CalendarHandler (Openmeetings Service 6.3.0 API)

All Known Implementing Classes:

AbstractCalendarHandler, CtagHandler, EtagsHandler, MultigetHandler, WebDAVSyncHandler
```
public interface CalendarHandler
```
SyncHandler Interface specifies if the class is Sync Handler. The classes which implement this class can be used to update items depending on the type of syncing necessary.
This is a helper class to help Syncing of CalDAV calendars.
There are currently three types of Sync Handlers. Namely:
- ETAGs Sync
- CTAGs Sync (Similar to ETAGs but an additional step is necessary)
- WebDAV-Sync Report
- Calendar-Multiget Report

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`deleteItem(Appointment appointment)`	Delete Appointment on the server.
`OmCalendar`	`syncItems()`	Function to update all items in the CalDAV calendar.
`boolean`	`updateItem(Appointment appointment)`	Function for create/updating multiple appointment on the server.

- Method Detail
  - syncItems
```
OmCalendar syncItems()
```
    Function to update all items in the CalDAV calendar. The owner of the appointments created are the same as the owner of the calendar.
    
    Returns:
    
    Returns the updated calendar after updation of all events.
  - updateItem
```
boolean updateItem(Appointment appointment)
```
    Function for create/updating multiple appointment on the server. Performs modification alongside of creation new events on the server.
    
    Parameters:
    
    appointment - Appointment to create/update.
    
    Returns:
    
    True when the updation is a success else False
  - deleteItem
```
boolean deleteItem(Appointment appointment)
```
    Delete Appointment on the server.
    
    Parameters:
    
    appointment - Appointment to delete
    
    Returns:
    
    True when the deletion is a success else False