Module org.apache.lucene.core

Package org.apache.lucene.document

Class LatLonPointDistanceFeatureQuery

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.document.LatLonPointDistanceFeatureQuery

final class LatLonPointDistanceFeatureQuery
extends Query

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	LatLonPointDistanceFeatureQuery.DistanceScorer

Field Summary

Fields

Modifier and Type	Field	Description
private final String	field
private final double	originLat
private final double	originLon
private final double	pivotDistance

Constructor Summary

Constructors

Constructor	Description
LatLonPointDistanceFeatureQuery(String field, double originLat, double originLon, double pivotDistance)

Method Summary

Modifier and Type	Method	Description
Weight	createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost)	Expert: Constructs an appropriate Weight implementation for this query.
final boolean	equals(Object o)	Override and implement query instance equivalence properly in a subclass.
private boolean	equalsTo(LatLonPointDistanceFeatureQuery other)
private double	getDistanceFromEncoded(long encoded)
private double	getDistanceKeyFromEncoded(long encoded)
int	hashCode()	Override and implement query hash code properly in a subclass.
String	toString(String field)	Prints a query to a string, with field assumed to be the default field and omitted.
void	visit(QueryVisitor visitor)	Recurse through the query tree, visiting any child queries.

Methods inherited from class org.apache.lucene.search.Query

classHash, rewrite, rewrite, sameClassAs, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

field

private final String field

originLat

private final double originLat

originLon

private final double originLon

pivotDistance

private final double pivotDistance

Constructor Details

LatLonPointDistanceFeatureQuery

LatLonPointDistanceFeatureQuery(String field,
 double originLat,
 double originLon,
 double pivotDistance)

Method Details

visit

public void visit(QueryVisitor visitor)

Description copied from class: Query

Recurse through the query tree, visiting any child queries.

Specified by:

visit in class Query

Parameters:

visitor - a QueryVisitor to be called by each query in the tree

equals

public final boolean equals(Object o)

Description copied from class: Query

Override and implement query instance equivalence properly in a subclass. This is required so that QueryCache works properly.

Typically a query will be equal to another only if it's an instance of the same class and its document-filtering properties are identical to those of the other instance. Utility methods are provided for certain repetitive code.

Specified by:

equals in class Query

See Also:

• Query.sameClassAs(Object)
• Query.classHash()

equalsTo

private boolean equalsTo(LatLonPointDistanceFeatureQuery other)

hashCode

public int hashCode()

Description copied from class: Query

Override and implement query hash code properly in a subclass. This is required so that QueryCache works properly.

Specified by:

hashCode in class Query

See Also:

• Query.equals(Object)

toString

public String toString(String field)

Description copied from class: Query

Prints a query to a string, with field assumed to be the default field and omitted.

Specified by:

toString in class Query

createWeight

public Weight createWeight(IndexSearcher searcher,
 ScoreMode scoreMode,
 float boost)
                    throws IOException

Description copied from class: Query

Expert: Constructs an appropriate Weight implementation for this query.

Only implemented by primitive queries, which re-write to themselves.

Overrides:

createWeight in class Query

Parameters:

scoreMode - How the produced scorers will be consumed.

boost - The boost that is propagated by the parent queries.

Throws:

IOException

getDistanceFromEncoded

private double getDistanceFromEncoded(long encoded)

getDistanceKeyFromEncoded

private double getDistanceKeyFromEncoded(long encoded)