@Override
  public int writeData(OutputStream out, DbData data) throws Exception {
    XMLStreamWriter sw = _staxOutFactory.createXMLStreamWriter(out, "UTF-8");
    sw.writeStartDocument();
    sw.writeStartElement(FIELD_TABLE);
    Iterator<DbRow> it = data.rows();
    while (it.hasNext()) {
      DbRow row = it.next();
      sw.writeStartElement(FIELD_ROW); // <row>

      sw.writeStartElement(DbRow.Field.id.name());
      sw.writeCharacters(String.valueOf(row.getId()));
      sw.writeEndElement();

      sw.writeStartElement(DbRow.Field.firstname.name());
      sw.writeCharacters(row.getFirstname());
      sw.writeEndElement();

      sw.writeStartElement(DbRow.Field.lastname.name());
      sw.writeCharacters(row.getLastname());
      sw.writeEndElement();

      sw.writeStartElement(DbRow.Field.zip.name());
      sw.writeCharacters(String.valueOf(row.getZip()));
      sw.writeEndElement();

      sw.writeStartElement(DbRow.Field.street.name());
      sw.writeCharacters(row.getStreet());
      sw.writeEndElement();

      sw.writeStartElement(DbRow.Field.city.name());
      sw.writeCharacters(row.getCity());
      sw.writeEndElement();

      sw.writeStartElement(DbRow.Field.state.name());
      sw.writeCharacters(row.getState());
      sw.writeEndElement();

      sw.writeEndElement(); // </row>
    }
    sw.writeEndElement();
    sw.writeEndDocument();
    sw.close();
    return -1;
  }
  public void exportAsXML(XMLStreamWriter xmlWriter) throws IOException, XMLStreamException {
    if (xmlWriter == null) {
      String message = Logging.getMessage("Export.UnsupportedOutputObject");
      Logging.logger().warning(message);
      throw new IllegalArgumentException(message);
    }

    xmlWriter.writeStartElement("Record");

    xmlWriter.writeAttribute("id", Integer.toString(this.getRecordNumber()));
    xmlWriter.writeAttribute(
        "shape", this.getShapeType().substring(this.getShapeType().lastIndexOf("Shape") + 5));
    xmlWriter.writeAttribute("parts", Integer.toString(this.getNumberOfParts()));
    xmlWriter.writeAttribute("points", Integer.toString(this.getNumberOfPoints()));
    xmlWriter.writeCharacters("\n");

    for (Map.Entry<String, Object> a : this.getAttributes().getEntries()) {
      xmlWriter.writeStartElement("Attribute");

      xmlWriter.writeAttribute("name", a.getKey() != null ? a.getKey().toString() : "");
      xmlWriter.writeAttribute("value", a.getValue() != null ? a.getValue().toString() : "");

      xmlWriter.writeEndElement(); // Attribute
      xmlWriter.writeCharacters("\n");
    }

    if (this.getNumberOfParts() > 0) {
      VecBuffer vb = this.getPointBuffer(0);
      for (LatLon ll : vb.getLocations()) {
        xmlWriter.writeStartElement("Point");
        xmlWriter.writeAttribute("x", Double.toString(ll.getLatitude().degrees));
        xmlWriter.writeAttribute("y", Double.toString(ll.getLongitude().degrees));
        xmlWriter.writeEndElement(); // Point
        xmlWriter.writeCharacters("\n");
      }
    }

    // TODO: export record-type specific fields

    xmlWriter.writeEndElement(); // Record
  }