private XMLParser() {
		DocumentBuilderFactory docBuilderFactory = DocumentBuilderFactory.newInstance();
		try {
			this.docBuilder = docBuilderFactory.newDocumentBuilder();
		} catch (ParserConfigurationException e) { 
			//processSearch can't run if this happens, since docBuilder is null
			Log.getLogger().log(Level.SEVERE, "ParserConfigurationException", e);
		}
	}