org.apache.hama.graph

Class VertexInputReader<KEY_IN extends org.apache.hadoop.io.Writable,VALUE_IN extends org.apache.hadoop.io.Writable,VERTEX_ID extends org.apache.hadoop.io.Writable,EDGE_VALUE extends org.apache.hadoop.io.Writable,VERTEX_VALUE extends org.apache.hadoop.io.Writable>

java.lang.Object

org.apache.hama.graph.VertexInputReader<KEY_IN,VALUE_IN,VERTEX_ID,EDGE_VALUE,VERTEX_VALUE>

public abstract class VertexInputReader<KEY_IN extends org.apache.hadoop.io.Writable,VALUE_IN extends org.apache.hadoop.io.Writable,VERTEX_ID extends org.apache.hadoop.io.Writable,EDGE_VALUE extends org.apache.hadoop.io.Writable,VERTEX_VALUE extends org.apache.hadoop.io.Writable>
extends Object

A reader to read Hama's input files and parses a vertex out of it.

Constructor Summary

Constructors

Constructor and Description
VertexInputReader()

Method Summary

Methods

Modifier and Type	Method and Description
abstract boolean	parseVertex(KEY_IN key, VALUE_IN value, Vertex<VERTEX_ID,EDGE_VALUE,VERTEX_VALUE> vertex) Parses a given key and value into the given vertex.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VertexInputReader

public VertexInputReader()

Method Detail

parseVertex

public abstract boolean parseVertex(KEY_IN key,
                  VALUE_IN value,
                  Vertex<VERTEX_ID,EDGE_VALUE,VERTEX_VALUE> vertex)

Parses a given key and value into the given vertex. If returned true, the given vertex is considered finished and a new instance will be given in the next call.