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>

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:

DatagenVertexInputFormat, LiveJournalVertexInputFormat, P2PVertexInputFormat, SampleTextVertexInputFormat
```
public abstract class TextVertexInputFormat<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.VertexInputFormat<I,V,E>
```
Abstract class that users should subclass to use their own text based vertex input format.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`protected class`	`TextVertexInputFormat.TextVertexReader`	Abstract class to be implemented by the user based on their specific vertex input.
`protected class`	`TextVertexInputFormat.TextVertexReaderFromEachLine`	Abstract class to be implemented by the user to read a vertex from each text line.
`protected class`	`TextVertexInputFormat.TextVertexReaderFromEachLineProcessed<T>`	Abstract class to be implemented by the user to read a vertex from each text line after preprocessing it.
`protected class`	`TextVertexInputFormat.TextVertexReaderFromEachLineProcessedHandlingExceptions<T,X extends Throwable>`	Abstract class to be implemented by the user to read a vertex from each text line after preprocessing it with exception handling.

Constructor Summary

Constructors
Constructor Description

TextVertexInputFormat()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`checkInputSpecs(org.apache.hadoop.conf.Configuration conf)`
`abstract TextVertexInputFormat.TextVertexReader`	`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.
`List<org.apache.hadoop.mapreduce.InputSplit>`	`getSplits(org.apache.hadoop.mapreduce.JobContext context, int minSplitCountHint)`

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
  - TextVertexInputFormat
```
public TextVertexInputFormat()
```
- Method Detail
  - checkInputSpecs
```
public void checkInputSpecs(org.apache.hadoop.conf.Configuration conf)
```
    Specified by:
    
    checkInputSpecs in class org.apache.giraph.io.GiraphInputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>
  - getSplits
```
public List<org.apache.hadoop.mapreduce.InputSplit> getSplits(org.apache.hadoop.mapreduce.JobContext context,
                                                              int minSplitCountHint)
                                                       throws IOException,
                                                              InterruptedException
```
    Specified by:
    
    getSplits in class org.apache.giraph.io.GiraphInputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>
    
    Throws:
    
    IOException
    
    InterruptedException
  - createVertexReader
```
public abstract TextVertexInputFormat.TextVertexReader createVertexReader(org.apache.hadoop.mapreduce.InputSplit split,
                                                                          org.apache.hadoop.mapreduce.TaskAttemptContext context)
                                                                   throws IOException
```
    The factory method which produces the TextVertexInputFormat.TextVertexReader used by this input format.
    
    Specified by:
    
    createVertexReader in class org.apache.giraph.io.VertexInputFormat<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable>
    
    Parameters:
    
    split - the split to be read
    
    context - the information about the task
    
    Returns:
    
    the text vertex reader to be used
    
    Throws:
    
    IOException

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

Nested Class Summary

Constructor Summary

Method Summary

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

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

Methods inherited from class java.lang.Object

Constructor Detail

TextVertexInputFormat

Method Detail

checkInputSpecs

getSplits

createVertexReader

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