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Separating JSF and JSP

Posted by daniel on June 14, 2004 at 5:14 AM PDT

You can have two perfectly good technologies that just shouldn't be coupled.

In Also in Java Today

Hans Bergsten likes using JSP and JSF technology - just not together. In Improving JSF by Dumping JSP, he explains that "JSP is good for mixing static content and dynamic content pulled from resources made available by other parts of the application; [and] that JSP's main mission in life is to generate a response to a request; a JSP page is processed in one pass from top to bottom, with JSP action elements processed in the order in which they appear in the page. JSF, on the other hand, has a much more complex lifecycle. Somewhat simplified, JSF components are created, asked to process their input (if any), and then asked to render themselves. For JSF to work well, these three things must happen separately in a well-defined order, but when JSF is used with JSP, they don't. Instead, the component creation and rendering happens in parallel, causing all kinds of problems."Join the talkback.

N. Alex Rupp's most recent blog entry is a pointer to his article on TheServerSide in the seriesContainer Driven Testing. Rupp blogs, "Everyone knows you can't easily write unit tests for EJB components. Or can you? I just wrote an article on testing EJBs in-container, and if you work with EJB technology you might want to take a look at it. A lot of the complaints about EJBs have focused on how difficult they are to unit test, and frameworks have begun to spring up that simulate the EJB container and server environments for testing purposes. I've recently stumbled upon a technology that has given me a very compelling reason to reconsider my EJB unit testing strategy."

Also, here on java.net, Joshua Marinacci has published part two of his look at The HTML Renderer Shootout. In this part he takes a look at commercial HTML renderers and lists a handful that didn't make the cut when measured against the requirements "of support for modern standards (XHTML and CSS1/CSS2 support), support for legacy pages, hackability, and speed. [Also] the code must be callable from Java (meaning the product is either 100 percent Java or a Java wrapper to native code), and the package must show some amount of recent activity."


In today's
Weblogs, Richard Monson-Haefel writes OpenEJB: The BEST way to test EJBs. He points to the Rupp article mentioned above and writes that the goal of OpenEJB was "to create a fast and lightweight EJB container system that could be easily embedded in any application (its even been used in handheld devices). [..]
The fact that OpenEJB is so lightweight and embeddable is why it actually serves as an excellent EJB testing tool. It starts up and deploys EJBs is seconds (that right I said seconds, not minutes). In addition, it provides a robust and fully compliant EJB container system - one that is used by Apache Geronimo for production enviorments."

Early access releases from Sun include Tiger Snapshots: bringing early feedback into the release cycle... "These are slightly tested builds that contain the latest fixes and changes to the latest release of J2SE, Tiger."

How do you measure market share if you don't charge anything for your product? This is Simon Phipps' question in Market Share or Sponsor Share? Simon asks "it seems that a mature market with open source players is a severe challenge to the usefulness of analysts. What's the answer?"


In today's Projects and Communities, Eduardo Pelegri-Llopart is "till surprised at how many people are confused about Sun's J2EE 1.4 SDK. For example, did you know it is free? Really free, even for deployment?"

Tray Icon API provides a platform-independent way to create system tray icons on the desktop. A tray icon can be animated, and it can have a caption (text), tool tip, and menu associated with it.


The Forums have been a bit quiet - must be time for us to stir something up.


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