mappedBy reference an unknown target entity property

[svanbegin01]

I would like to define a ManyToMany association between
2 Entities A and C.
As an additional property is required in the JoinTable, I tried
to define 2 OneToMany associations involving a new entity B.

Each time I deploy on jboss-4.0.5.GA, I get this error:
org.hibernate.AnnotationException :
mappedBy reference an unknown target entity property :
com.acme.dev001.ejb.B.a in com.acme.dev001.ejb.A.bs

What's wrong in the code that follows ?


--------------- A -----------------------
@Entity
public class A implements java.io.Serializable {

@Id
private short aNo;

@OneToMany(
targetEntity = com.acme.dev001.ejb.B.class,
cascade = CascadeType.ALL,
fetch = FetchType.EAGER,
mappedBy = "a"
)
private Collection< B> bs = new ArrayList< B>();

--------------- B -----------------------
@IdClass(com.acme.dev001.ejb.BKey.class)
@Entity
public class B implements java.io.Serializable {

@Id
@ManyToOne(targetEntity=com.acme.dev001.ejb.A.class)
@JoinColumn(name="aNo", nullable=false, updatable=false, insertable=false)
private A a;

@Id
@ManyToOne(targetEntity=com.acme.dev001.ejb.C.class)
@JoinColumn(name="cNo", nullable=false, updatable=false, insertable=false)
protected C c;

--------------- C -----------------------
@Entity
public class C implements java.io.Serializable {

@Id
private short cNo;

@OneToMany(
targetEntity = com.acme.dev001.ejb.B.class,
cascade = CascadeType.ALL,
fetch = FetchType.EAGER,
mappedBy = "c"
)
private Collection< B> bs = new HashSet< B>();
--------------------------------------------

Thanks,
Serge

[svanbegin01]

This problem was solved by replacing @Id annotations in Entity B
with @EmbeddedId and @Embeddable constructs

[smix007]

Hello,
you use @idClass. Whereas in my code I use @Embeddable and @EmbeddedId I thus seek a solution with my problem of joint for the following code:

@Embeddable
public class TermProjPK implements Serializable {
private String auiw;
@Column(name = "AUIS", nullable = false)
private String auis;

public class TermProj implements Serializable {
@EmbeddedId
 private TermProjPK termProjPK;
//jointure avec la table TermSource
 @ManyToOne
 @JoinColumn (name = "AUIW")
 private TermSource auiw;
 public TermSource getAuiw() {
 return auiw;
 }

 public void setAuiw(TermSource auiw) {
 this.auiw = auiw;
 }


 //jointure avec la table SnomedInter
 @ManyToOne
 @JoinColumn (name = "AUIS")
 private SnomedInter auis;
 public SnomedInter getAuis() {
 return auis;
 }

 public void setAuis(SnomedInter auis) {
 this.auis = auis;
 }
@Column(name = "MODIF")
 private String modif;

 @Column(name = "SRC", nullable = false)
 private String src;

public class TermSource implements Serializable {
 @Id
 @Column(name = "AUIW", nullable = false)
 private String auiw;
@OneToMany(mappedBy="AUIW")
 private Collection<TermProj> termProjs;

 public Collection<TermProj> getTermProjs() {
 return termProjs;
 }

 public void setTermProjs(Collection<TermProj> termProjs) {
 this.termProjs = termProjs;
 }

public class SnomedInter implements Serializable {
@Id
 @Column(name = "AUIS", nullable = false)
 private String auis;
@OneToMany(mappedBy="AUIS")
 private Collection<TermProj> termProjs;

 public Collection<TermProj> getTermProjs() {
 return termProjs;
 }

 public void setTermProjs(Collection<TermProj> termProjs) {
 this.termProjs = termProjs;
 }

I have the error message according to

org.hibernate.AnnotationException: mappedBy reference an unknown property: ejb.entity.TermProj.AUIS in ejb.entity.SnomedInter.AUIS

,
thank you in advance