com.yahoo.search.grouping.request

Class AvgAggregator

java.lang.Object

com.yahoo.search.grouping.request.GroupingNode

com.yahoo.search.grouping.request.GroupingExpression

com.yahoo.search.grouping.request.AggregatorNode

com.yahoo.search.grouping.request.AvgAggregator

public class AvgAggregator
extends AggregatorNode

This class represents an average-aggregator in a GroupingExpression. It evaluates to the average value that the contained expression evaluated to over all the inputs.

Author:

Simon Thoresen

Constructor Summary

Constructors

Constructor and Description
AvgAggregator(GroupingExpression exp) Constructs a new instance of this class.

Method Summary

Methods inherited from class com.yahoo.search.grouping.request.AggregatorNode

getExpression, resolveLevel, visit

Methods inherited from class com.yahoo.search.grouping.request.GroupingExpression

asImage, asString, getLevel, setLabel

Methods inherited from class com.yahoo.search.grouping.request.GroupingNode

getLabel, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

AvgAggregator

public AvgAggregator(GroupingExpression exp)

Constructs a new instance of this class.

Parameters:

exp - The expression to aggregate on.