Java class to export text to XML creating xml file | Clase Java para exportar texto a XML creando un fichero xml

ExportXML.java

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package ejercicio8bdoracle;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JOptionPane;
import javax.xml.parsers.*;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import static jdk.nashorn.internal.runtime.Debug.id;
import org.w3c.dom.*;
import org.xml.sax.SAXException;

/**
 *
 * @author manrique
 */
public class ExportXML {
        
    //variables
    public DocumentBuilderFactory docFactory;
    public DocumentBuilder docBuilder;
    public Document document;
    public Element elementRoot, column, value;
    
    public void initClases() throws SAXException, IOException, ParserConfigurationException  {                                             
            docFactory = DocumentBuilderFactory.newInstance();
            docBuilder = docFactory.newDocumentBuilder();
            //create elementRoot                                                                                     
    }//init clases end
        
    public void addRootElement( String elementChild) {
        //ROOT ELEMENT     
        document = docBuilder.newDocument();
        elementRoot = document.createElement(elementChild.trim());
        document.appendChild(elementRoot);
    }//add elementRoot
    
    public void addColumn(String elementName) {
        
        column = document.createElement(elementName.trim());        
        elementRoot.appendChild(column);                     
    }//add element to xml file
    
    public void addColumnValue(String elementName, String elementValue) {
        value = document.createElement(elementName.trim());
        value.setTextContent(elementValue.trim());        
        column.appendChild(value);        
    }
    
    public void writeXMLFile(String filePath) throws TransformerConfigurationException, TransformerException {
        TransformerFactory transformerFactory = TransformerFactory.newInstance();
        Transformer transformer = transformerFactory.newTransformer();
        //transformer properties
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        
        DOMSource source = new DOMSource(document);
        File fichero = new File(filePath);
        //StreamResult result = new StreamResult(new File (filePath));       
        StreamResult result = new StreamResult(fichero);        
        System.out.println(fichero.getAbsolutePath());
        transformer.transform(source, result);        
    }//write all in xml file last step    
    
    
}//end class