1 Data object classes
DeviceData: Obect used to send and receive data on device.
DbDatum: Object used to put or get properties on database.
DbDevInfo: Object used to read device information on database.
DbDevImportInfo: Object used to read imported device information on database.
DbDevExportInfo: Object used to read exported device information on database.
2 Asynchronous callback related classes
CallBack: Object called at asynchronous call reply
CmdDoneEvent: Object to pass asynchronous command reply data to a CallBack object.
ReadAttrEvent: Object to pass asynchronous read_attribute reply data to a CallBack object.
AttrWrittenEvent: Object to pass asynchronous write_attribute reply data to a CallBack object.
3 Devices and Database access classes
DeviceProxy: Device access (aggregates DbDevice class).
Group: Multiple device access class
Database: Direct access to TANGO database.
DbClass: Class properties access to TANGO database.
DbServer: Server properties access to TANGO database.
DbDevice Device properties access to TANGO database.