public boolean isTimeValid(){
  if (_conditions == null) {
    return true;
  }
 else {
    return _conditions.checkDateValidity(currentTimeMillis());
  }
}

public boolean isTimeValid ( ) { if ( _conditions == null ) { return true ; } else { return _conditions . checkDateValidity ( currentTimeMillis ( ) ) ; } }
gets the validity of the assertion evaluating its conditions if specified .
