Package com.yahoo.search.grouping.request

Class FixedWidthFunction

java.lang.Object

com.yahoo.search.grouping.request.GroupingNode

com.yahoo.search.grouping.request.GroupingExpression

com.yahoo.search.grouping.request.FunctionNode

com.yahoo.search.grouping.request.FixedWidthFunction

All Implemented Interfaces:

Iterable<GroupingExpression>

public class FixedWidthFunction
extends FunctionNode

This class represents a fixed-width bucket-function in a GroupingExpression. It maps the input into the given number of buckets by the result of the argument expression.

Author:

Simon Thoresen Hult

Constructor Summary

Constructors

Constructor	Description
FixedWidthFunction(GroupingExpression exp, Number width)	Constructs a new instance of this class.

Method Summary

Modifier and Type	Method	Description
FixedWidthFunction	copy()	Returns a deep copy of this
Number	getWidth()	Returns the number of buckets to divide the result into.

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

args, asList, asList, asList, getArg, getNumArgs, iterator, 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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

FixedWidthFunction

public FixedWidthFunction(GroupingExpression exp,
 Number width)

Constructs a new instance of this class.

Parameters:

exp - The expression to evaluate.

width - The width of each bucket.

Method Details

copy

public FixedWidthFunction copy()

Description copied from class: GroupingExpression

Returns a deep copy of this

Specified by:

copy in class GroupingExpression

getWidth

public Number getWidth()

Returns the number of buckets to divide the result into.

Returns:

The bucket count.