Package org.apache.hadoop.io

Class TwoDArrayWritable

java.lang.Object

org.apache.hadoop.io.TwoDArrayWritable

All Implemented Interfaces:

Writable

@Public
@Stable
public class TwoDArrayWritable
extends Object
implements Writable

A Writable for 2D arrays containing a matrix of instances of a class.

Constructor Summary

Constructors

Constructor	Description
TwoDArrayWritable(Class valueClass)
TwoDArrayWritable(Class valueClass, Writable[][] values)

Method Summary

Modifier and Type	Method	Description
Writable[][]	get()
void	readFields(DataInput in)	Deserialize the fields of this object from in.
void	set(Writable[][] values)
Object	toArray()
void	write(DataOutput out)	Serialize the fields of this object to out.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TwoDArrayWritable

public TwoDArrayWritable(Class valueClass)

TwoDArrayWritable

public TwoDArrayWritable(Class valueClass,
 Writable[][] values)

Method Details

toArray

public Object toArray()

set

public void set(Writable[][] values)

get

public Writable[][] get()

readFields

public void readFields(DataInput in)
                throws IOException

Description copied from interface: Writable

Deserialize the fields of this object from in.

For efficiency, implementations should attempt to re-use storage in the existing object where possible.

Specified by:

readFields in interface Writable

Parameters:

in - DataInput to deseriablize this object from.

Throws:

IOException - any other problem for readFields.

write

public void write(DataOutput out)
           throws IOException

Description copied from interface: Writable

Serialize the fields of this object to out.

Specified by:

write in interface Writable

Parameters:

out - DataOuput to serialize this object into.

Throws:

IOException - any other problem for write.