public class SumAggregator extends AggregatorNode
GroupingExpression
. It evaluates to the sum of the values that
the contained expression evaluated to over all the inputs.Constructor and Description |
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SumAggregator(GroupingExpression exp)
Constructs a new instance of this class.
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getExpression, resolveLevel, visit
asImage, asString, getLevel, setLabel
getLabel, toString
public SumAggregator(GroupingExpression exp)
exp
- The expression to aggregate on.Copyright © 2017. All rights reserved.