title: JSF Nested EXpression language
body: <p>Is it possible to write nested JSF expression? If yes, please give me the syntax.
  If No, Is there any possible work around ??</p>
  
  <p>I need this as I need to display column in rich Datatable from hasmap.</p>
  
  <pre><code>&lt;rich:column&gt;
   &lt;f:facet name="header"&gt;
      &lt;h:outputText value="Item Number" /&gt;
  &lt;/f:facet&gt;
              &lt;h:outputText value="#{item.get('key')}" /&gt;
  &lt;/rich:column&gt; 
  </code></pre>
  
  <p>In the above example, I cant hardcode 'key' in the expression lang. I need to read from properties file.</p>
  
  <p>Please Help.
  Thanks.</p>