org.apache.hadoop.io
Class ByteWritable

java.lang.Object
  org.apache.hadoop.io.ByteWritable

All Implemented Interfaces:

Comparable, Writable, WritableComparable

public class ByteWritable
extends Object
implements WritableComparable

A WritableComparable for a single byte.

Nested Class Summary

static class

ByteWritable.Comparator A Comparator optimized for ByteWritable.

Constructor Summary

ByteWritable()

ByteWritable(byte value)

Method Summary

int	compareTo(Object o) Compares two ByteWritables.
boolean	equals(Object o) Returns true iff o is a ByteWritable with the same value.
byte	get() Return the value of this ByteWritable.
int	hashCode()
void	readFields(DataInput in) Deserialize the fields of this object from in.
void	set(byte value) Set the value of this ByteWritable.
String	toString()
void	write(DataOutput out) Serialize the fields of this object to out.

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteWritable

public ByteWritable()

ByteWritable

public ByteWritable(byte value)

Method Detail

set

public void set(byte value)

Set the value of this ByteWritable.

get

public byte get()

Return the value of this ByteWritable.

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

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

equals

public boolean equals(Object o)

Returns true iff o is a ByteWritable with the same value.

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(Object o)

Compares two ByteWritables.

Specified by:

compareTo in interface Comparable

toString

public String toString()

Overrides:

toString in class Object