June 2012
Intermediate to advanced
386 pages
10h 7m
English
Content preview from Web Technology: Theory and PracticeBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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5.9 EVENT DRIVEN TRACKING
An application can be interacted through three objects—the Servlet Context, Request and Session objects. Any change in state of an object is manifested as an event which is handled through listeners. In general, a listener is something that will alert the program, on the occurrence of an event. Conceptually, it is similar to the click of a button or moving the mouse as interjected by a VB program. In this context, there are a few events that are applicable. In the case of a session, it can be tracked through certain events in its lifetime. These events can be trapped and the callback function executed. It helps the system do specific tasks like session or request logging or setting up database operations during initialization ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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