public boolean hasAllProperties() indicates whether a person
      object has all its metadata populated.
    Attention: Introduced in SDK version 1.3.
  Parameters
None
Returns
Returns a boolean true if person object has all its metadata populated.
Example
    PersonService ps = session.getServiceRegistry().getPersonService();
    
    Person p = ps.getPerson("joeuser");
    
    Log.d(TAG, "metadata fully populated: " + p.hasAllProperties());
      
      Would produce output such as the following (if person metadata is fully populated):
true