Module io.ebean.core

Package io.ebeaninternal.server.idgen

Class UuidV4IdGenerator

java.lang.Object

io.ebeaninternal.server.idgen.UuidV4IdGenerator

All Implemented Interfaces:

PlatformIdGenerator

public class UuidV4IdGenerator
extends Object
implements PlatformIdGenerator

IdGenerator for java util UUID.

This generator generates a 60bit random UUID according to https://tools.ietf.org/html/rfc4122.html#section-4.4 Use this generator if you want truly random UUIDs

Field Summary

Fields

Modifier and Type	Field	Description
static final UuidV4IdGenerator	INSTANCE

Fields inherited from interface io.ebean.config.dbplatform.PlatformIdGenerator

AUTO_UUID

Constructor Summary

Constructors

Constructor	Description
UuidV4IdGenerator()

Method Summary

Modifier and Type	Method	Description
String	getName()	Returns "uuid".
boolean	isDbSequence()	Returns false.
Object	nextId(Transaction t)	Return UUID from UUID.randomUUID();
void	preAllocateIds(int allocateSize)	Ignored for UUID as not required as a performance optimisation.

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final UuidV4IdGenerator INSTANCE

Constructor Details

UuidV4IdGenerator

public UuidV4IdGenerator()

Method Details

nextId

public Object nextId(Transaction t)

Return UUID from UUID.randomUUID();

Specified by:

nextId in interface PlatformIdGenerator

getName

public String getName()

Returns "uuid".

Specified by:

getName in interface PlatformIdGenerator

isDbSequence

public boolean isDbSequence()

Returns false.

Specified by:

isDbSequence in interface PlatformIdGenerator

preAllocateIds

public void preAllocateIds(int allocateSize)

Ignored for UUID as not required as a performance optimisation.

Specified by:

preAllocateIds in interface PlatformIdGenerator