Module org.apache.lucene.sandbox

Package org.apache.lucene.sandbox.facet.cutters.ranges

Class LongRangeFacetCutter

java.lang.Object

org.apache.lucene.sandbox.facet.cutters.ranges.LongRangeFacetCutter

All Implemented Interfaces:

FacetCutter

Direct Known Subclasses:

NonOverlappingLongRangeFacetCutter, OverlappingLongRangeFacetCutter

public abstract class LongRangeFacetCutter
extends Object
implements FacetCutter

FacetCutter for ranges of long values. It's based on LongRangeCounter class.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static final record	LongRangeFacetCutter.InclusiveRange	Similar to InclusiveRange from LongRangeCounter.
(package private) static final record	LongRangeFacetCutter.LongRangeAndPos
(package private) static class	LongRangeFacetCutter.LongRangeMultivaluedLeafFacetCutter
(package private) static class	LongRangeFacetCutter.LongRangeSingleValuedLeafFacetCutter

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final long[]	boundaries	elementary interval boundaries used for efficient counting (bsearch to find interval)
(package private) final List<LongRangeFacetCutter.InclusiveRange>	elementaryIntervals
(package private) final int[]	pos
(package private) final int	requestedRangeCount
(package private) final LongValuesSource	singleValues
(package private) static final int	SKIP_INTERVAL_POSITION
(package private) final LongRangeFacetCutter.LongRangeAndPos[]	sortedRanges
(package private) final MultiLongValuesSource	valuesSource

Constructor Summary

Constructors

Constructor	Description
LongRangeFacetCutter(MultiLongValuesSource longValuesSource, LongValuesSource singleLongValuesSource, LongRange[] longRanges)

Method Summary

Modifier and Type	Method	Description
private static boolean	areOverlappingRanges(LongRange[] ranges)
(package private) abstract List<LongRangeFacetCutter.InclusiveRange>	buildElementaryIntervals()	Generates non-overlapping intervals that cover requested ranges and gaps in-between.
static LongRangeFacetCutter	create(MultiLongValuesSource longValuesSource, LongRange[] longRanges)
(package private) static LongRangeFacetCutter	createSingleOrMultiValued(MultiLongValuesSource longValuesSource, LongValuesSource singleLongValuesSource, LongRange[] longRanges)	Create FacetCutter for provided value source and long ranges.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.sandbox.facet.cutters.FacetCutter

createLeafCutter, getChildrenOrds, getOrdinalsToRollup

Field Details

valuesSource

final MultiLongValuesSource valuesSource

singleValues

final LongValuesSource singleValues

sortedRanges

final LongRangeFacetCutter.LongRangeAndPos[] sortedRanges

requestedRangeCount

final int requestedRangeCount

elementaryIntervals

final List<LongRangeFacetCutter.InclusiveRange> elementaryIntervals

boundaries

final long[] boundaries

elementary interval boundaries used for efficient counting (bsearch to find interval)

pos

final int[] pos

SKIP_INTERVAL_POSITION

static final int SKIP_INTERVAL_POSITION

See Also:

• Constant Field Values

Constructor Details

LongRangeFacetCutter

LongRangeFacetCutter(MultiLongValuesSource longValuesSource,
 LongValuesSource singleLongValuesSource,
 LongRange[] longRanges)

Method Details

createSingleOrMultiValued

static LongRangeFacetCutter createSingleOrMultiValued(MultiLongValuesSource longValuesSource,
 LongValuesSource singleLongValuesSource,
 LongRange[] longRanges)

Create FacetCutter for provided value source and long ranges.

create

public static LongRangeFacetCutter create(MultiLongValuesSource longValuesSource,
 LongRange[] longRanges)

buildElementaryIntervals

abstract List<LongRangeFacetCutter.InclusiveRange> buildElementaryIntervals()

Generates non-overlapping intervals that cover requested ranges and gaps in-between. Each elementary range refers to a gap, single requested range, or multiple requested ranges when they overlap.

areOverlappingRanges

private static boolean areOverlappingRanges(LongRange[] ranges)