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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.grouping.request;
/**
* This class represents an sum-aggregator in a {@link GroupingExpression}. It evaluates to the sum of the values that
* the contained expression evaluated to over all the inputs.
*
* @author <a href="mailto:simon@yahoo-inc.com">Simon Thoresen</a>
*/
public class SumAggregator extends AggregatorNode {
/**
* Constructs a new instance of this class.
*
* @param exp The expression to aggregate on.
*/
public SumAggregator(GroupingExpression exp) {
super("sum", exp);
}
}
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