Hello,

I am having trouble with hibernate annotation. I can't get the TaskProp set in this Task object to populate.

@Entity
@Table(name = "Task",
uniqueConstraints = {@UniqueConstraint(columnNames={"type_id","name"})})
public class Task implements Serializable {

@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name = "task_id")
private long task_id;

@OneToMany(fetch = FetchType.LAZY, cascade=CascadeType.ALL ) //,mappedBy = "task"
private Set<TaskProp> taskprops = new HashSet<TaskProp>();
//more code...
}

and here is the taskprop class...
@Entity
@Table(name = "TaskProp",
uniqueConstraints = @UniqueConstraint(columnNames = {"type_id","rank"}))
public class TaskProp implements Serializable {
@Id @GeneratedValue(strategy=GenerationType.AUTO)
@Column(name = "taskprop_id")
private long taskprop_id;

private Task task;

@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "task_id", nullable = false)
public Task getTask() {
return this.task;
}
//more code...
}

Then I save it with something like this
public void save(Task t, HashSet<TaskProp> taskprop){
Session session = sfact.getCurrentSession();
session.beginTransaction();
Iterator i = taskprop.iterator();
while(i.hasNext()){
TaskProp tp = (TaskProp) i.next();
tp.setTask(t);
t.addTaskProp(tp); //do I need to do a session.save(tp)??
}
session.save(t);
session.getTransaction().commit();
}

Basically, I get no errors until I try to do a Task t; Set s = t.getTaskProps();
Everything in S is null when coming back from the db.

Thanks so much for your help!
-Daniel Quest