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Class mypackage.ServerMarks

java.lang.Object
   |
   +----java.rmi.server.RemoteObject
           |
           +----java.rmi.server.RemoteServer
                   |
                   +----java.rmi.server.UnicastRemoteObject
                           |
                           +----mypackage.ServerMarks

public class ServerMarks

extends UnicastRemoteObject

implements iServer

This class implements the various Functionality for the MarksServer

Version:

1.0

Author:

Vicky Shiv

administratorid

String for administratorid

administratorpassword

String for administrator password

clientTable

Hashtable to stores the active Clients

student

Hashtable to stores student

ServerMarks()

default Constructor for the ServerMarks It Searches for the file "data.dat" to load the object ,if the file is not found it creates some default data

addCourses(String, String)

to Add a new Courses to a student

addMarks(String, String, String)

to Add a new marks for a particular student and for a particular course

addStudent(String, String)

to Add a new Student

deleteCourses(String, String)

to Delete a Course for a particular studentid

deleteMarks(String, String, String)

to delete marks for a particular student and for a particular course

deleteStudent(String)

to Delete a existing Student

main(String[])

modifyMarks(String, String, String, String)

to modify a mark for a particular student and for a particular course

registerClient(String, iClient)

this will keep track for all the register client currently active It add the active client in to the hashtable and update the client with its current data

removeClient(iClient)

Remove the vanishing client

setPassword(String, String)

To set the password of the Student

updateClient()

update all the Existing ,active Client.this function is called at the destroy event of the administrator.

validateAdministrator(String, String)

to Validate the authentic administrator

validateUser(String, String)

to Validate the authentic student

 private Hashtable clientTable

Hashtable to stores the active Clients

 private static Hashtable student

Hashtable to stores student

 private String administratorid

String for administratorid

 private String administratorpassword

String for administrator password

 public ServerMarks() throws RemoteException

default Constructor for the ServerMarks It Searches for the file "data.dat" to load the object ,if the file is not found it creates some default data

 public synchronized void registerClient(String s,
                                         iClient client) throws RemoteException

this will keep track for all the register client currently active It add the active client in to the hashtable and update the client with its current data

Parameters:

String - the Studentid which want to get registered

iClient - the reference to the Remote Client

 public synchronized void removeClient(iClient client) throws RemoteException

Remove the vanishing client

Parameters:

iClient - reference to the Client

 public synchronized void updateClient() throws RemoteException

update all the Existing ,active Client.this function is called at the destroy event of the administrator. It will update all the active client with the latest information

 public static void main(String args[])

 public synchronized boolean setPassword(String userid,
                                         String password) throws RemoteException

To set the password of the Student

Parameters:

String - the student id whose password is to be changed

String - the new password

Returns:

boolean True if changes sucessfully else false

 public synchronized boolean addStudent(String userid,
                                        String password) throws RemoteException

to Add a new Student

Parameters:

String - the student id that is to be added

String - the password of the student

Returns:

boolean True if added sucessfully else false

 public synchronized boolean deleteStudent(String userid) throws RemoteException

to Delete a existing Student

Parameters:

String - the student id which is to be delete

Returns:

boolean True if deleted sucessfully else false

 public synchronized boolean addCourses(String userid,
                                        String courseid) throws RemoteException

to Add a new Courses to a student

Parameters:

String - the studentID in which new course to be added

String - the Course id

Returns:

boolean True if added sucessfully else false

 public synchronized boolean deleteCourses(String userid,
                                           String courseid) throws RemoteException

to Delete a Course for a particular studentid

Parameters:

String - the student id from which course is to be deleted

String - the courseid to be deleted

Returns:

boolean True if deleted sucessfully else false

 public synchronized boolean addMarks(String userid,
                                      String courseid,
                                      String marks) throws RemoteException

to Add a new marks for a particular student and for a particular course

Parameters:

String - the student id for which new mark is to be added

String - the course id for which new marks is to be added

String - the new testid and marks to be added

Returns:

boolean True if added sucessfully else false

 public synchronized boolean deleteMarks(String userid,
                                         String courseid,
                                         String marks) throws RemoteException

to delete marks for a particular student and for a particular course

Parameters:

String - the student id for which mark is to be deleted

String - the course id for which marks is to be deleted

String - the testid and marks to be deleted

Returns:

boolean True if deleted sucessfully else false

 public synchronized boolean modifyMarks(String userid,
                                         String courseid,
                                         String marks,
                                         String newmarks) throws RemoteException

to modify a mark for a particular student and for a particular course

Parameters:

String - the student id for which mark is to be modified

String - the course id for which marks is to be modified

String - the testid and marks to be modified

String - the new testid and marks

Returns:

boolean True if modified sucessfully else false

 public synchronized boolean validateUser(String userid,
                                          String password) throws RemoteException

to Validate the authentic student

Parameters:

String - the student id

String - the password

Returns:

boolean True if an authentic user else false

 public synchronized boolean validateAdministrator(String userid,
                                                   String password) throws RemoteException

to Validate the authentic administrator

Parameters:

String - the Administrator id

String - the password

Returns:

boolean True if an authentic administrator else false

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