org.apache.hama.graph

Class VertexInputReader<KEYIN extends org.apache.hadoop.io.Writable,VALUEIN extends org.apache.hadoop.io.Writable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable,M extends org.apache.hadoop.io.Writable>

java.lang.Object

org.apache.hama.graph.VertexInputReader<KEYIN,VALUEIN,V,E,M>

public abstract class VertexInputReader<KEYIN extends org.apache.hadoop.io.Writable,VALUEIN extends org.apache.hadoop.io.Writable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable,M 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(KEYIN key, VALUEIN value, Vertex<V,E,M> 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(KEYIN key,
                  VALUEIN value,
                  Vertex<V,E,M> vertex)
                             throws Exception

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.

Throws:

Exception