Prime Community Forum

Direct to DOM feature (automatic AJAX, you don't need to specify a region to Ajaxify as we do in Primefaces or Raw JSF) is highlighted as a major feature in Icefaces. Are there any plans to bring this feature to Primefaces in the future?

How is the performance of Direct to DOM rendering?

Not in a million years. You don't want to know what direct to dom does under the hood to achieve this.

Is there an detailed description available how Direct to DOM works?

When a new page is rendered, it is compared with the previous image of the server side object (of the page), and then rendered (by Ajax) only the changed part of the page.

This is automatic Ajax and the idea behind this seems fantastic. It must have been built into the core JSF specification.

I can't find any reasons for anyone hating this idea!

I don't like it because of the cpu and memory load it brings, keeping old images require additional memory and comparing what has changed in page will eat some of your cpu.

If you define what to update yourself, you have more flexibility and less resource usage.

That's why JSF EG decided current approach in JSF core and PrimeFaces follows that.

@optimus.prime

I appreciate your response, it is showing the other side of D2D.

I'm not a native speaker of English but I think there is a saying "every rose has its thorn"

D2D feature slows the web app down. This is because ICEFaces has a bad performance in heavy multi-user apps (sorry ICEFaces' fans). We don't need this definitely in PrimeFaces.