cassandra-server

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  <html lang="en"> <head>  <title>LeveledCompactionStrategy (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"> </script> <noscript> <div>JavaScript is disabled on your browser.</div> </noscript>  <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 href="package-summary.html">Package</a></li> <li class="navBarCell1Rev">Class</li> <li><a href="class-use/LeveledCompactionStrategy.html">Use</a></li> <li><a href="package-tree.html">Tree</a></li> <li><a href="../../../../../deprecated-list.html">Deprecated</a></li> <li><a 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class="subNavList"> <li>Summary: </li> <li>Nested | </li> <li><a href="#fields_inherited_from_class_org.apache.cassandra.db.compaction.AbstractCompactionStrategy">Field</a> | </li> <li><a href="#constructor_summary">Constr</a> | </li> <li><a href="#method_summary">Method</a></li> </ul> <ul class="subNavList"> <li>Detail: </li> <li>Field | </li> <li><a href="#constructor_detail">Constr</a> | </li> <li><a href="#method_detail">Method</a></li> </ul> </div> <a name="skip-navbar_top">  </a></div>   <div class="header"> <div class="subTitle">org.apache.cassandra.db.compaction</div> <h2 title="Class LeveledCompactionStrategy" class="title">Class LeveledCompactionStrategy</h2> </div> <div class="contentContainer"> <ul class="inheritance"> <li>java.lang.Object</li> <li> <ul class="inheritance"> <li><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">org.apache.cassandra.db.compaction.AbstractCompactionStrategy</a></li> <li> <ul class="inheritance"> <li>org.apache.cassandra.db.compaction.LeveledCompactionStrategy</li> </ul> </li> </ul> </li> </ul> <div class="description"> <ul class="blockList"> <li class="blockList"> <dl> <dt>All Implemented Interfaces:</dt> <dd><a href="../../../../../org/apache/cassandra/notifications/INotificationConsumer.html" title="interface in org.apache.cassandra.notifications">INotificationConsumer</a></dd> </dl> <hr> <br> <pre>public class <span class="strong">LeveledCompactionStrategy</span> extends <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionStrategy</a> implements <a href="../../../../../org/apache/cassandra/notifications/INotificationConsumer.html" title="interface in org.apache.cassandra.notifications">INotificationConsumer</a></pre> </li> </ul> </div> <div class="summary"> <ul class="blockList"> <li class="blockList">  <ul class="blockList"> <li class="blockList"><a name="field_summary">  </a> <h3>Field Summary</h3> <ul class="blockList"> <li class="blockList"><a name="fields_inherited_from_class_org.apache.cassandra.db.compaction.AbstractCompactionStrategy">  </a> <h3>Fields inherited from class org.apache.cassandra.db.compaction.<a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionStrategy</a></h3> <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#cfs">cfs</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#COMPACTION_ENABLED">COMPACTION_ENABLED</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#DEFAULT_TOMBSTONE_COMPACTION_INTERVAL">DEFAULT_TOMBSTONE_COMPACTION_INTERVAL</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#DEFAULT_TOMBSTONE_THRESHOLD">DEFAULT_TOMBSTONE_THRESHOLD</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#DEFAULT_UNCHECKED_TOMBSTONE_COMPACTION_OPTION">DEFAULT_UNCHECKED_TOMBSTONE_COMPACTION_OPTION</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#enabled">enabled</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#isActive">isActive</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#options">options</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#TOMBSTONE_COMPACTION_INTERVAL_OPTION">TOMBSTONE_COMPACTION_INTERVAL_OPTION</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#TOMBSTONE_THRESHOLD_OPTION">TOMBSTONE_THRESHOLD_OPTION</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#tombstoneCompactionInterval">tombstoneCompactionInterval</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#tombstoneThreshold">tombstoneThreshold</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#UNCHECKED_TOMBSTONE_COMPACTION_OPTION">UNCHECKED_TOMBSTONE_COMPACTION_OPTION</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#uncheckedTombstoneCompaction">uncheckedTombstoneCompaction</a></code></li> </ul> </li> </ul>  <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"> </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/db/compaction/LeveledCompactionStrategy.html#LeveledCompactionStrategy(org.apache.cassandra.db.ColumnFamilyStore,%20java.util.Map)">LeveledCompactionStrategy</a></strong>(<a href="../../../../../org/apache/cassandra/db/ColumnFamilyStore.html" title="class in org.apache.cassandra.db">ColumnFamilyStore</a> cfs, java.util.Map<java.lang.String,java.lang.String> options)</code> </td> </tr> </table> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="method_summary">  </a> <h3>Method Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> <caption><span>Methods</span><span class="tabEnd"> </span></caption> <tr> <th 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>int[]</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#getAllLevelSize()">getAllLevelSize</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionTask.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionTask</a></code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#getCompactionTask(java.util.Collection,%20int,%20long)">getCompactionTask</a></strong>(java.util.Collection<<a href="../../../../../org/apache/cassandra/io/sstable/SSTableReader.html" title="class in org.apache.cassandra.io.sstable">SSTableReader</a>> sstables, int gcBefore, long maxSSTableBytes)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#getEstimatedRemainingTasks()">getEstimatedRemainingTasks</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#getLevelSize(int)">getLevelSize</a></strong>(int i)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>java.util.Collection<<a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionTask.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionTask</a>></code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#getMaximalTask(int)">getMaximalTask</a></strong>(int gcBefore)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#getMaxSSTableBytes()">getMaxSSTableBytes</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionTask.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionTask</a></code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#getNextBackgroundTask(int)">getNextBackgroundTask</a></strong>(int gcBefore)</code> <div class="block">the only difference between background and maximal in LCS is that maximal is still allowed (by explicit user request) even when compaction is disabled.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>java.util.List<<a href="../../../../../org/apache/cassandra/db/compaction/ICompactionScanner.html" title="interface in org.apache.cassandra.db.compaction">ICompactionScanner</a>></code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#getScanners(java.util.Collection,%20org.apache.cassandra.dht.Range)">getScanners</a></strong>(java.util.Collection<<a href="../../../../../org/apache/cassandra/io/sstable/SSTableReader.html" title="class in org.apache.cassandra.io.sstable">SSTableReader</a>> sstables, <a href="../../../../../org/apache/cassandra/dht/Range.html" title="class in org.apache.cassandra.dht">Range</a><<a href="../../../../../org/apache/cassandra/dht/Token.html" title="class in org.apache.cassandra.dht">Token</a>> range)</code> <div class="block">Returns a list of KeyScanners given sstables and a range on which to scan.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionTask.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionTask</a></code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#getUserDefinedTask(java.util.Collection,%20int)">getUserDefinedTask</a></strong>(java.util.Collection<<a href="../../../../../org/apache/cassandra/io/sstable/SSTableReader.html" title="class in org.apache.cassandra.io.sstable">SSTableReader</a>> sstables, int gcBefore)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#handleNotification(org.apache.cassandra.notifications.INotification,%20java.lang.Object)">handleNotification</a></strong>(<a href="../../../../../org/apache/cassandra/notifications/INotification.html" title="interface in org.apache.cassandra.notifications">INotification</a> notification, java.lang.Object sender)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#shutdown()">shutdown</a></strong>()</code> <div class="block">Releases any resources if this strategy is shutdown (when the CFS is reloaded after a schema change).</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#startup()">startup</a></strong>()</code> <div class="block">Performs any extra initialization required</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>java.lang.String</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#toString()">toString</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>static java.util.Map<java.lang.String,java.lang.String></code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html#validateOptions(java.util.Map)">validateOptions</a></strong>(java.util.Map<java.lang.String,java.lang.String> options)</code> </td> </tr> </table> <ul class="blockList"> <li class="blockList"><a name="methods_inherited_from_class_org.apache.cassandra.db.compaction.AbstractCompactionStrategy">  </a> <h3>Methods inherited from class org.apache.cassandra.db.compaction.<a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionStrategy</a></h3> <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#disable()">disable</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#enable()">enable</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#filterSSTablesForReads(java.util.List)">filterSSTablesForReads</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#filterSuspectSSTables(java.lang.Iterable)">filterSuspectSSTables</a>, <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#getMemtableReservedSize()">getMemtableReservedSize</a>, <a 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href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#worthDroppingTombstones(org.apache.cassandra.io.sstable.SSTableReader,%20int)">worthDroppingTombstones</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 java.lang.Object</h3> <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li> </ul> </li> </ul> </li> </ul> </div> <div class="details"> <ul class="blockList"> <li class="blockList">  <ul class="blockList"> <li class="blockList"><a name="constructor_detail">  </a> <h3>Constructor Detail</h3> <a name="LeveledCompactionStrategy(org.apache.cassandra.db.ColumnFamilyStore, java.util.Map)">  </a> <ul class="blockListLast"> <li class="blockList"> <h4>LeveledCompactionStrategy</h4> <pre>public LeveledCompactionStrategy(<a href="../../../../../org/apache/cassandra/db/ColumnFamilyStore.html" title="class in org.apache.cassandra.db">ColumnFamilyStore</a> cfs, java.util.Map<java.lang.String,java.lang.String> options)</pre> </li> </ul> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="method_detail">  </a> <h3>Method Detail</h3> <a name="startup()">  </a> <ul class="blockList"> <li class="blockList"> <h4>startup</h4> <pre>public void startup()</pre> <div class="block"><strong>Description copied from class: <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#startup()">AbstractCompactionStrategy</a></code></strong></div> <div class="block">Performs any extra initialization required</div> <dl> <dt><strong>Overrides:</strong></dt> <dd><code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#startup()">startup</a></code> in class <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionStrategy</a></code></dd> </dl> </li> </ul> <a name="shutdown()">  </a> <ul class="blockList"> <li class="blockList"> <h4>shutdown</h4> <pre>public void shutdown()</pre> <div class="block"><strong>Description copied from class: <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#shutdown()">AbstractCompactionStrategy</a></code></strong></div> <div class="block">Releases any resources if this strategy is shutdown (when the CFS is reloaded after a schema change).</div> <dl> <dt><strong>Overrides:</strong></dt> <dd><code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#shutdown()">shutdown</a></code> in class <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionStrategy</a></code></dd> </dl> </li> </ul> <a name="getLevelSize(int)">  </a> <ul class="blockList"> <li class="blockList"> <h4>getLevelSize</h4> <pre>public int getLevelSize(int i)</pre> </li> </ul> <a name="getAllLevelSize()">  </a> <ul class="blockList"> <li class="blockList"> <h4>getAllLevelSize</h4> <pre>public int[] getAllLevelSize()</pre> </li> </ul> <a name="getNextBackgroundTask(int)">  </a> <ul class="blockList"> <li class="blockList"> <h4>getNextBackgroundTask</h4> <pre>public <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionTask.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionTask</a> getNextBackgroundTask(int gcBefore)</pre> <div class="block">the only difference between background and maximal in LCS is that maximal is still allowed (by explicit user request) even when compaction is disabled.</div> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#getNextBackgroundTask(int)">getNextBackgroundTask</a></code> in class <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionStrategy</a></code></dd> <dt><span class="strong">Parameters:</span></dt><dd><code>gcBefore</code> - throw away tombstones older than this</dd> <dt><span class="strong">Returns:</span></dt><dd>the next background/minor compaction task to run; null if nothing to do. Is responsible for marking its sstables as compaction-pending.</dd></dl> </li> </ul> <a name="getMaximalTask(int)">  </a> <ul class="blockList"> <li class="blockList"> <h4>getMaximalTask</h4> <pre>public java.util.Collection<<a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionTask.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionTask</a>> getMaximalTask(int gcBefore)</pre> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#getMaximalTask(int)">getMaximalTask</a></code> in class <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionStrategy</a></code></dd> <dt><span class="strong">Parameters:</span></dt><dd><code>gcBefore</code> - throw away tombstones older than this</dd> <dt><span class="strong">Returns:</span></dt><dd>a compaction task that should be run to compact this columnfamilystore as much as possible. Null if nothing to do. Is responsible for marking its sstables as compaction-pending.</dd></dl> </li> </ul> <a name="getUserDefinedTask(java.util.Collection, int)">  </a> <ul class="blockList"> <li class="blockList"> <h4>getUserDefinedTask</h4> <pre>public <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionTask.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionTask</a> getUserDefinedTask(java.util.Collection<<a href="../../../../../org/apache/cassandra/io/sstable/SSTableReader.html" title="class in org.apache.cassandra.io.sstable">SSTableReader</a>> sstables, int gcBefore)</pre> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#getUserDefinedTask(java.util.Collection,%20int)">getUserDefinedTask</a></code> in class <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionStrategy</a></code></dd> <dt><span class="strong">Parameters:</span></dt><dd><code>sstables</code> - SSTables to compact. Must be marked as compacting.</dd><dd><code>gcBefore</code> - throw away tombstones older than this</dd> <dt><span class="strong">Returns:</span></dt><dd>a compaction task corresponding to the requested sstables. Will not be null. (Will throw if user requests an invalid compaction.) Is responsible for marking its sstables as compaction-pending.</dd></dl> </li> </ul> <a name="getCompactionTask(java.util.Collection, int, long)">  </a> <ul class="blockList"> <li class="blockList"> <h4>getCompactionTask</h4> <pre>public <a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionTask.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionTask</a> getCompactionTask(java.util.Collection<<a href="../../../../../org/apache/cassandra/io/sstable/SSTableReader.html" title="class in org.apache.cassandra.io.sstable">SSTableReader</a>> sstables, int gcBefore, long maxSSTableBytes)</pre> <dl> <dt><strong>Overrides:</strong></dt> <dd><code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#getCompactionTask(java.util.Collection,%20int,%20long)">getCompactionTask</a></code> in class <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionStrategy</a></code></dd> </dl> </li> </ul> <a name="getEstimatedRemainingTasks()">  </a> <ul class="blockList"> <li class="blockList"> <h4>getEstimatedRemainingTasks</h4> <pre>public int getEstimatedRemainingTasks()</pre> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#getEstimatedRemainingTasks()">getEstimatedRemainingTasks</a></code> in class <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionStrategy</a></code></dd> <dt><span class="strong">Returns:</span></dt><dd>the number of background tasks estimated to still be needed for this columnfamilystore</dd></dl> </li> </ul> <a name="handleNotification(org.apache.cassandra.notifications.INotification, java.lang.Object)">  </a> <ul class="blockList"> <li class="blockList"> <h4>handleNotification</h4> <pre>public void handleNotification(<a href="../../../../../org/apache/cassandra/notifications/INotification.html" title="interface in org.apache.cassandra.notifications">INotification</a> notification, java.lang.Object sender)</pre> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../../org/apache/cassandra/notifications/INotificationConsumer.html#handleNotification(org.apache.cassandra.notifications.INotification,%20java.lang.Object)">handleNotification</a></code> in interface <code><a href="../../../../../org/apache/cassandra/notifications/INotificationConsumer.html" title="interface in org.apache.cassandra.notifications">INotificationConsumer</a></code></dd> </dl> </li> </ul> <a name="getMaxSSTableBytes()">  </a> <ul class="blockList"> <li class="blockList"> <h4>getMaxSSTableBytes</h4> <pre>public long getMaxSSTableBytes()</pre> <dl> <dt><strong>Specified by:</strong></dt> <dd><code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#getMaxSSTableBytes()">getMaxSSTableBytes</a></code> in class <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionStrategy</a></code></dd> <dt><span class="strong">Returns:</span></dt><dd>size in bytes of the largest sstables for this strategy</dd></dl> </li> </ul> <a name="getScanners(java.util.Collection, org.apache.cassandra.dht.Range)">  </a> <ul class="blockList"> <li class="blockList"> <h4>getScanners</h4> <pre>public java.util.List<<a href="../../../../../org/apache/cassandra/db/compaction/ICompactionScanner.html" title="interface in org.apache.cassandra.db.compaction">ICompactionScanner</a>> getScanners(java.util.Collection<<a href="../../../../../org/apache/cassandra/io/sstable/SSTableReader.html" title="class in org.apache.cassandra.io.sstable">SSTableReader</a>> sstables, <a href="../../../../../org/apache/cassandra/dht/Range.html" title="class in org.apache.cassandra.dht">Range</a><<a href="../../../../../org/apache/cassandra/dht/Token.html" title="class in org.apache.cassandra.dht">Token</a>> range)</pre> <div class="block"><strong>Description copied from class: <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#getScanners(java.util.Collection,%20org.apache.cassandra.dht.Range)">AbstractCompactionStrategy</a></code></strong></div> <div class="block">Returns a list of KeyScanners given sstables and a range on which to scan. The default implementation simply grab one SSTableScanner per-sstable, but overriding this method allow for a more memory efficient solution if we know the sstable don't overlap (see LeveledCompactionStrategy for instance).</div> <dl> <dt><strong>Overrides:</strong></dt> <dd><code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html#getScanners(java.util.Collection,%20org.apache.cassandra.dht.Range)">getScanners</a></code> in class <code><a href="../../../../../org/apache/cassandra/db/compaction/AbstractCompactionStrategy.html" title="class in org.apache.cassandra.db.compaction">AbstractCompactionStrategy</a></code></dd> </dl> </li> </ul> <a name="toString()">  </a> <ul class="blockList"> <li class="blockList"> <h4>toString</h4> <pre>public java.lang.String toString()</pre> <dl> <dt><strong>Overrides:</strong></dt> <dd><code>toString</code> in class <code>java.lang.Object</code></dd> </dl> </li> </ul> <a name="validateOptions(java.util.Map)">  </a> <ul class="blockListLast"> <li class="blockList"> <h4>validateOptions</h4> <pre>public static java.util.Map<java.lang.String,java.lang.String> validateOptions(java.util.Map<java.lang.String,java.lang.String> options) throws <a href="../../../../../org/apache/cassandra/exceptions/ConfigurationException.html" title="class in org.apache.cassandra.exceptions">ConfigurationException</a></pre> <dl><dt><span class="strong">Throws:</span></dt> <dd><code><a href="../../../../../org/apache/cassandra/exceptions/ConfigurationException.html" title="class in org.apache.cassandra.exceptions">ConfigurationException</a></code></dd></dl> </li> </ul> </li> </ul> </li> </ul> </div> </div>   <div class="bottomNav"><a name="navbar_bottom">  </a><a href="#skip-navbar_bottom" title="Skip navigation links"></a><a name="navbar_bottom_firstrow">  </a> <ul class="navList" title="Navigation"> <li><a href="../../../../../overview-summary.html">Overview</a></li> <li><a href="package-summary.html">Package</a></li> <li class="navBarCell1Rev">Class</li> <li><a href="class-use/LeveledCompactionStrategy.html">Use</a></li> <li><a href="package-tree.html">Tree</a></li> <li><a href="../../../../../deprecated-list.html">Deprecated</a></li> <li><a href="../../../../../index-all.html">Index</a></li> <li><a href="../../../../../help-doc.html">Help</a></li> </ul> </div> <div class="subNav"> <ul class="navList"> <li><a href="../../../../../org/apache/cassandra/db/compaction/LazilyCompactedRow.html" title="class in org.apache.cassandra.db.compaction"><span class="strong">Prev Class</span></a></li> <li><a href="../../../../../org/apache/cassandra/db/compaction/LeveledCompactionTask.html" title="class in org.apache.cassandra.db.compaction"><span class="strong">Next Class</span></a></li> </ul> <ul class="navList"> <li><a href="../../../../../index.html?org/apache/cassandra/db/compaction/LeveledCompactionStrategy.html" target="_top">Frames</a></li> <li><a href="LeveledCompactionStrategy.html" target="_top">No Frames</a></li> </ul> <ul class="navList" id="allclasses_navbar_bottom"> <li><a href="../../../../../allclasses-noframe.html">All Classes</a></li> </ul> <div> <script type="text/javascript"> </script> </div> <div> <ul class="subNavList"> <li>Summary: </li> <li>Nested | </li> <li><a href="#fields_inherited_from_class_org.apache.cassandra.db.compaction.AbstractCompactionStrategy">Field</a> | </li> <li><a href="#constructor_summary">Constr</a> | </li> <li><a href="#method_summary">Method</a></li> </ul> <ul class="subNavList"> <li>Detail: </li> <li>Field | </li> <li><a href="#constructor_detail">Constr</a> | </li> <li><a href="#method_detail">Method</a></li> </ul> </div> <a name="skip-navbar_bottom">  </a></div>  <p class="legalCopy"><small>Copyright © 2014 The Apache Software Foundation</small></p> </body> </html>