/** * Initialize the role of the collection. * * @param collection The collection to be updated by reachability. * @param type The type of the collection. * @param entity The owner of the collection. * @param session The session from which this request originates */ public static void processReachableCollection( PersistentCollection collection, CollectionType type, Object entity, SessionImplementor session) { collection.setOwner(entity); CollectionEntry ce = session.getPersistenceContext().getCollectionEntry(collection); if (ce == null) { // refer to comment in StatefulPersistenceContext.addCollection() throw new HibernateException( "Found two representations of same collection: " + type.getRole()); } // The CollectionEntry.isReached() stuff is just to detect any silly users // who set up circular or shared references between/to collections. if (ce.isReached()) { // We've been here before throw new HibernateException("Found shared references to a collection: " + type.getRole()); } ce.setReached(true); SessionFactoryImplementor factory = session.getFactory(); CollectionPersister persister = factory.getCollectionPersister(type.getRole()); ce.setCurrentPersister(persister); ce.setCurrentKey( type.getKeyOfOwner(entity, session)); // TODO: better to pass the id in as an argument? if (LOG.isDebugEnabled()) { if (collection.wasInitialized()) LOG.debugf( "Collection found: %s, was: %s (initialized)", MessageHelper.collectionInfoString(persister, ce.getCurrentKey(), factory), MessageHelper.collectionInfoString( ce.getLoadedPersister(), ce.getLoadedKey(), factory)); else LOG.debugf( "Collection found: %s, was: %s (uninitialized)", MessageHelper.collectionInfoString(persister, ce.getCurrentKey(), factory), MessageHelper.collectionInfoString( ce.getLoadedPersister(), ce.getLoadedKey(), factory)); } prepareCollectionForUpdate(collection, ce, factory); }