Examples with SessionImplementor org.hibernate.engine.spi.SessionImplementor used on opensource projects

Example 11 with SessionImplementor

use of org.hibernate.engine.spi.SessionImplementor in project hibernate-orm by hibernate.

the class DefaultInitializeCollectionEventListener method onInitializeCollection.

/**
	 * called by a collection that wants to initialize itself
	 */
public void onInitializeCollection(InitializeCollectionEvent event) throws HibernateException {
    PersistentCollection collection = event.getCollection();
    SessionImplementor source = event.getSession();
    CollectionEntry ce = source.getPersistenceContext().getCollectionEntry(collection);
    if (ce == null) {
        throw new HibernateException("collection was evicted");
    }
    if (!collection.wasInitialized()) {
        final boolean traceEnabled = LOG.isTraceEnabled();
        if (traceEnabled) {
            LOG.tracev("Initializing collection {0}", MessageHelper.collectionInfoString(ce.getLoadedPersister(), collection, ce.getLoadedKey(), source));
            LOG.trace("Checking second-level cache");
        }
        final boolean foundInCache = initializeCollectionFromCache(ce.getLoadedKey(), ce.getLoadedPersister(), collection, source);
        if (foundInCache) {
            if (traceEnabled) {
                LOG.trace("Collection initialized from cache");
            }
        } else {
            if (traceEnabled) {
                LOG.trace("Collection not cached");
            }
            ce.getLoadedPersister().initialize(ce.getLoadedKey(), source);
            if (traceEnabled) {
                LOG.trace("Collection initialized");
            }
            if (source.getFactory().getStatistics().isStatisticsEnabled()) {
                source.getFactory().getStatisticsImplementor().fetchCollection(ce.getLoadedPersister().getRole());
            }
        }
    }
}

Example 12 with SessionImplementor

use of org.hibernate.engine.spi.SessionImplementor in project hibernate-orm by hibernate.

the class DefaultLockEventListener method onLock.

/**
	 * Handle the given lock event.
	 *
	 * @param event The lock event to be handled.
	 * @throws HibernateException
	 */
public void onLock(LockEvent event) throws HibernateException {
    if (event.getObject() == null) {
        throw new NullPointerException("attempted to lock null");
    }
    if (event.getLockMode() == LockMode.WRITE) {
        throw new HibernateException("Invalid lock mode for lock()");
    }
    if (event.getLockMode() == LockMode.UPGRADE_SKIPLOCKED) {
        LOG.explicitSkipLockedLockCombo();
    }
    SessionImplementor source = event.getSession();
    Object entity = source.getPersistenceContext().unproxyAndReassociate(event.getObject());
    //TODO: if object was an uninitialized proxy, this is inefficient,
    //      resulting in two SQL selects
    EntityEntry entry = source.getPersistenceContext().getEntry(entity);
    if (entry == null) {
        final EntityPersister persister = source.getEntityPersister(event.getEntityName(), entity);
        final Serializable id = persister.getIdentifier(entity, source);
        if (!ForeignKeys.isNotTransient(event.getEntityName(), entity, Boolean.FALSE, source)) {
            throw new TransientObjectException("cannot lock an unsaved transient instance: " + persister.getEntityName());
        }
        entry = reassociate(event, entity, id, persister);
        cascadeOnLock(event, persister, entity);
    }
    upgradeLock(entity, entry, event.getLockOptions(), event.getSession());
}

Example 13 with SessionImplementor

use of org.hibernate.engine.spi.SessionImplementor in project hibernate-orm by hibernate.

the class WrapVisitor method processCollection.

@Override
Object processCollection(Object collection, CollectionType collectionType) throws HibernateException {
    if (collection != null && (collection instanceof PersistentCollection)) {
        final SessionImplementor session = getSession();
        PersistentCollection coll = (PersistentCollection) collection;
        if (coll.setCurrentSession(session)) {
            reattachCollection(coll, collectionType);
        }
        return null;
    } else {
        return processArrayOrNewCollection(collection, collectionType);
    }
}

Example 14 with SessionImplementor

use of org.hibernate.engine.spi.SessionImplementor in project hibernate-orm by hibernate.

the class WrapVisitor method processArrayOrNewCollection.

final Object processArrayOrNewCollection(Object collection, CollectionType collectionType) throws HibernateException {
    final SessionImplementor session = getSession();
    if (collection == null) {
        //do nothing
        return null;
    } else {
        CollectionPersister persister = session.getFactory().getCollectionPersister(collectionType.getRole());
        final PersistenceContext persistenceContext = session.getPersistenceContext();
        //TODO: move into collection type, so we can use polymorphism!
        if (collectionType.hasHolder()) {
            if (collection == CollectionType.UNFETCHED_COLLECTION) {
                return null;
            }
            PersistentCollection ah = persistenceContext.getCollectionHolder(collection);
            if (ah == null) {
                ah = collectionType.wrap(session, collection);
                persistenceContext.addNewCollection(persister, ah);
                persistenceContext.addCollectionHolder(ah);
            }
            return null;
        } else {
            PersistentCollection persistentCollection = collectionType.wrap(session, collection);
            persistenceContext.addNewCollection(persister, persistentCollection);
            if (LOG.isTraceEnabled()) {
                LOG.tracev("Wrapped collection in role: {0}", collectionType.getRole());
            }
            //Force a substitution!
            return persistentCollection;
        }
    }
}

Example 15 with SessionImplementor

use of org.hibernate.engine.spi.SessionImplementor in project hibernate-orm by hibernate.

the class DefaultSaveOrUpdateEventListener method onSaveOrUpdate.

/**
	 * Handle the given update event.
	 *
	 * @param event The update event to be handled.
	 */
public void onSaveOrUpdate(SaveOrUpdateEvent event) {
    final SessionImplementor source = event.getSession();
    final Object object = event.getObject();
    final Serializable requestedId = event.getRequestedId();
    if (requestedId != null) {
        //reassociating the proxy
        if (object instanceof HibernateProxy) {
            ((HibernateProxy) object).getHibernateLazyInitializer().setIdentifier(requestedId);
        }
    }
    // For an uninitialized proxy, noop, don't even need to return an id, since it is never a save()
    if (reassociateIfUninitializedProxy(object, source)) {
        LOG.trace("Reassociated uninitialized proxy");
    } else {
        //initialize properties of the event:
        final Object entity = source.getPersistenceContext().unproxyAndReassociate(object);
        event.setEntity(entity);
        event.setEntry(source.getPersistenceContext().getEntry(entity));
        //return the id in the event object
        event.setResultId(performSaveOrUpdate(event));
    }
}