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<h2 title="Class MutableAggregationBuffer" class="title">Class MutableAggregationBuffer</h2>
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<pre>public abstract class <span class="strong">MutableAggregationBuffer</span>
extends java.lang.Object
implements <a href="../../../../../org/apache/spark/sql/Row.html" title="interface in org.apache.spark.sql">Row</a></pre>
<div class="block">:: Experimental ::
 A <code>Row</code> representing an mutable aggregation buffer.
 <p>
 This is not meant to be extended outside of Spark.</div>
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<td class="colOne"><code><strong><a href="../../../../../org/apache/spark/sql/expressions/MutableAggregationBuffer.html#MutableAggregationBuffer()">MutableAggregationBuffer</a></strong>()</code>&nbsp;</td>
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<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/sql/expressions/MutableAggregationBuffer.html#update(int, java.lang.Object)">update</a></strong>(int&nbsp;i,
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<div class="block">Update the ith value of this buffer.</div>
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