devapidocs/org/apache/hadoop/hbase/regionserver/SegmentScanner.html - hbase-site - Git at Google

 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <!-- NewPage -->
 <html lang="en">
 <head>
 <!-- Generated by javadoc -->
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>SegmentScanner (Apache HBase 4.0.0-alpha-1-SNAPSHOT API)</title>
 <link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style">
 <script type="text/javascript" src="../../../../../script.js"></script>
 </head>
 <body>
 <script type="text/javascript"><!--
     try {
         if (location.href.indexOf('is-external=true') == -1) {
             parent.document.title="SegmentScanner (Apache HBase 4.0.0-alpha-1-SNAPSHOT API)";
         }
     }
     catch(err) {
     }
 //-->
 var methods = {"i0":10,"i1":10,"i2":10,"i3":10,"i4":10,"i5":10,"i6":10,"i7":10,"i8":10,"i9":10,"i10":10,"i11":10,"i12":10,"i13":10,"i14":10,"i15":10,"i16":10,"i17":10,"i18":10,"i19":10,"i20":10,"i21":10};
 var tabs = {65535:["t0","All Methods"],2:["t2","Instance Methods"],8:["t4","Concrete Methods"]};
 var altColor = "altColor";
 var rowColor = "rowColor";
 var tableTab = "tableTab";
 var activeTableTab = "activeTableTab";
 </script>
 <noscript>
 <div>JavaScript is disabled on your browser.</div>
 </noscript>
 <!-- ========= START OF TOP NAVBAR ======= -->
 <div class="topNav"><a name="navbar.top">
 <!--   -->
 </a>
 <div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div>
 <a name="navbar.top.firstrow">
 <!--   -->
 </a>
 <ul class="navList" title="Navigation">
 <li><a href="../../../../../overview-summary.html">Overview</a></li>
 <li><a href="package-summary.html">Package</a></li>
 <li class="navBarCell1Rev">Class</li>
 <li><a href="class-use/SegmentScanner.html">Use</a></li>
 <li><a href="package-tree.html">Tree</a></li>
 <li><a href="../../../../../deprecated-list.html">Deprecated</a></li>
 <li><a href="../../../../../index-all.html">Index</a></li>
 <li><a href="../../../../../help-doc.html">Help</a></li>
 </ul>
 </div>
 <div class="subNav">
 <ul class="navList">
 <li><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentFactory.html" title="class in org.apache.hadoop.hbase.regionserver"><span class="typeNameLink">Prev&nbsp;Class</span></a></li>
 <li><a href="../../../../../org/apache/hadoop/hbase/regionserver/SequenceId.html" title="interface in org.apache.hadoop.hbase.regionserver"><span class="typeNameLink">Next&nbsp;Class</span></a></li>
 </ul>
 <ul class="navList">
 <li><a href="../../../../../index.html?org/apache/hadoop/hbase/regionserver/SegmentScanner.html" target="_top">Frames</a></li>
 <li><a href="SegmentScanner.html" target="_top">No&nbsp;Frames</a></li>
 </ul>
 <ul class="navList" id="allclasses_navbar_top">
 <li><a href="../../../../../allclasses-noframe.html">All&nbsp;Classes</a></li>
 </ul>
 <div>
 <script type="text/javascript"><!--
   allClassesLink = document.getElementById("allclasses_navbar_top");
   if(window==top) {
     allClassesLink.style.display = "block";
   }
   else {
     allClassesLink.style.display = "none";
   }
   //-->
 </script>
 </div>
 <div>
 <ul class="subNavList">
 <li>Summary:&nbsp;</li>
 <li>Nested&nbsp;|&nbsp;</li>
 <li><a href="#field.summary">Field</a>&nbsp;|&nbsp;</li>
 <li><a href="#constructor.summary">Constr</a>&nbsp;|&nbsp;</li>
 <li><a href="#method.summary">Method</a></li>
 </ul>
 <ul class="subNavList">
 <li>Detail:&nbsp;</li>
 <li><a href="#field.detail">Field</a>&nbsp;|&nbsp;</li>
 <li><a href="#constructor.detail">Constr</a>&nbsp;|&nbsp;</li>
 <li><a href="#method.detail">Method</a></li>
 </ul>
 </div>
 <a name="skip.navbar.top">
 <!--   -->
 </a></div>
 <!-- ========= END OF TOP NAVBAR ========= -->
 <!-- ======== START OF CLASS DATA ======== -->
 <div class="header">
 <div class="subTitle">org.apache.hadoop.hbase.regionserver</div>
 <h2 title="Class SegmentScanner" class="title">Class SegmentScanner</h2>
 </div>
 <div class="contentContainer">
 <ul class="inheritance">
 <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
 <li>
 <ul class="inheritance">
 <li>org.apache.hadoop.hbase.regionserver.SegmentScanner</li>
 </ul>
 </li>
 </ul>
 <div class="description">
 <ul class="blockList">
 <li class="blockList">
 <dl>
 <dt>All Implemented Interfaces:</dt>
 <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/Shipper.html" title="interface in org.apache.hadoop.hbase.regionserver">Shipper</a></dd>
 </dl>
 <hr>
 <br>
 <pre>@InterfaceAudience.Private
 public class <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.35">SegmentScanner</a>
 extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
 implements <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></pre>
 <div class="block">A scanner of a single memstore segment.</div>
 </li>
 </ul>
 </div>
 <div class="summary">
 <ul class="blockList">
 <li class="blockList">
 <!-- =========== FIELD SUMMARY =========== -->
 <ul class="blockList">
 <li class="blockList"><a name="field.summary">
 <!--   -->
 </a>
 <h3>Field Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
 <caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Field and Description</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>protected boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#closed">closed</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>protected <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#current">current</a></span></code>&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#iter">iter</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#last">last</a></span></code>&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#readPoint">readPoint</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>protected <a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#segment">segment</a></span></code>&nbsp;</td>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>private boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#stopSkippingKVsIfNextRow">stopSkippingKVsIfNextRow</a></span></code>&nbsp;</td>
 </tr>
 <tr class="rowColor">
 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#stopSkippingKVsRow">stopSkippingKVsRow</a></span></code>&nbsp;</td>
 </tr>
 </table>
 <ul class="blockList">
 <li class="blockList"><a name="fields.inherited.from.class.org.apache.hadoop.hbase.regionserver.KeyValueScanner">
 <!--   -->
 </a>
 <h3>Fields inherited from interface&nbsp;org.apache.hadoop.hbase.regionserver.<a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></h3>
 <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#NO_NEXT_INDEXED_KEY">NO_NEXT_INDEXED_KEY</a></code></li>
 </ul>
 </li>
 </ul>
 <!-- ======== CONSTRUCTOR SUMMARY ======== -->
 <ul class="blockList">
 <li class="blockList"><a name="constructor.summary">
 <!--   -->
 </a>
 <h3>Constructor Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
 <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier</th>
 <th class="colLast" scope="col">Constructor and Description</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>protected </code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#SegmentScanner-org.apache.hadoop.hbase.regionserver.Segment-long-">SegmentScanner</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a>&nbsp;segment,
               long&nbsp;readPoint)</code>
 <div class="block">Scanners are ordered from 0 (oldest) to newest in increasing order.</div>
 </td>
 </tr>
 </table>
 </li>
 </ul>
 <!-- ========== METHOD SUMMARY =========== -->
 <ul class="blockList">
 <li class="blockList"><a name="method.summary">
 <!--   -->
 </a>
 <h3>Method Summary</h3>
 <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
 <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
 <tr>
 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Method and Description</th>
 </tr>
 <tr id="i0" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#backwardSeek-org.apache.hadoop.hbase.Cell-">backwardSeek</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;key)</code>
 <div class="block">Seek the scanner at or before the row of specified Cell, it firstly tries to seek the scanner
  at or after the specified Cell, return if peek KeyValue of scanner has the same row with
  specified Cell, otherwise seek the scanner at the first Cell of the row which is the previous
  row of specified KeyValue</div>
 </td>
 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#close--">close</a></span>()</code>
 <div class="block">Close the KeyValue scanner.</div>
 </td>
 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#enforceSeek--">enforceSeek</a></span>()</code>
 <div class="block">This function should be never called on scanners that always do real seek operations (i.e.</div>
 </td>
 </tr>
 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>org.apache.hadoop.fs.Path</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#getFilePath--">getFilePath</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#getHighest-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-">getHighest</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;first,
           <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;second)</code>
 <div class="block">Private internal method that returns the higher of the two key values, or null if they are both
  null</div>
 </td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#getIterator-org.apache.hadoop.hbase.Cell-">getIterator</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;cell)</code>&nbsp;</td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#getNextIndexedKey--">getNextIndexedKey</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#getSegment--">getSegment</a></span>()</code>
 <div class="block">Private Methods</div>
 </td>
 </tr>
 <tr id="i8" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#isFileScanner--">isFileScanner</a></span>()</code>
 <div class="block">Returns true if this is a file scanner.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#next--">next</a></span>()</code>
 <div class="block">Return the next Cell in this scanner, iterating the scanner</div>
 </td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#peek--">peek</a></span>()</code>
 <div class="block">Look at the next Cell in this scanner, but do not iterate the scanner</div>
 </td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#realSeekDone--">realSeekDone</a></span>()</code>
 <div class="block">This scanner is working solely on the in-memory MemStore and doesn't work on store files,
  MutableCellSetSegmentScanner always does the seek, therefore always returning true.</div>
 </td>
 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#recordBlockSize-java.util.function.IntConsumer-">recordBlockSize</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/IntConsumer.html?is-external=true" title="class or interface in java.util.function">IntConsumer</a>&nbsp;blockSizeConsumer)</code>
 <div class="block">Record the size of the current block in bytes, passing as an argument to the blockSizeConsumer.</div>
 </td>
 </tr>
 <tr id="i13" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#requestSeek-org.apache.hadoop.hbase.Cell-boolean-boolean-">requestSeek</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;c,
            boolean&nbsp;forward,
            boolean&nbsp;useBloom)</code>
 <div class="block">Similar to <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#seek-org.apache.hadoop.hbase.Cell-"><code>KeyValueScanner.seek(org.apache.hadoop.hbase.Cell)</code></a> (or <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#reseek-org.apache.hadoop.hbase.Cell-"><code>KeyValueScanner.reseek(org.apache.hadoop.hbase.Cell)</code></a> if forward is true) but only does a seek operation
  after checking that it is really necessary for the row/column combination specified by the kv
  parameter.</div>
 </td>
 </tr>
 <tr id="i14" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#reseek-org.apache.hadoop.hbase.Cell-">reseek</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;cell)</code>
 <div class="block">Reseek the scanner at or after the specified KeyValue.</div>
 </td>
 </tr>
 <tr id="i15" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#seek-org.apache.hadoop.hbase.Cell-">seek</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;cell)</code>
 <div class="block">Seek the scanner at or after the specified Cell.</div>
 </td>
 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#seekToLastRow--">seekToLastRow</a></span>()</code>
 <div class="block">Seek the scanner at the first KeyValue of last row</div>
 </td>
 </tr>
 <tr id="i17" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#seekToPreviousRow-org.apache.hadoop.hbase.Cell-">seekToPreviousRow</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;cell)</code>
 <div class="block">Seek the scanner at the first Cell of the row which is the previous row of specified key</div>
 </td>
 </tr>
 <tr id="i18" class="altColor">
 <td class="colFirst"><code>void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#shipped--">shipped</a></span>()</code>
 <div class="block">Called after a batch of rows scanned (RPC) and set to be returned to client.</div>
 </td>
 </tr>
 <tr id="i19" class="rowColor">
 <td class="colFirst"><code>boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#shouldUseScanner-org.apache.hadoop.hbase.client.Scan-org.apache.hadoop.hbase.regionserver.HStore-long-">shouldUseScanner</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/Scan.html" title="class in org.apache.hadoop.hbase.client">Scan</a>&nbsp;scan,
                 <a href="../../../../../org/apache/hadoop/hbase/regionserver/HStore.html" title="class in org.apache.hadoop.hbase.regionserver">HStore</a>&nbsp;store,
                 long&nbsp;oldestUnexpiredTS)</code>
 <div class="block">This functionality should be resolved in the higher level which is MemStoreScanner, currently
  returns true as default.</div>
 </td>
 </tr>
 <tr id="i20" class="altColor">
 <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#toString--">toString</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i21" class="rowColor">
 <td class="colFirst"><code>protected void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#updateCurrent--">updateCurrent</a></span>()</code>
 <div class="block">Private internal method for iterating over the segment, skipping the cells with irrelevant MVCC</div>
 </td>
 </tr>
 </table>
 <ul class="blockList">
 <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
 <!--   -->
 </a>
 <h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
 <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
 </ul>
 <ul class="blockList">
 <li class="blockList"><a name="methods.inherited.from.class.org.apache.hadoop.hbase.regionserver.KeyValueScanner">
 <!--   -->
 </a>
 <h3>Methods inherited from interface&nbsp;org.apache.hadoop.hbase.regionserver.<a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></h3>
 <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#getScannerOrder--">getScannerOrder</a></code></li>
 </ul>
 </li>
 </ul>
 </li>
 </ul>
 </div>
 <div class="details">
 <ul class="blockList">
 <li class="blockList">
 <!-- ============ FIELD DETAIL =========== -->
 <ul class="blockList">
 <li class="blockList"><a name="field.detail">
 <!--   -->
 </a>
 <h3>Field Detail</h3>
 <a name="segment">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>segment</h4>
 <pre>protected final&nbsp;<a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.38">segment</a></pre>
 </li>
 </ul>
 <a name="readPoint">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>readPoint</h4>
 <pre>private&nbsp;long <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.40">readPoint</a></pre>
 </li>
 </ul>
 <a name="iter">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>iter</h4>
 <pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&gt; <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.43">iter</a></pre>
 </li>
 </ul>
 <a name="current">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>current</h4>
 <pre>protected&nbsp;<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.45">current</a></pre>
 </li>
 </ul>
 <a name="stopSkippingKVsIfNextRow">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>stopSkippingKVsIfNextRow</h4>
 <pre>private&nbsp;boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.49">stopSkippingKVsIfNextRow</a></pre>
 </li>
 </ul>
 <a name="stopSkippingKVsRow">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>stopSkippingKVsRow</h4>
 <pre>private&nbsp;<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.51">stopSkippingKVsRow</a></pre>
 </li>
 </ul>
 <a name="last">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>last</h4>
 <pre>private&nbsp;<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.53">last</a></pre>
 </li>
 </ul>
 <a name="closed">
 <!--   -->
 </a>
 <ul class="blockListLast">
 <li class="blockList">
 <h4>closed</h4>
 <pre>protected&nbsp;boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.56">closed</a></pre>
 </li>
 </ul>
 </li>
 </ul>
 <!-- ========= CONSTRUCTOR DETAIL ======== -->
 <ul class="blockList">
 <li class="blockList"><a name="constructor.detail">
 <!--   -->
 </a>
 <h3>Constructor Detail</h3>
 <a name="SegmentScanner-org.apache.hadoop.hbase.regionserver.Segment-long-">
 <!--   -->
 </a>
 <ul class="blockListLast">
 <li class="blockList">
 <h4>SegmentScanner</h4>
 <pre>protected&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.61">SegmentScanner</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a>&nbsp;segment,
                          long&nbsp;readPoint)</pre>
 <div class="block">Scanners are ordered from 0 (oldest) to newest in increasing order.</div>
 </li>
 </ul>
 </li>
 </ul>
 <!-- ============ METHOD DETAIL ========== -->
 <ul class="blockList">
 <li class="blockList"><a name="method.detail">
 <!--   -->
 </a>
 <h3>Method Detail</h3>
 <a name="peek--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>peek</h4>
 <pre>public&nbsp;<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.80">peek</a>()</pre>
 <div class="block">Look at the next Cell in this scanner, but do not iterate the scanner</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#peek--">peek</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the currently observed Cell</dd>
 </dl>
 </li>
 </ul>
 <a name="next--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>next</h4>
 <pre>public&nbsp;<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.96">next</a>()
           throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
 <div class="block">Return the next Cell in this scanner, iterating the scanner</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#next--">next</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the next Cell or null if end of scanner</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="seek-org.apache.hadoop.hbase.Cell-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>seek</h4>
 <pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.111">seek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;cell)
              throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
 <div class="block">Seek the scanner at or after the specified Cell.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#seek-org.apache.hadoop.hbase.Cell-">seek</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>cell</code> - seek value</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if scanner has values left, false if end of scanner</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="getIterator-org.apache.hadoop.hbase.Cell-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>getIterator</h4>
 <pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&gt;&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.127">getIterator</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;cell)</pre>
 </li>
 </ul>
 <a name="reseek-org.apache.hadoop.hbase.Cell-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>reseek</h4>
 <pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.139">reseek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;cell)
                throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
 <div class="block">Reseek the scanner at or after the specified KeyValue. This method is guaranteed to seek at or
  after the required key only if the key comes after the current position of the scanner. Should
  not be used to seek to a key which may come before the current position.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#reseek-org.apache.hadoop.hbase.Cell-">reseek</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>cell</code> - seek value (should be non-null)</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if scanner has values left, false if end of scanner</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="backwardSeek-org.apache.hadoop.hbase.Cell-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>backwardSeek</h4>
 <pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.164">backwardSeek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;key)
                      throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
 <div class="block">Seek the scanner at or before the row of specified Cell, it firstly tries to seek the scanner
  at or after the specified Cell, return if peek KeyValue of scanner has the same row with
  specified Cell, otherwise seek the scanner at the first Cell of the row which is the previous
  row of specified KeyValue</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#backwardSeek-org.apache.hadoop.hbase.Cell-">backwardSeek</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>key</code> - seek Cell</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if the scanner is at the valid KeyValue, false if such Cell does not exist</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="seekToPreviousRow-org.apache.hadoop.hbase.Cell-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>seekToPreviousRow</h4>
 <pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.182">seekToPreviousRow</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;cell)
                           throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
 <div class="block">Seek the scanner at the first Cell of the row which is the previous row of specified key</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#seekToPreviousRow-org.apache.hadoop.hbase.Cell-">seekToPreviousRow</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>cell</code> - seek value</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if the scanner at the first valid Cell of previous row, false if not existing such
          Cell</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="seekToLastRow--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>seekToLastRow</h4>
 <pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.219">seekToLastRow</a>()
                       throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
 <div class="block">Seek the scanner at the first KeyValue of last row</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#seekToLastRow--">seekToLastRow</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if scanner has values left, false if the underlying data is empty</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="close--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>close</h4>
 <pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.241">close</a>()</pre>
 <div class="block">Close the KeyValue scanner.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true#close--" title="class or interface in java.io">close</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a></code></dd>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true#close--" title="class or interface in java.lang">close</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a></code></dd>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#close--">close</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="shouldUseScanner-org.apache.hadoop.hbase.client.Scan-org.apache.hadoop.hbase.regionserver.HStore-long-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>shouldUseScanner</h4>
 <pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.255">shouldUseScanner</a>(<a href="../../../../../org/apache/hadoop/hbase/client/Scan.html" title="class in org.apache.hadoop.hbase.client">Scan</a>&nbsp;scan,
                                 <a href="../../../../../org/apache/hadoop/hbase/regionserver/HStore.html" title="class in org.apache.hadoop.hbase.regionserver">HStore</a>&nbsp;store,
                                 long&nbsp;oldestUnexpiredTS)</pre>
 <div class="block">This functionality should be resolved in the higher level which is MemStoreScanner, currently
  returns true as default. Doesn't throw IllegalStateException in order not to change the
  signature of the overridden method</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#shouldUseScanner-org.apache.hadoop.hbase.client.Scan-org.apache.hadoop.hbase.regionserver.HStore-long-">shouldUseScanner</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>scan</code> - the scan that we are selecting scanners for</dd>
 <dd><code>store</code> - the store we are performing the scan on.</dd>
 <dd><code>oldestUnexpiredTS</code> - the oldest timestamp we are interested in for this query, based on TTL</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if the scanner should be included in the query</dd>
 </dl>
 </li>
 </ul>
 <a name="requestSeek-org.apache.hadoop.hbase.Cell-boolean-boolean-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>requestSeek</h4>
 <pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.261">requestSeek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;c,
                            boolean&nbsp;forward,
                            boolean&nbsp;useBloom)
                     throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#requestSeek-org.apache.hadoop.hbase.Cell-boolean-boolean-">KeyValueScanner</a></code></span></div>
 <div class="block">Similar to <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#seek-org.apache.hadoop.hbase.Cell-"><code>KeyValueScanner.seek(org.apache.hadoop.hbase.Cell)</code></a> (or <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#reseek-org.apache.hadoop.hbase.Cell-"><code>KeyValueScanner.reseek(org.apache.hadoop.hbase.Cell)</code></a> if forward is true) but only does a seek operation
  after checking that it is really necessary for the row/column combination specified by the kv
  parameter. This function was added to avoid unnecessary disk seeks by checking row-column Bloom
  filters before a seek on multi-column get/scan queries, and to optimize by looking up more
  recent files first.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#requestSeek-org.apache.hadoop.hbase.Cell-boolean-boolean-">requestSeek</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dd><code>forward</code> - do a forward-only "reseek" instead of a random-access seek</dd>
 <dd><code>useBloom</code> - whether to enable multi-column Bloom filter optimization</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="realSeekDone--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>realSeekDone</h4>
 <pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.270">realSeekDone</a>()</pre>
 <div class="block">This scanner is working solely on the in-memory MemStore and doesn't work on store files,
  MutableCellSetSegmentScanner always does the seek, therefore always returning true.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#realSeekDone--">realSeekDone</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="enforceSeek--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>enforceSeek</h4>
 <pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.280">enforceSeek</a>()
                  throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
 <div class="block">This function should be never called on scanners that always do real seek operations (i.e. most
  of the scanners and also this one). The easiest way to achieve this is to call
  <a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentScanner.html#realSeekDone--"><code>realSeekDone()</code></a> first.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#enforceSeek--">enforceSeek</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="isFileScanner--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>isFileScanner</h4>
 <pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.286">isFileScanner</a>()</pre>
 <div class="block">Returns true if this is a file scanner. Otherwise a memory scanner is assumed.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#isFileScanner--">isFileScanner</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="recordBlockSize-java.util.function.IntConsumer-">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>recordBlockSize</h4>
 <pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.291">recordBlockSize</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/IntConsumer.html?is-external=true" title="class or interface in java.util.function">IntConsumer</a>&nbsp;blockSizeConsumer)</pre>
 <div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#recordBlockSize-java.util.function.IntConsumer-">KeyValueScanner</a></code></span></div>
 <div class="block">Record the size of the current block in bytes, passing as an argument to the blockSizeConsumer.
  Implementations should ensure that blockSizeConsumer is only called once per block.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#recordBlockSize-java.util.function.IntConsumer-">recordBlockSize</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>blockSizeConsumer</code> - to be called with block size in bytes, once per block.</dd>
 </dl>
 </li>
 </ul>
 <a name="getFilePath--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>getFilePath</h4>
 <pre>public&nbsp;org.apache.hadoop.fs.Path&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.296">getFilePath</a>()</pre>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#getFilePath--">getFilePath</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the file path if this is a file scanner, otherwise null.</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#isFileScanner--"><code>KeyValueScanner.isFileScanner()</code></a></dd>
 </dl>
 </li>
 </ul>
 <a name="getNextIndexedKey--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>getNextIndexedKey</h4>
 <pre>public&nbsp;<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.305">getNextIndexedKey</a>()</pre>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#getNextIndexedKey--">getNextIndexedKey</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the next key in the index (the key to seek to the next block) if known, or null
          otherwise Not relevant for in-memory scanner</dd>
 </dl>
 </li>
 </ul>
 <a name="shipped--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>shipped</h4>
 <pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.314">shipped</a>()
              throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
 <div class="block">Called after a batch of rows scanned (RPC) and set to be returned to client. Any in between
  cleanup can be done here. Nothing to be done for MutableCellSetSegmentScanner.</div>
 <dl>
 <dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
 <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/Shipper.html#shipped--">shipped</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/Shipper.html" title="interface in org.apache.hadoop.hbase.regionserver">Shipper</a></code></dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="toString--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>toString</h4>
 <pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.320">toString</a>()</pre>
 <dl>
 <dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
 </dl>
 </li>
 </ul>
 <a name="getSegment--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>getSegment</h4>
 <pre>private&nbsp;<a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.329">getSegment</a>()</pre>
 <div class="block">Private Methods</div>
 </li>
 </ul>
 <a name="updateCurrent--">
 <!--   -->
 </a>
 <ul class="blockList">
 <li class="blockList">
 <h4>updateCurrent</h4>
 <pre>protected&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.336">updateCurrent</a>()</pre>
 <div class="block">Private internal method for iterating over the segment, skipping the cells with irrelevant MVCC</div>
 </li>
 </ul>
 <a name="getHighest-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-">
 <!--   -->
 </a>
 <ul class="blockListLast">
 <li class="blockList">
 <h4>getHighest</h4>
 <pre>private&nbsp;<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SegmentScanner.html#line.366">getHighest</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;first,
                         <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;second)</pre>
 <div class="block">Private internal method that returns the higher of the two key values, or null if they are both
  null</div>
 </li>
 </ul>
 </li>
 </ul>
 </li>
 </ul>
 </div>
 </div>
 <!-- ========= END OF CLASS DATA ========= -->
 <!-- ======= START OF BOTTOM NAVBAR ====== -->
 <div class="bottomNav"><a name="navbar.bottom">
 <!--   -->
 </a>
 <div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div>
 <a name="navbar.bottom.firstrow">
 <!--   -->
 </a>
 <ul class="navList" title="Navigation">
 <li><a href="../../../../../overview-summary.html">Overview</a></li>
 <li><a href="package-summary.html">Package</a></li>
 <li class="navBarCell1Rev">Class</li>
 <li><a href="class-use/SegmentScanner.html">Use</a></li>
 <li><a href="package-tree.html">Tree</a></li>
 <li><a href="../../../../../deprecated-list.html">Deprecated</a></li>
 <li><a href="../../../../../index-all.html">Index</a></li>
 <li><a href="../../../../../help-doc.html">Help</a></li>
 </ul>
 </div>
 <div class="subNav">
 <ul class="navList">
 <li><a href="../../../../../org/apache/hadoop/hbase/regionserver/SegmentFactory.html" title="class in org.apache.hadoop.hbase.regionserver"><span class="typeNameLink">Prev&nbsp;Class</span></a></li>
 <li><a href="../../../../../org/apache/hadoop/hbase/regionserver/SequenceId.html" title="interface in org.apache.hadoop.hbase.regionserver"><span class="typeNameLink">Next&nbsp;Class</span></a></li>
 </ul>
 <ul class="navList">
 <li><a href="../../../../../index.html?org/apache/hadoop/hbase/regionserver/SegmentScanner.html" target="_top">Frames</a></li>
 <li><a href="SegmentScanner.html" target="_top">No&nbsp;Frames</a></li>
 </ul>
 <ul class="navList" id="allclasses_navbar_bottom">
 <li><a href="../../../../../allclasses-noframe.html">All&nbsp;Classes</a></li>
 </ul>
 <div>
 <script type="text/javascript"><!--
   allClassesLink = document.getElementById("allclasses_navbar_bottom");
   if(window==top) {
     allClassesLink.style.display = "block";
   }
   else {
     allClassesLink.style.display = "none";
   }
   //-->
 </script>
 </div>
 <div>
 <ul class="subNavList">
 <li>Summary:&nbsp;</li>
 <li>Nested&nbsp;|&nbsp;</li>
 <li><a href="#field.summary">Field</a>&nbsp;|&nbsp;</li>
 <li><a href="#constructor.summary">Constr</a>&nbsp;|&nbsp;</li>
 <li><a href="#method.summary">Method</a></li>
 </ul>
 <ul class="subNavList">
 <li>Detail:&nbsp;</li>
 <li><a href="#field.detail">Field</a>&nbsp;|&nbsp;</li>
 <li><a href="#constructor.detail">Constr</a>&nbsp;|&nbsp;</li>
 <li><a href="#method.detail">Method</a></li>
 </ul>
 </div>
 <a name="skip.navbar.bottom">
 <!--   -->
 </a></div>
 <!-- ======== END OF BOTTOM NAVBAR ======= -->
 <p class="legalCopy"><small>Copyright &#169; 2007&#x2013;2020 <a href="https://www.apache.org/">The Apache Software Foundation</a>. All rights reserved.</small></p>
 </body>
 </html>