java.lang.Object
- org.apache.giraph.conf.DefaultImmutableClassesGiraphConfigurable<I,V,E>
- - org.apache.giraph.worker.WorkerAggregatorDelegator<org.apache.hadoop.io.WritableComparable,org.apache.hadoop.io.Writable,org.apache.hadoop.io.Writable>
  - - org.apache.giraph.worker.WorkerContext
    - - com.alibaba.graphscope.example.giraph.PageRank.SimplePageRankWorkerContext

All Implemented Interfaces:

org.apache.giraph.aggregators.AggregatorUsage, org.apache.giraph.conf.GiraphConfigurationSettable<org.apache.hadoop.io.WritableComparable,org.apache.hadoop.io.Writable,org.apache.hadoop.io.Writable>, org.apache.giraph.conf.ImmutableClassesGiraphConfigurable<org.apache.hadoop.io.WritableComparable,org.apache.hadoop.io.Writable,org.apache.hadoop.io.Writable>, org.apache.giraph.worker.WorkerAggregatorUsage, org.apache.giraph.worker.WorkerBroadcastUsage, org.apache.giraph.worker.WorkerGlobalCommUsage, org.apache.giraph.worker.WorkerIndexUsage<org.apache.hadoop.io.WritableComparable>, org.apache.giraph.worker.WorkerReduceUsage, org.apache.hadoop.io.Writable

Enclosing class:

PageRank
```
public static class PageRank.SimplePageRankWorkerContext
extends WorkerContext
```
Worker context used with PageRank.

Constructor Summary

Constructors
Constructor Description

SimplePageRankWorkerContext()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static double`	`getFinalMax()`
`static double`	`getFinalMin()`
`static long`	`getFinalSum()`
`void`	`postApplication()`	Finalize the WorkerContext.
`void`	`postSuperstep()`	Execute user code.
`void`	`preApplication()`	Initialize the WorkerContext.
`void`	`preSuperstep()`	Execute user code.

Methods inherited from class org.apache.giraph.worker.WorkerContext
aggregate, getAggregatedValue, getAndClearMessagesFromOtherWorkers, getContext, getMyWorkerIndex, getSuperstep, getTotalNumEdges, getTotalNumVertices, getWorkerCount, getWorkerForVertex, incStep, logToCommandLine, readFields, reduce, reduceMerge, sendMessageToWorker, setAggregatorManager, setCurStep, setFragment, write

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

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

- Constructor Detail
  - SimplePageRankWorkerContext
```
public SimplePageRankWorkerContext()
```
- Method Detail
  - getFinalMax
```
public static double getFinalMax()
```
  - getFinalMin
```
public static double getFinalMin()
```
  - getFinalSum
```
public static long getFinalSum()
```
  - preApplication
```
public void preApplication()
                    throws InstantiationException,
                           IllegalAccessException
```
    Description copied from class: WorkerContext
    
    Initialize the WorkerContext. This method is executed once on each Worker before the first superstep starts.
    
    Specified by:
    
    preApplication in class WorkerContext
    
    Throws:
    
    InstantiationException - Expected instantiation in this method.
    
    IllegalAccessException - Thrown for getting the class
  - postApplication
```
public void postApplication()
```
    Description copied from class: WorkerContext
    
    Finalize the WorkerContext. This method is executed once on each Worker after the last superstep ends.
    
    Specified by:
    
    postApplication in class WorkerContext
  - preSuperstep
```
public void preSuperstep()
```
    Description copied from class: WorkerContext
    
    Execute user code. This method is executed once on each Worker before each superstep starts.
    
    Specified by:
    
    preSuperstep in class WorkerContext
  - postSuperstep
```
public void postSuperstep()
```
    Description copied from class: WorkerContext
    
    Execute user code. This method is executed once on each Worker after each superstep ends.
    
    Specified by:
    
    postSuperstep in class WorkerContext

Class PageRank.SimplePageRankWorkerContext

Constructor Summary

Method Summary

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

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

Constructor Detail

SimplePageRankWorkerContext

Method Detail

getFinalMax

getFinalMin

getFinalSum

preApplication

postApplication

preSuperstep

postSuperstep