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--- jee [2008/11/05 20:24] – created roumani
+++ jee [2008/11/05 20:32] (current) – roumani
@@ Line 17: / Line 17: @@
   * Example: add a new validation; support a new protocol; log; compress; etc.
-===== Declarative Security =====
+===== Event Listeners =====
+  * Why: Monitor data structures globally and take actions
+  * What: Get notified when the context and/or the session is created or destroyed and when any attribute in it is changed, added, or removed.
+  * How: Write a listener that implements one of 4 interfaces and register it in web.xml.
+  * Example: detect and log certain session features; start a back-office order application based on committed baskets; track sessions in an admin webapp; etc.
-  * Why: Authentication and encryption without programming.
 ===== To Do =====
@@ Line 25: / Line 30: @@
   * See the //web_security.xml// file in the //Resource Directory// under //jee//.
   * See the //web_filter.xml// file and //PrimeFilter.java" in the //Resource Directory// under //jee//.
+  * See the //web_listener.xml// file and //HotNumbers.java" in the //Resource Directory// under //jee//.
+  * Use the Servlet-Spec file in the //Resource Directory// as a reference for these advanced features.
-Look at the ''labtest'' directory in the //Resource Directory//.
-  * Look at ''CUSTdemo'' in the //Resource Directory// under ''jsp''.
-  * Read Chapter 6 up to and excluding Section 6.7.
-  * Read Chapter 8, Section 8.6 and 8.7.