def DbGetExportdDeviceListForClass(self, argin):
        """ Query the database for device exported for the specified class.

        :param argin: Class name
        :type: tango.DevString
        :return: Device exported list
        :rtype: tango.DevVarStringArray """
        self._log.debug("In DbGetExportdDeviceListForClass()")
        argin = replace_wildcard(argin)
        return self.db.get_exported_device_list_for_class(argin)