foreach (var e in results)
  {
    var interaction_type = e.get_subject (0).get_interpretation ();
    for (var i = 1; i < e.num_subjects (); i++)
      {
        var id = this._get_iid_from_event_metadata (e.get_subject (i).get_uri ());
        this._personas.get (id).freeze_notify ();
        this._increase_persona_counter (id, interaction_type, e);
        ids.add (id);
      }
  }
/* Allow notifications for personas with an interaction history */
foreach (var id in ids)
  {
    var persona = this._personas.get (id);
    persona.thaw_notify ();
    persona.notify_property ("im-interaction-count");
    persona.notify_property ("last-im-interaction-datetime");
    persona.notify_property ("call-interaction-count");
    persona.notify_property ("last-call-interaction-datetime");
  }