org.hibernate.MappingException: Could not determine type for

[javierarg]

Hi!

I´m trying a very simple relationship example but I get:
org.hibernate.MappingException: Could not determine type for: java.util.Collection, at table: Departamento, for columns: [org.hibernate.mapping.Column(empleados)]

The two classes:

[Departamento.java]

package test2.entity;

import java.io.Serializable;
import java.util.Collection;

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.GeneratedValue;
import javax.persistence.OneToMany;
import javax.persistence.Version;
import org.hibernate.validator.Length;

@Entity
public class Departamento implements Serializable
{
    // seam-gen attributes (you should probably edit these)
    private Long id;
    private Integer version;
    private String name;
    private Collection<Empleado> empleados;

    // add additional entity attributes

    // seam-gen attribute getters/setters with annotations (you probably should edit)

    @Id @GeneratedValue
    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    @Version
    public Integer getVersion() {
        return version;
    }

    private void setVersion(Integer version) {
        this.version = version;
    }

    @Length(max = 20)
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @OneToMany(mappedBy="departamento")
     public void setEmpleados(Collection<Empleado> empleados) {
          this.empleados = empleados;
     }

     public Collection<Empleado> getEmpleados() {
          return empleados;
     }

}

[Empleado.java]

package test2.entity;

import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.GeneratedValue;
import javax.persistence.ManyToOne;
import javax.persistence.Version;
import org.hibernate.validator.Length;

@Entity
public class Empleado implements Serializable
{
    // seam-gen attributes (you should probably edit these)
    private Long id;
    private Integer version;
    private String name;
    private Departamento departamento;

    // add additional entity attributes

    // seam-gen attribute getters/setters with annotations (you probably should edit)

    @Id @GeneratedValue
    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    @Version
    public Integer getVersion() {
        return version;
    }

    private void setVersion(Integer version) {
        this.version = version;
    }

    @Length(max = 20)
    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @ManyToOne
     public void setDepartamento(Departamento departamento) {
          this.departamento = departamento;
     }

     public Departamento getDepartamento() {
          return departamento;
     }

}

Made by seam-gen using: jboss-seam-2.1.1.GA and jboss-5.0.1.GA.

What´s wrong in the code?
Thanks in advance
Javier

[swd847]

You have to put the hibernate annotations on the getters not the setters.

[javierarg]

works! Thanks!