Cascade Type problem

[masse Satriana]

Hi All,
Is there any clue how using CascadeType in bidirectional relationship?
for example :
I have two tables 1 is Customers and second is FormOrder ( owner of relationship)

    
public class FormOrder implements Serializable {
    private static final long serialVersionUID = 1L;
    @EmbeddedId
    protected FormOrderPK spformPK;
    @Column(name = "SPREFERENCE")
    private String spreference;
    @Column(name = "ISVERIF")
    private Boolean isverif;
    @Column(name = "DESCRIPTION")
    private String description;
    @JoinColumn(name = "CUSTOMERID", referencedColumnName = "CUSTOMERID")
    @ManyToOne(cascade=CascadeType.PERSIST)  // --------->this is how I set
    private Customers customerid;
 / -------getter & setter
}
public class Customers implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    @Column(name = "CUSTOMERID", nullable = false)
    private Integer customerid;
    @Column(name = "NAME")
    private String name;
    @Column(name = "ADDRESS")
    private String address;
    @Column(name = "CITY")
    private String city;
    @OneToMany(mappedBy = "customerid")
    private Collection<FormOrder> spformCollection;
    @OneToMany(mappedBy = "customerid")
    private Collection<Transaksi> transaksiCollection;
    @OneToMany(mappedBy = "koordinatorid")
    private Collection<Customers> customersCollection;
    @JoinColumn(name = "KOORDINATORID", referencedColumnName = "CUSTOMERID")
    @ManyToOne
    private Customers koordinatorid;
// setter & getter code
}
 

The problem is when I insert new record in FormOrder which also specify new Customer, this code should be working. ( since this is not default JPA to persist related entity , so that we are using CascadeType.persist)

    
Customers c=new Customers("Aries","21 Jump Street","Indonesia");
FormOrder fo=new FormOrder();
fo.setCustomers(c);
em.persist(fo);

The fact is annoying me since there are a message "javax.persistence.EntityExistsException:
Exception Description: Cannot persist detached object"

Any clue would be greatly accepted.

Thanks in advance.

[masse Satriana]

Hi All,
Case is closed.
This all is my failure not seeing duplicated data on table FormOrder.
All code in my previous post is working fine.

Regards,
Masse Satriana