code: public void field2inout(Object o, String field, Object comp, String inout) {
          controller.mapInField(o, field, comp, inout);
          controller.mapOutField(comp, inout, o, field);
      }
docs: Maps a field to an In and Out field
  
  @param o the object
  @param field the field name
  @param comp the component
  @param inout the field tagged with In and Out