Package org.apache.lucene.search.grouping

Class DoubleRangeFactory

java.lang.Object

org.apache.lucene.search.grouping.DoubleRangeFactory

public class DoubleRangeFactory
extends Object

Groups double values into ranges

Constructor Summary

Constructors

Constructor	Description
DoubleRangeFactory(double min, double width, double max)	Creates a new DoubleRangeFactory

Method Summary

Modifier and Type	Method	Description
DoubleRange	getRange(double value, DoubleRange reuse)	Finds the DoubleRange that a value should be grouped into

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleRangeFactory

public DoubleRangeFactory(double min,
                          double width,
                          double max)

Creates a new DoubleRangeFactory

Parameters:

min - a minimum value; all doubles below this value are grouped into a single range

width - a standard width; all ranges between min and max are this wide, with the exception of the final range which may be up to this width. Ranges are inclusive at the lower end, and exclusive at the upper end.

max - a maximum value; all doubles above this value are grouped into a single range

Method Detail

getRange

public DoubleRange getRange(double value,
                            DoubleRange reuse)

Finds the DoubleRange that a value should be grouped into

Parameters:

value - the value to group

reuse - an existing DoubleRange object to reuse