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Tue, 29 Apr 2025 11:55:00 -0700 

Added: datafu/site/docs/spark/2.1.0/datafu/spark/Aggregators$$MultiSet.html
URL: 
http://svn.apache.org/viewvc/datafu/site/docs/spark/2.1.0/datafu/spark/Aggregators%24%24MultiSet.html?rev=1925323&view=auto
==============================================================================
--- datafu/site/docs/spark/2.1.0/datafu/spark/Aggregators$$MultiSet.html (added)
+++ datafu/site/docs/spark/2.1.0/datafu/spark/Aggregators$$MultiSet.html Tue 
Apr 29 18:54:44 2025
@@ -0,0 +1,749 @@
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Classes</dt><dd><a href="../index.html" class="extype" 
name="datafu">datafu</a></dd></dl></div>
+    </li><li name="datafu.spark.Aggregators" visbl="pub" class="indented3 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="Aggregators"></a><a id="Aggregators:Aggregators"></a>
+      <span class="permalink">
+      <a href="../../datafu/spark/Aggregators$.html" title="Permalink">
+        <i class="material-icons"></i>
+      </a>
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+      <span class="modifier_kind">
+        <span class="modifier"></span>
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+      </span>
+      <span class="symbol">
+        <a title="This file contains UDAFs which extend the Aggregator class." 
href="Aggregators$.html"><span class="name">Aggregators</span></a>
+      </span>
+      
+      <p class="shortcomment cmt">This file contains UDAFs which extend the 
Aggregator class.</p><div class="fullcomment"><div class="comment cmt"><p>This 
file contains UDAFs which extend the Aggregator class.
+They were migrated from previous implementations which used 
UserDefinedAggregateFunction</p><p>The implementations below reuse the 
intermediate buffer in the merge function
+( see 
https://stackoverflow.com/questions/77713959/can-you-reuse-one-of-the-buffers-in-the-merge-method-of-spark-aggregators
 )
+</p></div><dl class="attributes block"> <dt>Definition Classes</dt><dd><a 
href="index.html" class="extype" name="datafu.spark">spark</a></dd></dl></div>
+    </li><li class="current-entities indented3">
+                        <span class="separator"></span>
+                        <a class="class" 
href="Aggregators$$CountDistinctUpTo.html" title="Counts number of distinct 
records, but only up to a preset amount - more efficient than an unbounded 
count"></a>
+                        <a href="Aggregators$$CountDistinctUpTo.html" 
title="Counts number of distinct records, but only up to a preset amount - more 
efficient than an unbounded count">CountDistinctUpTo</a>
+                      </li><li class="current-entities indented3">
+                        <span class="separator"></span>
+                        <a class="class" href="Aggregators$$MapSetMerge.html" 
title="Performs a deep merge of maps of kind string -&gt; 
set&lt;string&gt;"></a>
+                        <a href="Aggregators$$MapSetMerge.html" 
title="Performs a deep merge of maps of kind string -&gt; 
set&lt;string&gt;">MapSetMerge</a>
+                      </li><li class="current-entities indented3">
+                        <span class="separator"></span>
+                        <a class="class" 
href="Aggregators$$MultiArraySet.html" title="Essentially the same as MultiSet, 
but gets an Array for input."></a>
+                        <a href="Aggregators$$MultiArraySet.html" 
title="Essentially the same as MultiSet, but gets an Array for 
input.">MultiArraySet</a>
+                      </li><li class="current-entities indented3">
+                        <span class="separator"></span>
+                        <a class="class" href="" title="Like Google's 
MultiSets."></a>
+                        <a href="" title="Like Google's 
MultiSets.">MultiSet</a>
+                      </li>
+              </ul>
+            </div>
+          </div>
+          <div id="content">
+            <body class="class type">
+      <div id="definition">
+        <div class="big-circle class">c</div>
+        <p id="owner"><a href="../index.html" class="extype" 
name="datafu">datafu</a>.<a href="index.html" class="extype" 
name="datafu.spark">spark</a>.<a href="Aggregators$.html" class="extype" 
name="datafu.spark.Aggregators">Aggregators</a></p>
+        <h1>MultiSet<span class="permalink">
+      <a href="../../datafu/spark/Aggregators$$MultiSet.html" 
title="Permalink">
+        <i class="material-icons"></i>
+      </a>
+    </span></h1>
+        <h3><span class="morelinks"></span></h3>
+      </div>
+
+      <h4 id="signature" class="signature">
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">class</span>
+      </span>
+      <span class="symbol">
+        <span class="name">MultiSet</span><span class="result"> extends <span 
class="extype" 
name="org.apache.spark.sql.expressions.Aggregator">Aggregator</span>[<span 
class="extype" name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.collection.mutable.Map">Map</span>[<span class="extype" 
name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Int">Int</span>], <span class="extype" 
name="scala.collection.mutable.Map">Map</span>[<span class="extype" 
name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Int">Int</span>]] with <span class="extype" 
name="scala.Serializable">Serializable</span></span>
+      </span>
+      </h4>
+
+      
+          <div id="comment" class="fullcommenttop"><div class="comment 
cmt"><p>Like Google's MultiSets.
+Aggregate function that creates a map of key to its count.
+Expects as input a column of type String
+</p></div><div class="toggleContainer block">
+          <span class="toggle">
+            Linear Supertypes
+          </span>
+          <div class="superTypes hiddenContent"><span class="extype" 
name="org.apache.spark.sql.expressions.Aggregator">Aggregator</span>[<span 
class="extype" name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.collection.mutable.Map">Map</span>[<span class="extype" 
name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Int">Int</span>], <span class="extype" 
name="scala.collection.mutable.Map">Map</span>[<span class="extype" 
name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Int">Int</span>]], <span class="extype" 
name="scala.Serializable">Serializable</span>, <span class="extype" 
name="java.io.Serializable">Serializable</span>, <span class="extype" 
name="scala.AnyRef">AnyRef</span>, <span class="extype" 
name="scala.Any">Any</span></div>
+        </div></div>
+        
+
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+          <i class="material-icons arrow"></i>
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+            <input id="mbrsel-input" placeholder="Filter all members" 
type="text" accesskey="/" />
+          </span>
+          <i class="clear material-icons"></i>
+        </div>
+        <div id="filterby">
+          <div id="order">
+            <span class="filtertype">Ordering</span>
+            <ol>
+              
+              <li class="alpha in"><span>Alphabetic</span></li>
+              <li class="inherit out"><span>By Inheritance</span></li>
+            </ol>
+          </div>
+          <div class="ancestors">
+                  <span class="filtertype">Inherited<br />
+                  </span>
+                  <ol id="linearization">
+                    <li class="in" 
name="datafu.spark.Aggregators.MultiSet"><span>MultiSet</span></li><li 
class="in" 
name="org.apache.spark.sql.expressions.Aggregator"><span>Aggregator</span></li><li
 class="in" name="scala.Serializable"><span>Serializable</span></li><li 
class="in" name="java.io.Serializable"><span>Serializable</span></li><li 
class="in" name="scala.AnyRef"><span>AnyRef</span></li><li class="in" 
name="scala.Any"><span>Any</span></li>
+                  </ol>
+                </div><div class="ancestors">
+              <span class="filtertype"></span>
+              <ol>
+                <li class="hideall out"><span>Hide All</span></li>
+                <li class="showall in"><span>Show All</span></li>
+              </ol>
+            </div>
+          <div id="visbl">
+              <span class="filtertype">Visibility</span>
+              <ol><li class="public in"><span>Public</span></li><li class="all 
out"><span>All</span></li></ol>
+            </div>
+        </div>
+      </div>
+
+      <div id="template">
+        <div id="allMembers">
+        <div id="constructors" class="members">
+              <h3>Instance Constructors</h3>
+              <ol><li name="datafu.spark.Aggregators.MultiSet#&lt;init&gt;" 
visbl="pub" class="indented0 " data-isabs="false" fullComment="no" 
group="Ungrouped">
+      <a id="&lt;init&gt;():datafu.spark.Aggregators.MultiSet"></a><a 
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+      <span class="permalink">
+      <a 
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+    </span>
+      <span class="modifier_kind">
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+        <span class="kind">new</span>
+      </span>
+      <span class="symbol">
+        <span class="name">MultiSet</span><span class="params">()</span>
+      </span>
+      
+      
+    </li></ol>
+            </div>
+
+        
+
+        
+
+        <div class="values members">
+              <h3>Value Members</h3>
+              <ol>
+                <li name="scala.AnyRef#!=" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="!=(x$1:Any):Boolean"></a><a id="!=(Any):Boolean"></a>
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+    </span>
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $bang$eq" class="name">!=</span><span 
class="params">(<span name="arg0">arg0: <span class="extype" 
name="scala.Any">Any</span></span>)</span><span class="result">: <span 
class="extype" name="scala.Boolean">Boolean</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef###" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="##():Int"></a>
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+    </span>
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $hash$hash" class="name">##</span><span 
class="params">()</span><span class="result">: <span class="extype" 
name="scala.Int">Int</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#==" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="==(x$1:Any):Boolean"></a><a id="==(Any):Boolean"></a>
+      <span class="permalink">
+      <a 
href="../../datafu/spark/Aggregators$$MultiSet.html#==(x$1:Any):Boolean" 
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+      </a>
+    </span>
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span title="gt4s: $eq$eq" class="name">==</span><span 
class="params">(<span name="arg0">arg0: <span class="extype" 
name="scala.Any">Any</span></span>)</span><span class="result">: <span 
class="extype" name="scala.Boolean">Boolean</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.Any#asInstanceOf" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="asInstanceOf[T0]:T0"></a>
+      <span class="permalink">
+      <a 
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+      </a>
+    </span>
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">asInstanceOf</span><span class="tparams">[<span 
name="T0">T0</span>]</span><span class="result">: <span class="extype" 
name="scala.Any.asInstanceOf.T0">T0</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="datafu.spark.Aggregators.MultiSet#bufferEncoder" 
visbl="pub" class="indented0 " data-isabs="false" fullComment="yes" 
group="Ungrouped">
+      <a 
id="bufferEncoder:org.apache.spark.sql.Encoder[scala.collection.mutable.Map[String,Int]]"></a><a
 id="bufferEncoder:Encoder[Map[String,Int]]"></a>
+      <span class="permalink">
+      <a 
href="../../datafu/spark/Aggregators$$MultiSet.html#bufferEncoder:org.apache.spark.sql.Encoder[scala.collection.mutable.Map[String,Int]]"
 title="Permalink">
+        <i class="material-icons"></i>
+      </a>
+    </span>
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">bufferEncoder</span><span class="result">: <span 
class="extype" name="org.apache.spark.sql.Encoder">Encoder</span>[<span 
class="extype" name="scala.collection.mutable.Map">Map</span>[<span 
class="extype" name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Int">Int</span>]]</span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd><a href="" class="extype" 
name="datafu.spark.Aggregators.MultiSet">MultiSet</a> → 
Aggregator</dd></dl></div>
+    </li><li name="scala.AnyRef#clone" visbl="prt" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="clone():Object"></a><a id="clone():AnyRef"></a>
+      <span class="permalink">
+      <a href="../../datafu/spark/Aggregators$$MultiSet.html#clone():Object" 
title="Permalink">
+        <i class="material-icons"></i>
+      </a>
+    </span>
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">clone</span><span class="params">()</span><span 
class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> 
<dt>Attributes</dt><dd>protected[<span class="extype" 
name="java.lang">lang</span>] </dd><dt>Definition 
Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" 
name="classOf[java.lang.CloneNotSupportedException]">...</span>
+    </span>)</span>
+              
+                <span class="name">@native</span><span class="args">()</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#eq" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="eq(x$1:AnyRef):Boolean"></a><a id="eq(AnyRef):Boolean"></a>
+      <span class="permalink">
+      <a 
href="../../datafu/spark/Aggregators$$MultiSet.html#eq(x$1:AnyRef):Boolean" 
title="Permalink">
+        <i class="material-icons"></i>
+      </a>
+    </span>
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">eq</span><span class="params">(<span 
name="arg0">arg0: <span class="extype" 
name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <span 
class="extype" name="scala.Boolean">Boolean</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#equals" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="equals(x$1:Any):Boolean"></a><a id="equals(Any):Boolean"></a>
+      <span class="permalink">
+      <a 
href="../../datafu/spark/Aggregators$$MultiSet.html#equals(x$1:Any):Boolean" 
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+        <i class="material-icons"></i>
+      </a>
+    </span>
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">equals</span><span class="params">(<span 
name="arg0">arg0: <span class="extype" 
name="scala.Any">Any</span></span>)</span><span class="result">: <span 
class="extype" name="scala.Boolean">Boolean</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
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class="extype" name="org.apache.spark.sql.Encoder">Encoder</span>[<span 
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+      <span class="symbol">
+        <span class="name">reduce</span><span class="params">(<span 
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+      <span class="symbol">
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name="T0">T0</span>]</span><span class="params">(<span name="arg0">arg0: ⇒ 
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+      </span>
+      <span class="symbol">
+        <span class="name">toColumn</span><span class="result">: <span 
class="extype" name="org.apache.spark.sql.TypedColumn">TypedColumn</span>[<span 
class="extype" name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.collection.mutable.Map">Map</span>[<span class="extype" 
name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Int">Int</span>]]</span>
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+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
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+        <span class="name">toString</span><span class="params">()</span><span 
class="result">: <span class="extype" 
name="java.lang.String">String</span></span>
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+      <span class="symbol">
+        <span class="name">wait</span><span class="params">()</span><span 
class="result">: <span class="extype" name="scala.Unit">Unit</span></span>
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+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span 
name="arg0">arg0: <span class="extype" name="scala.Long">Long</span></span>, 
<span name="arg1">arg1: <span class="extype" 
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+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span 
name="arg0">arg0: <span class="extype" 
name="scala.Long">Long</span></span>)</span><span class="result">: <span 
class="extype" name="scala.Unit">Unit</span></span>
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+                <span class="name">@throws</span><span class="args">(<span>
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+      <span class="symbol">
+        <span class="name">zero</span><span class="result">: <span 
class="extype" name="scala.collection.mutable.Map">Map</span>[<span 
class="extype" name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Int">Int</span>]</span>
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+
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+
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+
+        <div id="inheritedMembers">
+        <div class="parent" name="org.apache.spark.sql.expressions.Aggregator">
+              <h3>Inherited from <span class="extype" 
name="org.apache.spark.sql.expressions.Aggregator">Aggregator</span>[<span 
class="extype" name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.collection.mutable.Map">Map</span>[<span class="extype" 
name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Int">Int</span>], <span class="extype" 
name="scala.collection.mutable.Map">Map</span>[<span class="extype" 
name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Int">Int</span>]]</h3>
+            </div><div class="parent" name="scala.Serializable">
+              <h3>Inherited from <span class="extype" 
name="scala.Serializable">Serializable</span></h3>
+            </div><div class="parent" name="java.io.Serializable">
+              <h3>Inherited from <span class="extype" 
name="java.io.Serializable">Serializable</span></h3>
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Added: datafu/site/docs/spark/2.1.0/datafu/spark/Aggregators$.html
URL: 
http://svn.apache.org/viewvc/datafu/site/docs/spark/2.1.0/datafu/spark/Aggregators%24.html?rev=1925323&view=auto
==============================================================================
--- datafu/site/docs/spark/2.1.0/datafu/spark/Aggregators$.html (added)
+++ datafu/site/docs/spark/2.1.0/datafu/spark/Aggregators$.html Tue Apr 29 
18:54:44 2025
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+                        <a class="object" href="" title="This file contains 
UDAFs which extend the Aggregator class."></a>
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extend the Aggregator class.">Aggregators</a>
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name="datafu">datafu</a>.<a href="index.html" class="extype" 
name="datafu.spark">spark</a></p>
+        <h1>Aggregators<span class="permalink">
+      <a href="../../datafu/spark/Aggregators$.html" title="Permalink">
+        <i class="material-icons"></i>
+      </a>
+    </span></h1>
+        <h3><span class="morelinks"></span></h3>
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+
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+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">object</span>
+      </span>
+      <span class="symbol">
+        <span class="name">Aggregators</span>
+      </span>
+      </h4>
+
+      
+          <div id="comment" class="fullcommenttop"><div class="comment 
cmt"><p>This file contains UDAFs which extend the Aggregator class.
+They were migrated from previous implementations which used 
UserDefinedAggregateFunction</p><p>The implementations below reuse the 
intermediate buffer in the merge function
+( see 
https://stackoverflow.com/questions/77713959/can-you-reuse-one-of-the-buffers-in-the-merge-method-of-spark-aggregators
 )
+</p></div><div class="toggleContainer block">
+          <span class="toggle">
+            Linear Supertypes
+          </span>
+          <div class="superTypes hiddenContent"><span class="extype" 
name="scala.AnyRef">AnyRef</span>, <span class="extype" 
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+                    <li class="in" 
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+
+      <div id="template">
+        <div id="allMembers">
+        
+
+        <div id="types" class="types members">
+              <h3>Type Members</h3>
+              <ol><li name="datafu.spark.Aggregators.CountDistinctUpTo" 
visbl="pub" class="indented0 " data-isabs="false" fullComment="no" 
group="Ungrouped">
+      <a 
id="CountDistinctUpToextendsAggregator[String,scala.collection.mutable.Set[String],Int]withSerializable"></a><a
 id="CountDistinctUpTo:CountDistinctUpTo"></a>
+      <span class="permalink">
+      <a href="../../datafu/spark/Aggregators$$CountDistinctUpTo.html" 
title="Permalink">
+        <i class="material-icons"></i>
+      </a>
+    </span>
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">class</span>
+      </span>
+      <span class="symbol">
+        <a title="Counts number of distinct records, but only up to a preset 
amount - more efficient than an unbounded count" 
href="Aggregators$$CountDistinctUpTo.html"><span 
class="name">CountDistinctUpTo</span></a><span class="result"> extends <span 
class="extype" 
name="org.apache.spark.sql.expressions.Aggregator">Aggregator</span>[<span 
class="extype" name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.collection.mutable.Set">Set</span>[<span class="extype" 
name="scala.Predef.String">String</span>], <span class="extype" 
name="scala.Int">Int</span>] with <span class="extype" 
name="scala.Serializable">Serializable</span></span>
+      </span>
+      
+      <p class="shortcomment cmt">Counts number of distinct records, but only 
up to a preset amount -
+more efficient than an unbounded count
+</p>
+    </li><li name="datafu.spark.Aggregators.MapSetMerge" visbl="pub" 
class="indented0 " data-isabs="false" fullComment="no" group="Ungrouped">
+      <a 
id="MapSetMergeextendsAggregator[scala.collection.mutable.Map[String,Array[String]],scala.collection.mutable.Map[String,scala.collection.immutable.Set[String]],scala.collection.mutable.Map[String,Array[String]]]withSerializable"></a><a
 id="MapSetMerge:MapSetMerge"></a>
+      <span class="permalink">
+      <a href="../../datafu/spark/Aggregators$$MapSetMerge.html" 
title="Permalink">
+        <i class="material-icons"></i>
+      </a>
+    </span>
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">class</span>
+      </span>
+      <span class="symbol">
+        <a title="Performs a deep merge of maps of kind string -&gt; 
set&lt;string&gt;" href="Aggregators$$MapSetMerge.html"><span 
class="name">MapSetMerge</span></a><span class="result"> extends <span 
class="extype" 
name="org.apache.spark.sql.expressions.Aggregator">Aggregator</span>[<span 
class="extype" name="scala.collection.mutable.Map">Map</span>[<span 
class="extype" name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Array">Array</span>[<span class="extype" 
name="scala.Predef.String">String</span>]], <span class="extype" 
name="scala.collection.mutable.Map">Map</span>[<span class="extype" 
name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.collection.immutable.Set">Set</span>[<span class="extype" 
name="scala.Predef.String">String</span>]], <span class="extype" 
name="scala.collection.mutable.Map">Map</span>[<span class="extype" 
name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Array">Array</span>[<span class=
 "extype" name="scala.Predef.String">String</span>]]] with <span class="extype" 
name="scala.Serializable">Serializable</span></span>
+      </span>
+      
+      <p class="shortcomment cmt">Performs a deep merge of maps of kind string 
-&gt; set&lt;string&gt;
+</p>
+    </li><li name="datafu.spark.Aggregators.MultiArraySet" visbl="pub" 
class="indented0 " data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a 
id="MultiArraySet[IN]extendsAggregator[Array[IN],scala.collection.mutable.Map[IN,Int],scala.collection.mutable.Map[IN,Int]]withSerializable"></a><a
 id="MultiArraySet[IN]:MultiArraySet[IN]"></a>
+      <span class="permalink">
+      <a href="../../datafu/spark/Aggregators$$MultiArraySet.html" 
title="Permalink">
+        <i class="material-icons"></i>
+      </a>
+    </span>
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">class</span>
+      </span>
+      <span class="symbol">
+        <a title="Essentially the same as MultiSet, but gets an Array for 
input." href="Aggregators$$MultiArraySet.html"><span 
class="name">MultiArraySet</span></a><span class="tparams">[<span 
name="IN">IN</span>]</span><span class="result"> extends <span class="extype" 
name="org.apache.spark.sql.expressions.Aggregator">Aggregator</span>[<span 
class="extype" name="scala.Array">Array</span>[<span class="extype" 
name="datafu.spark.Aggregators.MultiArraySet.IN">IN</span>], <span 
class="extype" name="scala.collection.mutable.Map">Map</span>[<span 
class="extype" name="datafu.spark.Aggregators.MultiArraySet.IN">IN</span>, 
<span class="extype" name="scala.Int">Int</span>], <span class="extype" 
name="scala.collection.mutable.Map">Map</span>[<span class="extype" 
name="datafu.spark.Aggregators.MultiArraySet.IN">IN</span>, <span 
class="extype" name="scala.Int">Int</span>]] with <span class="extype" 
name="scala.Serializable">Serializable</span></span>
+      </span>
+      
+      <p class="shortcomment cmt">Essentially the same as MultiSet, but gets 
an Array for input.</p><div class="fullcomment"><div class="comment 
cmt"><p>Essentially the same as MultiSet, but gets an Array for input.
+There is an extra option to limit the number of keys (like @CountDistinctUpTo)
+</p></div></div>
+    </li><li name="datafu.spark.Aggregators.MultiSet" visbl="pub" 
class="indented0 " data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a 
id="MultiSetextendsAggregator[String,scala.collection.mutable.Map[String,Int],scala.collection.mutable.Map[String,Int]]withSerializable"></a><a
 id="MultiSet:MultiSet"></a>
+      <span class="permalink">
+      <a href="../../datafu/spark/Aggregators$$MultiSet.html" 
title="Permalink">
+        <i class="material-icons"></i>
+      </a>
+    </span>
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">class</span>
+      </span>
+      <span class="symbol">
+        <a title="Like Google's MultiSets." 
href="Aggregators$$MultiSet.html"><span class="name">MultiSet</span></a><span 
class="result"> extends <span class="extype" 
name="org.apache.spark.sql.expressions.Aggregator">Aggregator</span>[<span 
class="extype" name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.collection.mutable.Map">Map</span>[<span class="extype" 
name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Int">Int</span>], <span class="extype" 
name="scala.collection.mutable.Map">Map</span>[<span class="extype" 
name="scala.Predef.String">String</span>, <span class="extype" 
name="scala.Int">Int</span>]] with <span class="extype" 
name="scala.Serializable">Serializable</span></span>
+      </span>
+      
+      <p class="shortcomment cmt">Like Google's MultiSets.</p><div 
class="fullcomment"><div class="comment cmt"><p>Like Google's MultiSets.
+Aggregate function that creates a map of key to its count.
+Expects as input a column of type String
+</p></div></div>
+    </li></ol>
+            </div>
+
+        
+
+        <div class="values members">
+              <h3>Value Members</h3>
+              <ol>
+                <li name="scala.AnyRef#!=" visbl="pub" class="indented0 " 
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+      </span>
+      <span class="symbol">
+        <span title="gt4s: $bang$eq" class="name">!=</span><span 
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+      </span>
+      
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+    </li><li name="scala.AnyRef###" visbl="pub" class="indented0 " 
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+      </span>
+      <span class="symbol">
+        <span title="gt4s: $hash$hash" class="name">##</span><span 
class="params">()</span><span class="result">: <span class="extype" 
name="scala.Int">Int</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef → Any</dd></dl></div>
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+        <span title="gt4s: $eq$eq" class="name">==</span><span 
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+      </span>
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+    </li><li name="scala.Any#asInstanceOf" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="asInstanceOf[T0]:T0"></a>
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+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">asInstanceOf</span><span class="tparams">[<span 
name="T0">T0</span>]</span><span class="result">: <span class="extype" 
name="scala.Any.asInstanceOf.T0">T0</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
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+    </li><li name="scala.AnyRef#clone" visbl="prt" class="indented0 " 
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+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">clone</span><span class="params">()</span><span 
class="result">: <span class="extype" name="scala.AnyRef">AnyRef</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> 
<dt>Attributes</dt><dd>protected[<span class="extype" 
name="java.lang">lang</span>] </dd><dt>Definition 
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+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" 
name="classOf[java.lang.CloneNotSupportedException]">...</span>
+    </span>)</span>
+              
+                <span class="name">@native</span><span class="args">()</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#eq" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="eq(x$1:AnyRef):Boolean"></a><a id="eq(AnyRef):Boolean"></a>
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+      <a href="../../datafu/spark/Aggregators$.html#eq(x$1:AnyRef):Boolean" 
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+    </span>
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">eq</span><span class="params">(<span 
name="arg0">arg0: <span class="extype" 
name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <span 
class="extype" name="scala.Boolean">Boolean</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
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+    </li><li name="scala.AnyRef#equals" visbl="pub" class="indented0 " 
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+      <a id="equals(x$1:Any):Boolean"></a><a id="equals(Any):Boolean"></a>
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+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">equals</span><span class="params">(<span 
name="arg0">arg0: <span class="extype" 
name="scala.Any">Any</span></span>)</span><span class="result">: <span 
class="extype" name="scala.Boolean">Boolean</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
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+    </li><li name="scala.AnyRef#finalize" visbl="prt" class="indented0 " 
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+      <a id="finalize():Unit"></a>
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+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">finalize</span><span class="params">()</span><span 
class="result">: <span class="extype" name="scala.Unit">Unit</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> 
<dt>Attributes</dt><dd>protected[<span class="extype" 
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+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="symbol">classOf[java.lang.Throwable]</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#getClass" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="getClass():Class[_]"></a>
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+      <a href="../../datafu/spark/Aggregators$.html#getClass():Class[_]" 
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+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">getClass</span><span class="params">()</span><span 
class="result">: <span class="extype" 
name="java.lang.Class">Class</span>[_]</span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
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+                <span class="name">@native</span><span class="args">()</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#hashCode" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="hashCode():Int"></a>
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+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">hashCode</span><span class="params">()</span><span 
class="result">: <span class="extype" name="scala.Int">Int</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef → Any</dd><dt>Annotations</dt><dd>
+                <span class="name">@native</span><span class="args">()</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.Any#isInstanceOf" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="isInstanceOf[T0]:Boolean"></a>
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+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">isInstanceOf</span><span class="tparams">[<span 
name="T0">T0</span>]</span><span class="result">: <span class="extype" 
name="scala.Boolean">Boolean</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>Any</dd></dl></div>
+    </li><li name="scala.AnyRef#ne" visbl="pub" class="indented0 " 
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+      <a id="ne(x$1:AnyRef):Boolean"></a><a id="ne(AnyRef):Boolean"></a>
+      <span class="permalink">
+      <a href="../../datafu/spark/Aggregators$.html#ne(x$1:AnyRef):Boolean" 
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+    </span>
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">ne</span><span class="params">(<span 
name="arg0">arg0: <span class="extype" 
name="scala.AnyRef">AnyRef</span></span>)</span><span class="result">: <span 
class="extype" name="scala.Boolean">Boolean</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef</dd></dl></div>
+    </li><li name="scala.AnyRef#notify" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notify():Unit"></a>
+      <span class="permalink">
+      <a href="../../datafu/spark/Aggregators$.html#notify():Unit" 
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+    </span>
+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notify</span><span class="params">()</span><span 
class="result">: <span class="extype" name="scala.Unit">Unit</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@native</span><span class="args">()</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#notifyAll" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="notifyAll():Unit"></a>
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+      <a href="../../datafu/spark/Aggregators$.html#notifyAll():Unit" 
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+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">notifyAll</span><span class="params">()</span><span 
class="result">: <span class="extype" name="scala.Unit">Unit</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
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+                <span class="name">@native</span><span class="args">()</span>
+              
+        </dd></dl></div>
+    </li><li name="datafu.spark.Aggregators#ss" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="no" group="Ungrouped">
+      <a id="ss:org.apache.spark.sql.SparkSession"></a><a 
id="ss:SparkSession"></a>
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+      <a 
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+    </span>
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">val</span>
+      </span>
+      <span class="symbol">
+        <span class="name">ss</span><span class="result">: <span 
class="extype" 
name="org.apache.spark.sql.SparkSession">SparkSession</span></span>
+      </span>
+      
+      
+    </li><li name="scala.AnyRef#synchronized" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="synchronized[T0](x$1:=&gt;T0):T0"></a><a 
id="synchronized[T0](⇒T0):T0"></a>
+      <span class="permalink">
+      <a 
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+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">synchronized</span><span class="tparams">[<span 
name="T0">T0</span>]</span><span class="params">(<span name="arg0">arg0: ⇒ 
<span class="extype" 
name="java.lang.AnyRef.synchronized.T0">T0</span></span>)</span><span 
class="result">: <span class="extype" 
name="java.lang.AnyRef.synchronized.T0">T0</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
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+    </li><li name="scala.AnyRef#toString" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="toString():String"></a>
+      <span class="permalink">
+      <a href="../../datafu/spark/Aggregators$.html#toString():String" 
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+    </span>
+      <span class="modifier_kind">
+        <span class="modifier"></span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">toString</span><span class="params">()</span><span 
class="result">: <span class="extype" 
name="java.lang.String">String</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef → Any</dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" class="indented0 " 
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+      <a id="wait():Unit"></a>
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+      <a href="../../datafu/spark/Aggregators$.html#wait():Unit" 
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+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">()</span><span 
class="result">: <span class="extype" name="scala.Unit">Unit</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" 
name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long,x$2:Int):Unit"></a><a id="wait(Long,Int):Unit"></a>
+      <span class="permalink">
+      <a 
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+      <span class="modifier_kind">
+        <span class="modifier">final </span>
+        <span class="kind">def</span>
+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span 
name="arg0">arg0: <span class="extype" name="scala.Long">Long</span></span>, 
<span name="arg1">arg1: <span class="extype" 
name="scala.Int">Int</span></span>)</span><span class="result">: <span 
class="extype" name="scala.Unit">Unit</span></span>
+      </span>
+      
+      <div class="fullcomment"><dl class="attributes block"> <dt>Definition 
Classes</dt><dd>AnyRef</dd><dt>Annotations</dt><dd>
+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" 
name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+        </dd></dl></div>
+    </li><li name="scala.AnyRef#wait" visbl="pub" class="indented0 " 
data-isabs="false" fullComment="yes" group="Ungrouped">
+      <a id="wait(x$1:Long):Unit"></a><a id="wait(Long):Unit"></a>
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+        <span class="modifier">final </span>
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+      </span>
+      <span class="symbol">
+        <span class="name">wait</span><span class="params">(<span 
name="arg0">arg0: <span class="extype" 
name="scala.Long">Long</span></span>)</span><span class="result">: <span 
class="extype" name="scala.Unit">Unit</span></span>
+      </span>
+      
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+                <span class="name">@throws</span><span class="args">(<span>
+      
+      <span class="defval" 
name="classOf[java.lang.InterruptedException]">...</span>
+    </span>)</span>
+              
+                <span class="name">@native</span><span class="args">()</span>
+              
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