org.apache.solr.search.function.distance

Class HaversineConstFunction

java.lang.Object

org.apache.solr.search.function.ValueSource

org.apache.solr.search.function.distance.HaversineConstFunction

All Implemented Interfaces:

java.io.Serializable

public class HaversineConstFunction
extends ValueSource

Haversine function with one point constant

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private static double	EARTH_MEAN_DIAMETER
private double	latCenter
private double	latCenterRad_cos
private ValueSource	latSource
private double	lonCenter
private ValueSource	lonSource
private VectorValueSource	p2
static ValueSourceParser	parser

Constructor Summary

Constructors

Constructor and Description
HaversineConstFunction(double latCenter, double lonCenter, VectorValueSource vs)

Method Summary

Modifier and Type	Method and Description
void	createWeight(java.util.Map context, org.apache.lucene.search.Searcher searcher) Implementations should propagate createWeight to sub-ValueSources which can optionally store weight info in the context.
java.lang.String	description() description of field, used in explain()
boolean	equals(java.lang.Object o)
private static double[]	getConstants(MultiValueSource vs)
DocValues	getValues(java.util.Map context, org.apache.lucene.index.IndexReader reader) Gets the values for this reader and the context that was previously passed to createWeight()
int	hashCode()
private static VectorValueSource	makeMV(java.util.List<ValueSource> sources, java.util.List<ValueSource> orig) make a MultiValueSource from two non MultiValueSources
protected java.lang.String	name()
private static MultiValueSource	parsePoint(FunctionQParser fp)
private static MultiValueSource	parseSfield(FunctionQParser fp)

Methods inherited from class org.apache.solr.search.function.ValueSource

getSortField, getValues, newContext, toString

Methods inherited from class java.lang.Object

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

Field Detail

parser

public static ValueSourceParser parser

latCenter

private final double latCenter

lonCenter

private final double lonCenter

p2

private final VectorValueSource p2

latSource

private final ValueSource latSource

lonSource

private final ValueSource lonSource

latCenterRad_cos

private final double latCenterRad_cos

EARTH_MEAN_DIAMETER

private static final double EARTH_MEAN_DIAMETER

See Also:

Constant Field Values

Constructor Detail

HaversineConstFunction

public HaversineConstFunction(double latCenter,
                              double lonCenter,
                              VectorValueSource vs)

Method Detail

makeMV

private static VectorValueSource makeMV(java.util.List<ValueSource> sources,
                                        java.util.List<ValueSource> orig)
                                 throws org.apache.lucene.queryParser.ParseException

make a MultiValueSource from two non MultiValueSources

Throws:

org.apache.lucene.queryParser.ParseException

parsePoint

private static MultiValueSource parsePoint(FunctionQParser fp)
                                    throws org.apache.lucene.queryParser.ParseException

Throws:

org.apache.lucene.queryParser.ParseException

getConstants

private static double[] getConstants(MultiValueSource vs)

parseSfield

private static MultiValueSource parseSfield(FunctionQParser fp)
                                     throws org.apache.lucene.queryParser.ParseException

Throws:

org.apache.lucene.queryParser.ParseException

name

protected java.lang.String name()

getValues

public DocValues getValues(java.util.Map context,
                           org.apache.lucene.index.IndexReader reader)
                    throws java.io.IOException

Description copied from class: ValueSource

Gets the values for this reader and the context that was previously passed to createWeight()

Overrides:

getValues in class ValueSource

Throws:

java.io.IOException

createWeight

public void createWeight(java.util.Map context,
                         org.apache.lucene.search.Searcher searcher)
                  throws java.io.IOException

Description copied from class: ValueSource

Implementations should propagate createWeight to sub-ValueSources which can optionally store weight info in the context. The context object will be passed to getValues() where this info can be retrieved.

Overrides:

createWeight in class ValueSource

Throws:

java.io.IOException

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in class ValueSource

hashCode

public int hashCode()

Specified by:

hashCode in class ValueSource

description

public java.lang.String description()

Description copied from class: ValueSource

description of field, used in explain()

Specified by:

description in class ValueSource