Package 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 Hult, bratseth

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
AvgAggregator	copy()	Returns a deep copy of this

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, getLevelOrNull, setLabel

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

getImage, getLabel, toString

Methods inherited from class java.lang.Object

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

Constructor Details

AvgAggregator

public AvgAggregator(GroupingExpression expression)

Constructs a new instance of this class.

Parameters:

expression - the expression to aggregate on.

Method Details

copy

public AvgAggregator copy()

Description copied from class: GroupingExpression

Returns a deep copy of this

Specified by:

copy in class GroupingExpression