@Entity
@Table(name = "MyTable")
public class  myClass implements Serializable {

        @Id
   @Column(name = "Id", nullable = false)
   private int id;

        @Column(name="enumFieldId")
        private MyEnumType enumtype;


  /* getters & setters */
}

public enum MyEnumType {
 
   ENUM_1 (1),
   ENUM_2 (2);

   private int value;

   private MyEnumType(int value){
     this.value = value;
   }

   public int getValue () {
      return this.id;
   }

  public static MyEnumType fromValue (int value){
     //returns the one coresponding to id
  }

}