protected Attribute(Group g, Field f, String val) { this.setField(  f   ); this.setGroup(  g   ); this.setValue(  val ); }
public Attribute() { super(); }
  protected Attribute(Group g, Field f, String val) {    this.setField(  f   );    this.setGroup(  g   );    this.setValue(  val );  } // protected Attribute(g, f, val)