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| <div class="subTitle">org.apache.hadoop.hbase.regionserver</div> |
| <h2 title="Class SnapshotSegmentScanner" class="title">Class SnapshotSegmentScanner</h2> |
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| <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>org.apache.hadoop.hbase.regionserver.SnapshotSegmentScanner</li> |
| </ul> |
| </li> |
| </ul> |
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| <div class="description"> |
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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/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/SnapshotSegmentScanner.html#line.35">SnapshotSegmentScanner</a> |
| extends <a href="../../../../../org/apache/hadoop/hbase/regionserver/NonReversedNonLazyKeyValueScanner.html" title="class in org.apache.hadoop.hbase.regionserver">NonReversedNonLazyKeyValueScanner</a></pre> |
| <div class="block">A basic SegmentScanner used against an ImmutableScanner snapshot |
| Used flushing where we do a single pass, no reverse scanning or |
| inserts happening. Its a dumbed-down Scanner that can go fast. |
| Like <a href="../../../../../org/apache/hadoop/hbase/util/CollectionBackedScanner.html" title="class in org.apache.hadoop.hbase.util"><code>CollectionBackedScanner</code></a> |
| (but making it know about Segments was onerous).</div> |
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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> |
| </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/SnapshotSegmentScanner.html#current">current</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/Iterator.html?is-external=true" title="class or interface in java.util">Iterator</a><<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/SnapshotSegmentScanner.html#iter">iter</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">ImmutableSegment</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SnapshotSegmentScanner.html#segment">segment</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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| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SnapshotSegmentScanner.html#SnapshotSegmentScanner-org.apache.hadoop.hbase.regionserver.ImmutableSegment-">SnapshotSegmentScanner</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">ImmutableSegment</a> segment)</code> </td> |
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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"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></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/SnapshotSegmentScanner.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 static <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><<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/SnapshotSegmentScanner.html#createIterator-org.apache.hadoop.hbase.regionserver.Segment-">createIterator</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/Segment.html" title="class in org.apache.hadoop.hbase.regionserver">Segment</a> segment)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SnapshotSegmentScanner.html#getScannerOrder--">getScannerOrder</a></span>()</code> |
| <div class="block">Get the order of this KeyValueScanner.</div> |
| </td> |
| </tr> |
| <tr id="i3" 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/SnapshotSegmentScanner.html#next--">next</a></span>()</code> |
| <div class="block">Return the next Cell in this scanner, iterating the scanner</div> |
| </td> |
| </tr> |
| <tr id="i4" 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/SnapshotSegmentScanner.html#peek--">peek</a></span>()</code> |
| <div class="block">Look at the next Cell in this scanner, but do not iterate scanner.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SnapshotSegmentScanner.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> seekCell)</code> |
| <div class="block">Reseek the scanner at or after the specified KeyValue.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/SnapshotSegmentScanner.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> seekCell)</code> |
| <div class="block">Seek the scanner at or after the specified KeyValue.</div> |
| </td> |
| </tr> |
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| </a> |
| <h3>Methods inherited from class org.apache.hadoop.hbase.regionserver.<a href="../../../../../org/apache/hadoop/hbase/regionserver/NonReversedNonLazyKeyValueScanner.html" title="class in org.apache.hadoop.hbase.regionserver">NonReversedNonLazyKeyValueScanner</a></h3> |
| <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/NonReversedNonLazyKeyValueScanner.html#backwardSeek-org.apache.hadoop.hbase.Cell-">backwardSeek</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/NonReversedNonLazyKeyValueScanner.html#seekToLastRow--">seekToLastRow</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/NonReversedNonLazyKeyValueScanner.html#seekToPreviousRow-org.apache.hadoop.hbase.Cell-">seekToPreviousRow</a></code></li> |
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| <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html#doRealSeek-org.apache.hadoop.hbase.regionserver.KeyValueScanner-org.apache.hadoop.hbase.Cell-boolean-">doRealSeek</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html#enforceSeek--">enforceSeek</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html#getFilePath--">getFilePath</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html#getNextIndexedKey--">getNextIndexedKey</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html#isFileScanner--">isFileScanner</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html#realSeekDone--">realSeekDone</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html#requestSeek-org.apache.hadoop.hbase.Cell-boolean-boolean-">requestSeek</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html#shipped--">shipped</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html#shouldUseScanner-org.apache.hadoop.hbase.client.Scan-org.apache.hadoop.hbase.regionserver.HStore-long-">shouldUseScanner</a></code></li> |
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| <pre>private final <a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">ImmutableSegment</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SnapshotSegmentScanner.html#line.36">segment</a></pre> |
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| <h4>iter</h4> |
| <pre>private <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><<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/SnapshotSegmentScanner.html#line.37">iter</a></pre> |
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| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SnapshotSegmentScanner.html#line.40">SnapshotSegmentScanner</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/ImmutableSegment.html" title="class in org.apache.hadoop.hbase.regionserver">ImmutableSegment</a> segment)</pre> |
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| <h4>createIterator</h4> |
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| <h4>peek</h4> |
| <pre>public <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/SnapshotSegmentScanner.html#line.54">peek</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <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="returnLabel">Returns:</span></dt> |
| <dd>the next Cell</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="next--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>next</h4> |
| <pre>public <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/SnapshotSegmentScanner.html#line.59">next</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <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="returnLabel">Returns:</span></dt> |
| <dd>the next Cell</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="seek-org.apache.hadoop.hbase.Cell-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>seek</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SnapshotSegmentScanner.html#line.70">seek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> seekCell)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <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="paramLabel">Parameters:</span></dt> |
| <dd><code>seekCell</code> - seek value</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if scanner has values left, false if end of scanner</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="reseek-org.apache.hadoop.hbase.Cell-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>reseek</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SnapshotSegmentScanner.html#line.77">reseek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> seekCell)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <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="paramLabel">Parameters:</span></dt> |
| <dd><code>seekCell</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> |
| </dl> |
| </li> |
| </ul> |
| <a name="getScannerOrder--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getScannerOrder</h4> |
| <pre>public long <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SnapshotSegmentScanner.html#line.93">getScannerOrder</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <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="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#getScannerOrder--"><code>KeyValueScanner.getScannerOrder()</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="close--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>close</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/SnapshotSegmentScanner.html#line.98">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> |
| </li> |
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