Metacat

       cachedQuerySpec.printSQL(false).equals(qspec.printSQL(false)))

    { //use the cached resultset if the query was the same as the last

      MetacatResultSet mrs = (MetacatResultSet)sess.getAttribute("results");

      //if the query is the same and the session contains the query

      //results, return those instead of rerunning the query

      if(mrs != null)

    try

    {

      //cache the query result and the query

      sess.setAttribute("query", qspec);

      MetacatResultSet mrs = new MetacatResultSet(resultset.toString());

      sess.setAttribute("results", mrs);

     if(returnfield_id < 0){

         logMetacat.warn("Error in getting returnfield id from"

                                  + "xml_returnfield table");

     }

     // get the hashtable containing the docids that already in the

     Hashtable partOfDoclistBackup = new Hashtable();

     _keys = partOfDoclist.keys();

     while (_keys.hasMoreElements()){

         partOfDoclistBackup.put(key, partOfDoclist.get(key));

     }

  public MetacatResultSet(Document d)

    throws Exception

  {

    NodeList nl = XPathAPI.selectNodeList(d, "//document");

    for(int i=0; i<nl.getLength(); i++)

    { //get each of the document nodes

  public MetacatResultSet(String xmlDoc)

    throws SAXException, IOException

  {

    XMLReader parser = null;

    String parserName = MetaCatUtil.getOption("saxparser");

    parser = XMLReaderFactory.createXMLReader(parserName);

    parser.setContentHandler(this);

    parser.setErrorHandler(this);

    parser.parse(new InputSource(new StringReader(xmlDoc)));

  }

  /**