if ( !( property.getPersistentClass() instanceof SingleTableSubclass ) ) {
			//single table should not be forced to null
			if ( !property.isComposite() ) { //composite should not add not-null on all columns
				@SuppressWarnings("unchecked")
				Iterator<Column> iter = property.getColumnIterator();
				while ( iter.hasNext() ) {
					iter.next().setNullable( false );

				}
			}
		}