com.fasterxml.uuid.impl
Class UUIDUtil

java.lang.Object
  com.fasterxml.uuid.impl.UUIDUtil

public class UUIDUtil
extends Object

Field Summary

static int	BYTE_OFFSET_CLOCK_HI
static int	BYTE_OFFSET_CLOCK_LO
static int	BYTE_OFFSET_CLOCK_MID
static int	BYTE_OFFSET_CLOCK_SEQUENCE
static int	BYTE_OFFSET_TYPE
static int	BYTE_OFFSET_VARIATION

Constructor Summary

UUIDUtil()

Method Summary

static byte[]	asByteArray(UUID uuid)
static UUID	constructUUID(UUIDType type, byte[] uuidBytes) Helper method for constructing UUID instances with appropriate type
static UUID	constructUUID(UUIDType type, long l1, long l2)
protected static long	gatherLong(byte[] buffer, int offset)
static long	initUUIDFirstLong(long l1, int rawType)
static long	initUUIDFirstLong(long l1, UUIDType type)
static long	initUUIDSecondLong(long l2)
static void	toByteArray(UUID uuid, byte[] buffer)
static void	toByteArray(UUID uuid, byte[] buffer, int offset)
static UUIDType	typeOf(UUID uuid) Method for determining which type of UUID given UUID is.
static UUID	uuid(byte[] bytes) Factory method for constructing UUID instance from given 16 bytes.
static UUID	uuid(byte[] bytes, int offset) Factory method for constructing UUID instance from given 16 bytes.
static UUID	uuid(String id) Factory method for creating UUIDs from the canonical string representation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BYTE_OFFSET_CLOCK_LO

public static final int BYTE_OFFSET_CLOCK_LO

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Constant Field Values

BYTE_OFFSET_CLOCK_MID

public static final int BYTE_OFFSET_CLOCK_MID

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Constant Field Values

BYTE_OFFSET_CLOCK_HI

public static final int BYTE_OFFSET_CLOCK_HI

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Constant Field Values

BYTE_OFFSET_TYPE

public static final int BYTE_OFFSET_TYPE

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Constant Field Values

BYTE_OFFSET_CLOCK_SEQUENCE

public static final int BYTE_OFFSET_CLOCK_SEQUENCE

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Constant Field Values

BYTE_OFFSET_VARIATION

public static final int BYTE_OFFSET_VARIATION

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Constant Field Values

Constructor Detail

UUIDUtil

public UUIDUtil()

Method Detail

uuid

public static UUID uuid(String id)

Factory method for creating UUIDs from the canonical string representation.

Parameters:

id - String that contains the canonical representation of the UUID to build; 36-char string (see UUID specs for details). Hex-chars may be in upper-case too; UUID class will always output them in lowercase.

uuid

public static UUID uuid(byte[] bytes)

Factory method for constructing UUID instance from given 16 bytes. NOTE: since absolutely no validation is done for contents, this method should only be used if contents are known to be valid.

uuid

public static UUID uuid(byte[] bytes,
                        int offset)

Factory method for constructing UUID instance from given 16 bytes. NOTE: since absolutely no validation is done for contents, this method should only be used if contents are known to be valid.

Parameters:

bytes - Array that contains sequence of 16 bytes that contain a valid UUID

offset - Offset of the first of 16 bytes

constructUUID

public static UUID constructUUID(UUIDType type,
                                 byte[] uuidBytes)

Helper method for constructing UUID instances with appropriate type

constructUUID

public static UUID constructUUID(UUIDType type,
                                 long l1,
                                 long l2)

initUUIDFirstLong

public static long initUUIDFirstLong(long l1,
                                     UUIDType type)

initUUIDFirstLong

public static long initUUIDFirstLong(long l1,
                                     int rawType)

initUUIDSecondLong

public static long initUUIDSecondLong(long l2)

typeOf

public static UUIDType typeOf(UUID uuid)

Method for determining which type of UUID given UUID is. Returns null if type can not be determined.

Parameters:

uuid - UUID to check

Returns:

Null if uuid is null or type can not be determined (== invalid UUID); otherwise type

asByteArray

public static byte[] asByteArray(UUID uuid)

toByteArray

public static void toByteArray(UUID uuid,
                               byte[] buffer)

toByteArray

public static void toByteArray(UUID uuid,
                               byte[] buffer,
                               int offset)

gatherLong

protected static final long gatherLong(byte[] buffer,
                                       int offset)