a4j:commandButton vs h:commandButton

[basharf]

Hello all,

I just want to know the difference, when to use and why

<a4j:commandButton action=”next”

<h:CommandButton action="next"

I mean .. they both do submit ... i.e.:  they will both refresh ... because its a submit .. am I right or not ?

when to use each .. and what is the difference ..

Thanks a lot

[ilya_shaikovsky]

a4j button rises ajax request and designed to partial page updates instead of complete tapge refresh. Noticeable limitation -  navigation supported only partially - only if your navigation cases are "redirect".