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| <div class="subTitle">org.apache.hadoop.hbase.regionserver</div> |
| <h2 title="Class StoreFileScanner" class="title">Class StoreFileScanner</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> |
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| <ul class="inheritance"> |
| <li>org.apache.hadoop.hbase.regionserver.StoreFileScanner</li> |
| </ul> |
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| </ul> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a>, <a href="../../../../../org/apache/hadoop/hbase/regionserver/Shipper.html" title="interface in org.apache.hadoop.hbase.regionserver">Shipper</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>@InterfaceAudience.LimitedPrivate(value="Phoenix") |
| @InterfaceStability.Evolving |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.51">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> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
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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"> </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> </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> </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> </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#delayedReseek">delayedReseek</a></span></code> </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> </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#enforceMVCC">enforceMVCC</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/StoreFileScanner.html#hasMVCCInfo">hasMVCCInfo</a></span></code> </td> |
| </tr> |
| <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> </td> |
| </tr> |
| <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> </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#readPt">readPt</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/StoreFileScanner.html#realSeekDone">realSeekDone</a></span></code> </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> </td> |
| </tr> |
| <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> </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#stopSkippingKVsIfNextRow">stopSkippingKVsIfNextRow</a></span></code> </td> |
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| <li class="blockList"><a name="fields.inherited.from.class.org.apache.hadoop.hbase.regionserver.KeyValueScanner"> |
| <!-- --> |
| </a> |
| <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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| </li> |
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| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
| <!-- --> |
| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> |
| <caption><span>Constructors</span><span class="tabEnd"> </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-">StoreFileScanner</a></span>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileReader.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileReader</a> reader, |
| <a href="../../../../../org/apache/hadoop/hbase/io/hfile/HFileScanner.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileScanner</a> hfs, |
| boolean useMVCC, |
| boolean hasMVCC, |
| long readPt, |
| long scannerOrder, |
| boolean canOptimizeForNonNullColumn)</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> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
| <!-- --> |
| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </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>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> 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> </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> </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> </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> </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><<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileScanner</a>></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><<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> files, |
| boolean canUseDropBehind, |
| long 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><<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileScanner</a>></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><<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> files, |
| boolean cacheBlocks, |
| boolean usePread, |
| boolean isCompaction, |
| boolean useDropBehind, |
| long 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><<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileScanner</a>></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><<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> files, |
| boolean cacheBlocks, |
| boolean usePread, |
| boolean isCompaction, |
| boolean canUseDrop, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/ScanQueryMatcher.html" title="class in org.apache.hadoop.hbase.regionserver.querymatcher">ScanQueryMatcher</a> matcher, |
| long 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> </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> </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> </td> |
| </tr> |
| <tr id="i14" 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#next--">next</a></span>()</code> |
| <div class="block">Return the next Cell in this scanner, iterating the scanner</div> |
| </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#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> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#realSeekDone--">realSeekDone</a></span>()</code> |
| <div class="block">We optimize our store scanners by checking the most recent store file |
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| store scanner bubbles up to the top of the key-value heap.</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#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> kv, |
| boolean forward, |
| boolean useBloom)</code> |
| <div class="block">Pretend we have done a seek but don't do it yet, if possible.</div> |
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| </tr> |
| <tr id="i18" 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#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> key)</code> |
| <div class="block">Reseek the scanner at or after the specified KeyValue.</div> |
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| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>(package private) static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#reseekAtOrAfter-org.apache.hadoop.hbase.io.hfile.HFileScanner-org.apache.hadoop.hbase.Cell-">reseekAtOrAfter</a></span>(<a href="../../../../../org/apache/hadoop/hbase/io/hfile/HFileScanner.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileScanner</a> s, |
| <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> k)</code> </td> |
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| <tr id="i20" 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#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> key)</code> |
| <div class="block">Seek the scanner at or after the specified KeyValue.</div> |
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| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#seekAtOrAfter-org.apache.hadoop.hbase.io.hfile.HFileScanner-org.apache.hadoop.hbase.Cell-">seekAtOrAfter</a></span>(<a href="../../../../../org/apache/hadoop/hbase/io/hfile/HFileScanner.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileScanner</a> s, |
| <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> k)</code> </td> |
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| <tr id="i22" 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> |
| <div class="block">Seek the scanner at the first KeyValue of last row</div> |
| </td> |
| </tr> |
| <tr id="i23" 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> originalKey)</code> |
| <div class="block">Seek the scanner at the first Cell of the row which is the previous row |
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| </tr> |
| <tr id="i24" class="altColor"> |
| <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> newVal)</code> </td> |
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| <tr id="i25" 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#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> scan, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/HStore.html" title="class in org.apache.hadoop.hbase.regionserver">HStore</a> store, |
| long oldestUnexpiredTS)</code> |
| <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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| <tr id="i27" class="rowColor"> |
| <td class="colFirst"><code>protected boolean</code></td> |
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| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#toString--">toString</a></span>()</code> </td> |
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| <pre>private final <a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileReader.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileReader</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.53">reader</a></pre> |
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| <a href="../../../../../org/apache/hadoop/hbase/io/hfile/HFileScanner.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileScanner</a> hfs, |
| boolean useMVCC, |
| boolean hasMVCC, |
| long readPt, |
| long scannerOrder, |
| boolean canOptimizeForNonNullColumn)</pre> |
| <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> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>useMVCC</code> - If true, scanner will filter out updates with MVCC larger than <code>readPt</code>.</dd> |
| <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 |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#getScannerOrder--"><code>KeyValueScanner.getScannerOrder()</code></a>.</dd> |
| <dd><code>canOptimizeForNonNullColumn</code> - <code>true</code> if we can make sure there is no null column, |
| otherwise <code>false</code>. This is a hint for optimization.</dd> |
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| <pre>public 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><<a href="../../../../../org/apache/hadoop/hbase/regionserver/StoreFileScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileScanner</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.103">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><<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> files, |
| boolean cacheBlocks, |
| boolean usePread, |
| boolean isCompaction, |
| boolean useDropBehind, |
| long 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.</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 <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/regionserver/StoreFileScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileScanner</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.114">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><<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> files, |
| boolean cacheBlocks, |
| boolean usePread, |
| boolean isCompaction, |
| boolean canUseDrop, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/querymatcher/ScanQueryMatcher.html" title="class in org.apache.hadoop.hbase.regionserver.querymatcher">ScanQueryMatcher</a> matcher, |
| long 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 <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/regionserver/StoreFileScanner.html" title="class in org.apache.hadoop.hbase.regionserver">StoreFileScanner</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.157">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><<a href="../../../../../org/apache/hadoop/hbase/regionserver/HStoreFile.html" title="class in org.apache.hadoop.hbase.regionserver">HStoreFile</a>> files, |
| boolean canUseDropBehind, |
| long 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 <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> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.180">toString</a>()</pre> |
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| <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> in class <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> |
| </dl> |
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| <a name="peek--"> |
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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/StoreFileScanner.html#line.185">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="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#peek--">peek</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="returnLabel">Returns:</span></dt> |
| <dd>the next Cell</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="next--"> |
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| <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/StoreFileScanner.html#line.190">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: <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> 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="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> |
| </dl> |
| </li> |
| </ul> |
| <a name="seek-org.apache.hadoop.hbase.Cell-"> |
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| </a> |
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| <h4>seek</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.211">seek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> 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: <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> 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="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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| <a name="reseek-org.apache.hadoop.hbase.Cell-"> |
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| <h4>reseek</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.239">reseek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> 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: <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> 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="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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| </li> |
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| <a name="setCurrentCell-org.apache.hadoop.hbase.Cell-"> |
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| <h4>setCurrentCell</h4> |
| <pre>protected void <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.266">setCurrentCell</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> 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> |
| </dl> |
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| </ul> |
| <a name="skipKVsNewerThanReadpoint--"> |
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| <h4>skipKVsNewerThanReadpoint</h4> |
| <pre>protected boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.273">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 void <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.296">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> |
| <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> 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> |
| <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> 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/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> |
| </dl> |
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| <a name="seekAtOrAfter-org.apache.hadoop.hbase.io.hfile.HFileScanner-org.apache.hadoop.hbase.Cell-"> |
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| <h4>seekAtOrAfter</h4> |
| <pre>public static boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.313">seekAtOrAfter</a>(<a href="../../../../../org/apache/hadoop/hbase/io/hfile/HFileScanner.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileScanner</a> s, |
| <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> 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="paramLabel">Parameters:</span></dt> |
| <dd><code>s</code> - </dd> |
| <dd><code>k</code> - </dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>false if not found or if k is after the end.</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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| </ul> |
| <a name="reseekAtOrAfter-org.apache.hadoop.hbase.io.hfile.HFileScanner-org.apache.hadoop.hbase.Cell-"> |
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| <h4>reseekAtOrAfter</h4> |
| <pre>static boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.332">reseekAtOrAfter</a>(<a href="../../../../../org/apache/hadoop/hbase/io/hfile/HFileScanner.html" title="interface in org.apache.hadoop.hbase.io.hfile">HFileScanner</a> s, |
| <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> 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> |
| </dl> |
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| </ul> |
| <a name="getScannerOrder--"> |
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| <ul class="blockList"> |
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| <h4>getScannerOrder</h4> |
| <pre>public long <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.358">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="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#getScannerOrder--">getScannerOrder</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="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#getScannerOrder--"><code>KeyValueScanner.getScannerOrder()</code></a></dd> |
| </dl> |
| </li> |
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| <a name="requestSeek-org.apache.hadoop.hbase.Cell-boolean-boolean-"> |
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| <h4>requestSeek</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.377">requestSeek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> kv, |
| boolean forward, |
| boolean 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> in interface <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html" title="interface in org.apache.hadoop.hbase.regionserver">KeyValueScanner</a></code></dd> |
| <dd><code>forward</code> - do a forward-only "reseek" instead of a random-access seek</dd> |
| <dd><code>useBloom</code> - whether to enable multi-column Bloom filter optimization</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
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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> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.438">getReader</a>()</pre> |
| </li> |
| </ul> |
| <a name="getComparator--"> |
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| <li class="blockList"> |
| <h4>getComparator</h4> |
| <pre><a href="../../../../../org/apache/hadoop/hbase/CellComparator.html" title="interface in org.apache.hadoop.hbase">CellComparator</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.442">getComparator</a>()</pre> |
| </li> |
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| <a name="realSeekDone--"> |
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| <h4>realSeekDone</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.447">realSeekDone</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <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> in interface <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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| <a name="enforceSeek--"> |
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| <h4>enforceSeek</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.452">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: <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> 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="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>isFileScanner</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.464">isFileScanner</a>()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#isFileScanner--">isFileScanner</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="returnLabel">Returns:</span></dt> |
| <dd>true if this is a file scanner. Otherwise a memory scanner is |
| assumed.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getFilePath--"> |
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| <h4>getFilePath</h4> |
| <pre>public org.apache.hadoop.fs.Path <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.469">getFilePath</a>()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#getFilePath--">getFilePath</a></code> 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="returnLabel">Returns:</span></dt> |
| <dd>the file path if this is a file scanner, otherwise null.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#isFileScanner--"><code>KeyValueScanner.isFileScanner()</code></a></dd> |
| </dl> |
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| <a name="getSeekCount--"> |
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| <h4>getSeekCount</h4> |
| <pre>static final long <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.474">getSeekCount</a>()</pre> |
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| <h4>instrument</h4> |
| <pre>static final void <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.478">instrument</a>()</pre> |
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| <h4>shouldUseScanner</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.483">shouldUseScanner</a>(<a href="../../../../../org/apache/hadoop/hbase/client/Scan.html" title="class in org.apache.hadoop.hbase.client">Scan</a> scan, |
| <a href="../../../../../org/apache/hadoop/hbase/regionserver/HStore.html" title="class in org.apache.hadoop.hbase.regionserver">HStore</a> store, |
| long oldestUnexpiredTS)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <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> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#shouldUseScanner-org.apache.hadoop.hbase.client.Scan-org.apache.hadoop.hbase.regionserver.HStore-long-">shouldUseScanner</a></code> 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="paramLabel">Parameters:</span></dt> |
| <dd><code>scan</code> - the scan that we are selecting scanners for</dd> |
| <dd><code>store</code> - the store we are performing the scan on.</dd> |
| <dd><code>oldestUnexpiredTS</code> - the oldest timestamp we are interested in for |
| this query, based on TTL</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the scanner should be included in the query</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="seekToPreviousRow-org.apache.hadoop.hbase.Cell-"> |
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| <h4>seekToPreviousRow</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.495">seekToPreviousRow</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> 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"><span class="descfrmTypeLabel">Description copied from interface: <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> 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="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> |
| </dl> |
| </li> |
| </ul> |
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| <h4>seekToLastRow</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.546">seekToLastRow</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <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> 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="returnLabel">Returns:</span></dt> |
| <dd>true if scanner has values left, false if the underlying data is |
| empty</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="backwardSeek-org.apache.hadoop.hbase.Cell-"> |
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| <h4>backwardSeek</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.560">backwardSeek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> 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: <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> 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="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> |
| </dl> |
| </li> |
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| <h4>getNextIndexedKey</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/StoreFileScanner.html#line.570">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> 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="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> |
| </dl> |
| </li> |
| </ul> |
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| <h4>shipped</h4> |
| <pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/StoreFileScanner.html#line.575">shipped</a>() |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block"><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 |
| 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> 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="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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