HttpSessionListener (Servlet 4.0 API Documentation - Apache Tomcat 9.0.111)
Description: declaration: package: javax.servlet.http, interface: HttpSessionListener

# Interface HttpSessionListener

All Superinterfaces:
  `EventListener`

public interface HttpSessionListener extends EventListener
Implementations of this interface are notified of changes to the list of active sessions in a web application. To receive notification events, the implementation class must be configured in the deployment descriptor for the web application.

Since:
  Servlet 2.3
See Also:
  - `HttpSessionEvent`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `default void`
  `sessionCreated(HttpSessionEvent se)`
  Notification that a session was created.
  `default void`
  `sessionDestroyed(HttpSessionEvent se)`
  Notification that a session is about to be invalidated.

- ## Method Details

  - ### sessionCreated

    default void sessionCreated(HttpSessionEvent se)
    Notification that a session was created. The default implementation is a NO-OP.
    Parameters:
      `se` - the notification event

  - ### sessionDestroyed

    default void sessionDestroyed(HttpSessionEvent se)
    Notification that a session is about to be invalidated. The default implementation is a NO-OP.
    Parameters:
      `se` - the notification event