b]Hibernate version:[/b] 3.x

Name and version of the database you are using: postgres8.0


Trying to implement bidirectional many-to-many mapping using hibernate annotations, without success.
My code:

@Entity
public class Keyword {
// stuff deleted
/**
* @return Returns the goterms.
*/
@ManyToMany(targetEntity="controlvocab.Goterm")
@Cascade(CascadeType.SAVE_UPDATE)
@AssociationTable(table=@Table(name="keyword2go"),
joinColumns={@JoinColumn(name="keyword_id")},
inverseJoinColumns={@JoinColumn(name="go_id")} )
public Set<Goterm> getGoterms() {
return goterms;
}
// ...
}


@Entity
public class Goterm {
// ...
/**
* @return Returns the keywords.
*/
@ManyToMany(mappedBy="goterms")
public Set<Keyword> getKeywords() {
return keywords;
}
// ...
}

The problem: I can add/delete Goterms from a Keyword object as expected. However, doing it the other way round, ie add/delete Keywords from a Goterm seems to work, but in fact the changes are not persisted, ie. the association table keyword2go is not updated.

hey I have the same pb !!!

do you have find a soluce?


thanks

sadly, no. Maybe it's very obvious? I am puzzled, because I've mapped bi-directional n,m mappings successfully using the xml syntax... I've also tried changing the cascade type, removing it altogether, and I still get the same behaviour.