serialize with SerialMethod.XML

======================
     public static void serialize(String query, String outputFileUri) {
         try {
             QueryProcessor processor = new QueryProcessor(query, context);
             File outputFile = FileProc.newFile(outputFileUri);
             SerializerOptions so = new SerializerOptions();
             so.set(SerializerOptions.ENCODING, "UTF-8");
             so.set(SerializerOptions.METHOD, SerialMethod.BASEX);
//            so.set(SerializerOptions.METHOD, SerialMethod.XML);
             so.set(SerializerOptions.OMIT_XML_DECLARATION, YesNo.NO);
             Serializer serializer = Serializer.get(new
FileOutputStream(outputFile), so);
             Item item = processor.iter().next();
             serializer.serialize(item);
             processor.close();
         } catch (QueryException e) {
             e.printStackTrace();
         } catch (IOException e) {
             e.printStackTrace();
         }
     }
======================