def rows=(v)
      DataTypeValidator.validate "#{self.class}.rows", [Array], v
      v.each do |ref|
        DataTypeValidator.validate "#{self.class}.rows[]", [String], ref
      end
      @rows = v
    end
def rows=(v)
      DataTypeValidator.validate "#{self.class}.rows", [Array], v
      v.each do |ref|
        DataTypeValidator.validate "#{self.class}.rows[]", [String], ref
      end
      @rows = v
    end
(see #rows)