TraverseContext (Grape Java SDK 0.27.0 API)

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

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

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

Field Summary

Fields
Modifier and Type Field Description

int maxIteration

GSVertexArray<Long> vertexArray

Constructor Summary

Constructors
Constructor Description

TraverseContext()

Method Summary

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

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
  - vertexArray
```
public GSVertexArray<Long> vertexArray
```
  - maxIteration
```
public int maxIteration
```
- Constructor Detail
  - TraverseContext
```
public TraverseContext()
```
- Method Detail
  - Init
```
public void Init(IFragment<Long,Long,Double,Long> frag,
                 ParallelMessageManager messageManager,
                 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,Double,Long>
    
    Parameters:
    
    frag - The graph fragment providing accesses to graph data.
    
    messageManager - 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,Double,Long> 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,Double,Long>
    
    Parameters:
    
    frag - The graph fragment contains the graph info.
    
    See Also:
    
    IFragment