org.apache.lucene.spatial.util
Class DistanceToShapeValueSource

java.lang.Object
  org.apache.lucene.queries.function.ValueSource
      org.apache.lucene.spatial.util.DistanceToShapeValueSource

public class DistanceToShapeValueSource
extends ValueSource

The distance from a provided Point to a Point retrieved from a ValueSource via FunctionValues.objectVal(int). The distance is calculated via a DistanceCalculator.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Constructor Summary

DistanceToShapeValueSource(ValueSource shapeValueSource, com.spatial4j.core.shape.Point queryPoint, double multiplier, com.spatial4j.core.context.SpatialContext ctx)

Method Summary

void	createWeight(Map context, IndexSearcher searcher)
String	description()
boolean	equals(Object o)
FunctionValues	getValues(Map context, AtomicReaderContext readerContext)
int	hashCode()

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

getSortField, newContext, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

DistanceToShapeValueSource

public DistanceToShapeValueSource(ValueSource shapeValueSource,
                                  com.spatial4j.core.shape.Point queryPoint,
                                  double multiplier,
                                  com.spatial4j.core.context.SpatialContext ctx)

Method Detail

description

public String description()

Specified by:

description in class ValueSource

createWeight

public void createWeight(Map context,
                         IndexSearcher searcher)
                  throws IOException

Overrides:

createWeight in class ValueSource

Throws:

IOException

getValues

public FunctionValues getValues(Map context,
                                AtomicReaderContext readerContext)
                         throws IOException

Specified by:

getValues in class ValueSource

Throws:

IOException

equals

public boolean equals(Object o)

Specified by:

equals in class ValueSource

hashCode

public int hashCode()

Specified by:

hashCode in class ValueSource