what is process and update and how it works in primefaces [duplicate]

Question

Can you differentiate process and update.Since am new to JSF am little confused where to use.unnecessary use causing issue in my Application.

Answer 1

process in primefaces equals to execute in JSF

process : Determines id’s of components to be processed(sent/submitted to server).

update in primefaces equals to render in JSF

update : Determines id’s of components to be updated (refreshed with updated values from server).

If you want to learn about those two tags (and more) you should read this blog post :

Learning JSF2: Ajax in JSF – using f:ajax tag

After that you should know that primefaces process and update can also use a more powerful selectors, read more here

jQuery Selector API meets JSF

and

PrimeFaces Selectors - @(selector)