java.lang.Object
- org.apache.giraph.conf.DefaultImmutableClassesGiraphConfigurable<I,V,E>
- - org.apache.giraph.worker.WorkerAggregatorDelegator<OID_T,VDATA_T,EDATA_T>
  - - org.apache.giraph.graph.AbstractComputation<I,V,E,M,M>
    - - org.apache.giraph.graph.BasicComputation<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>
      - com.alibaba.graphscope.example.giraph.PageRank

All Implemented Interfaces:

org.apache.giraph.aggregators.AggregatorUsage, org.apache.giraph.conf.GiraphConfigurationSettable<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>, org.apache.giraph.conf.ImmutableClassesGiraphConfigurable<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>, org.apache.giraph.conf.TypesHolder<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>, org.apache.giraph.graph.Computation<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>, org.apache.giraph.worker.WorkerAggregatorUsage, org.apache.giraph.worker.WorkerBroadcastUsage, org.apache.giraph.worker.WorkerGlobalCommUsage, org.apache.giraph.worker.WorkerIndexUsage<org.apache.hadoop.io.LongWritable>, org.apache.giraph.worker.WorkerReduceUsage
```
public class PageRank
extends org.apache.giraph.graph.BasicComputation<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>
```
Demonstrates the basic Pregel PageRank implementation.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`PageRank.SimplePageRankMasterCompute`	Master compute associated with `PageRank`.
`static class`	`PageRank.SimplePageRankVertexOutputFormat`	Simple VertexOutputFormat that supports `PageRank`
`static class`	`PageRank.SimplePageRankWorkerContext`	Worker context used with `PageRank`.

Field Summary

Fields
Modifier and Type Field Description

static int MAX_SUPERSTEPS
Number of supersteps for this test

Constructor Summary

Constructors
Constructor Description

PageRank()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`compute(org.apache.giraph.graph.Vertex<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable> vertex, Iterable<org.apache.hadoop.io.DoubleWritable> messages)`

Methods inherited from class org.apache.giraph.graph.AbstractComputation
addEdgeRequest, addVertexRequest, addVertexRequest, getContext, getMyWorkerIndex, getSuperstep, getTotalNumEdges, getTotalNumVertices, getWorkerContext, getWorkerCount, getWorkerForVertex, incStep, initialize, postSuperstep, preSuperstep, removeEdgesRequest, removeVertexRequest, sendMessage, sendMessageToAllEdges, sendMessageToMultipleEdges, setFragment, setGiraphMessageManager, setWorkerContext

Methods inherited from class org.apache.giraph.worker.WorkerAggregatorDelegator
aggregate, getAggregatedValue, getBroadcast, reduce, reduceMerge, setAggregatorManager

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.aggregators.AggregatorUsage
getAggregatedValue

Methods inherited from interface org.apache.giraph.conf.GiraphConfigurationSettable
setConf

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

Methods inherited from interface org.apache.giraph.worker.WorkerAggregatorUsage
aggregate

Methods inherited from interface org.apache.giraph.worker.WorkerBroadcastUsage
getBroadcast

Methods inherited from interface org.apache.giraph.worker.WorkerReduceUsage
reduce, reduceMerge

Field Detail
- MAX_SUPERSTEPS
```
public static final int MAX_SUPERSTEPS
```
  Number of supersteps for this test
  
  See Also:
  
  Constant Field Values

Constructor Detail
- PageRank
```
public PageRank()
```

Method Detail

compute

public void compute(org.apache.giraph.graph.Vertex<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable> vertex,
                    Iterable<org.apache.hadoop.io.DoubleWritable> messages)
             throws IOException

Throws:: IOException

Class PageRank

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

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

Methods inherited from class org.apache.giraph.worker.WorkerAggregatorDelegator

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

Methods inherited from class java.lang.Object

Methods inherited from interface org.apache.giraph.aggregators.AggregatorUsage

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

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

Methods inherited from interface org.apache.giraph.worker.WorkerAggregatorUsage

Methods inherited from interface org.apache.giraph.worker.WorkerBroadcastUsage

Methods inherited from interface org.apache.giraph.worker.WorkerReduceUsage

Field Detail

MAX_SUPERSTEPS

Constructor Detail

PageRank

Method Detail

compute