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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/526c7822/devapidocs/org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html ---------------------------------------------------------------------- diff --git a/devapidocs/org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html b/devapidocs/org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html new file mode 100644 index 0000000..c1d6824 --- /dev/null +++ b/devapidocs/org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html @@ -0,0 +1,348 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<!-- NewPage --> +<html lang="en"> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> +<title>MemStoreScanner.Type (Apache HBase 2.0.0-SNAPSHOT API)</title> +<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="MemStoreScanner.Type (Apache HBase 2.0.0-SNAPSHOT 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 href="package-summary.html">Package</a></li> +<li class="navBarCell1Rev">Class</li> +<li><a href="class-use/MemStoreScanner.Type.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/hadoop/hbase/regionserver/MemStoreScanner.html" title="class in org.apache.hadoop.hbase.regionserver"><span class="strong">Prev Class</span></a></li> +<li><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreSnapshot.html" title="class in org.apache.hadoop.hbase.regionserver"><span class="strong">Next Class</span></a></li> +</ul> +<ul class="navList"> +<li><a href="../../../../../index.html?org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html" target="_top">Frames</a></li> +<li><a href="MemStoreScanner.Type.html" target="_top">No Frames</a></li> +</ul> +<ul class="navList" id="allclasses_navbar_top"> +<li><a href="../../../../../allclasses-noframe.html">All Classes</a></li> +</ul> +<div> +<script type="text/javascript"><!-- + allClassesLink = document.getElementById("allclasses_navbar_top"); + if(window==top) { + allClassesLink.style.display = "block"; + } + else { + allClassesLink.style.display = "none"; + } + //--> +</script> +</div> +<div> +<ul class="subNavList"> +<li>Summary: </li> +<li>Nested | </li> +<li><a href="#enum_constant_summary">Enum Constants</a> | </li> +<li>Field | </li> +<li><a href="#method_summary">Method</a></li> +</ul> +<ul class="subNavList"> +<li>Detail: </li> +<li><a href="#enum_constant_detail">Enum Constants</a> | </li> +<li>Field | </li> +<li><a href="#method_detail">Method</a></li> +</ul> +</div> +<a name="skip-navbar_top"> +<!-- --> +</a></div> +<!-- ========= END OF TOP NAVBAR ========= --> +<!-- ======== START OF CLASS DATA ======== --> +<div class="header"> +<div class="subTitle">org.apache.hadoop.hbase.regionserver</div> +<h2 title="Enum MemStoreScanner.Type" class="title">Enum MemStoreScanner.Type</h2> +</div> +<div class="contentContainer"> +<ul class="inheritance"> +<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> +<li> +<ul class="inheritance"> +<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">java.lang.Enum</a><<a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreScanner.Type</a>></li> +<li> +<ul class="inheritance"> +<li>org.apache.hadoop.hbase.regionserver.MemStoreScanner.Type</li> +</ul> +</li> +</ul> +</li> +</ul> +<div class="description"> +<ul class="blockList"> +<li class="blockList"> +<dl> +<dt>All Implemented Interfaces:</dt> +<dd><a href="http://docs.oracle.com/javase/7/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Comparable.html?is-external=true" title="class or interface in java.lang">Comparable</a><<a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreScanner.Type</a>></dd> +</dl> +<dl> +<dt>Enclosing class:</dt> +<dd><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html" title="class in org.apache.hadoop.hbase.regionserver">MemStoreScanner</a></dd> +</dl> +<hr> +<br> +<pre>public static enum <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.42">MemStoreScanner.Type</a> +extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</a><<a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreScanner.Type</a>></pre> +<div class="block">Types of cell MemStoreScanner</div> +</li> +</ul> +</div> +<div class="summary"> +<ul class="blockList"> +<li class="blockList"> +<!-- =========== ENUM CONSTANT SUMMARY =========== --> +<ul class="blockList"> +<li class="blockList"><a name="enum_constant_summary"> +<!-- --> +</a> +<h3>Enum Constant Summary</h3> +<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Enum Constant Summary table, listing enum constants, and an explanation"> +<caption><span>Enum Constants</span><span class="tabEnd"> </span></caption> +<tr> +<th class="colOne" scope="col">Enum Constant and Description</th> +</tr> +<tr class="altColor"> +<td class="colOne"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html#COMPACT_FORWARD">COMPACT_FORWARD</a></strong></code> </td> +</tr> +<tr class="rowColor"> +<td class="colOne"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html#UNDEFINED">UNDEFINED</a></strong></code> </td> +</tr> +<tr class="altColor"> +<td class="colOne"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html#USER_SCAN_BACKWARD">USER_SCAN_BACKWARD</a></strong></code> </td> +</tr> +<tr class="rowColor"> +<td class="colOne"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html#USER_SCAN_FORWARD">USER_SCAN_FORWARD</a></strong></code> </td> +</tr> +</table> +</li> +</ul> +<!-- ========== METHOD SUMMARY =========== --> +<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>static <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreScanner.Type</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html#valueOf(java.lang.String)">valueOf</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</code> +<div class="block">Returns the enum constant of this type with the specified name.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>static <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreScanner.Type</a>[]</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html#values()">values</a></strong>()</code> +<div class="block">Returns an array containing the constants of this enum type, in +the order they are declared.</div> +</td> +</tr> +</table> +<ul class="blockList"> +<li class="blockList"><a name="methods_inherited_from_class_java.lang.Enum"> +<!-- --> +</a> +<h3>Methods inherited from class java.lang.<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true" title="class or interface in java.lang">Enum</a></h3> +<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true#compareTo(E)" title="class or interface in java.lang">compareTo</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Enum.html?is-external=true#equals(java.lang.Object)" 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href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html#line.45">USER_SCAN_FORWARD</a></pre> +</li> +</ul> +<a name="USER_SCAN_BACKWARD"> +<!-- --> +</a> +<ul class="blockListLast"> +<li class="blockList"> +<h4>USER_SCAN_BACKWARD</h4> +<pre>public static final <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreScanner.Type</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html#line.46">USER_SCAN_BACKWARD</a></pre> +</li> +</ul> +</li> +</ul> +<!-- ============ METHOD DETAIL ========== --> +<ul class="blockList"> +<li class="blockList"><a name="method_detail"> +<!-- --> +</a> +<h3>Method Detail</h3> +<a name="values()"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>values</h4> +<pre>public static <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreScanner.Type</a>[] <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html#line.42">values</a>()</pre> +<div class="block">Returns an array containing the constants of this enum type, in +the order they are declared. This method may be used to iterate +over the constants as follows: +<pre> +for (MemStoreScanner.Type c : MemStoreScanner.Type.values()) + System.out.println(c); +</pre></div> +<dl><dt><span class="strong">Returns:</span></dt><dd>an array containing the constants of this enum type, in the order they are declared</dd></dl> +</li> +</ul> +<a name="valueOf(java.lang.String)"> +<!-- --> +</a> +<ul class="blockListLast"> +<li class="blockList"> +<h4>valueOf</h4> +<pre>public static <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreScanner.Type</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html#line.42">valueOf</a>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> name)</pre> +<div class="block">Returns the enum constant of this type with the specified name. +The string must match <i>exactly</i> an identifier used to declare an +enum constant in this type. (Extraneous whitespace characters are +not permitted.)</div> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - the name of the enum constant to be returned.</dd> +<dt><span class="strong">Returns:</span></dt><dd>the enum constant with the specified name</dd> +<dt><span class="strong">Throws:</span></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if this enum type has no constant with the specified name</dd> +<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if the argument is null</dd></dl> +</li> +</ul> +</li> +</ul> +</li> +</ul> +</div> +</div> +<!-- ========= END OF CLASS DATA ========= --> +<!-- ======= START OF BOTTOM NAVBAR ====== --> +<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/MemStoreScanner.Type.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/hadoop/hbase/regionserver/MemStoreScanner.html" title="class in org.apache.hadoop.hbase.regionserver"><span class="strong">Prev Class</span></a></li> +<li><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreSnapshot.html" title="class in org.apache.hadoop.hbase.regionserver"><span class="strong">Next Class</span></a></li> +</ul> +<ul class="navList"> +<li><a href="../../../../../index.html?org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html" target="_top">Frames</a></li> +<li><a href="MemStoreScanner.Type.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"><!-- + allClassesLink = document.getElementById("allclasses_navbar_bottom"); + if(window==top) { + allClassesLink.style.display = "block"; + } + else { + allClassesLink.style.display = "none"; + } + //--> +</script> +</div> +<div> +<ul class="subNavList"> +<li>Summary: </li> +<li>Nested | </li> +<li><a href="#enum_constant_summary">Enum Constants</a> | </li> +<li>Field | </li> +<li><a href="#method_summary">Method</a></li> +</ul> +<ul class="subNavList"> +<li>Detail: </li> +<li><a href="#enum_constant_detail">Enum Constants</a> | </li> +<li>Field | </li> +<li><a href="#method_detail">Method</a></li> +</ul> +</div> +<a name="skip-navbar_bottom"> +<!-- --> +</a></div> +<!-- ======== END OF BOTTOM NAVBAR ======= --> +<p class="legalCopy"><small>Copyright © 2007–2016 <a href="http://www.apache.org/">The Apache Software Foundation</a>. 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+</div> +<div> +<ul class="subNavList"> +<li>Summary: </li> +<li><a href="#nested_class_summary">Nested</a> | </li> +<li><a href="#field_summary">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><a href="#field_detail">Field</a> | </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> +<!-- ========= END OF TOP NAVBAR ========= --> +<!-- ======== START OF CLASS DATA ======== --> +<div class="header"> +<div class="subTitle">org.apache.hadoop.hbase.regionserver</div> +<h2 title="Class MemStoreScanner" class="title">Class MemStoreScanner</h2> +</div> +<div class="contentContainer"> +<ul class="inheritance"> +<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li> +<li> +<ul class="inheritance"> +<li><a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html" title="class in org.apache.hadoop.hbase.regionserver">org.apache.hadoop.hbase.regionserver.NonLazyKeyValueScanner</a></li> +<li> +<ul class="inheritance"> +<li>org.apache.hadoop.hbase.regionserver.MemStoreScanner</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/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><a href="../../../../../org/apache/hadoop/hbase/classification/InterfaceAudience.Private.html" title="annotation in org.apache.hadoop.hbase.classification">@InterfaceAudience.Private</a> +public class <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.38">MemStoreScanner</a> +extends <a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html" title="class in org.apache.hadoop.hbase.regionserver">NonLazyKeyValueScanner</a></pre> +<div class="block">This is the scanner for any MemStore implementation, derived from MemStore. + The MemStoreScanner combines SegmentScanner from different Segments and + uses the key-value heap and the reversed key-value heap for the aggregated key-values set. + It is assumed that only traversing forward or backward is used (without zigzagging in between)</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> 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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 <a href="../../../../../org/apache/hadoop/hbase/regionserver/ReversedKeyValueHeap.html" title="class in org.apache.hadoop.hbase.regionserver">ReversedKeyValueHeap</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#backwardHeap">backwardHeap</a></strong></code> </td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html" title="class in org.apache.hadoop.hbase.regionserver">AbstractMemStore</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#backwardReferenceToMemStore">backwardReferenceToMemStore</a></strong></code> </td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueHeap.html" title="class in org.apache.hadoop.hbase.regionserver">KeyValueHeap</a></code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#forwardHeap">forwardHeap</a></strong></code> </td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>private long</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#readPoint">readPoint</a></strong></code> </td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>(package private) <a href="http://docs.oracle.com/javase/7/docs/api/java/util/List.html?is-external=true" title="class or interface in 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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> +</ul> +</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"> </span></caption> +<tr> +<th class="colOne" scope="col">Constructor and Description</th> +</tr> +<tr class="altColor"> +<td class="colOne"><code><strong><a 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title="enum in org.apache.hadoop.hbase.regionserver">MemStoreScanner.Type</a> type)</code> +<div class="block">Constructor.</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="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>private void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#assertForward()">assertForward</a></strong>()</code> +<div class="block">Checks whether the type of the scan suits the assumption of moving forward</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>boolean</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#backwardSeek(org.apache.hadoop.hbase.Cell)">backwardSeek</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> +<div class="block">Set the scanner at the seek key.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>void</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#close()">close</a></strong>()</code> +<div class="block">Close the KeyValue scanner.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>long</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#getSequenceID()">getSequenceID</a></strong>()</code> +<div class="block">MemStoreScanner returns max value as sequence id because it will + always have the latest data among all files.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>private boolean</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#initBackwardHeapIfNeeded(org.apache.hadoop.hbase.Cell,%20boolean)">initBackwardHeapIfNeeded</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell, + boolean toLast)</code> +<div class="block">Checks whether the type of the scan suits the assumption of moving backward</div> +</td> +</tr> +<tr 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><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#next()">next</a></strong>()</code> +<div class="block">Gets the next cell from the top-most scanner.</div> +</td> +</tr> +<tr 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><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#peek()">peek</a></strong>()</code> +<div class="block">Returns the cell from the top-most scanner without advancing the iterator.</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>boolean</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#reseek(org.apache.hadoop.hbase.Cell)">reseek</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> +<div class="block">Move forward on the sub-lists set previously by seek.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>private boolean</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#restartBackwardHeap(org.apache.hadoop.hbase.Cell)">restartBackwardHeap</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> +<div class="block">Restructure the ended backward heap after rerunning a seekToPreviousRow() + on each scanner</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>boolean</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#seek(org.apache.hadoop.hbase.Cell)">seek</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> +<div class="block">Set the scanner at the seek key.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>boolean</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#seekToLastRow()">seekToLastRow</a></strong>()</code> +<div class="block">Seek the scanner at the first KeyValue of last row</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code>boolean</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#seekToPreviousRow(org.apache.hadoop.hbase.Cell)">seekToPreviousRow</a></strong>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell)</code> +<div class="block">Assumed backward scanning.</div> +</td> +</tr> +<tr class="altColor"> +<td class="colFirst"><code>boolean</code></td> +<td class="colLast"><code><strong><a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#shouldUseScanner(org.apache.hadoop.hbase.client.Scan,%20org.apache.hadoop.hbase.regionserver.Store,%20long)">shouldUseScanner</a></strong>(<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/Store.html" title="interface in org.apache.hadoop.hbase.regionserver">Store</a> store, + long oldestUnexpiredTS)</code> +<div class="block">Check if this memstore may contain the required keys</div> +</td> +</tr> +<tr class="rowColor"> +<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> +<td class="colLast"><code><strong><a 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href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html" title="class in org.apache.hadoop.hbase.regionserver">AbstractMemStore</a> ms, + long readPoint, + <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreScanner.Type</a> type) + throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> +<div class="block">Constructor. + If UNDEFINED type for MemStoreScanner is provided, the forward heap is used as default! + After constructor only one heap is going to be initialized for entire lifespan + of the MemStoreScanner. A specific scanner can only be one directional!</div> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>ms</code> - Pointer back to the MemStore</dd><dd><code>readPoint</code> - Read point below which we can safely remove duplicate KVs</dd><dd><code>type</code> - The scan type COMPACT_FORWARD should be used for compaction</dd> +<dt><span class="strong">Throws:</span></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/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="MemStoreScanner(org.apache.hadoop.hbase.regionserver.AbstractMemStore, long)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>MemStoreScanner</h4> +<pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.81">MemStoreScanner</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html" title="class in org.apache.hadoop.hbase.regionserver">AbstractMemStore</a> ms, + long readPt) + throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> +<dl><dt><span class="strong">Throws:</span></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/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="MemStoreScanner(org.apache.hadoop.hbase.regionserver.AbstractMemStore, java.util.List, long, org.apache.hadoop.hbase.regionserver.MemStoreScanner.Type)"> +<!-- --> +</a> +<ul class="blockListLast"> +<li class="blockList"> +<h4>MemStoreScanner</h4> +<pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.85">MemStoreScanner</a>(<a href="../../../../../org/apache/hadoop/hbase/regionserver/AbstractMemStore.html" title="class in org.apache.hadoop.hbase.regionserver">AbstractMemStore</a> ms, + <a href="http://docs.oracle.com/javase/7/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/SegmentScanner.html" title="class in org.apache.hadoop.hbase.regionserver">SegmentScanner</a>> scanners, + long readPoint, + <a href="../../../../../org/apache/hadoop/hbase/regionserver/MemStoreScanner.Type.html" title="enum in org.apache.hadoop.hbase.regionserver">MemStoreScanner.Type</a> type) + throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> +<dl><dt><span class="strong">Throws:</span></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd></dl> +</li> +</ul> +</li> +</ul> +<!-- ============ METHOD DETAIL ========== --> +<ul class="blockList"> +<li class="blockList"><a name="method_detail"> +<!-- --> +</a> +<h3>Method Detail</h3> +<a name="peek()"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<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/MemStoreScanner.html#line.114">peek</a>()</pre> +<div class="block">Returns the cell from the top-most scanner without advancing the iterator. + The backward traversal is assumed, only if specified explicitly</div> +<dl><dt><span class="strong">Returns:</span></dt><dd>the next Cell</dd></dl> +</li> +</ul> +<a name="next()"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>next</h4> +<pre>public <a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.125">next</a>() + throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> +<div class="block">Gets the next cell from the top-most scanner. Assumed forward scanning.</div> +<dl><dt><span class="strong">Returns:</span></dt><dd>the next Cell</dd> +<dt><span class="strong">Throws:</span></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/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)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>seek</h4> +<pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.151">seek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell) + throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> +<div class="block">Set the scanner at the seek key. Assumed forward scanning. + Must be called only once: there is no thread safety between the scanner + and the memStore.</div> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>cell</code> - seek value</dd> +<dt><span class="strong">Returns:</span></dt><dd>false if the key is null or if there is no data</dd> +<dt><span class="strong">Throws:</span></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/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="reseek(org.apache.hadoop.hbase.Cell)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>reseek</h4> +<pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.169">reseek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell) + throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> +<div class="block">Move forward on the sub-lists set previously by seek. Assumed forward scanning.</div> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>cell</code> - seek value (should be non-null)</dd> +<dt><span class="strong">Returns:</span></dt><dd>true if there is at least one KV to read, false otherwise</dd> +<dt><span class="strong">Throws:</span></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/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="getSequenceID()"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>getSequenceID</h4> +<pre>public long <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.193">getSequenceID</a>()</pre> +<div class="block">MemStoreScanner returns max value as sequence id because it will + always have the latest data among all files.</div> +</li> +</ul> +<a name="close()"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>close</h4> +<pre>public void <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.198">close</a>()</pre> +<div class="block"><strong>Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#close()">KeyValueScanner</a></code></strong></div> +<div class="block">Close the KeyValue scanner.</div> +</li> +</ul> +<a name="backwardSeek(org.apache.hadoop.hbase.Cell)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>backwardSeek</h4> +<pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.223">backwardSeek</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell) + throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> +<div class="block">Set the scanner at the seek key. Assumed backward scanning.</div> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>cell</code> - seek value</dd> +<dt><span class="strong">Returns:</span></dt><dd>false if the key is null or if there is no data</dd> +<dt><span class="strong">Throws:</span></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/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="seekToPreviousRow(org.apache.hadoop.hbase.Cell)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>seekToPreviousRow</h4> +<pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.235">seekToPreviousRow</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell) + throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> +<div class="block">Assumed backward scanning.</div> +<dl><dt><span class="strong">Parameters:</span></dt><dd><code>cell</code> - seek value</dd> +<dt><span class="strong">Returns:</span></dt><dd>false if the key is null or if there is no data</dd> +<dt><span class="strong">Throws:</span></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/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="seekToLastRow()"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>seekToLastRow</h4> +<pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.244">seekToLastRow</a>() + throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> +<div class="block"><strong>Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#seekToLastRow()">KeyValueScanner</a></code></strong></div> +<div class="block">Seek the scanner at the first KeyValue of last row</div> +<dl><dt><span class="strong">Returns:</span></dt><dd>true if scanner has values left, false if the underlying data is + empty</dd> +<dt><span class="strong">Throws:</span></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/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="shouldUseScanner(org.apache.hadoop.hbase.client.Scan, org.apache.hadoop.hbase.regionserver.Store, long)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>shouldUseScanner</h4> +<pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.258">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/Store.html" title="interface in org.apache.hadoop.hbase.regionserver">Store</a> store, + long oldestUnexpiredTS)</pre> +<div class="block">Check if this memstore may contain the required keys</div> +<dl> +<dt><strong>Specified by:</strong></dt> +<dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/KeyValueScanner.html#shouldUseScanner(org.apache.hadoop.hbase.client.Scan,%20org.apache.hadoop.hbase.regionserver.Store,%20long)">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><strong>Overrides:</strong></dt> +<dd><code><a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html#shouldUseScanner(org.apache.hadoop.hbase.client.Scan,%20org.apache.hadoop.hbase.regionserver.Store,%20long)">shouldUseScanner</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/regionserver/NonLazyKeyValueScanner.html" title="class in org.apache.hadoop.hbase.regionserver">NonLazyKeyValueScanner</a></code></dd> +<dt><span class="strong">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="strong">Returns:</span></dt><dd>False if the key definitely does not exist in this Memstore</dd></dl> +</li> +</ul> +<a name="toString()"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>toString</h4> +<pre>public <a href="http://docs.oracle.com/javase/7/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/MemStoreScanner.html#line.274">toString</a>()</pre> +<dl> +<dt><strong>Overrides:</strong></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/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="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> +</dl> +</li> +</ul> +<a name="restartBackwardHeap(org.apache.hadoop.hbase.Cell)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>restartBackwardHeap</h4> +<pre>private boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.289">restartBackwardHeap</a>(<a href="../../../../../org/apache/hadoop/hbase/Cell.html" title="interface in org.apache.hadoop.hbase">Cell</a> cell) + throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> +<div class="block">Restructure the ended backward heap after rerunning a seekToPreviousRow() + on each scanner</div> +<dl><dt><span class="strong">Returns:</span></dt><dd>false if given Cell does not exist in any scanner</dd> +<dt><span class="strong">Throws:</span></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/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="initBackwardHeapIfNeeded(org.apache.hadoop.hbase.Cell, boolean)"> +<!-- --> +</a> +<ul class="blockList"> +<li class="blockList"> +<h4>initBackwardHeapIfNeeded</h4> +<pre>private boolean <a 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href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/MemStoreScanner.html#line.339">assertForward</a>() + throws <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></pre> +<div class="block">Checks whether the type of the scan suits the assumption of moving forward</div> +<dl><dt><span class="strong">Throws:</span></dt> +<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code></dd></dl> +</li> +</ul> +</li> +</ul> +</li> +</ul> +</div> +</div> +<!-- ========= END OF CLASS DATA ========= --> +<!-- ======= START OF BOTTOM NAVBAR ====== --> +<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 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