title: Firebase Android - how to query not equals
body: <p>I have the following code but I don't what method to use something like <code>.notEqualsto(uid)</code></p>
  
  <pre><code>public class CustomAdapter extends FirebaseRecyclerAdapter&lt;UserVO, ContactViewHolder&gt; {
  
      public CustomAdapter(DatabaseReference reference, String uid){
          super(UserVO.class,
                  R.layout.item_contact,
                  ContactViewHolder.class,
                  reference.child(FIREBASE_USER_GLOBAL_LIST).orderByChild("email"));
      }
  </code></pre>