org.nuxeo.ecm.platform.uidgen.service
Class UIDSequencerImpl

java.lang.Object
  org.nuxeo.ecm.platform.uidgen.service.UIDSequencerImpl

All Implemented Interfaces:

UIDSequencer

public class UIDSequencerImpl
extends Object
implements UIDSequencer

This implementation uses a static persistence provider to be able to instantiate this class without passing by Framework.getService -> this is to avoid potential problems do to sequencer factories. Anyway sequencer factories should be removed (I don't think they are really needed).

Author:

Bogdan Stefanescu

Constructor Summary

UIDSequencerImpl()

Method Summary

static void	dispose() Must be called when the service is no longer needed
int	getNext(EntityManager em, String key)
int	getNext(String key) For the given key returns the incremented UID which is also stored in the same sequence entry.
static PersistenceProvider	getOrCreatePersistenceProvider()

Methods inherited from class java.lang.Object

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

Constructor Detail

UIDSequencerImpl

public UIDSequencerImpl()

Method Detail

dispose

public static void dispose()

Must be called when the service is no longer needed

getOrCreatePersistenceProvider

public static PersistenceProvider getOrCreatePersistenceProvider()

getNext

public int getNext(String key)

Description copied from interface: UIDSequencer

For the given key returns the incremented UID which is also stored in the same sequence entry. This is a "one time use" function for a document.

Specified by:

getNext in interface UIDSequencer

Returns:

getNext

public int getNext(EntityManager em,
                   String key)