eu.stratosphere.example.java.graph

Class PageRankBasic.Dampener

java.lang.Object

eu.stratosphere.api.common.functions.AbstractFunction

eu.stratosphere.api.java.functions.MapFunction<Tuple2<Long,Double>,Tuple2<Long,Double>>

eu.stratosphere.example.java.graph.PageRankBasic.Dampener

All Implemented Interfaces:

Function, GenericMap<Tuple2<Long,Double>,Tuple2<Long,Double>>, Serializable

Enclosing class:

PageRankBasic

public static final class PageRankBasic.Dampener
extends MapFunction<Tuple2<Long,Double>,Tuple2<Long,Double>>

The function that applies the page rank dampening formula

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Dampener(double dampening, double numVertices)

Method Summary

Modifier and Type	Method and Description
Tuple2<Long,Double>	map(Tuple2<Long,Double> 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

Dampener

public Dampener(double dampening,
                double numVertices)

Method Detail

map

public Tuple2<Long,Double> map(Tuple2<Long,Double> value)

Specified by:

map in interface GenericMap<Tuple2<Long,Double>,Tuple2<Long,Double>>

Specified by:

map in class MapFunction<Tuple2<Long,Double>,Tuple2<Long,Double>>