GiraphVertexIdManagerImpl (Grape Java SDK 0.27.0 API)

java.lang.Object
- com.alibaba.graphscope.graph.impl.GiraphVertexIdManagerImpl<OID_T,GRAPE_OID_T,GRAPE_VID_T,GRAPE_VDATA_T,GRAPE_EDATA_T>

Type Parameters:

OID_T - giraph vertex id type

GRAPE_OID_T - grape vertex oid

GRAPE_VID_T - grape vertex vid

GRAPE_VDATA_T - grape vertex data

GRAPE_EDATA_T - grape edge data

All Implemented Interfaces:

GiraphVertexIdManager<GRAPE_VID_T,OID_T>, VertexIdManager<GRAPE_VID_T,OID_T>
```
public class GiraphVertexIdManagerImpl<OID_T extends org.apache.hadoop.io.WritableComparable,GRAPE_OID_T,GRAPE_VID_T,GRAPE_VDATA_T,GRAPE_EDATA_T>
extends Object
implements GiraphVertexIdManager<GRAPE_VID_T,OID_T>
```
Default implementation for vertexId management.

Constructor Summary

Constructors
Constructor	Description
`GiraphVertexIdManagerImpl(IFragment<GRAPE_OID_T,GRAPE_VID_T,GRAPE_VDATA_T,GRAPE_EDATA_T> fragment, long vertexNum, ImmutableClassesGiraphConfiguration<OID_T,?,?> conf)`	To provide giraph users with all oids, we need to get all oids out of c++ memory, then let java read the stream.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

OID_T lid2Oid(GRAPE_VID_T lid)

GRAPE_VID_T oid2Lid(OID_T oid)
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - GiraphVertexIdManagerImpl
```
public GiraphVertexIdManagerImpl(IFragment<GRAPE_OID_T,GRAPE_VID_T,GRAPE_VDATA_T,GRAPE_EDATA_T> fragment,
                                 long vertexNum,
                                 ImmutableClassesGiraphConfiguration<OID_T,?,?> conf)
```
    To provide giraph users with all oids, we need to get all oids out of c++ memory, then let java read the stream.
    
    Parameters:
    
    fragment - fragment
    
    vertexNum - number of vertices
    
    conf - configuration to use.
- Method Detail
  - lid2Oid
```
public OID_T lid2Oid(GRAPE_VID_T lid)
```
    Specified by:
    
    lid2Oid in interface VertexIdManager<OID_T extends org.apache.hadoop.io.WritableComparable,GRAPE_OID_T>
  - oid2Lid
```
public GRAPE_VID_T oid2Lid(OID_T oid)
```
    Specified by:
    
    oid2Lid in interface VertexIdManager<OID_T extends org.apache.hadoop.io.WritableComparable,GRAPE_OID_T>