use of org.hibernate.event.spi.PreLoadEventListener in project hibernate-orm by hibernate.
the class TwoPhaseLoad method doInitializeEntity.
private static void doInitializeEntity(final Object entity, final EntityEntry entityEntry, final boolean readOnly, final SharedSessionContractImplementor session, final PreLoadEvent preLoadEvent) throws HibernateException {
final PersistenceContext persistenceContext = session.getPersistenceContext();
final EntityPersister persister = entityEntry.getPersister();
final Serializable id = entityEntry.getId();
final Object[] hydratedState = entityEntry.getLoadedState();
final boolean debugEnabled = LOG.isDebugEnabled();
if (debugEnabled) {
LOG.debugf("Resolving associations for %s", MessageHelper.infoString(persister, id, session.getFactory()));
}
final Type[] types = persister.getPropertyTypes();
for (int i = 0; i < hydratedState.length; i++) {
final Object value = hydratedState[i];
if (value == LazyPropertyInitializer.UNFETCHED_PROPERTY) {
// No resolution is necessary, unless the lazy property is a collection.
if (types[i].isCollectionType()) {
// IMPLEMENTATION NOTE: this is a lazy collection property on a bytecode-enhanced entity.
// HHH-10989: We need to resolve the collection so that a CollectionReference is added to StatefulPersistentContext.
// As mentioned above, hydratedState[i] needs to remain LazyPropertyInitializer.UNFETCHED_PROPERTY
// so do not assign the resolved, unitialized PersistentCollection back to hydratedState[i].
types[i].resolve(value, session, entity);
}
} else if (value != PropertyAccessStrategyBackRefImpl.UNKNOWN) {
// we know value != LazyPropertyInitializer.UNFETCHED_PROPERTY
hydratedState[i] = types[i].resolve(value, session, entity);
}
}
//Must occur afterQuery resolving identifiers!
if (session.isEventSource()) {
preLoadEvent.setEntity(entity).setState(hydratedState).setId(id).setPersister(persister);
final EventListenerGroup<PreLoadEventListener> listenerGroup = session.getFactory().getServiceRegistry().getService(EventListenerRegistry.class).getEventListenerGroup(EventType.PRE_LOAD);
for (PreLoadEventListener listener : listenerGroup.listeners()) {
listener.onPreLoad(preLoadEvent);
}
}
persister.setPropertyValues(entity, hydratedState);
final SessionFactoryImplementor factory = session.getFactory();
if (persister.hasCache() && session.getCacheMode().isPutEnabled()) {
if (debugEnabled) {
LOG.debugf("Adding entity to second-level cache: %s", MessageHelper.infoString(persister, id, session.getFactory()));
}
final Object version = Versioning.getVersion(hydratedState, persister);
final CacheEntry entry = persister.buildCacheEntry(entity, hydratedState, version, session);
final EntityRegionAccessStrategy cache = persister.getCacheAccessStrategy();
final Object cacheKey = cache.generateCacheKey(id, persister, factory, session.getTenantIdentifier());
// we need to be careful not to clobber the lock here in the cache so that it can be rolled back if need be
if (session.getPersistenceContext().wasInsertedDuringTransaction(persister, id)) {
cache.update(session, cacheKey, persister.getCacheEntryStructure().structure(entry), version, version);
} else {
final SessionEventListenerManager eventListenerManager = session.getEventListenerManager();
try {
eventListenerManager.cachePutStart();
final boolean put = cache.putFromLoad(session, cacheKey, persister.getCacheEntryStructure().structure(entry), session.getTimestamp(), version, useMinimalPuts(session, entityEntry));
if (put && factory.getStatistics().isStatisticsEnabled()) {
factory.getStatistics().secondLevelCachePut(cache.getRegion().getName());
}
} finally {
eventListenerManager.cachePutEnd();
}
}
}
if (persister.hasNaturalIdentifier()) {
persistenceContext.getNaturalIdHelper().cacheNaturalIdCrossReferenceFromLoad(persister, id, persistenceContext.getNaturalIdHelper().extractNaturalIdValues(hydratedState, persister));
}
boolean isReallyReadOnly = readOnly;
if (!persister.isMutable()) {
isReallyReadOnly = true;
} else {
final Object proxy = persistenceContext.getProxy(entityEntry.getEntityKey());
if (proxy != null) {
// there is already a proxy for this impl
// only set the status to read-only if the proxy is read-only
isReallyReadOnly = ((HibernateProxy) proxy).getHibernateLazyInitializer().isReadOnly();
}
}
if (isReallyReadOnly) {
//no need to take a snapshot - this is a
//performance optimization, but not really
//important, except for entities with huge
//mutable property values
persistenceContext.setEntryStatus(entityEntry, Status.READ_ONLY);
} else {
//take a snapshot
TypeHelper.deepCopy(hydratedState, persister.getPropertyTypes(), persister.getPropertyUpdateability(), //afterQuery setting values to object
hydratedState, session);
persistenceContext.setEntryStatus(entityEntry, Status.MANAGED);
}
persister.afterInitialize(entity, session);
if (debugEnabled) {
LOG.debugf("Done materializing entity %s", MessageHelper.infoString(persister, id, session.getFactory()));
}
if (factory.getStatistics().isStatisticsEnabled()) {
factory.getStatistics().loadEntity(persister.getEntityName());
}
}
use of org.hibernate.event.spi.PreLoadEventListener in project hibernate-orm by hibernate.
the class StandardCacheEntryImpl method assemble.
/**
* Assemble the previously disassembled state represented by this entry into the given entity instance.
*
* Additionally manages the PreLoadEvent callbacks.
*
* @param instance The entity instance
* @param id The entity identifier
* @param persister The entity persister
* @param interceptor (currently unused)
* @param session The session
*
* @return The assembled state
*
* @throws HibernateException Indicates a problem performing assembly or calling the PreLoadEventListeners.
*
* @see org.hibernate.type.Type#assemble
* @see org.hibernate.type.Type#disassemble
*/
public Object[] assemble(final Object instance, final Serializable id, final EntityPersister persister, final Interceptor interceptor, final EventSource session) throws HibernateException {
if (!persister.getEntityName().equals(subclass)) {
throw new AssertionFailure("Tried to assemble a different subclass instance");
}
//assembled state gets put in a new array (we read from cache by value!)
final Object[] assembledProps = TypeHelper.assemble(disassembledState, persister.getPropertyTypes(), session, instance);
//persister.setIdentifier(instance, id); //beforeQuery calling interceptor, for consistency with normal load
//TODO: reuse the PreLoadEvent
final PreLoadEvent preLoadEvent = new PreLoadEvent(session).setEntity(instance).setState(assembledProps).setId(id).setPersister(persister);
final EventListenerGroup<PreLoadEventListener> listenerGroup = session.getFactory().getServiceRegistry().getService(EventListenerRegistry.class).getEventListenerGroup(EventType.PRE_LOAD);
for (PreLoadEventListener listener : listenerGroup.listeners()) {
listener.onPreLoad(preLoadEvent);
}
persister.setPropertyValues(instance, assembledProps);
return assembledProps;
}
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