code: public final void xmlWriteOn(FormattedWriter writer, String tagName) throws IOException
      {
          Link link = getHead();
          if (link != null)
          {
              writer.newLine();
              writer.startTag(tagName);
              writer.indent();
  
              while (link != null)
              {
                  writer.newLine();
                  link.xmlWriteOn(writer);
                  link = link.getNextPhysicalLink();
              }
  
              writer.outdent();
              writer.newLine();
              writer.endTag(tagName);
          }
      }
docs: Used when the transactional list is NOT part of a prioritized list.
  
  @param writer
  @param tagName
  @throws IOException