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 <pre><span class="source-line-no">001</span><span id="line-1">/*</span>
 <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span>
 <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements.  See the NOTICE file</span>
 <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span>
 <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership.  The ASF licenses this file</span>
 <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span>
 <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span>
 <span class="source-line-no">008</span><span id="line-8"> * with the License.  You may obtain a copy of the License at</span>
 <span class="source-line-no">009</span><span id="line-9"> *</span>
 <span class="source-line-no">010</span><span id="line-10"> *     http://www.apache.org/licenses/LICENSE-2.0</span>
 <span class="source-line-no">011</span><span id="line-11"> *</span>
 <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span>
 <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span>
 <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
 <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span>
 <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span>
 <span class="source-line-no">017</span><span id="line-17"> */</span>
 <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase;</span>
 <span class="source-line-no">019</span><span id="line-19"></span>
 <span class="source-line-no">020</span><span id="line-20">import java.nio.ByteBuffer;</span>
 <span class="source-line-no">021</span><span id="line-21">import org.apache.hadoop.hbase.util.Bytes;</span>
 <span class="source-line-no">022</span><span id="line-22">import org.apache.yetus.audience.InterfaceAudience;</span>
 <span class="source-line-no">023</span><span id="line-23"></span>
 <span class="source-line-no">024</span><span id="line-24">/**</span>
 <span class="source-line-no">025</span><span id="line-25"> * This Cell is an implementation of {@link ByteBufferExtendedCell} where the data resides in off</span>
 <span class="source-line-no">026</span><span id="line-26"> * heap/ on heap ByteBuffer</span>
 <span class="source-line-no">027</span><span id="line-27"> */</span>
 <span class="source-line-no">028</span><span id="line-28">@InterfaceAudience.Private</span>
 <span class="source-line-no">029</span><span id="line-29">public class SizeCachedByteBufferKeyValue extends ByteBufferKeyValue {</span>
 <span class="source-line-no">030</span><span id="line-30"></span>
 <span class="source-line-no">031</span><span id="line-31">  public static final int FIXED_OVERHEAD = Bytes.SIZEOF_SHORT + Bytes.SIZEOF_INT;</span>
 <span class="source-line-no">032</span><span id="line-32">  private short rowLen;</span>
 <span class="source-line-no">033</span><span id="line-33">  private int keyLen;</span>
 <span class="source-line-no">034</span><span id="line-34"></span>
 <span class="source-line-no">035</span><span id="line-35">  public SizeCachedByteBufferKeyValue(ByteBuffer buf, int offset, int length, long seqId,</span>
 <span class="source-line-no">036</span><span id="line-36">    int keyLen) {</span>
 <span class="source-line-no">037</span><span id="line-37">    super(buf, offset, length);</span>
 <span class="source-line-no">038</span><span id="line-38">    // We will read all these cached values at least once. Initialize now itself so that we can</span>
 <span class="source-line-no">039</span><span id="line-39">    // avoid uninitialized checks with every time call</span>
 <span class="source-line-no">040</span><span id="line-40">    this.rowLen = super.getRowLength();</span>
 <span class="source-line-no">041</span><span id="line-41">    this.keyLen = keyLen;</span>
 <span class="source-line-no">042</span><span id="line-42">    setSequenceId(seqId);</span>
 <span class="source-line-no">043</span><span id="line-43">  }</span>
 <span class="source-line-no">044</span><span id="line-44"></span>
 <span class="source-line-no">045</span><span id="line-45">  public SizeCachedByteBufferKeyValue(ByteBuffer buf, int offset, int length, long seqId,</span>
 <span class="source-line-no">046</span><span id="line-46">    int keyLen, short rowLen) {</span>
 <span class="source-line-no">047</span><span id="line-47">    super(buf, offset, length);</span>
 <span class="source-line-no">048</span><span id="line-48">    // We will read all these cached values at least once. Initialize now itself so that we can</span>
 <span class="source-line-no">049</span><span id="line-49">    // avoid uninitialized checks with every time call</span>
 <span class="source-line-no">050</span><span id="line-50">    this.rowLen = rowLen;</span>
 <span class="source-line-no">051</span><span id="line-51">    this.keyLen = keyLen;</span>
 <span class="source-line-no">052</span><span id="line-52">    setSequenceId(seqId);</span>
 <span class="source-line-no">053</span><span id="line-53">  }</span>
 <span class="source-line-no">054</span><span id="line-54"></span>
 <span class="source-line-no">055</span><span id="line-55">  @Override</span>
 <span class="source-line-no">056</span><span id="line-56">  public short getRowLength() {</span>
 <span class="source-line-no">057</span><span id="line-57">    return rowLen;</span>
 <span class="source-line-no">058</span><span id="line-58">  }</span>
 <span class="source-line-no">059</span><span id="line-59"></span>
 <span class="source-line-no">060</span><span id="line-60">  @Override</span>
 <span class="source-line-no">061</span><span id="line-61">  public int getKeyLength() {</span>
 <span class="source-line-no">062</span><span id="line-62">    return this.keyLen;</span>
 <span class="source-line-no">063</span><span id="line-63">  }</span>
 <span class="source-line-no">064</span><span id="line-64"></span>
 <span class="source-line-no">065</span><span id="line-65">  @Override</span>
 <span class="source-line-no">066</span><span id="line-66">  public long heapSize() {</span>
 <span class="source-line-no">067</span><span id="line-67">    return super.heapSize() + FIXED_OVERHEAD;</span>
 <span class="source-line-no">068</span><span id="line-68">  }</span>
 <span class="source-line-no">069</span><span id="line-69"></span>
 <span class="source-line-no">070</span><span id="line-70">  /**</span>
 <span class="source-line-no">071</span><span id="line-71">   * Override by just returning the length for saving cost of method dispatching. If not, it will</span>
 <span class="source-line-no">072</span><span id="line-72">   * call {@link ExtendedCell#getSerializedSize()} firstly, then forward to</span>
 <span class="source-line-no">073</span><span id="line-73">   * {@link SizeCachedKeyValue#getSerializedSize(boolean)}. (See HBASE-21657)</span>
 <span class="source-line-no">074</span><span id="line-74">   */</span>
 <span class="source-line-no">075</span><span id="line-75">  @Override</span>
 <span class="source-line-no">076</span><span id="line-76">  public int getSerializedSize() {</span>
 <span class="source-line-no">077</span><span id="line-77">    return this.length;</span>
 <span class="source-line-no">078</span><span id="line-78">  }</span>
 <span class="source-line-no">079</span><span id="line-79"></span>
 <span class="source-line-no">080</span><span id="line-80">  @Override</span>
 <span class="source-line-no">081</span><span id="line-81">  public boolean equals(Object other) {</span>
 <span class="source-line-no">082</span><span id="line-82">    return super.equals(other);</span>
 <span class="source-line-no">083</span><span id="line-83">  }</span>
 <span class="source-line-no">084</span><span id="line-84"></span>
 <span class="source-line-no">085</span><span id="line-85">  @Override</span>
 <span class="source-line-no">086</span><span id="line-86">  public int hashCode() {</span>
 <span class="source-line-no">087</span><span id="line-87">    return super.hashCode();</span>
 <span class="source-line-no">088</span><span id="line-88">  }</span>
 <span class="source-line-no">089</span><span id="line-89">}</span>


 </pre>
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	<pre><span class="source-line-no">001</span><span id="line-1">/*</span>
	<span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span>
	<span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span>
	<span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span>
	<span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span>
	<span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span>
	<span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span>
	<span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span>
	<span class="source-line-no">009</span><span id="line-9"> *</span>
	<span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span>
	<span class="source-line-no">011</span><span id="line-11"> *</span>
	<span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span>
	<span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span>
	<span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span>
	<span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span>
	<span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span>
	<span class="source-line-no">017</span><span id="line-17"> */</span>
	<span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase;</span>
	<span class="source-line-no">019</span><span id="line-19"></span>
	<span class="source-line-no">020</span><span id="line-20">import java.nio.ByteBuffer;</span>
	<span class="source-line-no">021</span><span id="line-21">import org.apache.hadoop.hbase.util.Bytes;</span>
	<span class="source-line-no">022</span><span id="line-22">import org.apache.yetus.audience.InterfaceAudience;</span>
	<span class="source-line-no">023</span><span id="line-23"></span>
	<span class="source-line-no">024</span><span id="line-24">/**</span>
	<span class="source-line-no">025</span><span id="line-25"> * This Cell is an implementation of {@link ByteBufferExtendedCell} where the data resides in off</span>
	<span class="source-line-no">026</span><span id="line-26"> * heap/ on heap ByteBuffer</span>
	<span class="source-line-no">027</span><span id="line-27"> */</span>
	<span class="source-line-no">028</span><span id="line-28">@InterfaceAudience.Private</span>
	<span class="source-line-no">029</span><span id="line-29">public class SizeCachedByteBufferKeyValue extends ByteBufferKeyValue {</span>
	<span class="source-line-no">030</span><span id="line-30"></span>
	<span class="source-line-no">031</span><span id="line-31"> public static final int FIXED_OVERHEAD = Bytes.SIZEOF_SHORT + Bytes.SIZEOF_INT;</span>
	<span class="source-line-no">032</span><span id="line-32"> private short rowLen;</span>
	<span class="source-line-no">033</span><span id="line-33"> private int keyLen;</span>
	<span class="source-line-no">034</span><span id="line-34"></span>
	<span class="source-line-no">035</span><span id="line-35"> public SizeCachedByteBufferKeyValue(ByteBuffer buf, int offset, int length, long seqId,</span>
	<span class="source-line-no">036</span><span id="line-36"> int keyLen) {</span>
	<span class="source-line-no">037</span><span id="line-37"> super(buf, offset, length);</span>
	<span class="source-line-no">038</span><span id="line-38"> // We will read all these cached values at least once. Initialize now itself so that we can</span>
	<span class="source-line-no">039</span><span id="line-39"> // avoid uninitialized checks with every time call</span>
	<span class="source-line-no">040</span><span id="line-40"> this.rowLen = super.getRowLength();</span>
	<span class="source-line-no">041</span><span id="line-41"> this.keyLen = keyLen;</span>
	<span class="source-line-no">042</span><span id="line-42"> setSequenceId(seqId);</span>
	<span class="source-line-no">043</span><span id="line-43"> }</span>
	<span class="source-line-no">044</span><span id="line-44"></span>
	<span class="source-line-no">045</span><span id="line-45"> public SizeCachedByteBufferKeyValue(ByteBuffer buf, int offset, int length, long seqId,</span>
	<span class="source-line-no">046</span><span id="line-46"> int keyLen, short rowLen) {</span>
	<span class="source-line-no">047</span><span id="line-47"> super(buf, offset, length);</span>
	<span class="source-line-no">048</span><span id="line-48"> // We will read all these cached values at least once. Initialize now itself so that we can</span>
	<span class="source-line-no">049</span><span id="line-49"> // avoid uninitialized checks with every time call</span>
	<span class="source-line-no">050</span><span id="line-50"> this.rowLen = rowLen;</span>
	<span class="source-line-no">051</span><span id="line-51"> this.keyLen = keyLen;</span>
	<span class="source-line-no">052</span><span id="line-52"> setSequenceId(seqId);</span>
	<span class="source-line-no">053</span><span id="line-53"> }</span>
	<span class="source-line-no">054</span><span id="line-54"></span>
	<span class="source-line-no">055</span><span id="line-55"> @Override</span>
	<span class="source-line-no">056</span><span id="line-56"> public short getRowLength() {</span>
	<span class="source-line-no">057</span><span id="line-57"> return rowLen;</span>
	<span class="source-line-no">058</span><span id="line-58"> }</span>
	<span class="source-line-no">059</span><span id="line-59"></span>
	<span class="source-line-no">060</span><span id="line-60"> @Override</span>
	<span class="source-line-no">061</span><span id="line-61"> public int getKeyLength() {</span>
	<span class="source-line-no">062</span><span id="line-62"> return this.keyLen;</span>
	<span class="source-line-no">063</span><span id="line-63"> }</span>
	<span class="source-line-no">064</span><span id="line-64"></span>
	<span class="source-line-no">065</span><span id="line-65"> @Override</span>
	<span class="source-line-no">066</span><span id="line-66"> public long heapSize() {</span>
	<span class="source-line-no">067</span><span id="line-67"> return super.heapSize() + FIXED_OVERHEAD;</span>
	<span class="source-line-no">068</span><span id="line-68"> }</span>
	<span class="source-line-no">069</span><span id="line-69"></span>
	<span class="source-line-no">070</span><span id="line-70"> /**</span>
	<span class="source-line-no">071</span><span id="line-71"> * Override by just returning the length for saving cost of method dispatching. If not, it will</span>
	<span class="source-line-no">072</span><span id="line-72"> * call {@link ExtendedCell#getSerializedSize()} firstly, then forward to</span>
	<span class="source-line-no">073</span><span id="line-73"> * {@link SizeCachedKeyValue#getSerializedSize(boolean)}. (See HBASE-21657)</span>
	<span class="source-line-no">074</span><span id="line-74"> */</span>
	<span class="source-line-no">075</span><span id="line-75"> @Override</span>
	<span class="source-line-no">076</span><span id="line-76"> public int getSerializedSize() {</span>
	<span class="source-line-no">077</span><span id="line-77"> return this.length;</span>
	<span class="source-line-no">078</span><span id="line-78"> }</span>
	<span class="source-line-no">079</span><span id="line-79"></span>
	<span class="source-line-no">080</span><span id="line-80"> @Override</span>
	<span class="source-line-no">081</span><span id="line-81"> public boolean equals(Object other) {</span>
	<span class="source-line-no">082</span><span id="line-82"> return super.equals(other);</span>
	<span class="source-line-no">083</span><span id="line-83"> }</span>
	<span class="source-line-no">084</span><span id="line-84"></span>
	<span class="source-line-no">085</span><span id="line-85"> @Override</span>
	<span class="source-line-no">086</span><span id="line-86"> public int hashCode() {</span>
	<span class="source-line-no">087</span><span id="line-87"> return super.hashCode();</span>
	<span class="source-line-no">088</span><span id="line-88"> }</span>
	<span class="source-line-no">089</span><span id="line-89">}</span>




























































	</pre>
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