Java Utililty Methods XML Element to String

DOMSource source = new DOMSource(element);
StreamResult result = new StreamResult(out);
TransformerFactory transFactory = TransformerFactory.newInstance();
Transformer transformer = transFactory.newTransformer();
transformer.transform(source, result);

DOMSource source = new DOMSource(element);
StreamResult result = new StreamResult(out);
TransformerFactory transFactory = TransformerFactory.newInstance();
Transformer transformer = transFactory.newTransformer();
transformer.transform(source, result);

StringBuffer buf = new StringBuffer();
buf.append(e.getTagName()).append("{");
for (int i = 0; i < e.getAttributes().getLength(); i++) {
    if (i > 0) {
        buf.append(", ");
    Node n = e.getAttributes().item(i);
    buf.append(attributeName((Attr) n)).append("=").append(n.getNodeValue());
...

if (el == null)
    return "";
Document document = el.getOwnerDocument();
DOMImplementationLS domImplLS = (DOMImplementationLS) document.getImplementation();
LSSerializer serializer = domImplLS.createLSSerializer();
return serializer.writeToString(el);

DOMImplementationLS lsImpl = (DOMImplementationLS) element.getOwnerDocument().getImplementation()
        .getFeature("LS", "3.0");
LSSerializer serializer = lsImpl.createLSSerializer();
serializer.getDomConfig().setParameter("xml-declaration", false); 
return serializer.writeToString(element);

Document document = element.getOwnerDocument();
DOMImplementationLS domImplLS = (DOMImplementationLS) document.getImplementation();
LSSerializer serializer = domImplLS.createLSSerializer();
String result = serializer.writeToString(element);
return result;

Converts an Element object into String representation

DOMSource domSource = new DOMSource(element);
StringWriter stringWriter = new StringWriter();
StreamResult streamResult = new StreamResult(stringWriter);
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.transform(domSource, streamResult);
return stringWriter.toString();
...

String str = prefix + "<" + elt.getNodeName();
return str;

try {
    final DOMSource domSource = new DOMSource(element);
    final StringWriter writer = new StringWriter();
    final StreamResult result = new StreamResult(writer);
    final TransformerFactory tf = TransformerFactory.newInstance();
    final Transformer transformer = tf.newTransformer();
    transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
    transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
...

NodeList children = element.getChildNodes();
int length = children.getLength();
for (int n = 0; n < length; ++n) {
    Node next = children.item(n);
    if (next.getNodeType() == Node.TEXT_NODE)
        return next.getNodeValue().trim();
return null;
...