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Class ajanta.apps.calendar.CalendarDB 

java.lang.Object
   |
   +----ajanta.util.ResourceImpl
           |
           +----ajanta.apps.calendar.CalendarDB
public class CalendarDB
extends ResourceImpl
implements Calendar, AccessProtocol
CalendarDatabase is a Resource object serving as database recording the schedule of activities and appointments for a user. It stores DayEvents in a hash table keyed on the date. This Hashtable is serealized to the file "home_dir/.ajanta/servers/calendarServer/HashTableDB".

Constructor Index

o CalendarDB()

Method Index

o checkConflict(CalendarEvent)
method checks if a given event clashes with an existing appointment.
o deleteEvent(DayEvents, CalendarEvent)
Delete a CalendarEvent from a given DayEvent
o getDayEvents(Date)
Return DayEvents for the given date
o getProxy(Credentials)
return proxy to the CalendarDB based on credentials
o printDayEvents(Date)
Print DayEvents for the given date
o readCalDB()
Initialize the hashtable by reading serialized hashtable
o readHashTable()
Update the hashtable by reading serialized hashtable
o ScheduleEvent(CalendarEvent)
method allows the agent to schedule a particular appointment by inserting an entry into the database.
o writeHashTable()
hashtable is serialized to the file

Constructors

o CalendarDB 
 public CalendarDB()

Methods

o ScheduleEvent 
 public synchronized void ScheduleEvent(CalendarEvent e)
method allows the agent to schedule a particular appointment by inserting an entry into the database.

o deleteEvent 
 public synchronized void deleteEvent(DayEvents dEvent,
                                      CalendarEvent e)
Delete a CalendarEvent from a given DayEvent

Parameters:
dEvent - the DayEvent
e - CalendarEvent to be deleted
o getDayEvents 
 public DayEvents getDayEvents(Date day)
Return DayEvents for the given date

o printDayEvents 
 public void printDayEvents(Date day)
Print DayEvents for the given date

o checkConflict 
 public boolean checkConflict(CalendarEvent e)
method checks if a given event clashes with an existing appointment.

Returns:
true if it clashes flase otherwise
o getProxy 
 public Resource getProxy(Credentials cred)
return proxy to the CalendarDB based on credentials

o readHashTable 
 public void readHashTable()
Update the hashtable by reading serialized hashtable

o writeHashTable 
 public void writeHashTable()
hashtable is serialized to the file

o readCalDB 
 public void readCalDB()
Initialize the hashtable by reading serialized hashtable 

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