[hibernate] OneToOne ownee has id = 0

[Alessandro Ilardo]

Hi there,
on my OneToOne relation I'm having a problem getting the ownee's ID, which on a stamentent on a client always results = 0

logger.debug("[update] Current role id: "+user.getRole().getId());

= 0

belowe the classes

@OneToOne(cascade = CascadeType.ALL)
    @PrimaryKeyJoinColumn
    @OnDelete(action=OnDeleteAction.CASCADE)
    public Role getRole() {
        return _role;
    }
    
    public void setRole(Role _role) {
        this._role = _role;
    }

@Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Column()
    public long getId() {
        return id;
    }
    public void setId(long id) {
        this.id = id;
    }

why am I getting that 0??

Thanks in advance