org.objectweb.carol.cmi

Class ClusterId

java.lang.Object

org.objectweb.carol.cmi.ClusterId

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Comparable

public class ClusterId
extends java.lang.Object
implements java.io.Externalizable, java.lang.Comparable

A universally unique identifier for a cluster

Author:

Simon Nieuviarts

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ClusterId() Create a new identifier
ClusterId(byte[] id) Create a new identifier from an array of byte

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(java.lang.Object o)
boolean	equals(java.lang.Object o) Compare two identifier
byte[]	getBytes() get the identifier in array of bytes type
int	hashCode() get the hascode
static void	main(java.lang.String[] args) Useful for tests only.
boolean	match(byte[] ar) Compare two identifiers
static ClusterId	read(java.io.DataInput in) Read an identifier from an input stream (java.io.DataInput)
void	readExternal(java.io.ObjectInput in) Read an identifier from an input stream (java.io.ObjectInput)
java.lang.String	toString() Readable format.
void	write(java.io.DataOutput out) Write an identifier on the output stream (java.io.DataOutput)
void	writeExternal(java.io.ObjectOutput out) Write an identifier on the output stream (java.io.ObjectOutput)

Methods inherited from class java.lang.Object

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

Constructor Detail

ClusterId

public ClusterId()

Create a new identifier

ClusterId

public ClusterId(byte[] id)

Create a new identifier from an array of byte

Parameters:

id - array of byte

Method Detail

hashCode

public int hashCode()

get the hascode

Overrides:

hashCode in class java.lang.Object

Returns:

hashcode

match

public boolean match(byte[] ar)

Compare two identifiers

Parameters:

ar - array of bytes to compare with the identifier

Returns:

true is equals, else false

equals

public boolean equals(java.lang.Object o)

Compare two identifier

Overrides:

equals in class java.lang.Object

Parameters:

o - object to compare

Returns:

true is equals, else false

getBytes

public byte[] getBytes()

get the identifier in array of bytes type

Returns:

array of bytes

compareTo

public int compareTo(java.lang.Object o)

Specified by:

compareTo in interface java.lang.Comparable

See Also:

Comparable.compareTo(java.lang.Object)

toString

public java.lang.String toString()

Readable format.

Overrides:

toString in class java.lang.Object

Returns:

cluster id in a human readable format

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Read an identifier from an input stream (java.io.ObjectInput)

Specified by:

readExternal in interface java.io.Externalizable

Parameters:

in - the input stream

Throws:

java.io.IOException - if exception is encountered

java.lang.ClassNotFoundException - if exception is encountered

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Write an identifier on the output stream (java.io.ObjectOutput)

Specified by:

writeExternal in interface java.io.Externalizable

Parameters:

out - the output stream

Throws:

java.io.IOException - if exception is encountered

read

public static ClusterId read(java.io.DataInput in)
                      throws java.io.IOException

Read an identifier from an input stream (java.io.DataInput)

Parameters:

in - the input stream

Throws:

java.io.IOException - if exception is encountered

write

public void write(java.io.DataOutput out)
           throws java.io.IOException

Write an identifier on the output stream (java.io.DataOutput)

Parameters:

out - the output stream

Throws:

java.io.IOException - if exception is encountered

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Useful for tests only.

Parameters:

args - arguments list

Throws:

java.lang.Exception - if an error occurs