What is HttpSessionBindingListener?

Interface HttpSessionBindingListener Causes an object to be notified when it is bound to or unbound from a session. This may be as a result of a servlet programmer explicitly unbinding an attribute from a session, due to a session being invalidated, or due to a session timing out.

What is the event associated with Httpsessionattributelistener?

javax.servlet.http The order in which implementations of this interface are invoked is unspecified. Receives notification that an attribute has been added to a session. Receives notification that an attribute has been removed from a session. Receives notification that an attribute has been replaced in a session.

How are session listeners implemented in Java?

MyListener.java

1. import javax.servlet.ServletContext;
2. import javax.servlet.http.HttpSessionEvent;
3. import javax.servlet.http.HttpSessionListener;
4. public class CountUserListener implements HttpSessionListener{
5. ServletContext ctx=null;
6. static int total=0,current=0;
7. public void sessionCreated(HttpSessionEvent e) {
8. total++;

What do you mean by servlet context?

Interface ServletContext. public interface ServletContext. Defines a set of methods that a servlet uses to communicate with its servlet container, for example, to get the MIME type of a file, dispatch requests, or write to a log file. There is one context per “web application” per Java Virtual Machine.

How does the httpsessionbindinglistener work in Java?

Notifies the object that it is being unbound from a session and identifies the session. Notifies the object that it is being bound to a session and identifies the session. Notifies the object that it is being unbound from a session and identifies the session.

What causes an object to be notified by an httpsessionbindingevent?

Causes an object to be notified when it is bound to or unbound from a session. The object is notified by an HttpSessionBindingEvent object. This may be as a result of a servlet programmer explicitly unbinding an attribute from a session, due to a session being invalidated, or due to a session timing out.

What causes an extends Java util eventlistener to be notified?

extends java.util.EventListener Causes an object to be notified when it is bound to or unbound from a session. The object is notified by an HttpSessionBindingEventobject. This may be as a result of a servlet programmer explicitly unbinding an attribute from a session, due to a session being invalidated, or due to a session timing out. Author: