org.apache.flink.graph.examples

Class PageRank.VertexRankUpdater<K>

java.lang.Object

org.apache.flink.graph.spargel.GatherFunction<K,Double,Double>

org.apache.flink.graph.examples.PageRank.VertexRankUpdater<K>

All Implemented Interfaces:

Serializable

Enclosing class:

PageRank<K>

public static final class PageRank.VertexRankUpdater<K>
extends org.apache.flink.graph.spargel.GatherFunction<K,Double,Double>

Function that updates the rank of a vertex by summing up the partial ranks from all incoming messages and then applying the dampening formula.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
VertexRankUpdater(double beta)

Method Summary

Modifier and Type	Method and Description
void	updateVertex(org.apache.flink.graph.Vertex<K,Double> vertex, org.apache.flink.graph.spargel.MessageIterator<Double> inMessages)

Methods inherited from class org.apache.flink.graph.spargel.GatherFunction

getBroadcastSet, getInDegree, getIterationAggregator, getNumberOfVertices, getOutDegree, getPreviousIterationAggregate, getSuperstepNumber, postSuperstep, preSuperstep, setNewVertexValue

Methods inherited from class java.lang.Object

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

Constructor Detail

VertexRankUpdater

public VertexRankUpdater(double beta)

Method Detail

updateVertex

public void updateVertex(org.apache.flink.graph.Vertex<K,Double> vertex,
                         org.apache.flink.graph.spargel.MessageIterator<Double> inMessages)

Specified by:

updateVertex in class org.apache.flink.graph.spargel.GatherFunction<K,Double,Double>