com.github.f4b6a3.uuid.factory.standard

Class RandomBasedFactory

java.lang.Object

com.github.f4b6a3.uuid.factory.UuidFactory

com.github.f4b6a3.uuid.factory.AbstRandomBasedFactory

com.github.f4b6a3.uuid.factory.standard.RandomBasedFactory

public final class RandomBasedFactory
extends AbstRandomBasedFactory

Concrete factory for creating random-based unique identifiers (UUIDv4).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RandomBasedFactory.Builder Concrete builder for creating a random-based factory.

Nested classes/interfaces inherited from class com.github.f4b6a3.uuid.factory.AbstRandomBasedFactory

AbstRandomBasedFactory.FastRandom, AbstRandomBasedFactory.IRandom, AbstRandomBasedFactory.SafeRandom

Nested classes/interfaces inherited from class com.github.f4b6a3.uuid.factory.UuidFactory

UuidFactory.Parameters

Field Summary

Fields inherited from class com.github.f4b6a3.uuid.factory.AbstRandomBasedFactory

lock, random, UUID_BYTES

Fields inherited from class com.github.f4b6a3.uuid.factory.UuidFactory

version, versionMask

Constructor Summary

Constructors

Constructor and Description
RandomBasedFactory() Default constructor.
RandomBasedFactory(LongSupplier randomSupplier) Constructor with a function which returns random number.
RandomBasedFactory(Random random) Constructor with a Random instance.

Method Summary

Modifier and Type	Method and Description
static RandomBasedFactory.Builder	builder() Returns a builder of random-based factory.
UUID	create() Returns a random-based UUID. ### RFC 9562 - 4.4.

Methods inherited from class com.github.f4b6a3.uuid.factory.AbstRandomBasedFactory

create

Methods inherited from class com.github.f4b6a3.uuid.factory.UuidFactory

getVersion, nameBytes, nameBytes, namespaceBytes, namespaceBytes, namespaceBytes, toUuid

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomBasedFactory

public RandomBasedFactory()

Default constructor.

RandomBasedFactory

public RandomBasedFactory(Random random)

Constructor with a Random instance.

Parameters:

random - a Random instance

RandomBasedFactory

public RandomBasedFactory(LongSupplier randomSupplier)

Constructor with a function which returns random number.

Parameters:

randomSupplier - a function

Method Detail

builder

public static RandomBasedFactory.Builder builder()

Returns a builder of random-based factory.

Returns:

a builder

create

public UUID create()

Returns a random-based UUID. ### RFC 9562 - 4.4. Algorithms for Creating a UUID from Truly Random or Pseudo-Random Numbers (1) Set the two most significant bits (bits 6 and 7) of the clock_seq_hi_and_reserved to zero and one, respectively. (2) Set the four most significant bits (bits 12 through 15) of the time_hi_and_version field to the 4-bit version number from Section 4.1.3. (3) Set all the other bits to randomly (or pseudo-randomly) chosen values.

Specified by:

create in class UuidFactory

Returns:

a random-based UUID