title: EL resolver in faces-config.xml
body: <p>While working on a Spring-JSF integration, I'm seeing this entry in <code>faces-config.xml</code>.</p>
  
  <pre><code>&lt;application&gt;
      &lt;el-resolver&gt;
          org.springframework.web.jsf.el.SpringBeanFacesELResolver
      &lt;/el-resolver&gt;
  &lt;/application&gt;
  </code></pre>
  
  <p>Can someone explain what exactly <code>&lt;application&gt;</code> and <code>&lt;el-resolver&gt;</code> are?</p>