com.aoindustries.security

Class Identifier

java.lang.Object

com.aoindustries.security.Identifier

All Implemented Interfaces:

Serializable, Comparable<Identifier>

public class Identifier
extends Object
implements Serializable, Comparable<Identifier>

A 128-bit random identifier internally stored as two long values.

Author:

AO Industries, Inc.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Identifier() Creates a new, random Identifier using the default SecureRandom instance.
Identifier(long hi, long lo)
Identifier(Random random) Creates a new, random Identifier using the provided Random source.
Identifier(String encoded)

Method Summary

Modifier and Type	Method and Description
int	compareTo(Identifier other) Unsigned ordering.
boolean	equals(Identifier other)
boolean	equals(Object O)
long	getHi()
long	getLo()
int	hashCode()
static void	main(String[] args)
String	toString() The external representation is a string of characters encoded in base 57, with the first 11 characters for "hi" and the last 11 characters for "lo".
static Identifier	valueOf(String encoded)

Methods inherited from class java.lang.Object

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

Constructor Detail

Identifier

public Identifier()

Creates a new, random Identifier using the default SecureRandom instance.

Identifier

public Identifier(Random random)

Creates a new, random Identifier using the provided Random source.

Identifier

public Identifier(long hi,
                  long lo)

Identifier

public Identifier(String encoded)
           throws IllegalArgumentException

Throws:

IllegalArgumentException

See Also:

toString()

Method Detail

valueOf

public static Identifier valueOf(String encoded)
                          throws IllegalArgumentException

Throws:

IllegalArgumentException

See Also:

toString()

equals

public boolean equals(Object O)

Overrides:

equals in class Object

equals

public boolean equals(Identifier other)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

The external representation is a string of characters encoded in base 57, with the first 11 characters for "hi" and the last 11 characters for "lo".

Overrides:

toString in class Object

compareTo

public int compareTo(Identifier other)

Unsigned ordering.

Specified by:

compareTo in interface Comparable<Identifier>

getHi

public long getHi()

getLo

public long getLo()

main

public static void main(String[] args)