org.apache.mahout.classifier.df.mapreduce.inmem

Class InMemInputFormat.InMemInputSplit

java.lang.Object

org.apache.hadoop.mapreduce.InputSplit

org.apache.mahout.classifier.df.mapreduce.inmem.InMemInputFormat.InMemInputSplit

All Implemented Interfaces:

org.apache.hadoop.io.Writable

Enclosing class:

InMemInputFormat

public static class InMemInputFormat.InMemInputSplit
extends org.apache.hadoop.mapreduce.InputSplit
implements org.apache.hadoop.io.Writable

Custom InputSplit that indicates how many trees are built by each mapper

Constructor Summary

Constructors

Constructor and Description
InMemInputSplit()
InMemInputSplit(int firstId, int nbTrees, Long seed)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
int	getFirstId()
long	getLength()
String[]	getLocations()
int	getNbTrees()
Long	getSeed()
int	hashCode()
static InMemInputFormat.InMemInputSplit	read(DataInput in)
void	readFields(DataInput in)
String	toString()
void	write(DataOutput out)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

InMemInputSplit

public InMemInputSplit()

InMemInputSplit

public InMemInputSplit(int firstId,
                       int nbTrees,
                       Long seed)

Method Detail

getFirstId

public int getFirstId()

Returns:

the Id of the first tree of this split

getNbTrees

public int getNbTrees()

Returns:

the number of trees

getSeed

public Long getSeed()

Returns:

the random seed or null if no seed is available

getLength

public long getLength()
               throws IOException

Specified by:

getLength in class org.apache.hadoop.mapreduce.InputSplit

Throws:

IOException

getLocations

public String[] getLocations()
                      throws IOException

Specified by:

getLocations in class org.apache.hadoop.mapreduce.InputSplit

Throws:

IOException

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

readFields

public void readFields(DataInput in)
                throws IOException

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Throws:

IOException

write

public void write(DataOutput out)
           throws IOException

Specified by:

write in interface org.apache.hadoop.io.Writable

Throws:

IOException

read

public static InMemInputFormat.InMemInputSplit read(DataInput in)
                                             throws IOException

Throws:

IOException