PrefixCombFactory (uuid-creator 5.3.3 API)

java.lang.Object
- com.github.f4b6a3.uuid.factory.UuidFactory
- - com.github.f4b6a3.uuid.factory.AbstRandomBasedFactory
  - - com.github.f4b6a3.uuid.factory.AbstCombFactory
    - - com.github.f4b6a3.uuid.factory.nonstandard.PrefixCombFactory

All Implemented Interfaces:

NoArgsFactory
```
public final class PrefixCombFactory
extends AbstCombFactory
```
Concrete factory for creating Prefix COMB GUIDs.
A Prefix COMB GUID is a UUID that combines a creation time with random bits.
The creation millisecond is a 6 bytes PREFIX at the MOST significant bits.
The created UUID is a UUIDv4 for compatibility with RFC-4122.

See Also:

The Cost of GUIDs as Primary Keys

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class PrefixCombFactory.Builder
- Nested classes/interfaces inherited from class com.github.f4b6a3.uuid.factory.AbstRandomBasedFactory
  AbstRandomBasedFactory.ByteRandom, AbstRandomBasedFactory.IRandom, AbstRandomBasedFactory.LongRandom

Field Summary
- Fields inherited from class com.github.f4b6a3.uuid.factory.AbstCombFactory
  clock, DEFAULT_CLOCK
- Fields inherited from class com.github.f4b6a3.uuid.factory.AbstRandomBasedFactory
  random, UUID_BYTES
- Fields inherited from class com.github.f4b6a3.uuid.factory.UuidFactory
  version, versionMask

Constructor Summary

Constructors
Constructor	Description
`PrefixCombFactory()`
`PrefixCombFactory(Clock clock)`
`PrefixCombFactory(IntFunction<byte[]> randomFunction)`
`PrefixCombFactory(IntFunction<byte[]> randomFunction, Clock clock)`
`PrefixCombFactory(LongSupplier randomFunction)`
`PrefixCombFactory(LongSupplier randomFunction, Clock clock)`
`PrefixCombFactory(Random random)`
`PrefixCombFactory(Random random, Clock clock)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type Method Description

static PrefixCombFactory.Builder builder()

UUID create()
Returns a Prefix COMB GUID.
- Methods inherited from class com.github.f4b6a3.uuid.factory.UuidFactory
  getVersion, toUuid
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PrefixCombFactory
```
public PrefixCombFactory()
```

PrefixCombFactory

public PrefixCombFactory(Clock clock)

PrefixCombFactory

public PrefixCombFactory(Random random)

PrefixCombFactory

public PrefixCombFactory(Random random,
                         Clock clock)

PrefixCombFactory

public PrefixCombFactory(LongSupplier randomFunction)

PrefixCombFactory

public PrefixCombFactory(IntFunction<byte[]> randomFunction)

PrefixCombFactory

public PrefixCombFactory(LongSupplier randomFunction,
                         Clock clock)

PrefixCombFactory

public PrefixCombFactory(IntFunction<byte[]> randomFunction,
                         Clock clock)

Method Detail

builder

public static PrefixCombFactory.Builder builder()

create
```
public UUID create()
```
Returns a Prefix COMB GUID.

Returns:

a UUIDv4