public boolean isSet(_Fields field) {
    if (field == null) {
      throw new IllegalArgumentException();
    }

    switch (field) {
    case EXPRESSIONS:
      return isSetExpressions();
    case START_KEY:
      return isSetStart_key();
    case COUNT:
      return isSetCount();
    }
    throw new IllegalStateException();
  }
public boolean isSet ( _Fields field ) { if ( field == null ) { throw new IllegalArgumentException ( ) ; } switch ( field ) { case EXPRESSIONS : return isSetExpressions ( ) ; case START_KEY : return isSetStart_key ( ) ; case COUNT : return isSetCount ( ) ; } throw new IllegalStateException ( ) ; }
Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise