Examples with EntityPersister org.hibernate.persister.entity.EntityPersister used on opensource projects

Example 16 with EntityPersister

use of org.hibernate.persister.entity.EntityPersister in project hibernate-orm by hibernate.

the class DefaultEvictEventListener method onEvict.

/**
	 * Handle the given evict event.
	 *
	 * @param event The evict event to be handled.
	 *
	 * @throws HibernateException
	 */
public void onEvict(EvictEvent event) throws HibernateException {
    final Object object = event.getObject();
    if (object == null) {
        throw new NullPointerException("null passed to Session.evict()");
    }
    final EventSource source = event.getSession();
    final PersistenceContext persistenceContext = source.getPersistenceContext();
    if (object instanceof HibernateProxy) {
        final LazyInitializer li = ((HibernateProxy) object).getHibernateLazyInitializer();
        final Serializable id = li.getIdentifier();
        if (id == null) {
            throw new IllegalArgumentException("Could not determine identifier of proxy passed to evict()");
        }
        final EntityPersister persister = source.getFactory().getEntityPersister(li.getEntityName());
        final EntityKey key = source.generateEntityKey(id, persister);
        persistenceContext.removeProxy(key);
        if (!li.isUninitialized()) {
            final Object entity = persistenceContext.removeEntity(key);
            if (entity != null) {
                EntityEntry e = persistenceContext.removeEntry(entity);
                doEvict(entity, key, e.getPersister(), event.getSession());
            }
        }
        li.unsetSession();
    } else {
        EntityEntry e = persistenceContext.removeEntry(object);
        if (e != null) {
            persistenceContext.removeEntity(e.getEntityKey());
            doEvict(object, e.getEntityKey(), e.getPersister(), source);
        } else {
            // see if the passed object is even an entity, and if not throw an exception
            // 		this is different than legacy Hibernate behavior, but what JPA 2.1 is calling for
            //		with EntityManager.detach
            EntityPersister persister = null;
            final String entityName = persistenceContext.getSession().guessEntityName(object);
            if (entityName != null) {
                try {
                    persister = persistenceContext.getSession().getFactory().getEntityPersister(entityName);
                } catch (Exception ignore) {
                }
            }
            if (persister == null) {
                throw new IllegalArgumentException("Non-entity object instance passed to evict : " + object);
            }
        }
    }
}

Example 17 with EntityPersister

use of org.hibernate.persister.entity.EntityPersister in project hibernate-orm by hibernate.

the class DefaultFlushEntityEventListener method isUpdateNecessary.

/**
	 * Performs all necessary checking to determine if an entity needs an SQL update
	 * to synchronize its state to the database. Modifies the event by side-effect!
	 * Note: this method is quite slow, avoid calling if possible!
	 */
protected final boolean isUpdateNecessary(FlushEntityEvent event) throws HibernateException {
    EntityPersister persister = event.getEntityEntry().getPersister();
    Status status = event.getEntityEntry().getStatus();
    if (!event.isDirtyCheckPossible()) {
        return true;
    } else {
        int[] dirtyProperties = event.getDirtyProperties();
        if (dirtyProperties != null && dirtyProperties.length != 0) {
            //TODO: suck into event class
            return true;
        } else {
            return hasDirtyCollections(event, persister, status);
        }
    }
}

Example 18 with EntityPersister

use of org.hibernate.persister.entity.EntityPersister in project hibernate-orm by hibernate.

the class DefaultFlushEntityEventListener method scheduleUpdate.

private boolean scheduleUpdate(final FlushEntityEvent event) {
    final EntityEntry entry = event.getEntityEntry();
    final EventSource session = event.getSession();
    final Object entity = event.getEntity();
    final Status status = entry.getStatus();
    final EntityPersister persister = entry.getPersister();
    final Object[] values = event.getPropertyValues();
    if (LOG.isTraceEnabled()) {
        if (status == Status.DELETED) {
            if (!persister.isMutable()) {
                LOG.tracev("Updating immutable, deleted entity: {0}", MessageHelper.infoString(persister, entry.getId(), session.getFactory()));
            } else if (!entry.isModifiableEntity()) {
                LOG.tracev("Updating non-modifiable, deleted entity: {0}", MessageHelper.infoString(persister, entry.getId(), session.getFactory()));
            } else {
                LOG.tracev("Updating deleted entity: ", MessageHelper.infoString(persister, entry.getId(), session.getFactory()));
            }
        } else {
            LOG.tracev("Updating entity: {0}", MessageHelper.infoString(persister, entry.getId(), session.getFactory()));
        }
    }
    final boolean intercepted = !entry.isBeingReplicated() && handleInterception(event);
    // increment the version number (if necessary)
    final Object nextVersion = getNextVersion(event);
    // if it was dirtied by a collection only
    int[] dirtyProperties = event.getDirtyProperties();
    if (event.isDirtyCheckPossible() && dirtyProperties == null) {
        if (!intercepted && !event.hasDirtyCollection()) {
            throw new AssertionFailure("dirty, but no dirty properties");
        }
        dirtyProperties = ArrayHelper.EMPTY_INT_ARRAY;
    }
    // check nullability but do not doAfterTransactionCompletion command execute
    // we'll use scheduled updates for that.
    new Nullability(session).checkNullability(values, persister, true);
    // schedule the update
    // note that we intentionally do _not_ pass in currentPersistentState!
    session.getActionQueue().addAction(new EntityUpdateAction(entry.getId(), values, dirtyProperties, event.hasDirtyCollection(), (status == Status.DELETED && !entry.isModifiableEntity() ? persister.getPropertyValues(entity) : entry.getLoadedState()), entry.getVersion(), nextVersion, entity, entry.getRowId(), persister, session));
    return intercepted;
}

Example 19 with EntityPersister

use of org.hibernate.persister.entity.EntityPersister in project hibernate-orm by hibernate.

the class DefaultFlushEntityEventListener method getNextVersion.

/**
	 * Convenience method to retrieve an entities next version value
	 */
private Object getNextVersion(FlushEntityEvent event) throws HibernateException {
    EntityEntry entry = event.getEntityEntry();
    EntityPersister persister = entry.getPersister();
    if (persister.isVersioned()) {
        Object[] values = event.getPropertyValues();
        if (entry.isBeingReplicated()) {
            return Versioning.getVersion(values, persister);
        } else {
            int[] dirtyProperties = event.getDirtyProperties();
            final boolean isVersionIncrementRequired = isVersionIncrementRequired(event, entry, persister, dirtyProperties);
            final Object nextVersion = isVersionIncrementRequired ? Versioning.increment(entry.getVersion(), persister.getVersionType(), event.getSession()) : //use the current version
            entry.getVersion();
            Versioning.setVersion(values, nextVersion, persister);
            return nextVersion;
        }
    } else {
        return null;
    }
}

Example 20 with EntityPersister

use of org.hibernate.persister.entity.EntityPersister in project hibernate-orm by hibernate.

the class DefaultFlushEntityEventListener method onFlushEntity.

/**
	 * Flushes a single entity's state to the database, by scheduling
	 * an update action, if necessary
	 */
public void onFlushEntity(FlushEntityEvent event) throws HibernateException {
    final Object entity = event.getEntity();
    final EntityEntry entry = event.getEntityEntry();
    final EventSource session = event.getSession();
    final EntityPersister persister = entry.getPersister();
    final Status status = entry.getStatus();
    final Type[] types = persister.getPropertyTypes();
    final boolean mightBeDirty = entry.requiresDirtyCheck(entity);
    final Object[] values = getValues(entity, entry, mightBeDirty, session);
    event.setPropertyValues(values);
    //TODO: avoid this for non-new instances where mightBeDirty==false
    boolean substitute = wrapCollections(session, persister, types, values);
    if (isUpdateNecessary(event, mightBeDirty)) {
        substitute = scheduleUpdate(event) || substitute;
    }
    if (status != Status.DELETED) {
        // now update the object .. has to be outside the main if block above (because of collections)
        if (substitute) {
            persister.setPropertyValues(entity, values);
        }
        // We don't want to touch collections reachable from a deleted object
        if (persister.hasCollections()) {
            new FlushVisitor(session, entity).processEntityPropertyValues(values, types);
        }
    }
}