Java Code Examples for org.hibernate.persister.entity.EntityPersister#hasIdentifierProperty()

/**
 * Renders an entity to a string.
 *
 * @param entityName the entity name
 * @param entity an actual entity object, not a proxy!
 *
 * @return the entity rendered to a string
 */
public String toString(String entityName, Object entity) throws HibernateException {
	EntityPersister entityPersister = factory.getEntityPersister( entityName );

	if ( entityPersister == null || !entityPersister.isInstance( entity ) ) {
		return entity.getClass().getName();
	}

	Map<String, String> result = new HashMap<String, String>();

	if ( entityPersister.hasIdentifierProperty() ) {
		result.put(
				entityPersister.getIdentifierPropertyName(),
				entityPersister.getIdentifierType().toLoggableString(
						entityPersister.getIdentifier( entity ),
						factory
				)
		);
	}

	Type[] types = entityPersister.getPropertyTypes();
	String[] names = entityPersister.getPropertyNames();
	Object[] values = entityPersister.getPropertyValues( entity );
	for ( int i = 0; i < types.length; i++ ) {
		if ( !names[i].startsWith( "_" ) ) {
			String strValue = values[i] == LazyPropertyInitializer.UNFETCHED_PROPERTY ?
					values[i].toString() :
					types[i].toLoggableString( values[i], factory );
			result.put( names[i], strValue );
		}
	}
	return entityName + result.toString();
}
 

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.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.TO_PARENT );

		event.setResult( copy );
	}
 

/**
 * Generate a loggable representation of an instance of the value mapped by this type.
 *
 * @param value The instance to be logged.
 * @param factory The session factory.
 *
 * @return The loggable string.
 *
 * @throws HibernateException Generally some form of resolution problem.
 */
@Override
public String toLoggableString(Object value, SessionFactoryImplementor factory) {
	if ( value == null ) {
		return "null";
	}

	final EntityPersister persister = getAssociatedEntityPersister( factory );
	if ( !persister.getEntityTuplizer().isInstance( value ) ) {
		// it should be the id type...
		if ( persister.getIdentifierType().getReturnedClass().isInstance( value ) ) {
			return associatedEntityName + "#" + value;
		}
	}

	final StringBuilder result = new StringBuilder().append( associatedEntityName );

	if ( persister.hasIdentifierProperty() ) {
		final Serializable id;
		if ( value instanceof HibernateProxy ) {
			HibernateProxy proxy = (HibernateProxy) value;
			id = proxy.getHibernateLazyInitializer().getIdentifier();
		}
		else {
			id = persister.getIdentifier( value );
		}

		result.append( '#' )
				.append( persister.getIdentifierType().toLoggableString( id, factory ) );
	}

	return result.toString();
}
 

protected CompletionStage<Void> entityIsTransient(MergeEvent event, MergeContext copyCache) {

		LOG.trace( "Merging transient instance" );

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

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

		final Serializable id = persister.hasIdentifierProperty()
				? persister.getIdentifier( entity, session )
				: null;

		final Object copy;
		final Object existingCopy = copyCache.get( entity );
		if ( existingCopy != null ) {
			persister.setIdentifier( copyCache.get( entity ), id, session );
			copy = existingCopy;
		}
		else {
			copy = session.instantiate( persister, id );

			//before cascade!
			copyCache.put( entity, copy, true );
		}

		// cascade first, so that all unsaved objects get their
		// copy created before we actually copy
		//cascadeOnMerge(event, persister, entity, copyCache, Cascades.CASCADE_BEFORE_MERGE);
		return super.cascadeBeforeSave( session, persister, entity, copyCache )
				.thenAccept( v -> copyValues( persister, entity, copy, session, copyCache, ForeignKeyDirection.FROM_PARENT ) )
				.thenCompose( v -> saveTransientEntity( copy, entityName, event.getRequestedId(), session, copyCache ) )
				.thenCompose( v -> super.cascadeAfterSave( session, persister, entity, copyCache ) )
				.thenAccept( v -> {
					copyValues(persister, entity, copy, session, copyCache, ForeignKeyDirection.TO_PARENT);

					event.setResult(copy);

					if (copy instanceof PersistentAttributeInterceptable) {
						final PersistentAttributeInterceptable interceptable = (PersistentAttributeInterceptable) copy;
						final PersistentAttributeInterceptor interceptor = interceptable.$$_hibernate_getInterceptor();
						if (interceptor == null) {
							persister.getBytecodeEnhancementMetadata().injectInterceptor(copy, id, session);
						}
					}
				});
	}
 

protected void entityIsTransient(MergeEvent event, Map copyCache) {
	
	log.trace("merging transient instance");
	
	final Object entity = event.getEntity();
	final EventSource source = event.getSession();

	final EntityPersister persister = source.getEntityPersister( event.getEntityName(), entity );
	final String entityName = persister.getEntityName();
	
	final Serializable id = persister.hasIdentifierProperty() ?
			persister.getIdentifier( entity, source.getEntityMode() ) :
	        null;
	
	final Object copy = persister.instantiate( id, source.getEntityMode() );  //TODO: should this be Session.instantiate(Persister, ...)?
	copyCache.put(entity, copy); //before cascade!
	
	// 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);
	
	//this bit is only *really* absolutely necessary for handling 
	//requestedId, but is also good if we merge multiple object 
	//graphs, since it helps ensure uniqueness
	final Serializable requestedId = event.getRequestedId();
	if (requestedId==null) {
		saveWithGeneratedId( copy, entityName, copyCache, source, false );
	}
	else {
		saveWithRequestedId( copy, requestedId, entityName, copyCache, source );
	}
	
	// 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);

}