org.apache.flink.graph.utils

Class VertexToTuple2Map<K,VV>

java.lang.Object

org.apache.flink.graph.utils.VertexToTuple2Map<K,VV>

Type Parameters:

K - vertex ID type

VV - vertex value type

All Implemented Interfaces:

Serializable, Function, MapFunction<Vertex<K,VV>,Tuple2<K,VV>>

public class VertexToTuple2Map<K,VV>
extends Object
implements MapFunction<Vertex<K,VV>,Tuple2<K,VV>>

Create a Tuple2 DataSet from a Vertex DataSet.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
VertexToTuple2Map()

Method Summary

Modifier and Type	Method and Description
Tuple2<K,VV>	map(Vertex<K,VV> vertex) The mapping method.

Methods inherited from class java.lang.Object

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

Constructor Detail

VertexToTuple2Map

public VertexToTuple2Map()

Method Detail

map

public Tuple2<K,VV> map(Vertex<K,VV> vertex)

Description copied from interface: MapFunction

The mapping method. Takes an element from the input data set and transforms it into exactly one element.

Specified by:

map in interface MapFunction<Vertex<K,VV>,Tuple2<K,VV>>

Parameters:

vertex - The input value.

Returns:

The transformed value