@Override public void valueChange(ValueChangeEvent e){
  String name=e.getPropertyName();
  Object value=e.getNewValue();
  log.config(name + "=" + value);
  if (value == null)   return;
}

@ Override public void valueChange ( ValueChangeEvent e ) { String name = e . getPropertyName ( ) ; Object value = e . getNewValue ( ) ; log . config ( name + "=" + value ) ; if ( value == null ) return ; }
vetoable change listener . - business partner - currency - date
