The main issue is with the generated ID`s - I cannot get a unidirectional
OneToOne relationship working where the id columns of the two tables is
identical. If I remove the @GeneratedValue annotation from the child table I
can get the persistence to work but with differing id fields. I am using
MySQL with Primary Key (Auto Increment) on the id fields ...
Does anyone have any ideas ?
In the User class
@Entity
@Table(name="user")
//@SequenceGenerator(name = "CUSTOMER_SEQUENCE", sequenceName =
"CUSTOMER_SEQUENCE", allocationSize = 1, initialValue = 0)
public class User implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private int id;
@OneToOne(cascade={CascadeType.ALL})
@PrimaryKeyJoinColumn(name="id", referencedColumnName="id")
//@JoinColumn(name="id", referencedColumnName = "id")
private Usergroup usergroup;
In the usergroup
@Table(name="usergroup")
public class Usergroup implements Serializable {
private static final long serialVersionUID = 1L;
@Id
// @GeneratedValue(strategy=GenerationType.IDENTITY)
private int id;
......
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