public interface RegisterCallback
RegisterCallback is used to run code after signing up a MesosferUser in a background
 thread.
 
 The easiest way to use a RegisterCallback is through an anonymous inner class. Override the
 done function to specify what the callback should do after the save is complete. The
 done function will be run in the UI thread, while the register happens in a background
 thread. This ensures that the UI does not freeze while the register happens.
 
 For example, this sample code register the object myUser and calls a different
 function depending on whether the register succeeded or not.
 
 myUser.registerAsync(new RegisterCallback() {
   public void done(MesosferException e) {
     if (e == null) {
       myUserRegisteredSuccessfully();
     } else {
       myUserRegistrationDidNotSucceed();
     }
   }
 });
 | Modifier and Type | Method and Description | 
|---|---|
void | 
done(MesosferException e)
Override this function with the code you want to run after the register is complete. 
 | 
void done(MesosferException e)
e - The exception raised by the register, or null if it succeeded.