title: HIbernate outer join without mapping
body: <p>I have 2 tables and i am trying to use join without any mapping between the classes
  (StData and ApFlow).I have a query like this and i get the desired result in database. 
  Is it possible to do without mapping, if so how to do. Please someone help me. 
  With this query is am getting <code>QueryException: Unable to resolve path [ApFlow.ApNumber]</code>. </p>
  
  <pre><code>session.createQuery("FROM StData "
                  + "LEFT OUTER JOIN ApFlow "
                  + "ON StData.Apart = ApFlow.Apart and StData.StTitle = ApFlow .StTitle "
                  + "WHERE ApFlow.ApNumber= :ApNumber and ApFlow.Apart= :Apart")
  
          .setParameter("ApNumber",ApNumber)
          .setParameter("Apart", Apart)
          .list();
  </code></pre>