java.lang.Object
- com.alibaba.graphscope.context.VertexDataContext<IFragment<Long,Long,Long,Double>,Double>
- - com.alibaba.graphscope.example.pagerank.PageRankContext

All Implemented Interfaces:: ContextBase, ParallelContextBase<Long,Long,Long,Double>

public class PageRankContext
extends VertexDataContext<IFragment<Long,Long,Long,Double>,Double>
implements ParallelContextBase<Long,Long,Long,Double>

Field Summary

Fields
Modifier and Type	Field	Description
`double`	`alpha`
`MessageInBuffer.Factory`	`bufferFactory`
`int`	`chunkSize`
`double`	`danglingSum`
`int`	`danglingVNum`
`IntArrayWrapper`	`degree`
`ExecutorService`	`executor`
`int`	`maxIteration`
`DoubleArrayWrapper`	`nextResult`
`DoubleArrayWrapper`	`pagerank`
`double`	`sumDoubleTime`
`int`	`superStep`
`double`	`swapTime`
`int`	`thread_num`

Constructor Summary

Constructors
Constructor Description

PageRankContext()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`Init(IFragment<Long,Long,Long,Double> frag, ParallelMessageManager javaParallelMessageManager, com.alibaba.fastjson.JSONObject jsonObject)`	Called by grape framework, before any PEval.
`void`	`Output(IFragment<Long,Long,Long,Double> frag)`	Output will be executed when the computations finalizes.
`int`	`thread_num()`

Methods inherited from class com.alibaba.graphscope.context.VertexDataContext
createFFIContext, data, getDataClass

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - alpha
```
public double alpha
```
  - maxIteration
```
public int maxIteration
```
  - superStep
```
public int superStep
```
  - danglingSum
```
public double danglingSum
```
  - pagerank
```
public DoubleArrayWrapper pagerank
```
  - nextResult
```
public DoubleArrayWrapper nextResult
```
  - degree
```
public IntArrayWrapper degree
```
  - thread_num
```
public int thread_num
```
  - executor
```
public ExecutorService executor
```
  - bufferFactory
```
public MessageInBuffer.Factory bufferFactory
```
  - chunkSize
```
public int chunkSize
```
  - sumDoubleTime
```
public double sumDoubleTime
```
  - swapTime
```
public double swapTime
```
  - danglingVNum
```
public int danglingVNum
```
- Constructor Detail
  - PageRankContext
```
public PageRankContext()
```
- Method Detail
  - Init
```
public void Init(IFragment<Long,Long,Long,Double> frag,
                 ParallelMessageManager javaParallelMessageManager,
                 com.alibaba.fastjson.JSONObject jsonObject)
```
    Description copied from interface: ParallelContextBase
    
    Called by grape framework, before any PEval. You can initiating data structures need during super steps here.
    
    Specified by:
    
    Init in interface ParallelContextBase<Long,Long,Long,Double>
    
    Parameters:
    
    frag - The graph fragment providing accesses to graph data.
    
    javaParallelMessageManager - The message manger which manages messages between fragments.
    
    jsonObject - String args from cmdline.
    
    See Also:
    
    IFragment, ParallelMessageManager, JSONObject
  - Output
```
public void Output(IFragment<Long,Long,Long,Double> frag)
```
    Description copied from interface: ParallelContextBase
    
    Output will be executed when the computations finalizes. Data maintained in this context shall be outputted here.
    
    Specified by:
    
    Output in interface ParallelContextBase<Long,Long,Long,Double>
    
    Parameters:
    
    frag - The graph fragment contains the graph info.
    
    See Also:
    
    IFragment
  - thread_num
```
public int thread_num()
```

Class PageRankContext

Field Summary

Constructor Summary

Method Summary

Methods inherited from class com.alibaba.graphscope.context.VertexDataContext

Methods inherited from class java.lang.Object

Field Detail

alpha

maxIteration

superStep

danglingSum

pagerank

nextResult

degree

thread_num

executor

bufferFactory

chunkSize

sumDoubleTime

swapTime

danglingVNum

Constructor Detail

PageRankContext

Method Detail

Init

Output

thread_num