title: GAE w/ Objectify - Can you query a HashMap?
body: <p>In GAE, when using Objectify, can you query a HashMap? If so how would would you write it?</p>
  
  <pre><code>ofy().load().type(MyClass.class).filter("hashMapfieldName", "keyQueryinggFor").list();
  </code></pre>
  
  <p>Does not seem to work where the <code>hashMapfieldName</code> is a <code>HashMap&lt;String, String&gt;</code>. I am looking to find entities where <code>hashMapfieldName</code> contains a certain key.</p>