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Posted to commits@hbase.apache.org by mi...@apache.org on 2016/03/03 18:16:52 UTC
[06/49] hbase-site git commit: Published site at
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/4ce8323f/xref/org/apache/hadoop/hbase/regionserver/ImmutableSegment.html
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<a class="jxr_linenumber" name="18" href="#18">18</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="19" href="#19">19</a> <strong class="jxr_keyword">package</strong> org.apache.hadoop.hbase.regionserver;
<a class="jxr_linenumber" name="20" href="#20">20</a>
-<a class="jxr_linenumber" name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> org.apache.commons.lang.NotImplementedException;
-<a class="jxr_linenumber" name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.Cell;
-<a class="jxr_linenumber" name="23" href="#23">23</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.classification.InterfaceAudience;
-<a class="jxr_linenumber" name="24" href="#24">24</a>
-<a class="jxr_linenumber" name="25" href="#25">25</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="26" href="#26">26</a> <em class="jxr_javadoccomment"> * ImmutableSegment is an abstract class that extends the API supported by a {@link Segment},</em>
-<a class="jxr_linenumber" name="27" href="#27">27</a> <em class="jxr_javadoccomment"> * and is not needed for a {@link MutableSegment}. Specifically, the method</em>
-<a class="jxr_linenumber" name="28" href="#28">28</a> <em class="jxr_javadoccomment"> * {@link ImmutableSegment#getKeyValueScanner()} builds a special scanner for the</em>
-<a class="jxr_linenumber" name="29" href="#29">29</a> <em class="jxr_javadoccomment"> * {@link MemStoreSnapshot} object.</em>
-<a class="jxr_linenumber" name="30" href="#30">30</a> <em class="jxr_javadoccomment"> * In addition, this class overrides methods that are not likely to be supported by an immutable</em>
-<a class="jxr_linenumber" name="31" href="#31">31</a> <em class="jxr_javadoccomment"> * segment, e.g. {@link Segment#rollback(Cell)} and {@link Segment#getCellSet()}, which</em>
-<a class="jxr_linenumber" name="32" href="#32">32</a> <em class="jxr_javadoccomment"> * can be very inefficient.</em>
-<a class="jxr_linenumber" name="33" href="#33">33</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="34" href="#34">34</a> @InterfaceAudience.Private
-<a class="jxr_linenumber" name="35" href="#35">35</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegment.html">ImmutableSegment</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html">Segment</a> {
+<a class="jxr_linenumber" name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.classification.InterfaceAudience;
+<a class="jxr_linenumber" name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.util.CollectionBackedScanner;
+<a class="jxr_linenumber" name="23" href="#23">23</a>
+<a class="jxr_linenumber" name="24" href="#24">24</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="25" href="#25">25</a> <em class="jxr_javadoccomment"> * ImmutableSegment is an abstract class that extends the API supported by a {@link Segment},</em>
+<a class="jxr_linenumber" name="26" href="#26">26</a> <em class="jxr_javadoccomment"> * and is not needed for a {@link MutableSegment}. Specifically, the method</em>
+<a class="jxr_linenumber" name="27" href="#27">27</a> <em class="jxr_javadoccomment"> * {@link ImmutableSegment#getKeyValueScanner()} builds a special scanner for the</em>
+<a class="jxr_linenumber" name="28" href="#28">28</a> <em class="jxr_javadoccomment"> * {@link MemStoreSnapshot} object.</em>
+<a class="jxr_linenumber" name="29" href="#29">29</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="30" href="#30">30</a> @InterfaceAudience.Private
+<a class="jxr_linenumber" name="31" href="#31">31</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegment.html">ImmutableSegment</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html">Segment</a> {
+<a class="jxr_linenumber" name="32" href="#32">32</a>
+<a class="jxr_linenumber" name="33" href="#33">33</a> <strong class="jxr_keyword">protected</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegment.html">ImmutableSegment</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html">Segment</a> segment) {
+<a class="jxr_linenumber" name="34" href="#34">34</a> <strong class="jxr_keyword">super</strong>(segment);
+<a class="jxr_linenumber" name="35" href="#35">35</a> }
<a class="jxr_linenumber" name="36" href="#36">36</a>
-<a class="jxr_linenumber" name="37" href="#37">37</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegment.html">ImmutableSegment</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html">Segment</a> segment) {
-<a class="jxr_linenumber" name="38" href="#38">38</a> <strong class="jxr_keyword">super</strong>(segment);
-<a class="jxr_linenumber" name="39" href="#39">39</a> }
-<a class="jxr_linenumber" name="40" href="#40">40</a>
-<a class="jxr_linenumber" name="41" href="#41">41</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="42" href="#42">42</a> <em class="jxr_javadoccomment"> * Removes the given cell from this segment.</em>
-<a class="jxr_linenumber" name="43" href="#43">43</a> <em class="jxr_javadoccomment"> * By default immutable store segment can not rollback</em>
-<a class="jxr_linenumber" name="44" href="#44">44</a> <em class="jxr_javadoccomment"> * It may be invoked by tests in specific cases where it is known to be supported {@link</em>
-<a class="jxr_linenumber" name="45" href="#45">45</a> <em class="jxr_javadoccomment"> * ImmutableSegmentAdapter}</em>
-<a class="jxr_linenumber" name="46" href="#46">46</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="47" href="#47">47</a> @Override
-<a class="jxr_linenumber" name="48" href="#48">48</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> rollback(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) {
-<a class="jxr_linenumber" name="49" href="#49">49</a> <strong class="jxr_keyword">return</strong> 0;
-<a class="jxr_linenumber" name="50" href="#50">50</a> }
-<a class="jxr_linenumber" name="51" href="#51">51</a>
-<a class="jxr_linenumber" name="52" href="#52">52</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="53" href="#53">53</a> <em class="jxr_javadoccomment"> * Returns a set of all the cells in the segment.</em>
-<a class="jxr_linenumber" name="54" href="#54">54</a> <em class="jxr_javadoccomment"> * The implementation of this method might be very inefficient for some immutable segments</em>
-<a class="jxr_linenumber" name="55" href="#55">55</a> <em class="jxr_javadoccomment"> * that do not maintain a cell set. Therefore by default this method is not supported.</em>
-<a class="jxr_linenumber" name="56" href="#56">56</a> <em class="jxr_javadoccomment"> * It may be invoked by tests in specific cases where it is known to be supported {@link</em>
-<a class="jxr_linenumber" name="57" href="#57">57</a> <em class="jxr_javadoccomment"> * ImmutableSegmentAdapter}</em>
-<a class="jxr_linenumber" name="58" href="#58">58</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="59" href="#59">59</a> @Override
-<a class="jxr_linenumber" name="60" href="#60">60</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/CellSet.html">CellSet</a> getCellSet() {
-<a class="jxr_linenumber" name="61" href="#61">61</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NotImplementedException(<span class="jxr_string">"Immutable Segment does not support this operation by "</span> +
-<a class="jxr_linenumber" name="62" href="#62">62</a> <span class="jxr_string">"default"</span>);
-<a class="jxr_linenumber" name="63" href="#63">63</a> }
-<a class="jxr_linenumber" name="64" href="#64">64</a>
-<a class="jxr_linenumber" name="65" href="#65">65</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="66" href="#66">66</a> <em class="jxr_javadoccomment"> * Builds a special scanner for the MemStoreSnapshot object that may be different than the</em>
-<a class="jxr_linenumber" name="67" href="#67">67</a> <em class="jxr_javadoccomment"> * general segment scanner.</em>
-<a class="jxr_linenumber" name="68" href="#68">68</a> <em class="jxr_javadoccomment"> * @return a special scanner for the MemStoreSnapshot object</em>
-<a class="jxr_linenumber" name="69" href="#69">69</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="70" href="#70">70</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html">KeyValueScanner</a> getKeyValueScanner();
-<a class="jxr_linenumber" name="71" href="#71">71</a>
-<a class="jxr_linenumber" name="72" href="#72">72</a> }
+<a class="jxr_linenumber" name="37" href="#37">37</a> <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="38" href="#38">38</a> <em class="jxr_javadoccomment"> * Builds a special scanner for the MemStoreSnapshot object that is different than the</em>
+<a class="jxr_linenumber" name="39" href="#39">39</a> <em class="jxr_javadoccomment"> * general segment scanner.</em>
+<a class="jxr_linenumber" name="40" href="#40">40</a> <em class="jxr_javadoccomment"> * @return a special scanner for the MemStoreSnapshot object</em>
+<a class="jxr_linenumber" name="41" href="#41">41</a> <em class="jxr_javadoccomment"> */</em>
+<a class="jxr_linenumber" name="42" href="#42">42</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html">KeyValueScanner</a> getKeyValueScanner() {
+<a class="jxr_linenumber" name="43" href="#43">43</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/util/CollectionBackedScanner.html">CollectionBackedScanner</a>(getCellSet(), getComparator());
+<a class="jxr_linenumber" name="44" href="#44">44</a> }
+<a class="jxr_linenumber" name="45" href="#45">45</a>
+<a class="jxr_linenumber" name="46" href="#46">46</a> }
</pre>
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/4ce8323f/xref/org/apache/hadoop/hbase/regionserver/ImmutableSegmentAdapter.html
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-<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
-<title>ImmutableSegmentAdapter xref</title>
-<link type="text/css" rel="stylesheet" href="../../../../../stylesheet.css" />
-</head>
-<body>
-<div id="overview"><a href="../../../../../../devapidocs/org/apache/hadoop/hbase/regionserver/ImmutableSegmentAdapter.html">View Javadoc</a></div><pre>
-
-<a class="jxr_linenumber" name="1" href="#1">1</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="2" href="#2">2</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="3" href="#3">3</a> <em class="jxr_javadoccomment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
-<a class="jxr_linenumber" name="4" href="#4">4</a> <em class="jxr_javadoccomment"> * or more contributor license agreements. See the NOTICE file</em>
-<a class="jxr_linenumber" name="5" href="#5">5</a> <em class="jxr_javadoccomment"> * distributed with this work for additional information</em>
-<a class="jxr_linenumber" name="6" href="#6">6</a> <em class="jxr_javadoccomment"> * regarding copyright ownership. The ASF licenses this file</em>
-<a class="jxr_linenumber" name="7" href="#7">7</a> <em class="jxr_javadoccomment"> * to you under the Apache License, Version 2.0 (the</em>
-<a class="jxr_linenumber" name="8" href="#8">8</a> <em class="jxr_javadoccomment"> * "License"); you may not use this file except in compliance</em>
-<a class="jxr_linenumber" name="9" href="#9">9</a> <em class="jxr_javadoccomment"> * with the License. You may obtain a copy of the License at</em>
-<a class="jxr_linenumber" name="10" href="#10">10</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="11" href="#11">11</a> <em class="jxr_javadoccomment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
-<a class="jxr_linenumber" name="12" href="#12">12</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="13" href="#13">13</a> <em class="jxr_javadoccomment"> * Unless required by applicable law or agreed to in writing, software</em>
-<a class="jxr_linenumber" name="14" href="#14">14</a> <em class="jxr_javadoccomment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
-<a class="jxr_linenumber" name="15" href="#15">15</a> <em class="jxr_javadoccomment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
-<a class="jxr_linenumber" name="16" href="#16">16</a> <em class="jxr_javadoccomment"> * See the License for the specific language governing permissions and</em>
-<a class="jxr_linenumber" name="17" href="#17">17</a> <em class="jxr_javadoccomment"> * limitations under the License.</em>
-<a class="jxr_linenumber" name="18" href="#18">18</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="19" href="#19">19</a> <strong class="jxr_keyword">package</strong> org.apache.hadoop.hbase.regionserver;
-<a class="jxr_linenumber" name="20" href="#20">20</a>
-<a class="jxr_linenumber" name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> org.apache.commons.logging.Log;
-<a class="jxr_linenumber" name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.Cell;
-<a class="jxr_linenumber" name="23" href="#23">23</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.classification.InterfaceAudience;
-<a class="jxr_linenumber" name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.util.CollectionBackedScanner;
-<a class="jxr_linenumber" name="25" href="#25">25</a>
-<a class="jxr_linenumber" name="26" href="#26">26</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="27" href="#27">27</a> <em class="jxr_javadoccomment"> * This segment is adapting a mutable segment making it into an immutable segment.</em>
-<a class="jxr_linenumber" name="28" href="#28">28</a> <em class="jxr_javadoccomment"> * This is used when a mutable segment is moved to being a snapshot or pushed into a compaction</em>
-<a class="jxr_linenumber" name="29" href="#29">29</a> <em class="jxr_javadoccomment"> * pipeline, that consists only of immutable segments.</em>
-<a class="jxr_linenumber" name="30" href="#30">30</a> <em class="jxr_javadoccomment"> * The compaction may generate different type of immutable segment</em>
-<a class="jxr_linenumber" name="31" href="#31">31</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="32" href="#32">32</a> @InterfaceAudience.Private
-<a class="jxr_linenumber" name="33" href="#33">33</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegmentAdapter.html">ImmutableSegmentAdapter</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegment.html">ImmutableSegment</a> {
-<a class="jxr_linenumber" name="34" href="#34">34</a>
-<a class="jxr_linenumber" name="35" href="#35">35</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">private</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html">MutableSegment</a> adaptee;
-<a class="jxr_linenumber" name="36" href="#36">36</a>
-<a class="jxr_linenumber" name="37" href="#37">37</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegmentAdapter.html">ImmutableSegmentAdapter</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html">MutableSegment</a> segment) {
-<a class="jxr_linenumber" name="38" href="#38">38</a> <strong class="jxr_keyword">super</strong>(segment);
-<a class="jxr_linenumber" name="39" href="#39">39</a> <strong class="jxr_keyword">this</strong>.adaptee = segment;
-<a class="jxr_linenumber" name="40" href="#40">40</a> }
-<a class="jxr_linenumber" name="41" href="#41">41</a>
-<a class="jxr_linenumber" name="42" href="#42">42</a> @Override
-<a class="jxr_linenumber" name="43" href="#43">43</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html">KeyValueScanner</a> getKeyValueScanner() {
-<a class="jxr_linenumber" name="44" href="#44">44</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/util/CollectionBackedScanner.html">CollectionBackedScanner</a>(adaptee.getCellSet(), adaptee.getComparator());
-<a class="jxr_linenumber" name="45" href="#45">45</a> }
-<a class="jxr_linenumber" name="46" href="#46">46</a>
-<a class="jxr_linenumber" name="47" href="#47">47</a> @Override
-<a class="jxr_linenumber" name="48" href="#48">48</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html">SegmentScanner</a> getSegmentScanner(<strong class="jxr_keyword">long</strong> readPoint) {
-<a class="jxr_linenumber" name="49" href="#49">49</a> <strong class="jxr_keyword">return</strong> adaptee.getSegmentScanner(readPoint);
-<a class="jxr_linenumber" name="50" href="#50">50</a> }
-<a class="jxr_linenumber" name="51" href="#51">51</a>
-<a class="jxr_linenumber" name="52" href="#52">52</a> @Override
-<a class="jxr_linenumber" name="53" href="#53">53</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isEmpty() {
-<a class="jxr_linenumber" name="54" href="#54">54</a> <strong class="jxr_keyword">return</strong> adaptee.isEmpty();
-<a class="jxr_linenumber" name="55" href="#55">55</a> }
-<a class="jxr_linenumber" name="56" href="#56">56</a>
-<a class="jxr_linenumber" name="57" href="#57">57</a> @Override
-<a class="jxr_linenumber" name="58" href="#58">58</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getCellsCount() {
-<a class="jxr_linenumber" name="59" href="#59">59</a> <strong class="jxr_keyword">return</strong> adaptee.getCellsCount();
-<a class="jxr_linenumber" name="60" href="#60">60</a> }
-<a class="jxr_linenumber" name="61" href="#61">61</a>
-<a class="jxr_linenumber" name="62" href="#62">62</a> @Override
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-<a class="jxr_linenumber" name="64" href="#64">64</a> <strong class="jxr_keyword">return</strong> adaptee.add(cell);
-<a class="jxr_linenumber" name="65" href="#65">65</a> }
-<a class="jxr_linenumber" name="66" href="#66">66</a>
-<a class="jxr_linenumber" name="67" href="#67">67</a> @Override
-<a class="jxr_linenumber" name="68" href="#68">68</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> getFirstAfter(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) {
-<a class="jxr_linenumber" name="69" href="#69">69</a> <strong class="jxr_keyword">return</strong> adaptee.getFirstAfter(cell);
-<a class="jxr_linenumber" name="70" href="#70">70</a> }
-<a class="jxr_linenumber" name="71" href="#71">71</a>
-<a class="jxr_linenumber" name="72" href="#72">72</a> @Override
-<a class="jxr_linenumber" name="73" href="#73">73</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> close() {
-<a class="jxr_linenumber" name="74" href="#74">74</a> adaptee.close();
-<a class="jxr_linenumber" name="75" href="#75">75</a> }
-<a class="jxr_linenumber" name="76" href="#76">76</a>
-<a class="jxr_linenumber" name="77" href="#77">77</a> @Override
-<a class="jxr_linenumber" name="78" href="#78">78</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> maybeCloneWithAllocator(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) {
-<a class="jxr_linenumber" name="79" href="#79">79</a> <strong class="jxr_keyword">return</strong> adaptee.maybeCloneWithAllocator(cell);
-<a class="jxr_linenumber" name="80" href="#80">80</a> }
-<a class="jxr_linenumber" name="81" href="#81">81</a>
-<a class="jxr_linenumber" name="82" href="#82">82</a> @Override
-<a class="jxr_linenumber" name="83" href="#83">83</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html">Segment</a> setSize(<strong class="jxr_keyword">long</strong> size) {
-<a class="jxr_linenumber" name="84" href="#84">84</a> adaptee.setSize(size);
-<a class="jxr_linenumber" name="85" href="#85">85</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>;
-<a class="jxr_linenumber" name="86" href="#86">86</a> }
-<a class="jxr_linenumber" name="87" href="#87">87</a>
-<a class="jxr_linenumber" name="88" href="#88">88</a> @Override
-<a class="jxr_linenumber" name="89" href="#89">89</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getSize() {
-<a class="jxr_linenumber" name="90" href="#90">90</a> <strong class="jxr_keyword">return</strong> adaptee.getSize();
-<a class="jxr_linenumber" name="91" href="#91">91</a> }
-<a class="jxr_linenumber" name="92" href="#92">92</a>
-<a class="jxr_linenumber" name="93" href="#93">93</a> @Override
-<a class="jxr_linenumber" name="94" href="#94">94</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> rollback(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) {
-<a class="jxr_linenumber" name="95" href="#95">95</a> <strong class="jxr_keyword">return</strong> adaptee.rollback(cell);
-<a class="jxr_linenumber" name="96" href="#96">96</a> }
-<a class="jxr_linenumber" name="97" href="#97">97</a>
-<a class="jxr_linenumber" name="98" href="#98">98</a> @Override
-<a class="jxr_linenumber" name="99" href="#99">99</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/CellSet.html">CellSet</a> getCellSet() {
-<a class="jxr_linenumber" name="100" href="#100">100</a> <strong class="jxr_keyword">return</strong> adaptee.getCellSet();
-<a class="jxr_linenumber" name="101" href="#101">101</a> }
-<a class="jxr_linenumber" name="102" href="#102">102</a>
-<a class="jxr_linenumber" name="103" href="#103">103</a> @Override
-<a class="jxr_linenumber" name="104" href="#104">104</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> dump(Log log) {
-<a class="jxr_linenumber" name="105" href="#105">105</a> adaptee.dump(log);
-<a class="jxr_linenumber" name="106" href="#106">106</a> }
-<a class="jxr_linenumber" name="107" href="#107">107</a> }
-</pre>
-<hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body>
-</html>
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-<div id="overview"><a href="../../../../../../devapidocs/org/apache/hadoop/hbase/regionserver/MutableCellSetSegment.html">View Javadoc</a></div><pre>
-
-<a class="jxr_linenumber" name="1" href="#1">1</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="2" href="#2">2</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="3" href="#3">3</a> <em class="jxr_javadoccomment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
-<a class="jxr_linenumber" name="4" href="#4">4</a> <em class="jxr_javadoccomment"> * or more contributor license agreements. See the NOTICE file</em>
-<a class="jxr_linenumber" name="5" href="#5">5</a> <em class="jxr_javadoccomment"> * distributed with this work for additional information</em>
-<a class="jxr_linenumber" name="6" href="#6">6</a> <em class="jxr_javadoccomment"> * regarding copyright ownership. The ASF licenses this file</em>
-<a class="jxr_linenumber" name="7" href="#7">7</a> <em class="jxr_javadoccomment"> * to you under the Apache License, Version 2.0 (the</em>
-<a class="jxr_linenumber" name="8" href="#8">8</a> <em class="jxr_javadoccomment"> * "License"); you may not use this file except in compliance</em>
-<a class="jxr_linenumber" name="9" href="#9">9</a> <em class="jxr_javadoccomment"> * with the License. You may obtain a copy of the License at</em>
-<a class="jxr_linenumber" name="10" href="#10">10</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="11" href="#11">11</a> <em class="jxr_javadoccomment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
-<a class="jxr_linenumber" name="12" href="#12">12</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="13" href="#13">13</a> <em class="jxr_javadoccomment"> * Unless required by applicable law or agreed to in writing, software</em>
-<a class="jxr_linenumber" name="14" href="#14">14</a> <em class="jxr_javadoccomment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
-<a class="jxr_linenumber" name="15" href="#15">15</a> <em class="jxr_javadoccomment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
-<a class="jxr_linenumber" name="16" href="#16">16</a> <em class="jxr_javadoccomment"> * See the License for the specific language governing permissions and</em>
-<a class="jxr_linenumber" name="17" href="#17">17</a> <em class="jxr_javadoccomment"> * limitations under the License.</em>
-<a class="jxr_linenumber" name="18" href="#18">18</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="19" href="#19">19</a> <strong class="jxr_keyword">package</strong> org.apache.hadoop.hbase.regionserver;
-<a class="jxr_linenumber" name="20" href="#20">20</a>
-<a class="jxr_linenumber" name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> java.util.Iterator;
-<a class="jxr_linenumber" name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> java.util.SortedSet;
-<a class="jxr_linenumber" name="23" href="#23">23</a>
-<a class="jxr_linenumber" name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> org.apache.commons.logging.Log;
-<a class="jxr_linenumber" name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.Cell;
-<a class="jxr_linenumber" name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.CellComparator;
-<a class="jxr_linenumber" name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.classification.InterfaceAudience;
-<a class="jxr_linenumber" name="28" href="#28">28</a>
-<a class="jxr_linenumber" name="29" href="#29">29</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="30" href="#30">30</a> <em class="jxr_javadoccomment"> * This mutable store segment encapsulates a mutable cell set and its respective memory allocation</em>
-<a class="jxr_linenumber" name="31" href="#31">31</a> <em class="jxr_javadoccomment"> * buffers (MSLAB).</em>
-<a class="jxr_linenumber" name="32" href="#32">32</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="33" href="#33">33</a> @InterfaceAudience.Private
-<a class="jxr_linenumber" name="34" href="#34">34</a> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableCellSetSegment.html">MutableCellSetSegment</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableSegment.html">MutableSegment</a> {
-<a class="jxr_linenumber" name="35" href="#35">35</a>
-<a class="jxr_linenumber" name="36" href="#36">36</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">volatile</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/CellSet.html">CellSet</a> cellSet;
-<a class="jxr_linenumber" name="37" href="#37">37</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/hadoop/hbase/CellComparator.html">CellComparator</a> comparator;
-<a class="jxr_linenumber" name="38" href="#38">38</a>
-<a class="jxr_linenumber" name="39" href="#39">39</a> <em class="jxr_comment">// Instantiate objects only using factory</em>
-<a class="jxr_linenumber" name="40" href="#40">40</a> <a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableCellSetSegment.html">MutableCellSetSegment</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/CellSet.html">CellSet</a> cellSet, <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreLAB.html">MemStoreLAB</a> memStoreLAB, <strong class="jxr_keyword">long</strong> size,
-<a class="jxr_linenumber" name="41" href="#41">41</a> <a href="../../../../../org/apache/hadoop/hbase/CellComparator.html">CellComparator</a> comparator) {
-<a class="jxr_linenumber" name="42" href="#42">42</a> <strong class="jxr_keyword">super</strong>(memStoreLAB, size);
-<a class="jxr_linenumber" name="43" href="#43">43</a> <strong class="jxr_keyword">this</strong>.cellSet = cellSet;
-<a class="jxr_linenumber" name="44" href="#44">44</a> <strong class="jxr_keyword">this</strong>.comparator = comparator;
-<a class="jxr_linenumber" name="45" href="#45">45</a> }
-<a class="jxr_linenumber" name="46" href="#46">46</a>
-<a class="jxr_linenumber" name="47" href="#47">47</a> @Override
-<a class="jxr_linenumber" name="48" href="#48">48</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html">SegmentScanner</a> getSegmentScanner(<strong class="jxr_keyword">long</strong> readPoint) {
-<a class="jxr_linenumber" name="49" href="#49">49</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableCellSetSegmentScanner.html">MutableCellSetSegmentScanner</a>(<strong class="jxr_keyword">this</strong>, readPoint);
-<a class="jxr_linenumber" name="50" href="#50">50</a> }
-<a class="jxr_linenumber" name="51" href="#51">51</a>
-<a class="jxr_linenumber" name="52" href="#52">52</a> @Override
-<a class="jxr_linenumber" name="53" href="#53">53</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isEmpty() {
-<a class="jxr_linenumber" name="54" href="#54">54</a> <strong class="jxr_keyword">return</strong> getCellSet().isEmpty();
-<a class="jxr_linenumber" name="55" href="#55">55</a> }
-<a class="jxr_linenumber" name="56" href="#56">56</a>
-<a class="jxr_linenumber" name="57" href="#57">57</a> @Override
-<a class="jxr_linenumber" name="58" href="#58">58</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getCellsCount() {
-<a class="jxr_linenumber" name="59" href="#59">59</a> <strong class="jxr_keyword">return</strong> getCellSet().size();
-<a class="jxr_linenumber" name="60" href="#60">60</a> }
-<a class="jxr_linenumber" name="61" href="#61">61</a>
-<a class="jxr_linenumber" name="62" href="#62">62</a> @Override
-<a class="jxr_linenumber" name="63" href="#63">63</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> add(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) {
-<a class="jxr_linenumber" name="64" href="#64">64</a> <strong class="jxr_keyword">boolean</strong> succ = getCellSet().add(cell);
-<a class="jxr_linenumber" name="65" href="#65">65</a> <strong class="jxr_keyword">long</strong> s = AbstractMemStore.heapSizeChange(cell, succ);
-<a class="jxr_linenumber" name="66" href="#66">66</a> updateMetaInfo(cell, s);
-<a class="jxr_linenumber" name="67" href="#67">67</a> <em class="jxr_comment">// In no tags case this NoTagsKeyValue.getTagsLength() is a cheap call.</em>
-<a class="jxr_linenumber" name="68" href="#68">68</a> <em class="jxr_comment">// When we use ACL CP or Visibility CP which deals with Tags during</em>
-<a class="jxr_linenumber" name="69" href="#69">69</a> <em class="jxr_comment">// mutation, the TagRewriteCell.getTagsLength() is a cheaper call. We do not</em>
-<a class="jxr_linenumber" name="70" href="#70">70</a> <em class="jxr_comment">// parse the byte[] to identify the tags length.</em>
-<a class="jxr_linenumber" name="71" href="#71">71</a> <strong class="jxr_keyword">if</strong>(cell.getTagsLength() > 0) {
-<a class="jxr_linenumber" name="72" href="#72">72</a> tagsPresent = <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="73" href="#73">73</a> }
-<a class="jxr_linenumber" name="74" href="#74">74</a> <strong class="jxr_keyword">return</strong> s;
-<a class="jxr_linenumber" name="75" href="#75">75</a> }
-<a class="jxr_linenumber" name="76" href="#76">76</a>
-<a class="jxr_linenumber" name="77" href="#77">77</a> @Override
-<a class="jxr_linenumber" name="78" href="#78">78</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> rollback(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) {
-<a class="jxr_linenumber" name="79" href="#79">79</a> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> found = get(cell);
-<a class="jxr_linenumber" name="80" href="#80">80</a> <strong class="jxr_keyword">if</strong> (found != <strong class="jxr_keyword">null</strong> && found.getSequenceId() == cell.getSequenceId()) {
-<a class="jxr_linenumber" name="81" href="#81">81</a> <strong class="jxr_keyword">long</strong> sz = AbstractMemStore.heapSizeChange(cell, <strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="82" href="#82">82</a> remove(cell);
-<a class="jxr_linenumber" name="83" href="#83">83</a> incSize(-sz);
-<a class="jxr_linenumber" name="84" href="#84">84</a> <strong class="jxr_keyword">return</strong> sz;
-<a class="jxr_linenumber" name="85" href="#85">85</a> }
-<a class="jxr_linenumber" name="86" href="#86">86</a> <strong class="jxr_keyword">return</strong> 0;
-<a class="jxr_linenumber" name="87" href="#87">87</a> }
-<a class="jxr_linenumber" name="88" href="#88">88</a>
-<a class="jxr_linenumber" name="89" href="#89">89</a> @Override
-<a class="jxr_linenumber" name="90" href="#90">90</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> getFirstAfter(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) {
-<a class="jxr_linenumber" name="91" href="#91">91</a> SortedSet<Cell> snTailSet = tailSet(cell);
-<a class="jxr_linenumber" name="92" href="#92">92</a> <strong class="jxr_keyword">if</strong> (!snTailSet.isEmpty()) {
-<a class="jxr_linenumber" name="93" href="#93">93</a> <strong class="jxr_keyword">return</strong> snTailSet.first();
-<a class="jxr_linenumber" name="94" href="#94">94</a> }
-<a class="jxr_linenumber" name="95" href="#95">95</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="96" href="#96">96</a> }
-<a class="jxr_linenumber" name="97" href="#97">97</a>
-<a class="jxr_linenumber" name="98" href="#98">98</a> @Override
-<a class="jxr_linenumber" name="99" href="#99">99</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> dump(Log log) {
-<a class="jxr_linenumber" name="100" href="#100">100</a> <strong class="jxr_keyword">for</strong> (Cell cell: getCellSet()) {
-<a class="jxr_linenumber" name="101" href="#101">101</a> log.debug(cell);
-<a class="jxr_linenumber" name="102" href="#102">102</a> }
-<a class="jxr_linenumber" name="103" href="#103">103</a> }
-<a class="jxr_linenumber" name="104" href="#104">104</a>
-<a class="jxr_linenumber" name="105" href="#105">105</a> @Override
-<a class="jxr_linenumber" name="106" href="#106">106</a> <strong class="jxr_keyword">public</strong> SortedSet<Cell> tailSet(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> firstCell) {
-<a class="jxr_linenumber" name="107" href="#107">107</a> <strong class="jxr_keyword">return</strong> getCellSet().tailSet(firstCell);
-<a class="jxr_linenumber" name="108" href="#108">108</a> }
-<a class="jxr_linenumber" name="109" href="#109">109</a> @Override
-<a class="jxr_linenumber" name="110" href="#110">110</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/CellSet.html">CellSet</a> getCellSet() {
-<a class="jxr_linenumber" name="111" href="#111">111</a> <strong class="jxr_keyword">return</strong> cellSet;
-<a class="jxr_linenumber" name="112" href="#112">112</a> }
-<a class="jxr_linenumber" name="113" href="#113">113</a> @Override
-<a class="jxr_linenumber" name="114" href="#114">114</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/CellComparator.html">CellComparator</a> getComparator() {
-<a class="jxr_linenumber" name="115" href="#115">115</a> <strong class="jxr_keyword">return</strong> comparator;
-<a class="jxr_linenumber" name="116" href="#116">116</a> }
-<a class="jxr_linenumber" name="117" href="#117">117</a>
-<a class="jxr_linenumber" name="118" href="#118">118</a> /<em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment">* Methods for MemStoreSegmentsScanner</em>
-<a class="jxr_linenumber" name="119" href="#119">119</a> <em class="jxr_javadoccomment"> public Cell last() {</em>
-<a class="jxr_linenumber" name="120" href="#120">120</a> <em class="jxr_javadoccomment"> return getCellSet().last();</em>
-<a class="jxr_linenumber" name="121" href="#121">121</a> <em class="jxr_javadoccomment"> }</em>
-<a class="jxr_linenumber" name="122" href="#122">122</a>
-<a class="jxr_linenumber" name="123" href="#123">123</a> <em class="jxr_javadoccomment"> public Iterator<Cell> iterator() {</em>
-<a class="jxr_linenumber" name="124" href="#124">124</a> <em class="jxr_javadoccomment"> return getCellSet().iterator();</em>
-<a class="jxr_linenumber" name="125" href="#125">125</a> <em class="jxr_javadoccomment"> }</em>
-<a class="jxr_linenumber" name="126" href="#126">126</a>
-<a class="jxr_linenumber" name="127" href="#127">127</a> <em class="jxr_javadoccomment"> public SortedSet<Cell> headSet(Cell firstKeyOnRow) {</em>
-<a class="jxr_linenumber" name="128" href="#128">128</a> <em class="jxr_javadoccomment"> return getCellSet().headSet(firstKeyOnRow);</em>
-<a class="jxr_linenumber" name="129" href="#129">129</a> <em class="jxr_javadoccomment"> }</em>
-<a class="jxr_linenumber" name="130" href="#130">130</a>
-<a class="jxr_linenumber" name="131" href="#131">131</a> <em class="jxr_javadoccomment"> public int compare(Cell left, Cell right) {</em>
-<a class="jxr_linenumber" name="132" href="#132">132</a> <em class="jxr_javadoccomment"> return getComparator().compare(left, right);</em>
-<a class="jxr_linenumber" name="133" href="#133">133</a> <em class="jxr_javadoccomment"> }</em>
-<a class="jxr_linenumber" name="134" href="#134">134</a>
-<a class="jxr_linenumber" name="135" href="#135">135</a> <em class="jxr_javadoccomment"> public int compareRows(Cell left, Cell right) {</em>
-<a class="jxr_linenumber" name="136" href="#136">136</a> <em class="jxr_javadoccomment"> return getComparator().compareRows(left, right);</em>
-<a class="jxr_linenumber" name="137" href="#137">137</a> <em class="jxr_javadoccomment"> }</em>
-<a class="jxr_linenumber" name="138" href="#138">138</a>
-<a class="jxr_linenumber" name="139" href="#139">139</a> <em class="jxr_javadoccomment"> private Cell get(Cell cell) {</em>
-<a class="jxr_linenumber" name="140" href="#140">140</a> <em class="jxr_javadoccomment"> return getCellSet().get(cell);</em>
-<a class="jxr_linenumber" name="141" href="#141">141</a> <em class="jxr_javadoccomment"> }</em>
-<a class="jxr_linenumber" name="142" href="#142">142</a>
-<a class="jxr_linenumber" name="143" href="#143">143</a> <em class="jxr_javadoccomment"> private boolean remove(Cell e) {</em>
-<a class="jxr_linenumber" name="144" href="#144">144</a> <em class="jxr_javadoccomment"> return getCellSet().remove(e);</em>
-<a class="jxr_linenumber" name="145" href="#145">145</a> <em class="jxr_javadoccomment"> }</em>
-<a class="jxr_linenumber" name="146" href="#146">146</a>
-<a class="jxr_linenumber" name="147" href="#147">147</a> <em class="jxr_javadoccomment"> // methods for tests</em>
-<a class="jxr_linenumber" name="148" href="#148">148</a> <em class="jxr_javadoccomment"> @Override</em>
-<a class="jxr_linenumber" name="149" href="#149">149</a> <em class="jxr_javadoccomment"> Cell first() {</em>
-<a class="jxr_linenumber" name="150" href="#150">150</a> <em class="jxr_javadoccomment"> return this.getCellSet().first();</em>
-<a class="jxr_linenumber" name="151" href="#151">151</a> <em class="jxr_javadoccomment"> }</em>
-<a class="jxr_linenumber" name="152" href="#152">152</a>
-<a class="jxr_linenumber" name="153" href="#153">153</a> <em class="jxr_javadoccomment">}</em>
-</pre>
-<hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body>
-</html>
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-<title>MutableCellSetSegmentScanner xref</title>
-<link type="text/css" rel="stylesheet" href="../../../../../stylesheet.css" />
-</head>
-<body>
-<div id="overview"><a href="../../../../../../devapidocs/org/apache/hadoop/hbase/regionserver/MutableCellSetSegmentScanner.html">View Javadoc</a></div><pre>
-
-<a class="jxr_linenumber" name="1" href="#1">1</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="2" href="#2">2</a> <em class="jxr_javadoccomment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
-<a class="jxr_linenumber" name="3" href="#3">3</a> <em class="jxr_javadoccomment"> * or more contributor license agreements. See the NOTICE file</em>
-<a class="jxr_linenumber" name="4" href="#4">4</a> <em class="jxr_javadoccomment"> * distributed with this work for additional information</em>
-<a class="jxr_linenumber" name="5" href="#5">5</a> <em class="jxr_javadoccomment"> * regarding copyright ownership. The ASF licenses this file</em>
-<a class="jxr_linenumber" name="6" href="#6">6</a> <em class="jxr_javadoccomment"> * to you under the Apache License, Version 2.0 (the</em>
-<a class="jxr_linenumber" name="7" href="#7">7</a> <em class="jxr_javadoccomment"> * "License"); you may not use this file except in compliance</em>
-<a class="jxr_linenumber" name="8" href="#8">8</a> <em class="jxr_javadoccomment"> * with the License. You may obtain a copy of the License at</em>
-<a class="jxr_linenumber" name="9" href="#9">9</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="10" href="#10">10</a> <em class="jxr_javadoccomment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
-<a class="jxr_linenumber" name="11" href="#11">11</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="12" href="#12">12</a> <em class="jxr_javadoccomment"> * Unless required by applicable law or agreed to in writing, software</em>
-<a class="jxr_linenumber" name="13" href="#13">13</a> <em class="jxr_javadoccomment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
-<a class="jxr_linenumber" name="14" href="#14">14</a> <em class="jxr_javadoccomment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
-<a class="jxr_linenumber" name="15" href="#15">15</a> <em class="jxr_javadoccomment"> * See the License for the specific language governing permissions and</em>
-<a class="jxr_linenumber" name="16" href="#16">16</a> <em class="jxr_javadoccomment"> * limitations under the License.</em>
-<a class="jxr_linenumber" name="17" href="#17">17</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="18" href="#18">18</a> <strong class="jxr_keyword">package</strong> org.apache.hadoop.hbase.regionserver;
-<a class="jxr_linenumber" name="19" href="#19">19</a>
-<a class="jxr_linenumber" name="20" href="#20">20</a> <strong class="jxr_keyword">import</strong> java.io.IOException;
-<a class="jxr_linenumber" name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> java.util.Iterator;
-<a class="jxr_linenumber" name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> java.util.SortedSet;
-<a class="jxr_linenumber" name="23" href="#23">23</a>
-<a class="jxr_linenumber" name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.Cell;
-<a class="jxr_linenumber" name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.CellUtil;
-<a class="jxr_linenumber" name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.classification.InterfaceAudience;
-<a class="jxr_linenumber" name="27" href="#27">27</a>
-<a class="jxr_linenumber" name="28" href="#28">28</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="29" href="#29">29</a> <em class="jxr_javadoccomment"> * A scanner of a single cells segment {@link MutableCellSetSegment}.</em>
-<a class="jxr_linenumber" name="30" href="#30">30</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="31" href="#31">31</a> @InterfaceAudience.Private
-<a class="jxr_linenumber" name="32" href="#32">32</a> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableCellSetSegmentScanner.html">MutableCellSetSegmentScanner</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html">SegmentScanner</a> {
-<a class="jxr_linenumber" name="33" href="#33">33</a>
-<a class="jxr_linenumber" name="34" href="#34">34</a> <em class="jxr_comment">// the observed structure</em>
-<a class="jxr_linenumber" name="35" href="#35">35</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableCellSetSegment.html">MutableCellSetSegment</a> segment;
-<a class="jxr_linenumber" name="36" href="#36">36</a> <em class="jxr_comment">// the highest relevant MVCC</em>
-<a class="jxr_linenumber" name="37" href="#37">37</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">long</strong> readPoint;
-<a class="jxr_linenumber" name="38" href="#38">38</a> <em class="jxr_comment">// the current iterator that can be reinitialized by</em>
-<a class="jxr_linenumber" name="39" href="#39">39</a> <em class="jxr_comment">// seek(), backwardSeek(), or reseek()</em>
-<a class="jxr_linenumber" name="40" href="#40">40</a> <strong class="jxr_keyword">private</strong> Iterator<Cell> iter;
-<a class="jxr_linenumber" name="41" href="#41">41</a> <em class="jxr_comment">// the pre-calculated cell to be returned by peek()</em>
-<a class="jxr_linenumber" name="42" href="#42">42</a> <strong class="jxr_keyword">private</strong> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> current = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="43" href="#43">43</a> <em class="jxr_comment">// or next()</em>
-<a class="jxr_linenumber" name="44" href="#44">44</a> <em class="jxr_comment">// A flag represents whether could stop skipping KeyValues for MVCC</em>
-<a class="jxr_linenumber" name="45" href="#45">45</a> <em class="jxr_comment">// if have encountered the next row. Only used for reversed scan</em>
-<a class="jxr_linenumber" name="46" href="#46">46</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> stopSkippingKVsIfNextRow = false;
-<a class="jxr_linenumber" name="47" href="#47">47</a> <em class="jxr_comment">// last iterated KVs by seek (to restore the iterator state after reseek)</em>
-<a class="jxr_linenumber" name="48" href="#48">48</a> <strong class="jxr_keyword">private</strong> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> last = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="49" href="#49">49</a>
-<a class="jxr_linenumber" name="50" href="#50">50</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableCellSetSegmentScanner.html">MutableCellSetSegmentScanner</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/MutableCellSetSegment.html">MutableCellSetSegment</a> segment, <strong class="jxr_keyword">long</strong> readPoint) {
-<a class="jxr_linenumber" name="51" href="#51">51</a> <strong class="jxr_keyword">super</strong>();
-<a class="jxr_linenumber" name="52" href="#52">52</a> <strong class="jxr_keyword">this</strong>.segment = segment;
-<a class="jxr_linenumber" name="53" href="#53">53</a> <strong class="jxr_keyword">this</strong>.readPoint = readPoint;
-<a class="jxr_linenumber" name="54" href="#54">54</a> iter = segment.iterator();
-<a class="jxr_linenumber" name="55" href="#55">55</a> <em class="jxr_comment">// the initialization of the current is required for working with heap of SegmentScanners</em>
-<a class="jxr_linenumber" name="56" href="#56">56</a> current = getNext();
-<a class="jxr_linenumber" name="57" href="#57">57</a> <em class="jxr_comment">//increase the reference count so the underlying structure will not be de-allocated</em>
-<a class="jxr_linenumber" name="58" href="#58">58</a> <strong class="jxr_keyword">this</strong>.segment.incScannerCount();
-<a class="jxr_linenumber" name="59" href="#59">59</a> }
-<a class="jxr_linenumber" name="60" href="#60">60</a>
-<a class="jxr_linenumber" name="61" href="#61">61</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="62" href="#62">62</a> <em class="jxr_javadoccomment"> * Look at the next Cell in this scanner, but do not iterate the scanner</em>
-<a class="jxr_linenumber" name="63" href="#63">63</a> <em class="jxr_javadoccomment"> * @return the currently observed Cell</em>
-<a class="jxr_linenumber" name="64" href="#64">64</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="65" href="#65">65</a> @Override
-<a class="jxr_linenumber" name="66" href="#66">66</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> peek() { <em class="jxr_comment">// sanity check, the current should be always valid</em>
-<a class="jxr_linenumber" name="67" href="#67">67</a> <strong class="jxr_keyword">if</strong> (current!=<strong class="jxr_keyword">null</strong> && current.getSequenceId() > readPoint) {
-<a class="jxr_linenumber" name="68" href="#68">68</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> RuntimeException(<span class="jxr_string">"current is invalid: read point is "</span>+readPoint+<span class="jxr_string">", "</span> +
-<a class="jxr_linenumber" name="69" href="#69">69</a> <span class="jxr_string">"while current sequence id is "</span> +current.getSequenceId());
-<a class="jxr_linenumber" name="70" href="#70">70</a> }
-<a class="jxr_linenumber" name="71" href="#71">71</a>
-<a class="jxr_linenumber" name="72" href="#72">72</a> <strong class="jxr_keyword">return</strong> current;
-<a class="jxr_linenumber" name="73" href="#73">73</a> }
-<a class="jxr_linenumber" name="74" href="#74">74</a>
-<a class="jxr_linenumber" name="75" href="#75">75</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="76" href="#76">76</a> <em class="jxr_javadoccomment"> * Return the next Cell in this scanner, iterating the scanner</em>
-<a class="jxr_linenumber" name="77" href="#77">77</a> <em class="jxr_javadoccomment"> * @return the next Cell or null if end of scanner</em>
-<a class="jxr_linenumber" name="78" href="#78">78</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="79" href="#79">79</a> @Override
-<a class="jxr_linenumber" name="80" href="#80">80</a> <strong class="jxr_keyword">public</strong> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> next() <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="81" href="#81">81</a> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> oldCurrent = current;
-<a class="jxr_linenumber" name="82" href="#82">82</a> current = getNext(); <em class="jxr_comment">// update the currently observed Cell</em>
-<a class="jxr_linenumber" name="83" href="#83">83</a> <strong class="jxr_keyword">return</strong> oldCurrent;
-<a class="jxr_linenumber" name="84" href="#84">84</a> }
-<a class="jxr_linenumber" name="85" href="#85">85</a>
-<a class="jxr_linenumber" name="86" href="#86">86</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="87" href="#87">87</a> <em class="jxr_javadoccomment"> * Seek the scanner at or after the specified Cell.</em>
-<a class="jxr_linenumber" name="88" href="#88">88</a> <em class="jxr_javadoccomment"> * @param cell seek value</em>
-<a class="jxr_linenumber" name="89" href="#89">89</a> <em class="jxr_javadoccomment"> * @return true if scanner has values left, false if end of scanner</em>
-<a class="jxr_linenumber" name="90" href="#90">90</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="91" href="#91">91</a> @Override
-<a class="jxr_linenumber" name="92" href="#92">92</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> seek(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="93" href="#93">93</a> <strong class="jxr_keyword">if</strong>(cell == <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="94" href="#94">94</a> close();
-<a class="jxr_linenumber" name="95" href="#95">95</a> <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="96" href="#96">96</a> }
-<a class="jxr_linenumber" name="97" href="#97">97</a> <em class="jxr_comment">// restart the iterator from new key</em>
-<a class="jxr_linenumber" name="98" href="#98">98</a> iter = segment.tailSet(cell).iterator();
-<a class="jxr_linenumber" name="99" href="#99">99</a> <em class="jxr_comment">// last is going to be reinitialized in the next getNext() call</em>
-<a class="jxr_linenumber" name="100" href="#100">100</a> last = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="101" href="#101">101</a> current = getNext();
-<a class="jxr_linenumber" name="102" href="#102">102</a> <strong class="jxr_keyword">return</strong> (current != <strong class="jxr_keyword">null</strong>);
-<a class="jxr_linenumber" name="103" href="#103">103</a> }
-<a class="jxr_linenumber" name="104" href="#104">104</a>
-<a class="jxr_linenumber" name="105" href="#105">105</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="106" href="#106">106</a> <em class="jxr_javadoccomment"> * Reseek the scanner at or after the specified KeyValue.</em>
-<a class="jxr_linenumber" name="107" href="#107">107</a> <em class="jxr_javadoccomment"> * This method is guaranteed to seek at or after the required key only if the</em>
-<a class="jxr_linenumber" name="108" href="#108">108</a> <em class="jxr_javadoccomment"> * key comes after the current position of the scanner. Should not be used</em>
-<a class="jxr_linenumber" name="109" href="#109">109</a> <em class="jxr_javadoccomment"> * to seek to a key which may come before the current position.</em>
-<a class="jxr_linenumber" name="110" href="#110">110</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="111" href="#111">111</a> <em class="jxr_javadoccomment"> * @param cell seek value (should be non-null)</em>
-<a class="jxr_linenumber" name="112" href="#112">112</a> <em class="jxr_javadoccomment"> * @return true if scanner has values left, false if end of scanner</em>
-<a class="jxr_linenumber" name="113" href="#113">113</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="114" href="#114">114</a> @Override
-<a class="jxr_linenumber" name="115" href="#115">115</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> reseek(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="116" href="#116">116</a>
-<a class="jxr_linenumber" name="117" href="#117">117</a> <em class="jxr_comment">/*</em>
-<a class="jxr_linenumber" name="118" href="#118">118</a> <em class="jxr_comment"> See HBASE-4195 & HBASE-3855 & HBASE-6591 for the background on this implementation.</em>
-<a class="jxr_linenumber" name="119" href="#119">119</a> <em class="jxr_comment"> This code is executed concurrently with flush and puts, without locks.</em>
-<a class="jxr_linenumber" name="120" href="#120">120</a> <em class="jxr_comment"> The ideal implementation for performance would use the sub skip list implicitly</em>
-<a class="jxr_linenumber" name="121" href="#121">121</a> <em class="jxr_comment"> pointed by the iterator. Unfortunately the Java API does not offer a method to</em>
-<a class="jxr_linenumber" name="122" href="#122">122</a> <em class="jxr_comment"> get it. So we remember the last keys we iterated to and restore</em>
-<a class="jxr_linenumber" name="123" href="#123">123</a> <em class="jxr_comment"> the reseeked set to at least that point.</em>
-<a class="jxr_linenumber" name="124" href="#124">124</a> <em class="jxr_comment"> */</em>
-<a class="jxr_linenumber" name="125" href="#125">125</a> iter = segment.tailSet(getHighest(cell, last)).iterator();
-<a class="jxr_linenumber" name="126" href="#126">126</a> current = getNext();
-<a class="jxr_linenumber" name="127" href="#127">127</a> <strong class="jxr_keyword">return</strong> (current != <strong class="jxr_keyword">null</strong>);
-<a class="jxr_linenumber" name="128" href="#128">128</a> }
-<a class="jxr_linenumber" name="129" href="#129">129</a>
-<a class="jxr_linenumber" name="130" href="#130">130</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="131" href="#131">131</a> <em class="jxr_javadoccomment"> * Seek the scanner at or before the row of specified Cell, it firstly</em>
-<a class="jxr_linenumber" name="132" href="#132">132</a> <em class="jxr_javadoccomment"> * tries to seek the scanner at or after the specified Cell, return if</em>
-<a class="jxr_linenumber" name="133" href="#133">133</a> <em class="jxr_javadoccomment"> * peek KeyValue of scanner has the same row with specified Cell,</em>
-<a class="jxr_linenumber" name="134" href="#134">134</a> <em class="jxr_javadoccomment"> * otherwise seek the scanner at the first Cell of the row which is the</em>
-<a class="jxr_linenumber" name="135" href="#135">135</a> <em class="jxr_javadoccomment"> * previous row of specified KeyValue</em>
-<a class="jxr_linenumber" name="136" href="#136">136</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="137" href="#137">137</a> <em class="jxr_javadoccomment"> * @param key seek Cell</em>
-<a class="jxr_linenumber" name="138" href="#138">138</a> <em class="jxr_javadoccomment"> * @return true if the scanner is at the valid KeyValue, false if such Cell does not exist</em>
-<a class="jxr_linenumber" name="139" href="#139">139</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="140" href="#140">140</a> @Override
-<a class="jxr_linenumber" name="141" href="#141">141</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> backwardSeek(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> key) <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="142" href="#142">142</a> seek(key); <em class="jxr_comment">// seek forward then go backward</em>
-<a class="jxr_linenumber" name="143" href="#143">143</a> <strong class="jxr_keyword">if</strong> (peek() == <strong class="jxr_keyword">null</strong> || segment.compareRows(peek(), key) > 0) {
-<a class="jxr_linenumber" name="144" href="#144">144</a> <strong class="jxr_keyword">return</strong> seekToPreviousRow(key);
-<a class="jxr_linenumber" name="145" href="#145">145</a> }
-<a class="jxr_linenumber" name="146" href="#146">146</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="147" href="#147">147</a> }
-<a class="jxr_linenumber" name="148" href="#148">148</a>
-<a class="jxr_linenumber" name="149" href="#149">149</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="150" href="#150">150</a> <em class="jxr_javadoccomment"> * Seek the scanner at the first Cell of the row which is the previous row</em>
-<a class="jxr_linenumber" name="151" href="#151">151</a> <em class="jxr_javadoccomment"> * of specified key</em>
-<a class="jxr_linenumber" name="152" href="#152">152</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="153" href="#153">153</a> <em class="jxr_javadoccomment"> * @param cell seek value</em>
-<a class="jxr_linenumber" name="154" href="#154">154</a> <em class="jxr_javadoccomment"> * @return true if the scanner at the first valid Cell of previous row,</em>
-<a class="jxr_linenumber" name="155" href="#155">155</a> <em class="jxr_javadoccomment"> * false if not existing such Cell</em>
-<a class="jxr_linenumber" name="156" href="#156">156</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="157" href="#157">157</a> @Override
-<a class="jxr_linenumber" name="158" href="#158">158</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> seekToPreviousRow(<a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> cell) <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="159" href="#159">159</a> <strong class="jxr_keyword">boolean</strong> keepSeeking = false;
-<a class="jxr_linenumber" name="160" href="#160">160</a> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> key = cell;
-<a class="jxr_linenumber" name="161" href="#161">161</a>
-<a class="jxr_linenumber" name="162" href="#162">162</a> <strong class="jxr_keyword">do</strong> {
-<a class="jxr_linenumber" name="163" href="#163">163</a> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> firstKeyOnRow = CellUtil.createFirstOnRow(key);
-<a class="jxr_linenumber" name="164" href="#164">164</a> SortedSet<Cell> cellHead = segment.headSet(firstKeyOnRow);
-<a class="jxr_linenumber" name="165" href="#165">165</a> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> lastCellBeforeRow = cellHead.isEmpty() ? <strong class="jxr_keyword">null</strong> : cellHead.last();
-<a class="jxr_linenumber" name="166" href="#166">166</a> <strong class="jxr_keyword">if</strong> (lastCellBeforeRow == <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="167" href="#167">167</a> current = <strong class="jxr_keyword">null</strong>;
-<a class="jxr_linenumber" name="168" href="#168">168</a> <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="169" href="#169">169</a> }
-<a class="jxr_linenumber" name="170" href="#170">170</a> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> firstKeyOnPreviousRow = CellUtil.createFirstOnRow(lastCellBeforeRow);
-<a class="jxr_linenumber" name="171" href="#171">171</a> <strong class="jxr_keyword">this</strong>.stopSkippingKVsIfNextRow = <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="172" href="#172">172</a> seek(firstKeyOnPreviousRow);
-<a class="jxr_linenumber" name="173" href="#173">173</a> <strong class="jxr_keyword">this</strong>.stopSkippingKVsIfNextRow = false;
-<a class="jxr_linenumber" name="174" href="#174">174</a> <strong class="jxr_keyword">if</strong> (peek() == <strong class="jxr_keyword">null</strong>
-<a class="jxr_linenumber" name="175" href="#175">175</a> || segment.getComparator().compareRows(peek(), firstKeyOnPreviousRow) > 0) {
-<a class="jxr_linenumber" name="176" href="#176">176</a> keepSeeking = <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="177" href="#177">177</a> key = firstKeyOnPreviousRow;
-<a class="jxr_linenumber" name="178" href="#178">178</a> <strong class="jxr_keyword">continue</strong>;
-<a class="jxr_linenumber" name="179" href="#179">179</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="180" href="#180">180</a> keepSeeking = false;
-<a class="jxr_linenumber" name="181" href="#181">181</a> }
-<a class="jxr_linenumber" name="182" href="#182">182</a> } <strong class="jxr_keyword">while</strong> (keepSeeking);
-<a class="jxr_linenumber" name="183" href="#183">183</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
-<a class="jxr_linenumber" name="184" href="#184">184</a> }
-<a class="jxr_linenumber" name="185" href="#185">185</a>
-<a class="jxr_linenumber" name="186" href="#186">186</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="187" href="#187">187</a> <em class="jxr_javadoccomment"> * Seek the scanner at the first KeyValue of last row</em>
-<a class="jxr_linenumber" name="188" href="#188">188</a> <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="189" href="#189">189</a> <em class="jxr_javadoccomment"> * @return true if scanner has values left, false if the underlying data is empty</em>
-<a class="jxr_linenumber" name="190" href="#190">190</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="191" href="#191">191</a> @Override
-<a class="jxr_linenumber" name="192" href="#192">192</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> seekToLastRow() <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="193" href="#193">193</a> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> higherCell = segment.isEmpty() ? <strong class="jxr_keyword">null</strong> : segment.last();
-<a class="jxr_linenumber" name="194" href="#194">194</a> <strong class="jxr_keyword">if</strong> (higherCell == <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="195" href="#195">195</a> <strong class="jxr_keyword">return</strong> false;
-<a class="jxr_linenumber" name="196" href="#196">196</a> }
-<a class="jxr_linenumber" name="197" href="#197">197</a>
-<a class="jxr_linenumber" name="198" href="#198">198</a> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> firstCellOnLastRow = CellUtil.createFirstOnRow(higherCell);
-<a class="jxr_linenumber" name="199" href="#199">199</a>
-<a class="jxr_linenumber" name="200" href="#200">200</a> <strong class="jxr_keyword">if</strong> (seek(firstCellOnLastRow)) {
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-<a class="jxr_linenumber" name="202" href="#202">202</a> } <strong class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="203" href="#203">203</a> <strong class="jxr_keyword">return</strong> seekToPreviousRow(higherCell);
-<a class="jxr_linenumber" name="204" href="#204">204</a> }
-<a class="jxr_linenumber" name="205" href="#205">205</a> }
-<a class="jxr_linenumber" name="206" href="#206">206</a>
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-<a class="jxr_linenumber" name="208" href="#208">208</a> <strong class="jxr_keyword">return</strong> segment;
-<a class="jxr_linenumber" name="209" href="#209">209</a> }
-<a class="jxr_linenumber" name="210" href="#210">210</a>
-<a class="jxr_linenumber" name="211" href="#211">211</a> <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment">******************* <a href="../../../../../org/apache/hadoop/hbase/classification/InterfaceAudience.html">Private</a> Methods **********************/</em>
-<a class="jxr_linenumber" name="212" href="#212">212</a>
-<a class="jxr_linenumber" name="213" href="#213">213</a> <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="214" href="#214">214</a> <em class="jxr_javadoccomment"> * Private internal method for iterating over the segment,</em>
-<a class="jxr_linenumber" name="215" href="#215">215</a> <em class="jxr_javadoccomment"> * skipping the cells with irrelevant MVCC</em>
-<a class="jxr_linenumber" name="216" href="#216">216</a> <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="217" href="#217">217</a> <strong class="jxr_keyword">private</strong> <a href="../../../../../org/apache/hadoop/hbase/Cell.html">Cell</a> getNext() {
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-<a class="jxr_linenumber" name="220" href="#220">220</a>
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-<a class="jxr_linenumber" name="222" href="#222">222</a> <strong class="jxr_keyword">while</strong> (iter.hasNext()) {
-<a class="jxr_linenumber" name="223" href="#223">223</a> next = iter.next();
-<a class="jxr_linenumber" name="224" href="#224">224</a> <strong class="jxr_keyword">if</strong> (next.getSequenceId() <= <strong class="jxr_keyword">this</strong>.readPoint) {
-<a class="jxr_linenumber" name="225" href="#225">225</a> <strong class="jxr_keyword">return</strong> next; <em class="jxr_comment">// skip irrelevant versions</em>
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-<a class="jxr_linenumber" name="227" href="#227">227</a> <strong class="jxr_keyword">if</strong> (stopSkippingKVsIfNextRow && <em class="jxr_comment">// for backwardSeek() stay in the</em>
-<a class="jxr_linenumber" name="228" href="#228">228</a> startKV != <strong class="jxr_keyword">null</strong> && <em class="jxr_comment">// boundaries of a single row</em>
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-<a class="jxr_linenumber" name="231" href="#231">231</a> }
-<a class="jxr_linenumber" name="232" href="#232">232</a> } <em class="jxr_comment">// end of while</em>
-<a class="jxr_linenumber" name="233" href="#233">233</a>
-<a class="jxr_linenumber" name="234" href="#234">234</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>; <em class="jxr_comment">// nothing found</em>
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-<a class="jxr_linenumber" name="237" href="#237">237</a> <em class="jxr_comment">// in all cases, remember the last KV we iterated to, needed for reseek()</em>
-<a class="jxr_linenumber" name="238" href="#238">238</a> last = next;
-<a class="jxr_linenumber" name="239" href="#239">239</a> }
-<a class="jxr_linenumber" name="240" href="#240">240</a> }
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-<a class="jxr_linenumber" name="242" href="#242">242</a>
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