# File log4r/outputter/outputter.rb, line 60
    def formatter=(_formatter)
      if _formatter.kind_of?(Formatter)
        @formatter = _formatter
      elsif _formatter.kind_of?(Class) and _formatter <= Formatter
        if _formatter.respond_to? instance:instance
          @formatter = _formatter.instance
        else
          @formatter = _formatter.new
        end
      else
        raise TypeError, "Argument was not a Formatter!", caller
      end
      Logger.log_internal {"Outputter '#{@name}' using #{@formatter.type}"}
    end