JSP vs Facelets as view technology for JSF

manpreet Best Answer 2 years ago

I'm not 100% percent what's the difference between JSP and Facelets, when it comes to JSF view technology.
I searched on google and everybody explains the difference (some by just copying others) in the same way.
I want to know what is the difference if I have a JSP page (document style, with jsp:root, so no scriptlets) or a Facelets page, when a reuqest comes in, and when in RenderResponse each JSF tag is executed.
Also what's the difference between ui:include and jsp:include. I understand JSP/Servlet very good, but not that much the JSF internals.
Thanks, and I hope you won't see this question like all other JSP vs Facelets questions.

ps: a small fraction of response I found is that Facelets isn't transformed in Java Servlet Class, like JSPs are (which this makes it faster), but instead uses a SAX parser, which I don't understand what it does in its callback methods.

manpreet 2 years ago

The point is that in JSP you code pages. In JSF you code components rather than pages. That's the main difference.