Object Hierarchy

    GObject
        GDataQuery
            GDataCalendarQuery
            GDataContactsQuery
        GDataService
            GDataCalendarService
            GDataContactsService
            GDataYouTubeService
        GDataFeed
        GDataEntry
            GDataCalendarEvent
            GDataCalendarCalendar
            GDataContactsContact
            GDataYouTubeVideo