@Entity
@Table(name = "sfd", catalog = "rol1")
public class Sfd implements java.io.Serializable {

   private Integer id;
   private String numAgreement;
   private String nom;
   private Date dateAgreement;
   private Date dateRetraitAgreement;
   private boolean enabled;
   private Set<FormeJuridique> formeJuridiques=new HashSet<FormeJuridique>();
           
//Getters + setters +constructors

   @ManyToMany(fetch = FetchType.LAZY)
   @Cascade( { CascadeType.SAVE_UPDATE })
   @JoinTable(name = "sfd_forme_juridique", catalog = "econtrol1",
         joinColumns = { @JoinColumn(name = "idSfd", nullable = false) },
         inverseJoinColumns = { @JoinColumn(name = "idFormeJuridique", nullable = false) })
   public Set<FormeJuridique> getFormeJuridiques() {
      return this.formeJuridiques;
   }

   public void setFormeJuridiques(Set<FormeJuridique> formeJuridiques) {
      this.formeJuridiques = formeJuridiques;
   }
}

@Entity
@Table(name = "forme_juridique", catalog = "rol1")
public class FormeJuridique implements java.io.Serializable {
        private Integer id;
   private String libelle;
   private boolean enabled;
   private Set<Sfd> sfds;

//Getters + setters +constructors

   @ManyToMany(fetch = FetchType.LAZY,mappedBy = "formeJuridiques")
   public Set<Sfd> getSfds() {
      return this.sfds;
   }
   public void setSfds(Set<Sfd> sfds) {
      this.sfds = sfds;
   }
}

@Entity
@Table(name = "sfd_forme_juridique", catalog = "rol1")
public class SfdFormeJuridique implements java.io.Serializable {
   private SfdFormeJuridiqueId id;

   public SfdFormeJuridique() {
   }
   public SfdFormeJuridique(SfdFormeJuridiqueId id) {
      this.id = id;
   }
   @EmbeddedId
   @AttributeOverrides({
         @AttributeOverride(name = "idSfd", column = @Column(name = "idSfd", nullable = false)),
         @AttributeOverride(name = "idFormeJuridique", column = @Column(name = "idFormeJuridique", nullable = false)),
         @AttributeOverride(name = "dateDebut", column = @Column(name = "dateDebut", length = 10)),
         @AttributeOverride(name = "dateFin", column = @Column(name = "dateFin", length = 10)),
         @AttributeOverride(name = "enabled", column = @Column(name = "enabled")) })
   public SfdFormeJuridiqueId getId() {
      return this.id;
   }
   public void setId(SfdFormeJuridiqueId id) {
      this.id = id;
   }
}