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>

Type Parameters:

I - Vertex index value

V - Vertex value

E - Edge value

All Implemented Interfaces:

org.apache.giraph.conf.GiraphConfigurationSettable<I,V,E>, org.apache.giraph.conf.ImmutableClassesGiraphConfigurable<I,V,E>

Direct Known Subclasses:

PageRank.SimplePageRankVertexOutputFormat, SSSP.SimpleSuperstepVertexOutputFormat
```
public abstract class TextVertexOutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>
extends org.apache.giraph.io.VertexOutputFormat<I,V,E>
```
Abstract class that users should subclass to use their own text based vertex output format.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`protected class`	`TextVertexOutputFormat.TextVertexWriter`	Abstract class to be implemented by the user based on their specific vertex output.
`protected class`	`TextVertexOutputFormat.TextVertexWriterToEachLine`	Abstract class to be implemented by the user to write a line for each vertex.

Field Summary

Fields
Modifier and Type Field Description

protected GiraphTextOutputFormat textOutputFormat
Giraph made this file protected here, so we need to provide this

Constructor Summary

Constructors
Constructor Description

TextVertexOutputFormat()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`checkOutputSpecs(org.apache.hadoop.mapreduce.JobContext context)`
`abstract TextVertexOutputFormat.TextVertexWriter`	`createVertexWriter(org.apache.hadoop.mapreduce.TaskAttemptContext context)`	The factory method which produces the `TextVertexOutputFormat.TextVertexWriter` used by this output format.
`org.apache.hadoop.mapreduce.OutputCommitter`	`getOutputCommitter(org.apache.hadoop.mapreduce.TaskAttemptContext context)`

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
  - textOutputFormat
```
protected GiraphTextOutputFormat textOutputFormat
```
    Giraph made this file protected here, so we need to provide this
- Constructor Detail
  - TextVertexOutputFormat
```
public TextVertexOutputFormat()
```
- Method Detail
  - checkOutputSpecs
```
public void checkOutputSpecs(org.apache.hadoop.mapreduce.JobContext context)
                      throws IOException,
                             InterruptedException
```
    Specified by:
    
    checkOutputSpecs in class org.apache.giraph.io.OutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>
    
    Throws:
    
    IOException
    
    InterruptedException
  - getOutputCommitter
```
public org.apache.hadoop.mapreduce.OutputCommitter getOutputCommitter(org.apache.hadoop.mapreduce.TaskAttemptContext context)
                                                               throws IOException,
                                                                      InterruptedException
```
    Specified by:
    
    getOutputCommitter in class org.apache.giraph.io.OutputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>
    
    Throws:
    
    IOException
    
    InterruptedException
  - createVertexWriter
```
public abstract TextVertexOutputFormat.TextVertexWriter createVertexWriter(org.apache.hadoop.mapreduce.TaskAttemptContext context)
                                                                    throws IOException,
                                                                           InterruptedException
```
    The factory method which produces the TextVertexOutputFormat.TextVertexWriter used by this output format.
    
    Specified by:
    
    createVertexWriter in class org.apache.giraph.io.VertexOutputFormat<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
    
    Throws:
    
    IOException
    
    InterruptedException

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

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

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

Methods inherited from class org.apache.giraph.conf.DefaultImmutableClassesGiraphConfigurable

Methods inherited from class java.lang.Object

Field Detail

textOutputFormat

Constructor Detail

TextVertexOutputFormat

Method Detail

checkOutputSpecs

getOutputCommitter

createVertexWriter

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