I have a table which name is "Pstn" and there is User table. Users does not have to use Pstn table. But some users can use it. So if a pstn has an user we want to see who is. How can i configure hibernate annotations?
pstnBbkTable.setVisibleColumns(new Object[]{"pstn", "bbk", "user.firstName", "inReserve", "creationDate", "expireDate", "button"});
java.lang.IllegalArgumentException: Ids must exist in the Container or as a generated column, missing id: user.firstName at com.vaadin.ui.Table.setVisibleColumns(Table.java:691)
User table:
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "user_Id")
private long userId;
@Column(name = "username", nullable = false)
private String username;
@Column(name = "password", nullable = false)
private String password;
@Column(name = "first_name", nullable = false)
private String firstName;
@Column(name = "last_name", nullable = false)
private String lastName;
Pstn Table:
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "pstn_Id")
private long pstnId;
@Column(name = "pstn")
private String pstn;
@Column(name = "bbk")
private String bbk;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "user_Id")
private User user;
********************* UPDATED SOLUTION ****************
I replaced pstn bean field like above. I think it occured because of FetchType.EAGER-Lazy..
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "user_Id")
private User owner;
