title: Long poll for JSF - what are the choices?
body: <p>I need to implement long-poll for a notification system, I current using Primefaces ajax framework but currently does not support long poll. I just wondering what is available for JSF developer if they want to implement long poll? Another question: between long poll and web push, for notification system, which one is prefer?</p>
  
  <p>Note: I am using JSF 2.0, Java EE 6 and Glassfish 3.0.1</p>