Package org.apache.lucene.document

Class FloatPointNearestNeighbor.NearestVisitor

java.lang.Object

org.apache.lucene.document.FloatPointNearestNeighbor.NearestVisitor

All Implemented Interfaces:

PointValues.IntersectVisitor

Enclosing class:

FloatPointNearestNeighbor

private static class FloatPointNearestNeighbor.NearestVisitor
extends java.lang.Object
implements PointValues.IntersectVisitor

Field Summary

Fields

Modifier and Type	Field	Description
(package private) int	bottomNearestDistanceDoc
(package private) double	bottomNearestDistanceSquared
(package private) int	curDocBase
(package private) Bits	curLiveDocs
private int	dims
(package private) java.util.PriorityQueue<FloatPointNearestNeighbor.NearestHit>	hitQueue
(package private) float[]	origin
(package private) int	topN

Constructor Summary

Constructors

Constructor	Description
NearestVisitor(java.util.PriorityQueue<FloatPointNearestNeighbor.NearestHit> hitQueue, int topN, float[] origin)

Method Summary

Modifier and Type	Method	Description
PointValues.Relation	compare(byte[] minPackedValue, byte[] maxPackedValue)	Called for non-leaf cells to test how the cell relates to the query, to determine how to further recurse down the tree.
private void	updateBottomNearestDistance()
void	visit(int docID)	Called for all documents in a leaf cell that's fully contained by the query.
void	visit(int docID, byte[] packedValue)	Called for all documents in a leaf cell that crosses the query.

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.index.PointValues.IntersectVisitor

grow, visit

Field Detail

curDocBase

int curDocBase

curLiveDocs

Bits curLiveDocs

topN

final int topN

hitQueue

final java.util.PriorityQueue<FloatPointNearestNeighbor.NearestHit> hitQueue

origin

final float[] origin

dims

private final int dims

bottomNearestDistanceSquared

double bottomNearestDistanceSquared

bottomNearestDistanceDoc

int bottomNearestDistanceDoc

Constructor Detail

NearestVisitor

public NearestVisitor(java.util.PriorityQueue<FloatPointNearestNeighbor.NearestHit> hitQueue,
                      int topN,
                      float[] origin)

Method Detail

visit

public void visit(int docID)

Description copied from interface: PointValues.IntersectVisitor

Called for all documents in a leaf cell that's fully contained by the query. The consumer should blindly accept the docID.

Specified by:

visit in interface PointValues.IntersectVisitor

visit

public void visit(int docID,
                  byte[] packedValue)

Description copied from interface: PointValues.IntersectVisitor

Called for all documents in a leaf cell that crosses the query. The consumer should scrutinize the packedValue to decide whether to accept it. In the 1D case, values are visited in increasing order, and in the case of ties, in increasing docID order.

Specified by:

visit in interface PointValues.IntersectVisitor

updateBottomNearestDistance

private void updateBottomNearestDistance()

compare

public PointValues.Relation compare(byte[] minPackedValue,
                                    byte[] maxPackedValue)

Description copied from interface: PointValues.IntersectVisitor

Called for non-leaf cells to test how the cell relates to the query, to determine how to further recurse down the tree.

Specified by:

compare in interface PointValues.IntersectVisitor