Java Enterprise in a Nutshell, Second Edition

Name

HttpSessionActivationListener

Synopsis

This is a listener interface that is invoked when a session object is activated or passivated. Passivation occurs when a session is persisted to disk or transferred between virtual machines in distributed container environment (in both instances, the session object will be serialized). Sessions should release any non-serializable resources before passivation and reacquire them after activation.

                  
public interface HttpSessionActivationListener extends java.util.EventListener {
// Public Instance Methods
   public abstract void sessionDidActivate(
        HttpSessionEvent se);  
   public abstract void sessionWillPassivate(
        HttpSessionEvent se);  
}