eu.stratosphere.example.java.clustering

Class KMeans.CentroidAverager

java.lang.Object

eu.stratosphere.api.common.functions.AbstractFunction

eu.stratosphere.api.java.functions.MapFunction<Tuple3<Integer,KMeans.Point,Long>,KMeans.Centroid>

eu.stratosphere.example.java.clustering.KMeans.CentroidAverager

All Implemented Interfaces:

Function, GenericMap<Tuple3<Integer,KMeans.Point,Long>,KMeans.Centroid>, Serializable

Enclosing class:

KMeans

public static final class KMeans.CentroidAverager
extends MapFunction<Tuple3<Integer,KMeans.Point,Long>,KMeans.Centroid>

Computes new centroid from coordinate sum and count of points.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CentroidAverager()

Method Summary

Modifier and Type	Method and Description
KMeans.Centroid	map(Tuple3<Integer,KMeans.Point,Long> value)

Methods inherited from class eu.stratosphere.api.common.functions.AbstractFunction

close, getIterationRuntimeContext, getRuntimeContext, open, setRuntimeContext

Methods inherited from class java.lang.Object

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

Methods inherited from interface eu.stratosphere.api.common.functions.Function

close, getRuntimeContext, open, setRuntimeContext

Constructor Detail

CentroidAverager

public CentroidAverager()

Method Detail

map

public KMeans.Centroid map(Tuple3<Integer,KMeans.Point,Long> value)

Specified by:

map in interface GenericMap<Tuple3<Integer,KMeans.Point,Long>,KMeans.Centroid>

Specified by:

map in class MapFunction<Tuple3<Integer,KMeans.Point,Long>,KMeans.Centroid>