Retrieving Servlet Context Parameters using EL

This example gets the 'facelets.DEVELOPMENT' init parameter.

#{facesContext.externalContext.getInitParameter('facelets.DEVELOPMENT')}

But in order to keep from typing so much you can declare it in a factory.

<factory name="isFaceletDevelopment" auto-create="true"  value="#{facesContext.externalContext.getInitParameter('facelets.DEVELOPMENT')}"/>

now that you have done so you can merely reference it as

#{isFaceletDevelopment}

and plug that in into any bean or page.