Package com.yahoo.search.grouping.request

Class InterpolatedLookup

java.lang.Object

com.yahoo.search.grouping.request.GroupingNode

com.yahoo.search.grouping.request.GroupingExpression

com.yahoo.search.grouping.request.DocumentValue

com.yahoo.search.grouping.request.InterpolatedLookup

public class InterpolatedLookup
extends DocumentValue

This class represents a lookup in a multivalue document attribute in a GroupingExpression. It takes the attribute (assumed to contain a sorted array) from the input Hit and finds the index that the second (lookup) argument expression would have, with linear interpolation when the lookup argument is between two array element values.

Author:

arnej27959

Constructor Summary

Constructors

Constructor	Description
InterpolatedLookup(String attributeName, GroupingExpression lookupArgument)	Constructs a new instance of this class.

Method Summary

Modifier and Type	Method	Description
InterpolatedLookup	copy()	Returns a deep copy of this
String	getAttributeName()	Returns the name of the attribute to retrieve from the input hit
GroupingExpression	getLookupArgument()	Return the expression to evaluate before lookup

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

resolveLevel

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

asImage, asString, getLevel, getLevelOrNull, setLabel, visit

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

InterpolatedLookup

public InterpolatedLookup(String attributeName,
 GroupingExpression lookupArgument)

Constructs a new instance of this class.

Parameters:

attributeName - the attribute name to assign to this.

lookupArgument - Expression giving a floating-point value for the lookup argument

Method Details

copy

public InterpolatedLookup copy()

Description copied from class: GroupingExpression

Returns a deep copy of this

Specified by:

copy in class GroupingExpression

getAttributeName

public String getAttributeName()

Returns the name of the attribute to retrieve from the input hit

getLookupArgument

public GroupingExpression getLookupArgument()

Return the expression to evaluate before lookup