title: Variable into apache from block
body: <p>For example I have from like this:</p>
  <pre><code>from(&quot;scheduler://a?scheduler=quartz2&amp;scheduler.cron=[some cron exp])
                      .to(&quot;activemq:queue:[some queue]&quot;).setHeader(Exchange.BREADCRUMB_ID, simple(simple(getContext().getUuidGenerator().generateUuid())))
                      .to(&quot;direct:saveSchedulerHistory&quot;)
  </code></pre>
  <p>I want to put this <code>simple(getContext().getUuidGenerator().generateUuid())</code></p>
  <p>into something like variable and put into saveSchedulerHistory (ofc I want to generate new always when scheduler start)</p>