com.soteradefense.dga.pr

Class PageRankComputation

java.lang.Object

org.apache.giraph.conf.DefaultImmutableClassesGiraphConfigurable<I,V,E>

org.apache.giraph.graph.AbstractComputation<I,V,E,M,M>

org.apache.giraph.graph.BasicComputation<Text,DoubleWritable,Text,DoubleWritable>

com.soteradefense.dga.pr.PageRankComputation

All Implemented Interfaces:

AggregatorUsage, ImmutableClassesGiraphConfigurable<Text,DoubleWritable,Text>, TypesHolder<Text,DoubleWritable,Text,DoubleWritable,DoubleWritable>, Computation<Text,DoubleWritable,Text,DoubleWritable,DoubleWritable>, WorkerAggregatorUsage

public class PageRankComputation
extends BasicComputation<Text,DoubleWritable,Text,DoubleWritable>

Field Summary

Fields

Modifier and Type	Field and Description
static String	DAMPING_FACTOR
static float	DAMPING_FACTOR_DEFAULT_VALUE
static String	MAX_EPSILON

Constructor Summary

Constructors

Constructor and Description
PageRankComputation()

Method Summary

Methods

Modifier and Type	Method and Description
void	compute(Vertex<Text,DoubleWritable,Text> vertex, Iterable<DoubleWritable> messages)

Methods inherited from class org.apache.giraph.graph.AbstractComputation

addEdgeRequest, addVertexRequest, addVertexRequest, aggregate, getAggregatedValue, getContext, getSuperstep, getTotalNumEdges, getTotalNumVertices, getWorkerContext, initialize, postSuperstep, preSuperstep, removeEdgesRequest, removeVertexRequest, sendMessage, sendMessageToAllEdges, sendMessageToMultipleEdges

Methods inherited from class org.apache.giraph.conf.DefaultImmutableClassesGiraphConfigurable

getConf, setConf

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.giraph.conf.ImmutableClassesGiraphConfigurable

getConf, setConf

Field Detail

MAX_EPSILON

public static final String MAX_EPSILON

See Also:

Constant Field Values

DAMPING_FACTOR

public static final String DAMPING_FACTOR

See Also:

Constant Field Values

DAMPING_FACTOR_DEFAULT_VALUE

public static final float DAMPING_FACTOR_DEFAULT_VALUE

See Also:

Constant Field Values

Constructor Detail

PageRankComputation

public PageRankComputation()

Method Detail

compute

public void compute(Vertex<Text,DoubleWritable,Text> vertex,
           Iterable<DoubleWritable> messages)
             throws IOException

Specified by:

compute in interface Computation<Text,DoubleWritable,Text,DoubleWritable,DoubleWritable>

Specified by:

compute in class AbstractComputation<Text,DoubleWritable,Text,DoubleWritable,DoubleWritable>

Throws:

IOException