org.apache.solr.search.function.distance

Class GeohashFunction

java.lang.Object

org.apache.lucene.queries.function.ValueSource

org.apache.solr.search.function.distance.GeohashFunction

public class GeohashFunction
extends org.apache.lucene.queries.function.ValueSource

Takes in a latitude and longitude ValueSource and produces a GeoHash.

Ex: geohash(lat, lon)

Note, there is no reciprocal function for this.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.lucene.queries.function.ValueSource	lat
protected org.apache.lucene.queries.function.ValueSource	lon

Constructor Summary

Constructors

Constructor and Description
GeohashFunction(org.apache.lucene.queries.function.ValueSource lat, org.apache.lucene.queries.function.ValueSource lon)

Method Summary

Modifier and Type	Method and Description
String	description()
boolean	equals(Object o)
org.apache.lucene.queries.function.FunctionValues	getValues(Map context, org.apache.lucene.index.AtomicReaderContext readerContext)
int	hashCode()
protected String	name()

Methods inherited from class org.apache.lucene.queries.function.ValueSource

createWeight, getSortField, newContext, toString

Methods inherited from class java.lang.Object

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

Field Detail

lat

protected org.apache.lucene.queries.function.ValueSource lat

lon

protected org.apache.lucene.queries.function.ValueSource lon

Constructor Detail

GeohashFunction

public GeohashFunction(org.apache.lucene.queries.function.ValueSource lat,
                       org.apache.lucene.queries.function.ValueSource lon)

Method Detail

name

protected String name()

getValues

public org.apache.lucene.queries.function.FunctionValues getValues(Map context,
                                                                   org.apache.lucene.index.AtomicReaderContext readerContext)
                                                            throws IOException

Specified by:

getValues in class org.apache.lucene.queries.function.ValueSource

Throws:

IOException

equals

public boolean equals(Object o)

Specified by:

equals in class org.apache.lucene.queries.function.ValueSource

hashCode

public int hashCode()

Specified by:

hashCode in class org.apache.lucene.queries.function.ValueSource

description

public String description()

Specified by:

description in class org.apache.lucene.queries.function.ValueSource