[OmniFaces utilities (2.2)] Check if RichFaces 4.x is installed

---

[OmniFaces utilities] The isRichFacesInstalled() method returns true if RichFaces 4.x is installed. That is, when the RichFaces 4.0-4.3 specific ExtendedPartialViewContextImpl, or RichFaces 4.5+ specific ExtendedPartialViewContext is present in the runtime classpath. As this is usually auto-registered, we may safely assume that RichFaces 4.x is installed.

Note RichFaces 4.4 doesn't exist.

---

Method:

Usage:

So, in order to find out if RichFaces 4.x is installed or not, just invoke Hacks#isRichFacesInstalled() method:

import org.omnifaces.util.Hacks;

...
// e.g. false, if RichFaces 4.x is not installed

boolean isRichFacesAvailable = Hacks.isRichFacesInstalled();

      if(isRichFacesAvailable){

          // looks like RichFaces 4.x is installed

      } else {

          // looks like RichFaces 4.x is not installed

      }