Java CollectionPersister.getRole方法代码示例

import org.hibernate.persister.collection.CollectionPersister; //导入方法依赖的package包/类
public CollectionKey(CollectionPersister persister, Serializable key) {
	this(
			persister.getRole(),
			key,
			persister.getKeyType(),
			persister.getOwnerEntityPersister().getEntityMetamodel().getEntityMode(),
			persister.getFactory()
	);
}
 

import org.hibernate.persister.collection.CollectionPersister; //导入方法依赖的package包/类
private CacheKey buildCacheKey(Serializable ownerIdentifier, CollectionPersister p) {
	return new CacheKey(
			ownerIdentifier,
			p.getKeyType(),
			p.getRole(),
			null,                        // have to assume non tenancy
			sessionFactory
	);
}
 

import org.hibernate.persister.collection.CollectionPersister; //导入方法依赖的package包/类
protected CollectionAction(
		final CollectionPersister persister,
		final PersistentCollection collection, 
		final Serializable key, 
		final SessionImplementor session) {
	this.persister = persister;
	this.session = session;
	this.key = key;
	this.collectionRole = persister.getRole();
	this.collection = collection;
}
 

import org.hibernate.persister.collection.CollectionPersister; //导入方法依赖的package包/类
private static void processDereferencedCollection(PersistentCollection coll, SessionImplementor session) {
	final PersistenceContext persistenceContext = session.getPersistenceContext();
	final CollectionEntry entry = persistenceContext.getCollectionEntry( coll );
	final CollectionPersister loadedPersister = entry.getLoadedPersister();

	if ( loadedPersister != null && LOG.isDebugEnabled() ) {
		LOG.debugf(
				"Collection dereferenced: %s",
				MessageHelper.collectionInfoString( loadedPersister, 
						coll, entry.getLoadedKey(), session
				)
		);
	}

	// do a check
	final boolean hasOrphanDelete = loadedPersister != null && loadedPersister.hasOrphanDelete();
	if ( hasOrphanDelete ) {
		Serializable ownerId = loadedPersister.getOwnerEntityPersister().getIdentifier( coll.getOwner(), session );
		if ( ownerId == null ) {
			// the owning entity may have been deleted and its identifier unset due to
			// identifier-rollback; in which case, try to look up its identifier from
			// the persistence context
			if ( session.getFactory().getSettings().isIdentifierRollbackEnabled() ) {
				final EntityEntry ownerEntry = persistenceContext.getEntry( coll.getOwner() );
				if ( ownerEntry != null ) {
					ownerId = ownerEntry.getId();
				}
			}
			if ( ownerId == null ) {
				throw new AssertionFailure( "Unable to determine collection owner identifier for orphan-delete processing" );
			}
		}
		final EntityKey key = session.generateEntityKey( ownerId, loadedPersister.getOwnerEntityPersister() );
		final Object owner = persistenceContext.getEntity( key );
		if ( owner == null ) {
			throw new AssertionFailure(
					"collection owner not associated with session: " +
					loadedPersister.getRole()
			);
		}
		final EntityEntry e = persistenceContext.getEntry( owner );
		//only collections belonging to deleted entities are allowed to be dereferenced in the case of orphan delete
		if ( e != null && e.getStatus() != Status.DELETED && e.getStatus() != Status.GONE ) {
			throw new HibernateException(
					"A collection with cascade=\"all-delete-orphan\" was no longer referenced by the owning entity instance: " +
					loadedPersister.getRole()
			);
		}
	}

	// do the work
	entry.setCurrentPersister( null );
	entry.setCurrentKey( null );
	prepareCollectionForUpdate( coll, entry, session.getFactory() );

}
 

import org.hibernate.persister.collection.CollectionPersister; //导入方法依赖的package包/类
/**
 * 1. record the collection role that this collection is referenced by
 * 2. decide if the collection needs deleting/creating/updating (but
 *	don't actually schedule the action yet)
 */
@SuppressWarnings( {"JavaDoc"})
private static void prepareCollectionForUpdate(
		PersistentCollection collection,
		CollectionEntry entry,
		SessionFactoryImplementor factory) {
	if ( entry.isProcessed() ) {
		throw new AssertionFailure( "collection was processed twice by flush()" );
	}
	entry.setProcessed( true );

	final CollectionPersister loadedPersister = entry.getLoadedPersister();
	final CollectionPersister currentPersister = entry.getCurrentPersister();
	if ( loadedPersister != null || currentPersister != null ) {
		// it is or was referenced _somewhere_

		// if either its role changed, or its key changed
		final boolean ownerChanged = loadedPersister != currentPersister
				|| !currentPersister.getKeyType().isEqual( entry.getLoadedKey(), entry.getCurrentKey(), factory );

		if ( ownerChanged ) {
			// do a check
			final boolean orphanDeleteAndRoleChanged =
					loadedPersister != null && currentPersister != null && loadedPersister.hasOrphanDelete();

			if (orphanDeleteAndRoleChanged) {
				throw new HibernateException(
						"Don't change the reference to a collection with delete-orphan enabled : "
								+ loadedPersister.getRole()
				);
			}

			// do the work
			if ( currentPersister != null ) {
				entry.setDorecreate( true );
			}

			if ( loadedPersister != null ) {
				// we will need to remove ye olde entries
				entry.setDoremove( true );
				if ( entry.isDorecreate() ) {
					LOG.trace( "Forcing collection initialization" );
					collection.forceInitialization();
				}
			}
		}
		else if ( collection.isDirty() ) {
			// the collection's elements have changed
			entry.setDoupdate( true );
		}
	}
}