org.apache.hadoop.io

Class ByteWritable

java.lang.Object

org.apache.hadoop.io.ByteWritable

All Implemented Interfaces:

Comparable<ByteWritable>, Writable, WritableComparable<ByteWritable>

@InterfaceAudience.Public
 @InterfaceStability.Stable
public class ByteWritable
extends Object
implements WritableComparable<ByteWritable>

A WritableComparable for a single byte.

Constructor Summary

Constructors

Constructor and Description
ByteWritable()
ByteWritable(byte value)

Method Summary

Modifier and Type	Method and Description
int	compareTo(ByteWritable 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.

Parameters:

value - value.

get

public byte get()

Return the value of this ByteWritable.

Returns:

value bytes.

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.

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(ByteWritable o)

Compares two ByteWritables.

Specified by:

compareTo in interface Comparable<ByteWritable>

toString

public String toString()

Overrides:

toString in class Object