org.apache.flink.graph.library

Class ConnectedComponents.CCMessenger<K,VV extends Comparable<VV>>

java.lang.Object

org.apache.flink.graph.spargel.ScatterFunction<K,VV,VV,NullValue>

org.apache.flink.graph.library.ConnectedComponents.CCMessenger<K,VV>

All Implemented Interfaces:

Serializable, ResultTypeQueryable<VV>

Enclosing class:

ConnectedComponents<K,VV extends Comparable<VV>,EV>

public static final class ConnectedComponents.CCMessenger<K,VV extends Comparable<VV>>
extends ScatterFunction<K,VV,VV,NullValue>
implements ResultTypeQueryable<VV>

Sends the current vertex value to all adjacent vertices.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CCMessenger(TypeInformation<VV> typeInformation)

Method Summary

Modifier and Type	Method and Description
TypeInformation<VV>	getProducedType() Gets the data type (as a TypeInformation) produced by this function or input format.
void	sendMessages(Vertex<K,VV> 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

CCMessenger

public CCMessenger(TypeInformation<VV> typeInformation)

Method Detail

sendMessages

public void sendMessages(Vertex<K,VV> 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<K,VV extends Comparable<VV>,VV extends Comparable<VV>,NullValue>

Parameters:

vertex - The vertex that was changed.

Throws:

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

getProducedType

public TypeInformation<VV> getProducedType()

Description copied from interface: ResultTypeQueryable

Gets the data type (as a TypeInformation) produced by this function or input format.

Specified by:

getProducedType in interface ResultTypeQueryable<VV extends Comparable<VV>>

Returns:

The data type produced by this function or input format.