Referencing Another SQLContainer, one to many

General
1

The following methods seems to indicate that you can obtain a one to one related item.
But what about one to many? Is that possible or do we need to use the JPA container?

public boolean setReferencedItem(Object itemId, Object refdItemId, SQLContainer refdCont)
public Object getReferencedItemId(Object itemId, SQLContainer refdCont)
public Item getReferencedItem(Object itemId, SQLContainer refdCont)