title: Query an object in Parse4J
body: <p>I would like to know if it is possible to get an object, filtering by an attribute of an attribute class.</p>
  
  <p>To be more specific, if I have:</p>
  
  <pre><code>Person&lt;br&gt;
  -BasicInformation basicInformation
  
  BasicInformation&lt;br&gt;
  -Integer identificationNumber
  </code></pre>
  
  <p>I want to retrieve all Person that has <code>identificationNumber = 9000000</code></p>
  
  <p>I should do something like this:</p>
  
  <pre><code>ParseQuery&lt;Person&gt; personQuery = ParseQuery.getQuery(Person.class);    
  personQuery.whereEqualTo("basicInformation.identificationNumber", 9000000);
  </code></pre>
  
  <p>But it does not work. Any ideas?</p>