com.github.f4b6a3.uuid.factory

Class CombGuidCreator

java.lang.Object

com.github.f4b6a3.uuid.factory.abst.AbstractUuidCreator

com.github.f4b6a3.uuid.factory.CombGuidCreator

All Implemented Interfaces:

NoArgumentsUuidCreator

public class CombGuidCreator
extends AbstractUuidCreator
implements NoArgumentsUuidCreator

Factory that creates COMB UUIDs. This implementation is derived from the ULID specification. The only difference is that the millisecond bits are moved to the end of the GUID. See the LexicalOrderGuidCreator. The Cost of GUIDs as Primary Keys (COMB GUID inception): http://www.informit.com/articles/article.aspx?p=25862 ULID specification: https://github.com/ulid/spec

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	OVERFLOW_MESSAGE
protected TimestampStrategy	timestampStrategy

Fields inherited from class com.github.f4b6a3.uuid.factory.abst.AbstractUuidCreator

NIL_UUID, RFC4122_VARIANT_BITS, RFC4122_VERSION_BITS, version

Constructor Summary

Constructors

Constructor and Description
CombGuidCreator()

Method Summary

Modifier and Type	Method and Description
UUID	create() Return a COMB GUID.
protected void	increment() Increment the random part of the GUID.
protected void	reset() Reset the random part of the GUID.
<T extends CombGuidCreator> T	withTimestampStrategy(TimestampStrategy timestampStrategy) Used for changing the timestamp strategy.

Methods inherited from class com.github.f4b6a3.uuid.factory.abst.AbstractUuidCreator

getVariantBits, getVersion, getVersionBits, setVariantBits, setVersionBits, valid

Methods inherited from class java.lang.Object

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

Field Detail

OVERFLOW_MESSAGE

protected static final String OVERFLOW_MESSAGE

See Also:

Constant Field Values

timestampStrategy

protected TimestampStrategy timestampStrategy

Constructor Detail

CombGuidCreator

public CombGuidCreator()

Method Detail

create

public UUID create()

Return a COMB GUID. See LexicalOrderGuidCreator.create()

Specified by:

create in interface NoArgumentsUuidCreator

reset

protected void reset()

Reset the random part of the GUID.

increment

protected void increment()

Increment the random part of the GUID.

Throws:

UuidCreatorException - if an overflow happens.

withTimestampStrategy

public <T extends CombGuidCreator> T withTimestampStrategy(TimestampStrategy timestampStrategy)

Used for changing the timestamp strategy.

Parameters:

timestampStrategy - a timestamp strategy

Returns:

CombGuidCreator