title: Access properties / values set in the bean in camel route
body: <p>Is there a way to access some values or properties that are set in the bean which can be accessed in the camel route ?
  Example, </p>
  
  <pre><code>from(RoutA.getEndpoint()).routeId(RouteA.getEndpoint())
          .to(RouteB.getEndpoint())
          .to(RouteC.getEndpoint())
          .to(RouteD.getEndpoint())
          ;
  </code></pre>
  
  <p>I am setting a flag in routeA bean and based on the flag I need to call some routes vs others</p>
  
  <pre><code>from(RouteA.getEndpoint()).routeId(RouteA.getEndpoint())
          .choice()
              .when(header(flag).isEqualTo(true)).to(RouteB.getEndpoint())
          .end()
          .to(RouteC.getEndpoint())
          .to(RouteD.getEndpoint())
          ;
  </code></pre>
  
  <p>How to add the flag as a header or any other way to do it ?</p>