2 Replies Latest reply on May 10, 2009 2:46 AM by Javier Lrr

    org.hibernate.MappingException: Could not determine type for

    Javier Lrr Newbie
      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