protected String targetNodePath = "//HTML/BODY | //@alt | //@title";

    /** Cache for XPathAPI instances to improve performance. */
    protected LoadingCache<String, XPathAPI> xpathAPICache;

    /** Cache duration in minutes for XPathAPI instances. */
    protected long cacheDuration = 10; // min

    /**
     * Creates a new HtmlXpathExtractor instance.
     */
    public HtmlXpathExtractor() {
        super();
    }

    /**

     */
    protected Class<?> dataClass = null;

    /**
     * The XPathAPI cache.
     */
    protected LoadingCache<String, XPathAPI> xpathAPICache;

    /**
     * The cache duration in minutes.
     */
    protected long cacheDuration = 10; // min

    /**
     * Constructs a new instance of {@code XmlTransformer}.
     * This constructor initializes the transformer with default settings.
     */