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cassandra-server

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A thin Javascript wrapper around Apache Cassandra to provide out of the box server support

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!-- NewPage --> <html lang="en"> <head> <!-- Generated by javadoc (version 1.7.0_67) on Sun Sep 07 15:29:35 CEST 2014 --> <title>StatsMetadata (apache-cassandra API)</title> <meta name="date" content="2014-09-07"> <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> </head> <body> <script type="text/javascript"><!-- if (location.href.indexOf('is-external=true') == -1) { parent.document.title="StatsMetadata (apache-cassandra API)"; } //--> </script> <noscript> <div>JavaScript is disabled on your browser.</div> </noscript> <!-- ========= START OF TOP NAVBAR ======= --> <div class="topNav"><a name="navbar_top"> <!-- --> </a><a href="#skip-navbar_top" title="Skip navigation links"></a><a name="navbar_top_firstrow"> <!-- --> </a> <ul class="navList" title="Navigation"> <li><a href="../../../../../../overview-summary.html">Overview</a></li> <li><a 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name="skip-navbar_top"> <!-- --> </a></div> <!-- ========= END OF TOP NAVBAR ========= --> <!-- ======== START OF CLASS DATA ======== --> <div class="header"> <div class="subTitle">org.apache.cassandra.io.sstable.metadata</div> <h2 title="Class StatsMetadata" class="title">Class StatsMetadata</h2> </div> <div class="contentContainer"> <ul class="inheritance"> <li>java.lang.Object</li> <li> <ul class="inheritance"> <li><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/MetadataComponent.html" title="class in org.apache.cassandra.io.sstable.metadata">org.apache.cassandra.io.sstable.metadata.MetadataComponent</a></li> <li> <ul class="inheritance"> <li>org.apache.cassandra.io.sstable.metadata.StatsMetadata</li> </ul> </li> </ul> </li> </ul> <div class="description"> <ul class="blockList"> <li class="blockList"> <dl> <dt>All Implemented Interfaces:</dt> <dd>java.lang.Comparable&lt;<a href="../../../../../../org/apache/cassandra/io/sstable/metadata/MetadataComponent.html" title="class in org.apache.cassandra.io.sstable.metadata">MetadataComponent</a>&gt;</dd> </dl> <hr> <br> <pre>public class <span class="strong">StatsMetadata</span> extends <a href="../../../../../../org/apache/cassandra/io/sstable/metadata/MetadataComponent.html" title="class in org.apache.cassandra.io.sstable.metadata">MetadataComponent</a></pre> <div class="block">SSTable metadata that always stay on heap.</div> </li> </ul> </div> <div class="summary"> <ul class="blockList"> <li class="blockList"> <!-- ======== NESTED CLASS SUMMARY ======== --> <ul class="blockList"> <li class="blockList"><a name="nested_class_summary"> <!-- --> </a> <h3>Nested Class Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Nested Class Summary table, listing nested classes, and an explanation"> <caption><span>Nested Classes</span><span class="tabEnd">&nbsp;</span></caption> <tr> <th class="colFirst" scope="col">Modifier and Type</th> <th class="colLast" scope="col">Class and Description</th> </tr> <tr class="altColor"> <td class="colFirst"><code>static class&nbsp;</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.StatsMetadataSerializer.html" title="class in org.apache.cassandra.io.sstable.metadata">StatsMetadata.StatsMetadataSerializer</a></strong></code>&nbsp;</td> </tr> </table> </li> </ul> <!-- =========== FIELD SUMMARY =========== --> <ul class="blockList"> <li class="blockList"><a name="field_summary"> <!-- --> </a> <h3>Field Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> <caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption> <tr> <th class="colFirst" scope="col">Modifier and Type</th> <th class="colLast" scope="col">Field and Description</th> </tr> <tr class="altColor"> <td class="colFirst"><code>double</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#compressionRatio">compressionRatio</a></strong></code>&nbsp;</td> </tr> <tr class="rowColor"> <td class="colFirst"><code><a href="../../../../../../org/apache/cassandra/utils/EstimatedHistogram.html" title="class in org.apache.cassandra.utils">EstimatedHistogram</a></code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#estimatedColumnCount">estimatedColumnCount</a></strong></code>&nbsp;</td> </tr> <tr class="altColor"> <td class="colFirst"><code><a href="../../../../../../org/apache/cassandra/utils/EstimatedHistogram.html" title="class in org.apache.cassandra.utils">EstimatedHistogram</a></code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#estimatedRowSize">estimatedRowSize</a></strong></code>&nbsp;</td> </tr> <tr class="rowColor"> <td class="colFirst"><code><a href="../../../../../../org/apache/cassandra/utils/StreamingHistogram.html" title="class in org.apache.cassandra.utils">StreamingHistogram</a></code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#estimatedTombstoneDropTime">estimatedTombstoneDropTime</a></strong></code>&nbsp;</td> </tr> <tr class="altColor"> <td class="colFirst"><code>boolean</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#hasLegacyCounterShards">hasLegacyCounterShards</a></strong></code>&nbsp;</td> </tr> <tr class="rowColor"> <td class="colFirst"><code>java.util.List&lt;java.nio.ByteBuffer&gt;</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#maxColumnNames">maxColumnNames</a></strong></code>&nbsp;</td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#maxLocalDeletionTime">maxLocalDeletionTime</a></strong></code>&nbsp;</td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#maxTimestamp">maxTimestamp</a></strong></code>&nbsp;</td> </tr> <tr class="altColor"> <td class="colFirst"><code>java.util.List&lt;java.nio.ByteBuffer&gt;</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#minColumnNames">minColumnNames</a></strong></code>&nbsp;</td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#minTimestamp">minTimestamp</a></strong></code>&nbsp;</td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#repairedAt">repairedAt</a></strong></code>&nbsp;</td> </tr> <tr class="rowColor"> <td class="colFirst"><code><a href="../../../../../../org/apache/cassandra/db/commitlog/ReplayPosition.html" title="class in org.apache.cassandra.db.commitlog">ReplayPosition</a></code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#replayPosition">replayPosition</a></strong></code>&nbsp;</td> </tr> <tr class="altColor"> <td class="colFirst"><code>static <a href="../../../../../../org/apache/cassandra/io/sstable/metadata/IMetadataComponentSerializer.html" title="interface in org.apache.cassandra.io.sstable.metadata">IMetadataComponentSerializer</a></code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#serializer">serializer</a></strong></code>&nbsp;</td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#sstableLevel">sstableLevel</a></strong></code>&nbsp;</td> </tr> </table> </li> </ul> <!-- ======== CONSTRUCTOR SUMMARY ======== --> <ul class="blockList"> <li class="blockList"><a name="constructor_summary"> <!-- --> </a> <h3>Constructor Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> <caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption> <tr> <th class="colOne" scope="col">Constructor and Description</th> </tr> <tr class="altColor"> <td class="colOne"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#StatsMetadata(org.apache.cassandra.utils.EstimatedHistogram,%20org.apache.cassandra.utils.EstimatedHistogram,%20org.apache.cassandra.db.commitlog.ReplayPosition,%20long,%20long,%20int,%20double,%20org.apache.cassandra.utils.StreamingHistogram,%20int,%20java.util.List,%20java.util.List,%20boolean,%20long)">StatsMetadata</a></strong>(<a href="../../../../../../org/apache/cassandra/utils/EstimatedHistogram.html" title="class in org.apache.cassandra.utils">EstimatedHistogram</a>&nbsp;estimatedRowSize, <a href="../../../../../../org/apache/cassandra/utils/EstimatedHistogram.html" title="class in org.apache.cassandra.utils">EstimatedHistogram</a>&nbsp;estimatedColumnCount, <a href="../../../../../../org/apache/cassandra/db/commitlog/ReplayPosition.html" title="class in 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class="colFirst" scope="col">Modifier and Type</th> <th class="colLast" scope="col">Method and Description</th> </tr> <tr class="altColor"> <td class="colFirst"><code>boolean</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#equals(java.lang.Object)">equals</a></strong>(java.lang.Object&nbsp;o)</code>&nbsp;</td> </tr> <tr class="rowColor"> <td class="colFirst"><code>double</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#getDroppableTombstonesBefore(int)">getDroppableTombstonesBefore</a></strong>(int&nbsp;gcBefore)</code>&nbsp;</td> </tr> <tr class="altColor"> <td class="colFirst"><code>double</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#getEstimatedDroppableTombstoneRatio(int)">getEstimatedDroppableTombstoneRatio</a></strong>(int&nbsp;gcBefore)</code>&nbsp;</td> </tr> <tr class="rowColor"> <td class="colFirst"><code><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/MetadataType.html" title="enum in org.apache.cassandra.io.sstable.metadata">MetadataType</a></code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#getType()">getType</a></strong>()</code>&nbsp;</td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#hashCode()">hashCode</a></strong>()</code>&nbsp;</td> </tr> <tr class="rowColor"> <td class="colFirst"><code><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html" title="class in org.apache.cassandra.io.sstable.metadata">StatsMetadata</a></code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#mutateLevel(int)">mutateLevel</a></strong>(int&nbsp;newLevel)</code>&nbsp;</td> </tr> <tr class="altColor"> <td class="colFirst"><code><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html" title="class in org.apache.cassandra.io.sstable.metadata">StatsMetadata</a></code></td> <td class="colLast"><code><strong><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/StatsMetadata.html#mutateRepairedAt(long)">mutateRepairedAt</a></strong>(long&nbsp;newRepairedAt)</code>&nbsp;</td> </tr> </table> <ul class="blockList"> <li class="blockList"><a name="methods_inherited_from_class_org.apache.cassandra.io.sstable.metadata.MetadataComponent"> <!-- --> </a> <h3>Methods inherited from class&nbsp;org.apache.cassandra.io.sstable.metadata.<a href="../../../../../../org/apache/cassandra/io/sstable/metadata/MetadataComponent.html" title="class in org.apache.cassandra.io.sstable.metadata">MetadataComponent</a></h3> <code><a href="../../../../../../org/apache/cassandra/io/sstable/metadata/MetadataComponent.html#compareTo(org.apache.cassandra.io.sstable.metadata.MetadataComponent)">compareTo</a></code></li> </ul> <ul class="blockList"> <li class="blockList"><a name="methods_inherited_from_class_java.lang.Object"> <!-- --> </a> <h3>Methods inherited from class&nbsp;java.lang.Object</h3> <code>clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait</code></li> </ul> </li> </ul> </li> </ul> </div> <div class="details"> <ul class="blockList"> <li class="blockList"> <!-- ============ FIELD DETAIL =========== --> <ul class="blockList"> <li class="blockList"><a name="field_detail"> <!-- --> </a> <h3>Field Detail</h3> <a 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</ul> <a name="replayPosition"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>replayPosition</h4> <pre>public final&nbsp;<a href="../../../../../../org/apache/cassandra/db/commitlog/ReplayPosition.html" title="class in org.apache.cassandra.db.commitlog">ReplayPosition</a> replayPosition</pre> </li> </ul> <a name="minTimestamp"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>minTimestamp</h4> <pre>public final&nbsp;long minTimestamp</pre> </li> </ul> <a name="maxTimestamp"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>maxTimestamp</h4> <pre>public final&nbsp;long maxTimestamp</pre> </li> </ul> <a name="maxLocalDeletionTime"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>maxLocalDeletionTime</h4> <pre>public final&nbsp;int maxLocalDeletionTime</pre> </li> </ul> <a name="compressionRatio"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>compressionRatio</h4> <pre>public final&nbsp;double compressionRatio</pre> </li> </ul> <a name="estimatedTombstoneDropTime"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>estimatedTombstoneDropTime</h4> <pre>public final&nbsp;<a href="../../../../../../org/apache/cassandra/utils/StreamingHistogram.html" title="class in org.apache.cassandra.utils">StreamingHistogram</a> estimatedTombstoneDropTime</pre> </li> </ul> <a name="sstableLevel"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>sstableLevel</h4> <pre>public final&nbsp;int sstableLevel</pre> </li> </ul> <a name="maxColumnNames"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>maxColumnNames</h4> <pre>public final&nbsp;java.util.List&lt;java.nio.ByteBuffer&gt; maxColumnNames</pre> </li> </ul> <a name="minColumnNames"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>minColumnNames</h4> <pre>public final&nbsp;java.util.List&lt;java.nio.ByteBuffer&gt; minColumnNames</pre> </li> </ul> <a name="hasLegacyCounterShards"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>hasLegacyCounterShards</h4> <pre>public final&nbsp;boolean hasLegacyCounterShards</pre> </li> </ul> <a name="repairedAt"> <!-- --> </a> <ul class="blockListLast"> <li class="blockList"> <h4>repairedAt</h4> <pre>public final&nbsp;long repairedAt</pre> </li> </ul> </li> </ul> <!-- ========= CONSTRUCTOR DETAIL ======== --> <ul class="blockList"> <li class="blockList"><a name="constructor_detail"> <!-- --> </a> <h3>Constructor Detail</h3> <a name="StatsMetadata(org.apache.cassandra.utils.EstimatedHistogram, org.apache.cassandra.utils.EstimatedHistogram, org.apache.cassandra.db.commitlog.ReplayPosition, long, long, int, double, org.apache.cassandra.utils.StreamingHistogram, int, java.util.List, java.util.List, boolean, long)"> <!-- --> </a> <ul class="blockListLast"> <li class="blockList"> <h4>StatsMetadata</h4> <pre>public&nbsp;StatsMetadata(<a href="../../../../../../org/apache/cassandra/utils/EstimatedHistogram.html" title="class in org.apache.cassandra.utils">EstimatedHistogram</a>&nbsp;estimatedRowSize, <a href="../../../../../../org/apache/cassandra/utils/EstimatedHistogram.html" title="class in org.apache.cassandra.utils">EstimatedHistogram</a>&nbsp;estimatedColumnCount, <a href="../../../../../../org/apache/cassandra/db/commitlog/ReplayPosition.html" title="class in org.apache.cassandra.db.commitlog">ReplayPosition</a>&nbsp;replayPosition, long&nbsp;minTimestamp, long&nbsp;maxTimestamp, int&nbsp;maxLocalDeletionTime, double&nbsp;compressionRatio, <a href="../../../../../../org/apache/cassandra/utils/StreamingHistogram.html" title="class in org.apache.cassandra.utils">StreamingHistogram</a>&nbsp;estimatedTombstoneDropTime, int&nbsp;sstableLevel, java.util.List&lt;java.nio.ByteBuffer&gt;&nbsp;minColumnNames, java.util.List&lt;java.nio.ByteBuffer&gt;&nbsp;maxColumnNames, boolean&nbsp;hasLegacyCounterShards, long&nbsp;repairedAt)</pre> </li> </ul> </li> </ul> <!-- ============ METHOD DETAIL 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class="blockList"> <h4>getEstimatedDroppableTombstoneRatio</h4> <pre>public&nbsp;double&nbsp;getEstimatedDroppableTombstoneRatio(int&nbsp;gcBefore)</pre> <dl><dt><span class="strong">Parameters:</span></dt><dd><code>gcBefore</code> - gc time in seconds</dd> <dt><span class="strong">Returns:</span></dt><dd>estimated droppable tombstone ratio at given gcBefore time.</dd></dl> </li> </ul> <a name="getDroppableTombstonesBefore(int)"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getDroppableTombstonesBefore</h4> <pre>public&nbsp;double&nbsp;getDroppableTombstonesBefore(int&nbsp;gcBefore)</pre> <dl><dt><span class="strong">Parameters:</span></dt><dd><code>gcBefore</code> - gc time in seconds</dd> <dt><span class="strong">Returns:</span></dt><dd>amount of droppable tombstones</dd></dl> </li> </ul> <a name="mutateLevel(int)"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>mutateLevel</h4> <pre>public&nbsp;<a 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