org.hibernate.envers.event.spi

Class BaseEnversCollectionEventListener

java.lang.Object

org.hibernate.envers.event.spi.BaseEnversEventListener

org.hibernate.envers.event.spi.BaseEnversCollectionEventListener

All Implemented Interfaces:

EnversListener

Direct Known Subclasses:

EnversPostCollectionRecreateEventListenerImpl, EnversPreCollectionRemoveEventListenerImpl, EnversPreCollectionUpdateEventListenerImpl

public abstract class BaseEnversCollectionEventListener
extends BaseEnversEventListener

Base class for Envers' collection event related listeners

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BaseEnversCollectionEventListener(EnversService enversService)

Method Summary

Modifier and Type	Method and Description
protected CollectionEntry	getCollectionEntry(AbstractCollectionEvent event)
protected Serializable	initializeCollection(AbstractCollectionEvent event) Forces persistent collection initialization.
protected void	onCollectionAction(AbstractCollectionEvent event, PersistentCollection newColl, Serializable oldColl, CollectionEntry collectionEntry)
protected boolean	shouldGenerateRevision(AbstractCollectionEvent event) Checks whether modification of not-owned relation field triggers new revision and owner entity is versioned.

Methods inherited from class org.hibernate.envers.event.spi.BaseEnversEventListener

checkIfTransactionInProgress, generateBidirectionalCollectionChangeWorkUnits, getEnversService

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseEnversCollectionEventListener

protected BaseEnversCollectionEventListener(EnversService enversService)

Method Detail

getCollectionEntry

protected final CollectionEntry getCollectionEntry(AbstractCollectionEvent event)

onCollectionAction

protected final void onCollectionAction(AbstractCollectionEvent event,
                                        PersistentCollection newColl,
                                        Serializable oldColl,
                                        CollectionEntry collectionEntry)

initializeCollection

protected Serializable initializeCollection(AbstractCollectionEvent event)

Forces persistent collection initialization.

Parameters:

event - Collection event.

Returns:

Stored snapshot.

shouldGenerateRevision

protected boolean shouldGenerateRevision(AbstractCollectionEvent event)

Checks whether modification of not-owned relation field triggers new revision and owner entity is versioned.

Parameters:

event - Collection event.

Returns:

true if revision based on given event should be generated, false otherwise.