Object Hierarchy

    GObject
        GDataParsable
            GDataEntry
                GDataAccessRule
                GDataCalendarEvent
                GDataCalendarCalendar
                GDataContactsContact
                GDataYouTubeVideo
            GDataFeed
                GDataCalendarFeed
        GDataQuery
            GDataCalendarQuery
            GDataContactsQuery
            GDataYouTubeQuery
        GDataService
            GDataCalendarService
            GDataContactsService
            GDataYouTubeService
    GInterface
        GDataAccessHandler