Unlike most of my blog posts, where I try to describe the easiest possible way to do things, in this posting, I'll instead go over a Java-based custom JSF component that responds to the Ajax tag. The reason being that there simply aren't any examples out there of how to do this, and at least two people have expressed interest in finding exactly out how this is done. I'd advise anyone considering doing this to make really sure that you can't do the same thing in a Composite Component (you usually can), but sometimes, a Java-based custom JSF component is going to be required.

We're going to cover the following topics here, and it's going to be a little more code than usual, but I suspect that this will end up saving some folks a bunch of time, so lets plow forward. I'll cover:

• Ajax listeners
• Facelet components
• Integrating the two
  

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  Published Oct. 12, 2009— Reads 8,001
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  About Jim Driscoll
  Jim Driscoll has worked at Sun Microsystems for 12 years, working on such projects as the first version of Servlets (in the Java Web Server), and the initial implementation of Java 2, Enterprise Edition. He is currently a Senior Engineer working on the implementation of Java Server Faces, helping to integrate technologies such as AJAX and Comet into the new release.