title: how to store and retrieve (_sh_SESSION) values in GAE
body: <p>How I can store and easily query <strong>session data</strong> <strong>(_sh_SESSION)</strong> in google app engine datastore?
  i am using <strong>JPA.</strong></p>
  
  <p>I am new to GAE, i read <a href="https://cloud.google.com/appengine/docs/java/config/appconfig" rel="nofollow noreferrer">this</a>.</p>