Package org.apache.lucene.search

Class PointInSetQuery.SinglePointVisitor

java.lang.Object

org.apache.lucene.search.PointInSetQuery.SinglePointVisitor

All Implemented Interfaces:

PointValues.IntersectVisitor

Enclosing class:

PointInSetQuery

private class PointInSetQuery.SinglePointVisitor
extends java.lang.Object
implements PointValues.IntersectVisitor

IntersectVisitor that queries against a highly degenerate shape: a single point. This is used in the > 1D case.

Field Summary

Fields

Modifier and Type	Field	Description
private DocIdSetBuilder.BulkAdder	adder
private byte[]	pointBytes
private DocIdSetBuilder	result

Constructor Summary

Constructors

Constructor	Description
SinglePointVisitor(DocIdSetBuilder result)

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.
void	grow(int count)	Notifies the caller that this many documents are about to be visited
void	setPoint(BytesRef point)
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.
void	visit(DocIdSetIterator iterator, byte[] packedValue)	Similar to PointValues.IntersectVisitor.visit(int, byte[]) but in this case the packedValue can have more than one docID associated to it.

Methods inherited from class java.lang.Object

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

Field Detail

result

private final DocIdSetBuilder result

pointBytes

private final byte[] pointBytes

adder

private DocIdSetBuilder.BulkAdder adder

Constructor Detail

SinglePointVisitor

public SinglePointVisitor(DocIdSetBuilder result)

Method Detail

setPoint

public void setPoint(BytesRef point)

grow

public void grow(int count)

Description copied from interface: PointValues.IntersectVisitor

Notifies the caller that this many documents are about to be visited

Specified by:

grow in interface PointValues.IntersectVisitor

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

visit

public void visit(DocIdSetIterator iterator,
                  byte[] packedValue)
           throws java.io.IOException

Description copied from interface: PointValues.IntersectVisitor

Similar to PointValues.IntersectVisitor.visit(int, byte[]) but in this case the packedValue can have more than one docID associated to it. The provided iterator should not escape the scope of this method so that implementations of PointValues are free to reuse it,

Specified by:

visit in interface PointValues.IntersectVisitor

Throws:

java.io.IOException

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