title: tapestry grid default sorting
body: <p>I would like to specify a default sorting column of a tapestry grid.</p>
  
  <p>I understand that I could sort the records in my getter on the server side, however this seems like unnecessary effort, since grid is perfectly capable of sorting on it's own.</p>
  
  <p>So my grid definition looks like:</p>
  
  <pre class="lang-xml prettyprint-override"><code>&lt;t:grid source="queues" inPlace="true"&gt; &lt;/t:grid&gt;
  </code></pre>
  
  <p>The getQueues returns collection of objects like:</p>
  
  <pre class="lang-java prettyprint-override"><code>public class Queue {
      public String getName();
      public float getOccupancy();
  }
  </code></pre>
  
  <p>I would like to make the grid sorted by 'occupancy' attribute in descendent order by default.</p>
  
  <p>From the Tapestry documentation I see, that Grid has attribute <strong>sortModel</strong> which seems like the right option. However I can't find good explanation of what are the right values to set it to.</p>