How to set a scope for sessions

Question

I need to create a session to store my object in it and I need it to be avalable ONLY on the same computer!!!
I have the following:
jsp1
MyObject obj = (MyObject ) request.getSession().getAttribute("MyObject ");
request.getSession().setAttribute("MyObject ", obj);
in jsp2
MyObject obj=(MyObject)request.getSession().getAttribute("MyObject ");
now if several users work at the same time they get objects(in jsp2) , last created by another user (in jsp1).

Answer 1

To be clear, there are basically three ways to access the portal:
1) authlessanonymous: This method does not require a user to login. Furthermore, only one "session" is created for all anonymous users that are accessing the system. Therefore, it is not appropriate to store user-specific information in the session object when using authlessanonymous. However, the advantage of this is that it is extremely efficient. Obviously, sessions incur a certain amount of overhead and the ability to consolidate anonymous access to a single session reduces the load on the system and increases scalability.
2) anonymous: Notice the lack of "authless" here. In this case, a new session is created for every anonymous user accessing the system. In a large deployment, this will result in a lot of overhead in the system and reduce the overall scalability of the portal. The advantage of this configuration is that you can store user-specific information in the session.
3) Registered User: In this case, known users log into the system. This also creates a new session for each user. In this situation you can also store information in the user's display profile within the directory server. Users can customize their desktop and have a much more personalized experience with the portal.
The typical use case is that most access is done anonymously. Not all users will log into the portal. You want to minimize the impact that anonymous access has on the system. Users that log into the portal will have their own customized portal desktop and also have access to their own session. This creates a more personal experience for users that log into the portal.
Please read this for more information:
http://docs.sun.com/source/819-4154/dsameadm.html#wp27343