com.yahoo.rdl

Class UUID

java.lang.Object

com.yahoo.rdl.UUID

public class UUID
extends Object

An standalone implementation of RFC 4122 UUIDs. Supports type 1 (time-based), type 3 (MD5 name based, for URL namespace), type 4 (random), and type 5 (SHA1 name based, for URL namespace) GUIDs. Immutable, like a String. See RFC 4122 (http://www.ietf.org/rfc/rfc4122.txt) for details.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	UUID.UUIDJsonDeserializer
static class	UUID.UUIDJsonSerializer

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	debug
static UUID	NAMESPACE_DNS
static UUID	NAMESPACE_OID
static UUID	NAMESPACE_URL
static UUID	NAMESPACE_X500

Method Summary

Modifier and Type	Method and Description
static byte[]	bytesFromCurrentTime()
static byte[]	bytesFromTime(long ticks)
int	compareTo(UUID another)
boolean	equals(Object another)
static UUID	fromBytes(byte[] bytes)
static UUID	fromCurrentTime()
static UUID	fromMillis(long millis)
static UUID	fromName(UUID namespace, String name)
static UUID	fromObject(Object o)
static UUID	fromString(String s)
static UUID	fromURL(String url)
static UUID	fromURL(URL url)
int	hashCode()
static boolean	isUUID(Object v)
static void	main(String[] args) Useful utility driver to get UUIDs form the command line.
long	millis()
static String	stringFromCurrentTime()
static String	stringFromMillis(long millis)
long	ticks()
byte[]	toBytes()
String	toString()
static boolean	validate(String s)
int	version()

Methods inherited from class java.lang.Object

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

Field Detail

debug

public static boolean debug

NAMESPACE_X500

public static final UUID NAMESPACE_X500

NAMESPACE_URL

public static final UUID NAMESPACE_URL

NAMESPACE_DNS

public static final UUID NAMESPACE_DNS

NAMESPACE_OID

public static final UUID NAMESPACE_OID

Method Detail

equals

public boolean equals(Object another)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

toBytes

public byte[] toBytes()

fromString

public static UUID fromString(String s)

fromBytes

public static UUID fromBytes(byte[] bytes)

fromObject

public static UUID fromObject(Object o)

isUUID

public static boolean isUUID(Object v)

millis

public long millis()

version

public int version()

ticks

public long ticks()

Returns:

ticks whose unit is 100 nanosecond ticks since 00:00:00.00, 15 October 1582

validate

public static boolean validate(String s)

bytesFromTime

public static byte[] bytesFromTime(long ticks)

stringFromMillis

public static String stringFromMillis(long millis)

fromMillis

public static UUID fromMillis(long millis)

bytesFromCurrentTime

public static byte[] bytesFromCurrentTime()

stringFromCurrentTime

public static String stringFromCurrentTime()

fromCurrentTime

public static UUID fromCurrentTime()

fromURL

public static UUID fromURL(String url)

fromURL

public static UUID fromURL(URL url)

fromName

public static UUID fromName(UUID namespace,
                            String name)

compareTo

public int compareTo(UUID another)

main

public static void main(String[] args)

Useful utility driver to get UUIDs form the command line. Run with "-h" argument to see usage.

Parameters:

args - command line arguments