org.apache.flink.graph.examples

Class GSASingleSourceShortestPaths

java.lang.Object

org.apache.flink.graph.examples.GSASingleSourceShortestPaths

All Implemented Interfaces:

org.apache.flink.api.common.ProgramDescription

public class GSASingleSourceShortestPaths
extends Object
implements org.apache.flink.api.common.ProgramDescription

This example shows how to use Gelly's Gather-Sum-Apply iterations.

It is an implementation of the Single-Source-Shortest-Paths algorithm. For a scatter-gather implementation of the same algorithm, please refer to SingleSourceShortestPaths and for a vertex-centric implementation, see PregelSSSP.

The input file is a plain text file and must be formatted as follows: Edges are represented by tuples of srcVertexId, trgVertexId, distance which are separated by tabs. Edges themselves are separated by newlines. For example: 1\t2\t0.1\n1\t3\t1.4\n defines two edges, edge 1-2 with distance 0.1, and edge 1-3 with distance 1.4.

If no parameters are provided, the program is run with default data from SingleSourceShortestPathsData

Constructor Summary

Constructors

Constructor and Description
GSASingleSourceShortestPaths()

Method Summary

Modifier and Type	Method and Description
String	getDescription()
static void	main(String[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

GSASingleSourceShortestPaths

public GSASingleSourceShortestPaths()

Method Detail

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception

getDescription

public String getDescription()

Specified by:

getDescription in interface org.apache.flink.api.common.ProgramDescription