public static void addContactPhoto(ContactEntry entry, ContactsService service, byte[] photoData) 
      throws ServiceException, IOException {
      Link editPhotoLink = entry.getContactEditPhotoLink();
      URL editUrl = new URL(editPhotoLink.getHref());
      
      GDataRequest request = service.createRequest(GDataRequest.RequestType.UPDATE, 
          editUrl, new ContentType("image/jpeg"));  
      
      OutputStream requestStream = request.getRequestStream();
      requestStream.write(photoData);
      
      request.execute();
    }    
  }

여기서 entry, service는 정확히 어디서 넘어 온 파라미터 인가요?(위의 내용은 디펠로퍼스 가이드)