The session ID must be long enough to prevent brute force attacks, where an attacker can go through the whole range of ID values and verify the existence of valid sessions.
Thus each concurrent payroll process only updates one partition, and more importantly, each partition is updated by one, and only one, payroll process. The number of payroll processes is usually a function of the hardware configuration.
This doesn't change often, so I don't expect to do partition maintenance.
If I need to change the payroll stream definitions, then I will completely rebuild the partitioned tables.
Authentication mechanism allows users to have secure access to the application by validating the username and password. Also a method is written to perform logout by invalidating HTTPSession attached.
We will be using JSF view for login, DAO object , Http Session for session management, JSF managed bean and mysql database. Step 5: Now create the Login DAO java class as below.