ParkNPark.middletier
Class ClientManagerFactoryImpl

java.lang.Object
  org.omg.PortableServer.Servant
      ParkNPark.interfaces.ClientManagerFactoryPOA
          ParkNPark.middletier.ClientManagerFactoryImpl

All Implemented Interfaces:

InvokeHandler, ClientManagerFactoryOperations

public class ClientManagerFactoryImpl
extends ClientManagerFactoryPOA

Creates and manages ClientManager instances for clients

Field Summary

private int

MAX_ATTEMPTS Maximum number of attempts at the database

Constructor Summary

ClientManagerFactoryImpl()

Method Summary

ClientManager	getClientManager() Creates a new client manager instance for a new client
ClientManager	getExistingClientManager(int clientID) Returns the existing client manager instance for an existing client.
void	poke() The poke method

Methods inherited from class ParkNPark.interfaces.ClientManagerFactoryPOA

_all_interfaces, _invoke, _this, _this

Methods inherited from class org.omg.PortableServer.Servant

_default_POA, _get_delegate, _get_interface_def, _is_a, _non_existent, _object_id, _orb, _poa, _set_delegate, _this_object, _this_object

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MAX_ATTEMPTS

private int MAX_ATTEMPTS

Maximum number of attempts at the database

Constructor Detail

ClientManagerFactoryImpl

public ClientManagerFactoryImpl()

Method Detail

getClientManager

public ClientManager getClientManager()
                               throws ServiceUnavailableException

Creates a new client manager instance for a new client

Returns:

A new client manager instance for a new client

Throws:

ServiceUnavailableException - Thrown if the database cannot be contacted or if some other reason prevents the client manager from being created successfully

getExistingClientManager

public ClientManager getExistingClientManager(int clientID)
                                       throws ServiceUnavailableException,
                                              InvalidClientException

Returns the existing client manager instance for an existing client. A client can call this method with its client ID and last sequence number on any server and will get its client manager instance

Parameters:

clientID - The ID of the client to get the ClientManager of

Returns:

The existing client manager instance for an existing client

Throws:

InvalidClientException - Thrown when the given client ID is not known to the system

ServiceUnavailableException - Thrown if the database cannot be contacted or if some other reason prevents the client manager from being retrieved successfully

poke

public void poke()
          throws ServiceUnavailableException

Description copied from interface: ClientManagerFactoryOperations

The poke method

Throws:

ServiceUnavailableException