org.apache.giraph.io.formats

Class TextDoubleDoubleAdjacencyListVertexInputFormat

java.lang.Object

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

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

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

org.apache.giraph.io.formats.TextVertexInputFormat<I,V,E>

org.apache.giraph.io.formats.AdjacencyListTextVertexInputFormat<org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>

org.apache.giraph.io.formats.TextDoubleDoubleAdjacencyListVertexInputFormat

All Implemented Interfaces:

GiraphConfigurationSettable<org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>, ImmutableClassesGiraphConfigurable<org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>

public class TextDoubleDoubleAdjacencyListVertexInputFormat
extends AdjacencyListTextVertexInputFormat<org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>

Class to read graphs stored as adjacency lists with ids represented by Strings and values as doubles. This is a good inputformat for reading graphs where the id types do not matter and can be stashed in a String.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	TextDoubleDoubleAdjacencyListVertexInputFormat.TextDoubleDoubleAdjacencyListVertexReader Vertex reader used with TextDoubleDoubleAdjacencyListVertexInputFormat

Nested classes/interfaces inherited from class org.apache.giraph.io.formats.AdjacencyListTextVertexInputFormat

AdjacencyListTextVertexInputFormat.AdjacencyListTextVertexReader, AdjacencyListTextVertexInputFormat.LineSanitizer

Nested classes/interfaces inherited from class org.apache.giraph.io.formats.TextVertexInputFormat

TextVertexInputFormat.TextVertexReader, TextVertexInputFormat.TextVertexReaderFromEachLine, TextVertexInputFormat.TextVertexReaderFromEachLineProcessed<T>, TextVertexInputFormat.TextVertexReaderFromEachLineProcessedHandlingExceptions<T,X extends Throwable>

Field Summary

Fields inherited from class org.apache.giraph.io.formats.AdjacencyListTextVertexInputFormat

LINE_TOKENIZE_VALUE, LINE_TOKENIZE_VALUE_DEFAULT

Fields inherited from class org.apache.giraph.io.formats.TextVertexInputFormat

textInputFormat

Constructor Summary

Constructors

Constructor and Description
TextDoubleDoubleAdjacencyListVertexInputFormat()

Method Summary

Modifier and Type	Method and Description
AdjacencyListTextVertexInputFormat.AdjacencyListTextVertexReader	createVertexReader(org.apache.hadoop.mapreduce.InputSplit split, org.apache.hadoop.mapreduce.TaskAttemptContext context) The factory method which produces the TextVertexInputFormat.TextVertexReader used by this input format.

Methods inherited from class org.apache.giraph.io.formats.TextVertexInputFormat

checkInputSpecs, getSplits

Methods inherited from class org.apache.giraph.io.GiraphInputFormat

readInputSplit, writeInputSplit

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

TextDoubleDoubleAdjacencyListVertexInputFormat

public TextDoubleDoubleAdjacencyListVertexInputFormat()

Method Detail

createVertexReader

public AdjacencyListTextVertexInputFormat.AdjacencyListTextVertexReader createVertexReader(org.apache.hadoop.mapreduce.InputSplit split,
                                                                                           org.apache.hadoop.mapreduce.TaskAttemptContext context)

Description copied from class: TextVertexInputFormat

The factory method which produces the TextVertexInputFormat.TextVertexReader used by this input format.

Specified by:

createVertexReader in class AdjacencyListTextVertexInputFormat<org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>

Parameters:

split - the split to be read

context - the information about the task

Returns:

the text vertex reader to be used