CalendarEntryAddEvent is a BBj Interface that contains event information for when a single entry (not an event source) has been added to the calendar via the BBjCalendarWidget::addEntry() method. This data class will be made available to your custom callback routine after mouses over a calendar entry if you have previously executed the BBjCalendarWidget::setCallback() method to register for the CalendarAPI.ON_CALENDAR_ENTRY_ADD event.