CODEWITHSUNDEEP
mysqlsqlhibernatejpa
Hayi
Hayi

Reputation: 6256

@MapsId and two objects with the same identifier value associated with the session

I have @OneToOne relationship between my entities DirigeantsEntreprise and Fournisseur like this : 

@Entity
@Table(name = "dirigeants_entreprise", catalog = "ao")
public class DirigeantsEntreprise implements java.io.Serializable {

    private int idEntreprise;
    private Fournisseur fournisseur;
    private String nom;
    private String poste;
    ....

    @Id
    @Column(name = "id_entreprise", unique = true, nullable = false)
    public int getIdEntreprise() {
        return this.idEntreprise;
    }
    ...

    @MapsId
    @OneToOne
    @JoinColumn(name = "id_entreprise")
    public Fournisseur getFournisseur() {
        return this.fournisseur;
    }

but when i try to save object :

....
fournisseur_respository.save(fournisseur);
dirigeants_repo.save( new DirigeantsEntreprise( fournisseur,...,... ));

i got this exception :

javax.persistence.EntityExistsException: 
A different object with the same identifier value was already associated   with 
the session : [persistence.DirigeantsEntreprise#35]

PS : 35 is the ID of my fournisseur

I thinks the problem is with maps and i have two object of DirigeantsEntreprise and Fournisseur with same identifier 35.

How to resolve this problem ?

Upvotes: 1

Views: 513

Answers (1)

Hayi
Hayi

Reputation: 6256

We Have to flush the session by saveAndFlush() so it will be just one object with same identifier.

....
fournisseur_respository.saveAndFlush(fournisseur);
dirigeants_repo.save( new DirigeantsEntreprise( fournisseur,...,... ));

Upvotes: 1

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