@Entity
@Proxy(lazy = false)
public static class User {
	@Id
	Long id;
	String name;

	@ManyToOne(fetch = FetchType.LAZY)
	@JoinColumn(name = "team_id")
	UserGroup team;
	
}

@Entity
@Proxy(lazy = false)
public static class UserGroup {
	@Id
	Long id;

	String name;
}
	

User user = session.getReference( User.class, 1 );

user.getName();