Package com.github.f4b6a3.uuid.creator

Class AbstractRandomBasedUuidCreator

java.lang.Object

com.github.f4b6a3.uuid.creator.AbstractUuidCreator

com.github.f4b6a3.uuid.creator.AbstractRandomBasedUuidCreator

All Implemented Interfaces:

NoArgumentsUuidCreator

Direct Known Subclasses:

PrefixCombCreator, RandomBasedUuidCreator, ShortPrefixCombCreator, ShortSuffixCombCreator, SuffixCombCreator

public abstract class AbstractRandomBasedUuidCreator
extends AbstractUuidCreator
implements NoArgumentsUuidCreator

Factory that creates random-based UUIDs.

Field Summary

Fields

Modifier and Type	Field	Description
protected RandomStrategy	randomStrategy

Fields inherited from class com.github.f4b6a3.uuid.creator.AbstractUuidCreator

version, versionBits

Constructor Summary

Constructors

Constructor	Description
AbstractRandomBasedUuidCreator(UuidVersion version)

Method Summary

Modifier and Type	Method	Description
UUID	create()	Returns a random-based UUID. ### RFC-4122 - 4.4.
<T extends AbstractRandomBasedUuidCreator> T	withRandomGenerator(Random random)	Replaces the default random strategy with another that uses the input Random instance.
<T extends AbstractRandomBasedUuidCreator> T	withRandomStrategy(RandomStrategy randomStrategy)	Replaces the default random strategy with another.

Methods inherited from class com.github.f4b6a3.uuid.creator.AbstractUuidCreator

getUuid, getUuid, getVersion

Methods inherited from class java.lang.Object

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

Field Detail

randomStrategy

protected RandomStrategy randomStrategy

Constructor Detail

AbstractRandomBasedUuidCreator

public AbstractRandomBasedUuidCreator(UuidVersion version)

Method Detail

create

public UUID create()

Returns a random-based UUID. ### RFC-4122 - 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 interface NoArgumentsUuidCreator

Returns:

a random-based UUID

withRandomStrategy

public <T extends AbstractRandomBasedUuidCreator> T withRandomStrategy(RandomStrategy randomStrategy)

Replaces the default random strategy with another. The default random strategy uses SecureRandom. See Random.

Type Parameters:

T - the type parameter

Parameters:

randomStrategy - a random strategy

Returns:

AbstractRandomBasedUuidCreator

withRandomGenerator

public <T extends AbstractRandomBasedUuidCreator> T withRandomGenerator(Random random)

Replaces the default random strategy with another that uses the input Random instance. It replaces the internal DefaultRandomStrategy with OtherRandomStrategy.

Type Parameters:

T - the type parameter

Parameters:

random - a random generator

Returns:

AbstractRandomBasedUuidCreator