title: Objectify queries: filter by date
body: <p>I am using GAE and I need to write an Objectify query that asks for the elements created after September 1st.</p>
  
  <p>The dateCreated field is Java.util.Date and it is stored in this format 2012-11-29 16:03:59.494000.</p>
  
  <p>This request is NOT working:</p>
  
  <pre><code>   public List&lt;MyElement&gt; listAllFromUser(String userId)
      {
          Objectify ofy = ObjectifyService.begin();
          Query&lt;MyElement&gt; q=ofy.query(MyElement.class).filter("dateCreated &gt;", "2013-09-01 00:00:00");
  
          List&lt;MyElement&gt; results = q.list();
  
          return results;
      }
  </code></pre>