import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.w3c.dom.Node;

/**
 * The XPathAPI class provides methods to evaluate XPath expressions and select nodes or node lists from an XML document.
 * It uses the javax.xml.xpath.XPath and javax.xml.xpath.XPathFactory classes to create and evaluate XPath expressions.
 *
 * <p>Example usage:</p>
 * <pre>
 * {@code
 * XPathAPI xPathAPI = new XPathAPI();

    }

    /**
     * Extracts strings from a document using the specified XPath expression.
     *
     * @param document the DOM document to extract strings from
     * @param path the XPath expression to evaluate
     * @return an array of strings extracted from the document
     */
    protected String[] getStringsByXPath(final Document document, final String path) {
        try {

 * <p>
 * This class extends {@link HtmlTransformer} and overrides the {@link #storeData(ResponseData, ResultData)} method
 * to parse the HTML content, evaluate XPath expressions, and generate the XML output.
 * </p>
 * <p>
 * The class supports various XPath result types, including BOOLEAN, NUMBER, STRING, NODESET, and NODE.

 */
public interface Rule extends Serializable {

    /**
     * Determines if the given response data matches the rule.
     *
     * @param responseData the response data to be evaluated
     * @return true if the response data matches the rule, false otherwise
     */
    boolean match(ResponseData responseData);

    /**
     * Retrieves the unique identifier for the rule.
     *