Hibernate - Foreign keys instead of Entities

Question

Currently, Hibernate allows me to load objects defined by *-to-one relationships directly with

entity1.getEntity2()

Is it possible to get

Answer 1

Yes, you can do that. You just need to make it clear for hibernate which one is the mapping that it's supposed to maintain, like so:

@Column(name="message_key", updatable=false, insertable=false)
private Long message_fk;