Java EntityPersister.setIdentifier方法代码示例

import org.hibernate.persister.entity.EntityPersister; //导入方法依赖的package包/类
@Override
public Serializable insert(String entityName, Object entity) {
	errorIfClosed();
	EntityPersister persister = getEntityPersister( entityName, entity );
	Serializable id = persister.getIdentifierGenerator().generate( this, entity );
	Object[] state = persister.getPropertyValues( entity );
	if ( persister.isVersioned() ) {
		boolean substitute = Versioning.seedVersion(
				state, persister.getVersionProperty(), persister.getVersionType(), this
		);
		if ( substitute ) {
			persister.setPropertyValues( entity, state );
		}
	}
	if ( id == IdentifierGeneratorHelper.POST_INSERT_INDICATOR ) {
		id = persister.insert(state, entity, this);
	}
	else {
		persister.insert(id, state, entity, this);
	}
	persister.setIdentifier( entity, id, this );
	return id;
}
 

import org.hibernate.persister.entity.EntityPersister; //导入方法依赖的package包/类
/**
 * Hibernate 3.1 implementation of ID transferral.
 */
@Override
protected void entityIsTransient(MergeEvent event, Map copyCache) {
	super.entityIsTransient(event, copyCache);
	SessionImplementor session = event.getSession();
	EntityPersister persister = session.getEntityPersister(event.getEntityName(), event.getEntity());
	// Extract id from merged copy (which is currently registered with Session).
	Serializable id = persister.getIdentifier(event.getResult(), session.getEntityMode());
	// Set id on original object (which remains detached).
	persister.setIdentifier(event.getOriginal(), id, session.getEntityMode());
}
 

import org.hibernate.persister.entity.EntityPersister; //导入方法依赖的package包/类
/**
 * If the user specified an id, assign it to the instance and use that, 
 * otherwise use the id already assigned to the instance
 */
protected Serializable getUpdateId(
		Object entity,
		EntityPersister persister,
		Serializable requestedId,
		SessionImplementor session) throws HibernateException {
	if ( requestedId == null ) {
		return super.getUpdateId( entity, persister, requestedId, session );
	}
	else {
		persister.setIdentifier( entity, requestedId, session );
		return requestedId;
	}
}
 

import org.hibernate.persister.entity.EntityPersister; //导入方法依赖的package包/类
/**
 * Performs the load of an entity.
 *
 * @param event The initiating load request event
 * @param persister The persister corresponding to the entity to be loaded
 * @param keyToLoad The key of the entity to be loaded
 * @param options The defined load options
 *
 * @return The loaded entity.
 *
 * @throws HibernateException
 */
protected Object load(
		final LoadEvent event,
		final EntityPersister persister,
		final EntityKey keyToLoad,
		final LoadEventListener.LoadType options) {

	if ( event.getInstanceToLoad() != null ) {
		if ( event.getSession().getPersistenceContext().getEntry( event.getInstanceToLoad() ) != null ) {
			throw new PersistentObjectException(
					"attempted to load into an instance that was already associated with the session: " +
							MessageHelper.infoString(
									persister,
									event.getEntityId(),
									event.getSession().getFactory()
							)
			);
		}
		persister.setIdentifier( event.getInstanceToLoad(), event.getEntityId(), event.getSession() );
	}

	Object entity = doLoad( event, persister, keyToLoad, options );

	boolean isOptionalInstance = event.getInstanceToLoad() != null;

	if ( !options.isAllowNulls() || isOptionalInstance ) {
		if ( entity == null ) {
			event.getSession()
					.getFactory()
					.getEntityNotFoundDelegate()
					.handleEntityNotFound( event.getEntityClassName(), event.getEntityId() );
		}
	}

	if ( isOptionalInstance && entity != event.getInstanceToLoad() ) {
		throw new NonUniqueObjectException( event.getEntityId(), event.getEntityClassName() );
	}

	return entity;
}
 

import org.hibernate.persister.entity.EntityPersister; //导入方法依赖的package包/类
protected void entityIsTransient(MergeEvent event, Map copyCache) {

		LOG.trace( "Merging transient instance" );

		final Object entity = event.getEntity();
		final EventSource source = event.getSession();

		final String entityName = event.getEntityName();
		final EntityPersister persister = source.getEntityPersister( entityName, entity );

		final Serializable id = persister.hasIdentifierProperty() ?
				persister.getIdentifier( entity, source ) :
				null;
		if ( copyCache.containsKey( entity ) ) {
			persister.setIdentifier( copyCache.get( entity ), id, source );
		}
		else {
			( (MergeContext) copyCache ).put( entity, source.instantiate( persister, id ), true ); //before cascade!
		}
		final Object copy = copyCache.get( entity );

		// cascade first, so that all unsaved objects get their
		// copy created before we actually copy
		//cascadeOnMerge(event, persister, entity, copyCache, Cascades.CASCADE_BEFORE_MERGE);
		super.cascadeBeforeSave( source, persister, entity, copyCache );
		copyValues( persister, entity, copy, source, copyCache, ForeignKeyDirection.FOREIGN_KEY_FROM_PARENT );

		saveTransientEntity( copy, entityName, event.getRequestedId(), source, copyCache );

		// cascade first, so that all unsaved objects get their
		// copy created before we actually copy
		super.cascadeAfterSave( source, persister, entity, copyCache );
		copyValues( persister, entity, copy, source, copyCache, ForeignKeyDirection.FOREIGN_KEY_TO_PARENT );

		event.setResult( copy );
	}
 

import org.hibernate.persister.entity.EntityPersister; //导入方法依赖的package包/类
/**
 * Prepares the save call by checking the session caches for a pre-existing
 * entity and performing any lifecycle callbacks.
 *
 * @param entity The entity to be saved.
 * @param id The id by which to save the entity.
 * @param persister The entity's persister instance.
 * @param useIdentityColumn Is an identity column being used?
 * @param anything Generally cascade-specific information.
 * @param source The session from which the event originated.
 * @param requiresImmediateIdAccess does the event context require
 * access to the identifier immediately after execution of this method (if
 * not, post-insert style id generators may be postponed if we are outside
 * a transaction).
 *
 * @return The id used to save the entity; may be null depending on the
 *         type of id generator used and the requiresImmediateIdAccess value
 */
protected Serializable performSave(
		Object entity,
		Serializable id,
		EntityPersister persister,
		boolean useIdentityColumn,
		Object anything,
		EventSource source,
		boolean requiresImmediateIdAccess) {

	if ( LOG.isTraceEnabled() ) {
		LOG.tracev( "Saving {0}", MessageHelper.infoString( persister, id, source.getFactory() ) );
	}

	final EntityKey key;
	if ( !useIdentityColumn ) {
		key = source.generateEntityKey( id, persister );
		Object old = source.getPersistenceContext().getEntity( key );
		if ( old != null ) {
			if ( source.getPersistenceContext().getEntry( old ).getStatus() == Status.DELETED ) {
				source.forceFlush( source.getPersistenceContext().getEntry( old ) );
			}
			else {
				throw new NonUniqueObjectException( id, persister.getEntityName() );
			}
		}
		persister.setIdentifier( entity, id, source );
	}
	else {
		key = null;
	}

	if ( invokeSaveLifecycle( entity, persister, source ) ) {
		return id; //EARLY EXIT
	}

	return performSaveOrReplicate(
			entity,
			key,
			persister,
			useIdentityColumn,
			anything,
			source,
			requiresImmediateIdAccess
	);
}
 

import org.hibernate.persister.entity.EntityPersister; //导入方法依赖的package包/类
@Override
public void execute() throws HibernateException {
	nullifyTransientReferencesIfNotAlready();

	final EntityPersister persister = getPersister();
	final SessionImplementor session = getSession();
	final Object instance = getInstance();

	final boolean veto = preInsert();

	// Don't need to lock the cache here, since if someone
	// else inserted the same pk first, the insert would fail

	if ( !veto ) {
		generatedId = persister.insert( getState(), instance, session );
		if ( persister.hasInsertGeneratedProperties() ) {
			persister.processInsertGeneratedProperties( generatedId, instance, getState(), session );
		}
		//need to do that here rather than in the save event listener to let
		//the post insert events to have a id-filled entity when IDENTITY is used (EJB3)
		persister.setIdentifier( instance, generatedId, session );
		session.getPersistenceContext().registerInsertedKey( getPersister(), generatedId );
		entityKey = session.generateEntityKey( generatedId, persister );
		session.getPersistenceContext().checkUniqueness( entityKey, getInstance() );
	}


	//TODO: this bit actually has to be called after all cascades!
	//      but since identity insert is called *synchronously*,
	//      instead of asynchronously as other actions, it isn't
	/*if ( persister.hasCache() && !persister.isCacheInvalidationRequired() ) {
		cacheEntry = new CacheEntry(object, persister, session);
		persister.getCache().insert(generatedId, cacheEntry);
	}*/

	postInsert();

	if ( session.getFactory().getStatistics().isStatisticsEnabled() && !veto ) {
		session.getFactory().getStatisticsImplementor().insertEntity( getPersister().getEntityName() );
	}

	markExecuted();
}