could not determine type for Set

itdelany · **Joined:** Mon Aug 27, 2007 9:36 am **Posts:** 5

Hi All :)

I am using Jboss 4.0.5, with integrated Hibernate 3 developing an EJB3 project.

When I try to deploy it I get this error message:

Code:

ObjectName: persistence.units:ear=usermgmt.ear,jar=usermgmt-server.jar,unitName=UserMgmt
  State: FAILED
  Reason: javax.persistence.PersistenceException: org.hibernate.MappingException: Could not determine type for: java.util.Set, for columns: [org.hibernate.mapping.Column(nivelSistema)]
  I Depend On:
    jboss.jca:service=DataSourceBinding,name=UserMgmtDS

This is the way I define "nivelSistema" attribute:

Code:

   @OneToMany(fetch=FetchType.EAGER,cascade=CascadeType.MERGE)
   public Set<NivelSistema> getNiveles()
   {
      if(this.nivelSistema == null)
      {
         this.nivelSistema = new HashSet<NivelSistema>();
      }
      return nivelSistema;
   }

What am I missing? Thanks and sorry if this is really answered, I searched here, the faqs, and internet with no results

hutorny · **Joined:** Mon Aug 27, 2007 8:10 am **Posts:** 37

itdelany wrote:

Hi All :)

What am I missing? Thanks and sorry if this is really answered, I searched here, the faqs, and internet with no results

How have you defined your NivelSistema?

Is it an entity?

itdelany · **Joined:** Mon Aug 27, 2007 9:36 am **Posts:** 5

hutorny wrote:

itdelany wrote:

Hi All :)

What am I missing? Thanks and sorry if this is really answered, I searched here, the faqs, and internet with no results

How have you defined your NivelSistema?

Is it an entity?

Hi, Thanks for your answer, yes it is an entity:

Code:

[...]
@Entity
@Table(name="NivelSistema")
public class NivelSistema implements Serializable {
[...]

(It is not the whole class obviously)

Thanks

somu_ngm1 · **Joined:** Wed Jun 20, 2007 1:53 am **Posts:** 75

paste your mapping documents here...

hutorny · **Joined:** Mon Aug 27, 2007 8:10 am **Posts:** 37

itdelany wrote:

Hi, Thanks for your answer, yes it is an entity:

Code:

[...]
@Entity
@Table(name="NivelSistema")
public class NivelSistema implements Serializable {
[...]

(It is not the whole class obviously)

Thanks

May be Set is not a good bag, we use Collection and it works for us.

itdelany · **Joined:** Mon Aug 27, 2007 9:36 am **Posts:** 5

Hi hutomy, My problem is resolved now, I was specifying the wrong method.
Thanks for your help! +1credit for your attention