Package org.apache.sedona.core.knnJudgement

Class KnnJudgementUsingIndex<U extends org.locationtech.jts.geom.Geometry,T extends org.locationtech.jts.geom.Geometry>

java.lang.Object

org.apache.sedona.core.knnJudgement.KnnJudgementUsingIndex<U,T>

All Implemented Interfaces:

Serializable, org.apache.spark.api.java.function.FlatMapFunction<Iterator<org.locationtech.jts.index.SpatialIndex>,T>

public class KnnJudgementUsingIndex<U extends org.locationtech.jts.geom.Geometry,T extends org.locationtech.jts.geom.Geometry>
extends Object
implements org.apache.spark.api.java.function.FlatMapFunction<Iterator<org.locationtech.jts.index.SpatialIndex>,T>, Serializable

The Class KnnJudgementUsingIndex.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
KnnJudgementUsingIndex(U queryCenter, int k)	Instantiates a new knn judgement using index.

Method Summary

Modifier and Type	Method	Description
Iterator<T>	call(Iterator<org.locationtech.jts.index.SpatialIndex> treeIndexes)

Methods inherited from class java.lang.Object

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

Constructor Detail

KnnJudgementUsingIndex

public KnnJudgementUsingIndex(U queryCenter,
                              int k)

Instantiates a new knn judgement using index.

Parameters:

queryCenter - the query center

k - the k

Method Detail

call

public Iterator<T> call(Iterator<org.locationtech.jts.index.SpatialIndex> treeIndexes)
                 throws Exception

Specified by:

call in interface org.apache.spark.api.java.function.FlatMapFunction<U extends org.locationtech.jts.geom.Geometry,T extends org.locationtech.jts.geom.Geometry>

Throws:

Exception