Examples with CacheEntry org.hibernate.cache.spi.entry.CacheEntry used on opensource projects

Example 6 with CacheEntry

use of org.hibernate.cache.spi.entry.CacheEntry in project hibernate-orm by hibernate.

the class AbstractEntityPersister method initializeLazyProperty.

public Object initializeLazyProperty(String fieldName, Object entity, SharedSessionContractImplementor session) {
    final EntityEntry entry = session.getPersistenceContext().getEntry(entity);
    final InterceptorImplementor interceptor = ((PersistentAttributeInterceptable) entity).$$_hibernate_getInterceptor();
    assert interceptor != null : "Expecting bytecode interceptor to be non-null";
    if (hasCollections()) {
        final Type type = getPropertyType(fieldName);
        if (type.isCollectionType()) {
            // we have a condition where a collection attribute is being access via enhancement:
            // we can circumvent all the rest and just return the PersistentCollection
            final CollectionType collectionType = (CollectionType) type;
            final CollectionPersister persister = factory.getMetamodel().collectionPersister(collectionType.getRole());
            // Get/create the collection, and make sure it is initialized!  This initialized part is
            // different from proxy-based scenarios where we have to create the PersistentCollection
            // reference "ahead of time" to add as a reference to the proxy.  For bytecode solutions
            // we are not creating the PersistentCollection ahead of time, but instead we are creating
            // it on first request through the enhanced entity.
            // see if there is already a collection instance associated with the session
            // NOTE : can this ever happen?
            final Serializable key = getCollectionKey(persister, entity, entry, session);
            PersistentCollection collection = session.getPersistenceContext().getCollection(new CollectionKey(persister, key));
            if (collection == null) {
                collection = collectionType.instantiate(session, persister, key);
                collection.setOwner(entity);
                session.getPersistenceContext().addUninitializedCollection(persister, collection, key);
            }
            // HHH-11161 Initialize, if the collection is not extra lazy
            if (!persister.isExtraLazy()) {
                session.initializeCollection(collection, false);
            }
            interceptor.attributeInitialized(fieldName);
            if (collectionType.isArrayType()) {
                session.getPersistenceContext().addCollectionHolder(collection);
            }
            // update the "state" of the entity's EntityEntry to over-write UNFETCHED_PROPERTY reference
            // for the collection to the just loaded collection
            final EntityEntry ownerEntry = session.getPersistenceContext().getEntry(entity);
            if (ownerEntry == null) {
                // not good
                throw new AssertionFailure("Could not locate EntityEntry for the collection owner in the PersistenceContext");
            }
            ownerEntry.overwriteLoadedStateCollectionValue(fieldName, collection);
            // EARLY EXIT!!!
            return collection;
        }
    }
    final Serializable id = session.getContextEntityIdentifier(entity);
    if (entry == null) {
        throw new HibernateException("entity is not associated with the session: " + id);
    }
    if (LOG.isTraceEnabled()) {
        LOG.tracev("Initializing lazy properties of: {0}, field access: {1}", MessageHelper.infoString(this, id, getFactory()), fieldName);
    }
    if (session.getCacheMode().isGetEnabled() && canReadFromCache() && isLazyPropertiesCacheable()) {
        final EntityDataAccess cacheAccess = getCacheAccessStrategy();
        final Object cacheKey = cacheAccess.generateCacheKey(id, this, session.getFactory(), session.getTenantIdentifier());
        final Object ce = CacheHelper.fromSharedCache(session, cacheKey, cacheAccess);
        if (ce != null) {
            final CacheEntry cacheEntry = (CacheEntry) getCacheEntryStructure().destructure(ce, factory);
            final Object initializedValue = initializeLazyPropertiesFromCache(fieldName, entity, session, entry, cacheEntry);
            interceptor.attributeInitialized(fieldName);
            // NOTE EARLY EXIT!!!
            return initializedValue;
        }
    }
    return initializeLazyPropertiesFromDatastore(fieldName, entity, session, id, entry);
}

Example 7 with CacheEntry

use of org.hibernate.cache.spi.entry.CacheEntry in project hibernate-orm by hibernate.

the class EntityUpdateAction method execute.

@Override
public void execute() throws HibernateException {
    final Serializable id = getId();
    final EntityPersister persister = getPersister();
    final SharedSessionContractImplementor session = getSession();
    final Object instance = getInstance();
    final boolean veto = preUpdate();
    final SessionFactoryImplementor factory = session.getFactory();
    Object previousVersion = this.previousVersion;
    if (persister.isVersionPropertyGenerated()) {
        // we need to grab the version value from the entity, otherwise
        // we have issues with generated-version entities that may have
        // multiple actions queued during the same flush
        previousVersion = persister.getVersion(instance);
    }
    final Object ck;
    if (persister.canWriteToCache()) {
        final EntityDataAccess cache = persister.getCacheAccessStrategy();
        ck = cache.generateCacheKey(id, persister, factory, session.getTenantIdentifier());
        lock = cache.lockItem(session, ck, previousVersion);
    } else {
        ck = null;
    }
    if (!veto) {
        persister.update(id, state, dirtyFields, hasDirtyCollection, previousState, previousVersion, instance, rowId, session);
    }
    final EntityEntry entry = session.getPersistenceContext().getEntry(instance);
    if (entry == null) {
        throw new AssertionFailure("possible nonthreadsafe access to session");
    }
    if (entry.getStatus() == Status.MANAGED || persister.isVersionPropertyGenerated()) {
        // get the updated snapshot of the entity state by cloning current state;
        // it is safe to copy in place, since by this time no-one else (should have)
        // has a reference  to the array
        TypeHelper.deepCopy(state, persister.getPropertyTypes(), persister.getPropertyCheckability(), state, session);
        if (persister.hasUpdateGeneratedProperties()) {
            // this entity defines proeprty generation, so process those generated
            // values...
            persister.processUpdateGeneratedProperties(id, instance, state, session);
            if (persister.isVersionPropertyGenerated()) {
                nextVersion = Versioning.getVersion(state, persister);
            }
        }
        // have the entity entry doAfterTransactionCompletion post-update processing, passing it the
        // update state and the new version (if one).
        entry.postUpdate(instance, state, nextVersion);
    }
    if (persister.canWriteToCache()) {
        if (persister.isCacheInvalidationRequired() || entry.getStatus() != Status.MANAGED) {
            persister.getCacheAccessStrategy().remove(session, ck);
        } else if (session.getCacheMode().isPutEnabled()) {
            // TODO: inefficient if that cache is just going to ignore the updated state!
            final CacheEntry ce = persister.buildCacheEntry(instance, state, nextVersion, getSession());
            cacheEntry = persister.getCacheEntryStructure().structure(ce);
            final boolean put = cacheUpdate(persister, previousVersion, ck);
            if (put && factory.getStatistics().isStatisticsEnabled()) {
                factory.getStatistics().entityCachePut(StatsHelper.INSTANCE.getRootEntityRole(persister), getPersister().getCacheAccessStrategy().getRegion().getName());
            }
        }
    }
    session.getPersistenceContext().getNaturalIdHelper().manageSharedNaturalIdCrossReference(persister, id, state, previousNaturalIdValues, CachedNaturalIdValueSource.UPDATE);
    postUpdate();
    if (factory.getStatistics().isStatisticsEnabled() && !veto) {
        factory.getStatistics().updateEntity(getPersister().getEntityName());
    }
}