code: public String getFields() {
  
          if (m_parameters.getFields() == null) {
              return "";
          }
          StringBuffer result = new StringBuffer();
          Iterator<String> it = m_parameters.getFields().iterator();
          while (it.hasNext()) {
              result.append(it.next());
              result.append(" ");
          }
          return result.toString();
      }
docs: Gets the current fields list.<p>
  
  @return the fields to search