Abstract Session

By: N. Pryce

Summary: When an object's services are invoked by clients, the server object may have to maintain state for each client. The server creates a session object that encapsulates state information for the client. The server returns a pointer to the session object.

Pattern: Abstract Session

When an object's services are invoked by clients, the server object may have to maintain state for each client. The server creates a session object that encapsulates state information for the client. The server returns a pointer to the session object.

• This pattern is an implementation of Session[Lea00]
• The server uses Factory Method [Gamma+95] to create sessions.
• The server uses Mediator [Gamma+95] to control interactions among clients. Session objects control interactions of the server and a single client.
• Acceptor and Connector use this pattern.
• This pattern can implement Adapter [Gamma+95]

Url: http://www-dse.doc.ic.ac.uk/~np2/patterns/