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<div class="subTitle">org.apache.hadoop.hbase.regionserver</div>
<h2 title="Class StoreFileScanner" class="title">Class StoreFileScanner</h2>
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<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>
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<li>org.apache.hadoop.hbase.regionserver.StoreFileScanner</li>
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<div class="description">
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<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>
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<pre>@InterfaceAudience.LimitedPrivate(value="Phoenix")
@InterfaceStability.Evolving
public class <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.48">StoreFileScanner</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">KeyValueScanner adaptor over the Reader. It also provides hooks into bloom filter things.</div>
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</ul>
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<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>private boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#canOptimizeForNonNullColumn">canOptimizeForNonNullColumn</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#closed">closed</a></span></code>&nbsp;</td>
</tr>
<tr 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/StoreFileScanner.html#cur">cur</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>private boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#delayedReseek">delayedReseek</a></span></code>&nbsp;</td>
</tr>
<tr 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/StoreFileScanner.html#delayedSeekKV">delayedSeekKV</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>private boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#enforceMVCC">enforceMVCC</a></span></code>&nbsp;</td>
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<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/StoreFileScanner.html#hasMVCCInfo">hasMVCCInfo</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/io/hfile/HFileScanner.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileScanner</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#hfs">hfs</a></span></code>&nbsp;</td>
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<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/StoreFileScanner.html#isFastSeekingEncoding">isFastSeekingEncoding</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/StoreFileScanner.html#previousRow">previousRow</a></span></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileReader.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileReader</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#reader">reader</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>private long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#readPt">readPt</a></span></code>&nbsp;</td>
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<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/StoreFileScanner.html#realSeekDone">realSeekDone</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#scannerOrder">scannerOrder</a></span></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>private static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/LongAdder.html?is-external=true" title="class or interface in java.util.concurrent.atomic">LongAdder</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#seekCount">seekCount</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>private boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#stopSkippingKVsIfNextRow">stopSkippingKVsIfNextRow</a></span></code>&nbsp;</td>
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<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>
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<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="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#StoreFileScanner-org.apache.hadoop.hbase.regionserver.StoreFileReader-org.apache.hadoop.hbase.io.hfile.HFileScanner-boolean-boolean-long-long-boolean-boolean-">StoreFileScanner</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileReader.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileReader</a>&nbsp;reader,
<a href="../../../../../org/apache/hadoop/hbase/io/hfile/HFileScanner.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileScanner</a>&nbsp;hfs,
boolean&nbsp;useMVCC,
boolean&nbsp;hasMVCC,
long&nbsp;readPt,
long&nbsp;scannerOrder,
boolean&nbsp;canOptimizeForNonNullColumn,
boolean&nbsp;isFastSeekingEncoding)</code>
<div class="block">Implements a <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver"><code>KeyValueScanner</code></a> on top of the specified <a href="../../../../../org/apache/hadoop/hbase/io/hfile/HFileScanner.html" title="interface in org.apache.hadoop.hbase.io.hfile"><code>HFileScanner</code></a></div>
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<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="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></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/StoreFileScanner.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/StoreFileScanner.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/StoreFileScanner.html#enforceSeek--">enforceSeek</a></span>()</code>
<div class="block">Does the real seek operation in case it was skipped by seekToRowCol(KeyValue, boolean) (TODO:
Whats this?).</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>(package private) <a href="../../../../../org/apache/hadoop/hbase/CellComparator.html" title="interface in org.apache.hadoop.hbase">CellComparator</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#getComparator--">getComparator</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<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/StoreFileScanner.html#getFilePath--">getFilePath</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i5" 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/StoreFileScanner.html#getNextIndexedKey--">getNextIndexedKey</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>(package private) <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileReader.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileReader</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#getReader--">getReader</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#getScannerOrder--">getScannerOrder</a></span>()</code>
<div class="block">Get the order of this KeyValueScanner.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileScanner</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#getScannersForCompaction-java.util.Collection-boolean-long-">getScannersForCompaction</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>&gt;&nbsp;files,
boolean&nbsp;canUseDropBehind,
long&nbsp;readPt)</code>
<div class="block">Get scanners for compaction.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileScanner</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#getScannersForStoreFiles-java.util.Collection-boolean-boolean-boolean-boolean-long-">getScannersForStoreFiles</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>&gt;&nbsp;files,
boolean&nbsp;cacheBlocks,
boolean&nbsp;usePread,
boolean&nbsp;isCompaction,
boolean&nbsp;useDropBehind,
long&nbsp;readPt)</code>
<div class="block">Return an array of scanners corresponding to the given set of store files.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileScanner</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#getScannersForStoreFiles-java.util.Collection-boolean-boolean-boolean-boolean-org.apache.hadoop.hbase.regionserver.querymatcher.ScanQueryMatcher-long-">getScannersForStoreFiles</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>&gt;&nbsp;files,
boolean&nbsp;cacheBlocks,
boolean&nbsp;usePread,
boolean&nbsp;isCompaction,
boolean&nbsp;canUseDrop,
<a href="../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/ScanQueryMatcher.html" title="class in org.apache.hadoop.hbase.regionserver.querymatcher">ScanQueryMatcher</a>&nbsp;matcher,
long&nbsp;readPt)</code>
<div class="block">Return an array of scanners corresponding to the given set of store files, And set the
ScanQueryMatcher for each store file scanner for further optimization</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>(package private) static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#getSeekCount--">getSeekCount</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>(package private) static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#instrument--">instrument</a></span>()</code>&nbsp;</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/StoreFileScanner.html#isFileScanner--">isFileScanner</a></span>()</code>
<div class="block">Returns true if this is a file scanner.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>private boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#isStillAtSeekTargetAfterSkippingNewerKvs-org.apache.hadoop.hbase.Cell-">isStillAtSeekTargetAfterSkippingNewerKvs</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;seekKey)</code>&nbsp;</td>
</tr>
<tr id="i15" 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/StoreFileScanner.html#next--">next</a></span>()</code>
<div class="block">Return the next Cell in this scanner, iterating the scanner</div>
</td>
</tr>
<tr id="i16" 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/StoreFileScanner.html#peek--">peek</a></span>()</code>
<div class="block">Look at the next Cell in this scanner, but do not iterate scanner.</div>
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<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/StoreFileScanner.html#realSeekDone--">realSeekDone</a></span>()</code>
<div class="block">We optimize our store scanners by checking the most recent store file first, so we sometimes
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key-value heap.</div>
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<tr id="i18" class="altColor">
<td class="colFirst"><code>void</code></td>
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<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/StoreFileScanner.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;kv,
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<div class="block">Pretend we have done a seek but don't do it yet, if possible.</div>
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<tr id="i20" class="altColor">
<td class="colFirst"><code>boolean</code></td>
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<div class="block">Reseek the scanner at or after the specified KeyValue.</div>
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<td class="colFirst"><code>private boolean</code></td>
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<td class="colFirst"><code>(package private) static boolean</code></td>
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<td class="colFirst"><code>boolean</code></td>
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<td class="colFirst"><code>private boolean</code></td>
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<td class="colFirst"><code>static boolean</code></td>
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<td class="colFirst"><code>private boolean</code></td>
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<td class="colFirst"><code>private void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#seekBeforeAndSaveKeyToPreviousRow-org.apache.hadoop.hbase.Cell-">seekBeforeAndSaveKeyToPreviousRow</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;seekKey)</code>
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<tr id="i28" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#seekToLastRow--">seekToLastRow</a></span>()</code>
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<tr id="i29" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.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;originalKey)</code>
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<td class="colFirst"><code>private boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#seekToPreviousRowStateless-org.apache.hadoop.hbase.Cell-">seekToPreviousRowStateless</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;originalKey)</code>
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<tr id="i31" class="rowColor">
<td class="colFirst"><code>private boolean</code></td>
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<td class="colFirst"><code>private boolean</code></td>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#setCurrentCell-org.apache.hadoop.hbase.Cell-">setCurrentCell</a></span>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;newVal)</code>&nbsp;</td>
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<tr id="i34" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#shipped--">shipped</a></span>()</code>
<div class="block">Called after a batch of rows scanned and set to be returned to client.</div>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.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,
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<div class="block">Allows to filter out scanners (both StoreFile and memstore) that we don't want to use based on
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<td class="colFirst"><code>protected boolean</code></td>
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<td class="colFirst"><code>private boolean</code></td>
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boolean&nbsp;useMVCC,
boolean&nbsp;hasMVCC,
long&nbsp;readPt,
long&nbsp;scannerOrder,
boolean&nbsp;canOptimizeForNonNullColumn,
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<dd><code>readPt</code> - MVCC value to use to filter out the updates newer than this
scanner.</dd>
<dd><code>hasMVCC</code> - Set to true if underlying store file reader has MVCC info.</dd>
<dd><code>scannerOrder</code> - Order of the scanner relative to other scanners. See
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<dd><code>canOptimizeForNonNullColumn</code> - <code>true</code> if we can make sure there is no null column,
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<dd><code>isFastSeekingEncoding</code> - <code>true</code> if the data block encoding can seek quickly
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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileScanner</a>&gt;&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.125">getScannersForStoreFiles</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>&gt;&nbsp;files,
boolean&nbsp;cacheBlocks,
boolean&nbsp;usePread,
boolean&nbsp;isCompaction,
boolean&nbsp;canUseDrop,
<a href="../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/ScanQueryMatcher.html" title="class in org.apache.hadoop.hbase.regionserver.querymatcher">ScanQueryMatcher</a>&nbsp;matcher,
long&nbsp;readPt)
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 an array of scanners corresponding to the given set of store files, And set the
ScanQueryMatcher for each store file scanner for further optimization</div>
<dl>
<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>
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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileScanner</a>&gt;&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.168">getScannersForCompaction</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>&gt;&nbsp;files,
boolean&nbsp;canUseDropBehind,
long&nbsp;readPt)
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">Get scanners for compaction. We will create a separated reader for each store file to avoid
contention with normal read request.</div>
<dl>
<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>
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<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/StoreFileScanner.html#line.191">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>
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<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/StoreFileScanner.html#line.196">peek</a>()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#peek--">KeyValueScanner</a></code></span></div>
<div class="block">Look at the next Cell in this scanner, but do not iterate scanner. NOTICE: The returned cell
has not been passed into ScanQueryMatcher. So it may not be what the user need.</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 next Cell</dd>
</dl>
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<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/StoreFileScanner.html#line.201">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"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#next--">KeyValueScanner</a></code></span></div>
<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</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>
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<h4>seek</h4>
<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.222">seek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;key)
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<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#seek-org.apache.hadoop.hbase.Cell-">KeyValueScanner</a></code></span></div>
<div class="block">Seek the scanner at or after the specified KeyValue.</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>key</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>
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<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.251">reseek</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"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#reseek-org.apache.hadoop.hbase.Cell-">KeyValueScanner</a></code></span></div>
<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>key</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>
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<pre>protected&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.278">setCurrentCell</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;newVal)
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>
<dl>
<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>
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<pre>protected&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.285">skipKVsNewerThanReadpoint</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>
<dl>
<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>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.307">close</a>()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#close--">KeyValueScanner</a></code></span></div>
<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>
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<h4>seekAtOrAfter</h4>
<pre>public static&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.318">seekAtOrAfter</a>(<a href="../../../../../org/apache/hadoop/hbase/io/hfile/HFileScanner.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileScanner</a>&nbsp;s,
<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;k)
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">Returns false if not found or if k is after the end.</div>
<dl>
<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>
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<a name="reseekAtOrAfter-org.apache.hadoop.hbase.io.hfile.HFileScanner-org.apache.hadoop.hbase.Cell-">
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<h4>reseekAtOrAfter</h4>
<pre>static&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.336">reseekAtOrAfter</a>(<a href="../../../../../org/apache/hadoop/hbase/io/hfile/HFileScanner.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileScanner</a>&nbsp;s,
<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;k)
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>
<dl>
<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>
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<h4>getScannerOrder</h4>
<pre>public&nbsp;long&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.361">getScannerOrder</a>()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#getScannerOrder--">KeyValueScanner</a></code></span></div>
<div class="block">Get the order of this KeyValueScanner. This is only relevant for StoreFileScanners. This is
required for comparing multiple files to find out which one has the latest data.
StoreFileScanners are ordered from 0 (oldest) to newest in increasing order.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#getScannerOrder--">getScannerOrder</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="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#getScannerOrder--"><code>KeyValueScanner.getScannerOrder()</code></a></dd>
</dl>
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<h4>requestSeek</h4>
<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.378">requestSeek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;kv,
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">Pretend we have done a seek but don't do it yet, if possible. The hope is that we find
requested columns in more recent files and won't have to seek in older files. Creates a fake
key/value with the given row/column and the highest (most recent) possible timestamp we might
get from this file. When users of such "lazy scanner" need to know the next KV precisely (e.g.
when this scanner is at the top of the heap), they run <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#enforceSeek--"><code>enforceSeek()</code></a>.
<p>
Note that this function does guarantee that the current KV of this scanner will be advanced to
at least the given KV. Because of this, it does have to do a real seek in cases when the seek
timestamp is older than the highest timestamp of the file, e.g. when we are trying to seek to
the next row/column and use OLDEST_TIMESTAMP in the seek key.</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>
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<h4>getReader</h4>
<pre><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileReader.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileReader</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.439">getReader</a>()</pre>
</li>
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<h4>getComparator</h4>
<pre><a href="../../../../../org/apache/hadoop/hbase/CellComparator.html" title="interface in org.apache.hadoop.hbase">CellComparator</a>&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.443">getComparator</a>()</pre>
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<h4>realSeekDone</h4>
<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.448">realSeekDone</a>()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#realSeekDone--">KeyValueScanner</a></code></span></div>
<div class="block">We optimize our store scanners by checking the most recent store file first, so we sometimes
pretend we have done a seek but delay it until the store scanner bubbles up to the top of the
key-value heap. This method is then used to ensure the top store file scanner has done a seek
operation.</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>
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<h4>enforceSeek</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.453">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"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#enforceSeek--">KeyValueScanner</a></code></span></div>
<div class="block">Does the real seek operation in case it was skipped by seekToRowCol(KeyValue, boolean) (TODO:
Whats this?). Note that this function should be never called on scanners that always do real
seek operations (i.e. most of the scanners). The easiest way to achieve this is to call
<a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#realSeekDone--"><code>KeyValueScanner.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>
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<h4>isFileScanner</h4>
<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.464">isFileScanner</a>()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#isFileScanner--">KeyValueScanner</a></code></span></div>
<div class="block">Returns true if this is a file scanner. Otherwise a memory scanner is assumed.</div>
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<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>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.469">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>
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<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>
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<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.488">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"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#shouldUseScanner-org.apache.hadoop.hbase.client.Scan-org.apache.hadoop.hbase.regionserver.HStore-long-">KeyValueScanner</a></code></span></div>
<div class="block">Allows to filter out scanners (both StoreFile and memstore) that we don't want to use based on
criteria such as Bloom filters and timestamp ranges.</div>
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<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>
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<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.501">seekToPreviousRow</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;originalKey)
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<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#seekToPreviousRow-org.apache.hadoop.hbase.Cell-">KeyValueScanner</a></code></span></div>
<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>originalKey</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>
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<pre>private&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.528">seekToPreviousRowWithHint</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 variant of the <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#seekToPreviousRow-org.apache.hadoop.hbase.Cell-"><code>seekToPreviousRow(Cell)</code></a> method requires one seek
and one reseek. This method maintains state in <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#previousRow"><code>previousRow</code></a> which only
makes sense in the context of a sequential row-by-row reverse scan.
<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#previousRow"><code>previousRow</code></a> should be reset if that is not the case. The reasoning for
why this method is faster than <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#seekToPreviousRowStateless-org.apache.hadoop.hbase.Cell-"><code>seekToPreviousRowStateless(Cell)</code></a> is
that seeks are slower as they need to start from the beginning of the file, while reseeks go
forward from the current position.</div>
<dl>
<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>
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<pre>private&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.561">seekToPreviousRowWithoutHint</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;originalKey)
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<div class="block">This variant of the <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#seekToPreviousRow-org.apache.hadoop.hbase.Cell-"><code>seekToPreviousRow(Cell)</code></a> method requires two seeks
and one reseek. The extra expense/seek is with the intent of speeding up subsequent calls by
using the <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#seekToPreviousRowWithHint--"><code>seekToPreviousRowWithHint()</code></a> which this method seeds the state
for by setting <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#previousRow"><code>previousRow</code></a></div>
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<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>
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<pre>private&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.601">seekToPreviousRowStateless</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;originalKey)
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 variant of the <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#seekToPreviousRow-org.apache.hadoop.hbase.Cell-"><code>seekToPreviousRow(Cell)</code></a> method requires two seeks.
It should be used if the cost for seeking is lower i.e. when using a fast seeking data block
encoding like RIV1.</div>
<dl>
<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>
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<dl>
<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>
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<pre>private&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.641">seekBeforeAndSaveKeyToPreviousRow</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>&nbsp;seekKey)
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<div class="block">Seeks before the seek target cell and saves the location to <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#previousRow"><code>previousRow</code></a>. If there
doesn't exist a KV in this file before the seek target cell, reposition the scanner at the
beginning of the storefile (in preparation to a reseek at or after the seek key) and set the
<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#previousRow"><code>previousRow</code></a> to null. If <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#previousRow"><code>previousRow</code></a> is ever non-null and then transitions to
being null again via this method, that's because there doesn't exist a row before the seek
target in the storefile (i.e. we're at the beginning of the storefile)</div>
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<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>
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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>
<dl>
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<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>
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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>
<dl>
<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>
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<dl>
<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>
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<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>
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<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.698">seekToLastRow</a>()
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<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#seekToLastRow--">KeyValueScanner</a></code></span></div>
<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>
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<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#backwardSeek-org.apache.hadoop.hbase.Cell-">KeyValueScanner</a></code></span></div>
<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 KeyValue</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if the scanner is at the valid KeyValue, false if such KeyValue 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>
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<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/StoreFileScanner.html#line.721">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, usually the first key of next block OR a key that falls
between last key of current block and first key of next block.. see
HFileWriterImpl#getMidpoint, or null if not known.</dd>
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<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../org/apache/hadoop/hbase/regionserver/Shipper.html#shipped--">Shipper</a></code></span></div>
<div class="block">Called after a batch of rows scanned and set to be returned to client. Any in between cleanup
can be done here.</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>
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