org.apache.giraph.examples

Class SimpleSuperstepVertex.SimpleSuperstepVertexReader

java.lang.Object

org.apache.giraph.conf.DefaultImmutableClassesGiraphConfigurable<I,V,E,org.apache.hadoop.io.Writable>

org.apache.giraph.io.VertexReader<I,V,E>

org.apache.giraph.examples.GeneratedVertexReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.FloatWritable>

org.apache.giraph.examples.SimpleSuperstepVertex.SimpleSuperstepVertexReader

All Implemented Interfaces:

ImmutableClassesGiraphConfigurable<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.FloatWritable,org.apache.hadoop.io.Writable>

Enclosing class:

SimpleSuperstepVertex

public static class SimpleSuperstepVertex.SimpleSuperstepVertexReader
extends GeneratedVertexReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.FloatWritable>

Simple VertexReader that supports SimpleSuperstepVertex

Field Summary

Fields inherited from class org.apache.giraph.examples.GeneratedVertexReader

DEAFULT_REVERSE_ID_ORDER, DEFAULT_READER_VERTICES, inputSplit, READER_VERTICES, recordsRead, REVERSE_ID_ORDER, reverseIdOrder, totalRecords

Constructor Summary

Constructors

Constructor and Description
SimpleSuperstepVertex.SimpleSuperstepVertexReader()

Method Summary

Methods

Modifier and Type	Method and Description
Vertex<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.FloatWritable,org.apache.hadoop.io.Writable>	getCurrentVertex() Get the current vertex.
boolean	nextVertex()

Methods inherited from class org.apache.giraph.examples.GeneratedVertexReader

close, getProgress, initialize

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

SimpleSuperstepVertex.SimpleSuperstepVertexReader

public SimpleSuperstepVertex.SimpleSuperstepVertexReader()

Method Detail

nextVertex

public boolean nextVertex()
                   throws IOException,
                          InterruptedException

Specified by:

nextVertex in class VertexReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.FloatWritable>

Returns:

false iff there are no more vertices

Throws:

IOException

InterruptedException

getCurrentVertex

public Vertex<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.FloatWritable,org.apache.hadoop.io.Writable> getCurrentVertex()
                                                                                                                                                             throws IOException,
                                                                                                                                                                    InterruptedException

Description copied from class: VertexReader

Get the current vertex.

Specified by:

getCurrentVertex in class VertexReader<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.FloatWritable>

Returns:

the current vertex which has been read. nextVertex() should be called first.

Throws:

IOException

InterruptedException