org.apache.giraph.io.formats

Class AdjacencyListTextVertexOutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>

java.lang.Object

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

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

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

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

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

Type Parameters:

I - Vertex index value

V - Vertex value

E - Edge value

All Implemented Interfaces:

GiraphConfigurationSettable<I,V,E>, ImmutableClassesGiraphConfigurable<I,V,E>

public class AdjacencyListTextVertexOutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>
extends TextVertexOutputFormat<I,V,E>

OutputFormat to write out the graph nodes as text, value-separated (by tabs, by default). With the default delimiter, a vertex is written out as: <VertexId><tab><Vertex Value><tab> [<EdgeId><tab><EdgeValue>]+

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	AdjacencyListTextVertexOutputFormat.AdjacencyListTextVertexWriter Vertex writer associated with AdjacencyListTextVertexOutputFormat.

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

TextVertexOutputFormat.TextVertexWriter, TextVertexOutputFormat.TextVertexWriterToEachLine

Field Summary

Fields

Modifier and Type	Field and Description
static String	LINE_TOKENIZE_VALUE Split delimiter
static String	LINE_TOKENIZE_VALUE_DEFAULT Default split delimiter

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

textOutputFormat

Constructor Summary

Constructors

Constructor and Description
AdjacencyListTextVertexOutputFormat()

Method Summary

Modifier and Type	Method and Description
AdjacencyListTextVertexOutputFormat.AdjacencyListTextVertexWriter	createVertexWriter(org.apache.hadoop.mapreduce.TaskAttemptContext context) The factory method which produces the TextVertexOutputFormat.TextVertexWriter used by this output format.

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

checkOutputSpecs, getOutputCommitter

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

postWriting, preWriting

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

Field Detail

LINE_TOKENIZE_VALUE

public static final String LINE_TOKENIZE_VALUE

Split delimiter

See Also:

Constant Field Values

LINE_TOKENIZE_VALUE_DEFAULT

public static final String LINE_TOKENIZE_VALUE_DEFAULT

Default split delimiter

See Also:

Constant Field Values

Constructor Detail

AdjacencyListTextVertexOutputFormat

public AdjacencyListTextVertexOutputFormat()

Method Detail

createVertexWriter

public AdjacencyListTextVertexOutputFormat.AdjacencyListTextVertexWriter createVertexWriter(org.apache.hadoop.mapreduce.TaskAttemptContext context)

Description copied from class: TextVertexOutputFormat

The factory method which produces the TextVertexOutputFormat.TextVertexWriter used by this output format.

Specified by:

createVertexWriter in class TextVertexOutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>

Parameters:

context - the information about the task

Returns:

the text vertex writer to be used