Interface DBConnection

public interface DBConnection

Database Connection Inteface between Server and Database

Category: Baseline

Inherits from:

Client:

Method Summary

int	GetConnection(int serverId, int userId) Authenticates the user into the File Server database [Category: Baseline] [Clients: ]
boolean	RelaseConnection(int serverId, int conId) Relase the connection between Server and Database [Category: Baseline] [Clients: ]

Method Detail

GetConnection

public int GetConnection(int serverId,
                         int userId)

Authenticates the user into the File Server database [Category: Baseline] [Clients: ]

Parameters:

serverId - the identification of a server

userId - the identification of a user who requests for authentication

Returns:

the identification of the connection

Throws:

LimitedConnection - if the number of connections from server to database excesses a limit

InvalidServerId - if serverId is not valid

AuthenticationDuplicated - if a user has already log in.

ConnectionFail - if database connection is closed in transaction

RelaseConnection

public boolean RelaseConnection(int serverId,
                                int conId)

Relase the connection between Server and Database [Category: Baseline] [Clients: ]

Parameters:

serverId - the identification of a server which has a connection to database

conId - the identification of a connection between Server and Database

Returns:

true if the relase is completed

Throws:

NoSuchConnection - if there is no such connection

InvalidServerId - if serverId is not valid