SSSP.SSSPWorkerContext (Grape Java SDK 0.27.0 API)

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.SSSP.SSSPWorkerContext

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:

SSSP
```
public static class SSSP.SSSPWorkerContext
extends WorkerContext
```

Constructor Summary

Constructors
Constructor Description

SSSPWorkerContext()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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
  - SSSPWorkerContext
```
public SSSPWorkerContext()
```
- Method Detail
  - preApplication
```
public void preApplication()
                    throws InstantiationException,
                           IllegalAccessException
```
    Initialize the WorkerContext. This method is executed once on each Worker before the first superstep starts.
    
    Specified by:
    
    preApplication in class WorkerContext
    
    Throws:
    
    IllegalAccessException - Thrown for getting the class
    
    InstantiationException - Expected instantiation in this method.
  - postApplication
```
public void postApplication()
```
    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()
```
    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()
```
    Execute user code. This method is executed once on each Worker after each superstep ends.
    
    Specified by:
    
    postSuperstep in class WorkerContext