February 2007
Intermediate to advanced
65 pages
1h 10m
English
Content preview from AJAX and JavaServer™ FacesBecome 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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Real-Time Validation
As we saw in the section “Form Completion,” on page 9, you can implement basic Ajax in a JSF application with little more than a servlet and a few lines of JavaScript. In this example, we’ll implement real-time validation, which will give us the opportunity to explore some of the more complex interactions between Ajax and JSF.
The application shown in Figure 3 performs real-time validation. When the user enters the fifth character of the Zip Code, we execute an Ajax request to validate those five digits.
Figure 3. Real-time validation
On the server, we obtain a reference to the component that represents the Zip Code field ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.