org.apache.flink.graph.examples

Class IncrementalSSSP.InvalidateMessenger

java.lang.Object

org.apache.flink.graph.spargel.ScatterFunction<Long,Double,Double,Double>

org.apache.flink.graph.examples.IncrementalSSSP.InvalidateMessenger

All Implemented Interfaces:

Serializable

Enclosing class:

IncrementalSSSP

public static final class IncrementalSSSP.InvalidateMessenger
extends ScatterFunction<Long,Double,Double,Double>

Initiate or propagate INVALIDATE messages.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
InvalidateMessenger(Edge<Long,Double> edgeToBeRemoved)

Method Summary

Modifier and Type	Method and Description
void	sendMessages(Vertex<Long,Double> vertex) This method is invoked once per superstep for each vertex that was changed in that superstep.

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

getBroadcastSet, getDirection, getEdges, getInDegree, getIterationAggregator, getNumberOfVertices, getOutDegree, getPreviousIterationAggregate, getSuperstepNumber, postSuperstep, preSuperstep, sendMessageTo, sendMessageToAllNeighbors

Methods inherited from class java.lang.Object

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

Constructor Detail

InvalidateMessenger

public InvalidateMessenger(Edge<Long,Double> edgeToBeRemoved)

Method Detail

sendMessages

public void sendMessages(Vertex<Long,Double> vertex)
                  throws Exception

Description copied from class: ScatterFunction

This method is invoked once per superstep for each vertex that was changed in that superstep. It needs to produce the messages that will be received by vertices in the next superstep.

Specified by:

sendMessages in class ScatterFunction<Long,Double,Double,Double>

Parameters:

vertex - The vertex that was changed.

Throws:

Exception - The computation may throw exceptions, which causes the superstep to fail.