this.makeCollections = false;
this.dbName = dbName;
this.queries = new HashMap<String,Reference>();
File confFile = new File(xmldbDir,"conf.xml");
File dbDir = xmldbDir.getParentFile();
xmldb = new XMLDB(dbName,confFile);
String log4j = System.getProperty("log4j.configuration");
if (log4j == null) {
File lf = new File(dbDir,"log4j.xml");
if (!lf.exists()) {
String [] resources = { "log4j.dtd", "log4j.xml" };