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| <div class="subTitle">org.apache.hadoop.hbase.regionserver</div> |
| <h2 title="Class MobStoreScanner" class="title">Class MobStoreScanner</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><a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html" title="class in org.apache.hadoop.hbase.regionserver">org.apache.hadoop.hbase.regionserver.NonLazyKeyValueScanner</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/hadoop/hbase/regionserver/NonReversedNonLazyKeyValueScanner.html" title="class in org.apache.hadoop.hbase.regionserver">org.apache.hadoop.hbase.regionserver.NonReversedNonLazyKeyValueScanner</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html" title="class in org.apache.hadoop.hbase.regionserver">org.apache.hadoop.hbase.regionserver.StoreScanner</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.hadoop.hbase.regionserver.MobStoreScanner</li> |
| </ul> |
| </li> |
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| <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/ChangedReadersObserver.html" title="interface in org.apache.hadoop.hbase.regionserver">ChangedReadersObserver</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</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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| <hr> |
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| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MobStoreScanner.html#line.39">MobStoreScanner</a> |
| extends <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreScanner</a></pre> |
| <div class="block">Scanner scans both the memstore and the MOB Store. Coalesce KeyValue stream into |
| <code>List<KeyValue></code> for a single row.</div> |
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| <h3>Field Summary</h3> |
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| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
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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/MobStoreScanner.html#cacheMobBlocks">cacheMobBlocks</a></span></code> </td> |
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| <td class="colFirst"><code>private static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MobStoreScanner.html#LOG">LOG</a></span></code> </td> |
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| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/HMobStore.html" title="class in org.apache.hadoop.hbase.regionserver">HMobStore</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MobStoreScanner.html#mobStore">mobStore</a></span></code> </td> |
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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/MobStoreScanner.html#rawMobScan">rawMobScan</a></span></code> </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/MobStoreScanner.html#readEmptyValueOnMobCellMiss">readEmptyValueOnMobCellMiss</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <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><<a href="../../../../../org/apache/hadoop/hbase/mob/MobCell.html" title="class in org.apache.hadoop.hbase.mob">MobCell</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MobStoreScanner.html#referencedMobCells">referencedMobCells</a></span></code> </td> |
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| <h3>Fields inherited from interface 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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| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
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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"> </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/MobStoreScanner.html#MobStoreScanner-org.apache.hadoop.hbase.regionserver.HStore-org.apache.hadoop.hbase.regionserver.ScanInfo-org.apache.hadoop.hbase.client.Scan-java.util.NavigableSet-long-">MobStoreScanner</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStore.html" title="class in org.apache.hadoop.hbase.regionserver">HStore</a> store, |
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| long readPt)</code> </td> |
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| <!-- ========== METHOD SUMMARY =========== --> |
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| </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"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </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>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MobStoreScanner.html#close--">close</a></span>()</code> |
| <div class="block">Close the KeyValue scanner.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MobStoreScanner.html#freeAllReferencedMobCells--">freeAllReferencedMobCells</a></span>()</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MobStoreScanner.html#next-java.util.List-org.apache.hadoop.hbase.regionserver.ScannerContext-">next</a></span>(<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><<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>> outResult, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScannerContext.html" title="class in org.apache.hadoop.hbase.regionserver">ScannerContext</a> ctx)</code> |
| <div class="block">Firstly reads the cells from the HBase.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/MobStoreScanner.html#shipped--">shipped</a></span>()</code> |
| <div class="block">Called after a batch of rows scanned and set to be returned to client.</div> |
| </td> |
| </tr> |
| </table> |
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| <li class="blockList"><a name="methods.inherited.from.class.org.apache.hadoop.hbase.regionserver.StoreScanner"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.hadoop.hbase.regionserver.<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreScanner</a></h3> |
| <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#checkFlushed--">checkFlushed</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#checkScanOrder-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.Cell-org.apache.hadoop.hbase.CellComparator-">checkScanOrder</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#enableLazySeekGlobally-boolean-">enableLazySeekGlobally</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#getAllScannersForTesting--">getAllScannersForTesting</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#getEstimatedNumberOfKvsScanned--">getEstimatedNumberOfKvsScanned</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#getNextIndexedKey--">getNextIndexedKey</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#getReadPoint--">getReadPoint</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#isScanUsePread--">isScanUsePread</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#newKVHeap-java.util.List-org.apache.hadoop.hbase.CellComparator-">newKVHeap</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#next--">next</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#peek--">peek</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#reopenAfterFlush--">reopenAfterFlush</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#reseek-org.apache.hadoop.hbase.Cell-">reseek</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#resetKVHeap-java.util.List-org.apache.hadoop.hbase.CellComparator-">resetKVHeap</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#seek-org.apache.hadoop.hbase.Cell-">seek</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#seekAsDirection-org.apache.hadoop.hbase.Cell-">seekAsDirection</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#seekScanners-java.util.List-org.apache.hadoop.hbase.Cell-boolean-boolean-">seekScanners</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#seekToNextRow-org.apache.hadoop.hbase.Cell-">seekToNextRow</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#selectScannersFrom-org.apache.hadoop.hbase.regionserver.HStore-java.util.List-">selectScannersFrom</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#trySkipToNextColumn-org.apache.hadoop.hbase.Cell-">trySkipToNextColumn</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#trySkipToNextRow-org.apache.hadoop.hbase.Cell-">trySkipToNextRow</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#trySwitchToStreamRead--">trySwitchToStreamRead</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#updateReaders-java.util.List-java.util.List-">updateReaders</a></code></li> |
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| <h3>Constructor Detail</h3> |
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| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MobStoreScanner.html#line.49">MobStoreScanner</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStore.html" title="class in org.apache.hadoop.hbase.regionserver">HStore</a> store, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScanInfo.html" title="class in org.apache.hadoop.hbase.regionserver">ScanInfo</a> scanInfo, |
| <a href="../../../../../org/apache/hadoop/hbase/client/Scan.html" title="class in org.apache.hadoop.hbase.client">Scan</a> scan, |
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| long readPt) |
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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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| <h3>Method Detail</h3> |
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| <h4>next</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MobStoreScanner.html#line.68">next</a>(<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><<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a>> outResult, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/ScannerContext.html" title="class in org.apache.hadoop.hbase.regionserver">ScannerContext</a> ctx) |
| 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">Firstly reads the cells from the HBase. If the cell are a reference cell (which has the |
| reference tag), the scanner need seek this cell from the mob file, and use the cell found |
| from the mob file as the result.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html#next-java.util.List-org.apache.hadoop.hbase.regionserver.ScannerContext-">next</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#next-java.util.List-org.apache.hadoop.hbase.regionserver.ScannerContext-">next</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreScanner</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>outResult</code> - return output array</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if there are more rows, false if scanner is done</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> - e</dd> |
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| <h4>freeAllReferencedMobCells</h4> |
| <pre>private void <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MobStoreScanner.html#line.95">freeAllReferencedMobCells</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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| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <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 |
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| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/Shipper.html#shipped--">shipped</a></code> in interface <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="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#shipped--">shipped</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreScanner</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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| <h4>close</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MobStoreScanner.html#line.109">close</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <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> |
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| <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> in interface <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> |
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| <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> in interface <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/InternalScanner.html#close--">close</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/InternalScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">InternalScanner</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> in interface <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="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html#close--">close</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreScanner</a></code></dd> |
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