 */ 027@InterfaceAudience.Private 028public class NoTagsByteBufferKeyValue extends ByteBufferKeyValue { 029 030 public NoTagsByteBufferKeyValue(ByteBuffer buf, int offset, int length) { 031 super(buf, offset, length); 032 } 033 034 public NoTagsByteBufferKeyValue(ByteBuffer buf, int offset, int length, long seqId) { 035 super(buf, offset, length, seqId); 036 } 037 038 @Override 039 public byte[] getTagsArray() { 040 return HConstants.EMPTY_BYTE_ARRAY; 041 } 042 043 @Override 044 public int getTagsLength() { 045 return 0; 046 } 047 048 @Override 049 public int getSerializedSize(boolean withTags) { 050 return this.length; 051 } 052 053 @Override 054 public ExtendedCell deepClone() { 055 byte[] copy = new byte[this.length]; 056 ByteBufferUtils.copyFromBufferToArray(copy, this.buf, this.offset, 0, this.length); 057 KeyValue kv = new NoTagsKeyValue(copy, 0, copy.length); 058 kv.setSequenceId(this.getSequenceId()); 059 return kv; 060 } 061}