Java Utililty Methods XML Element Find

List of utility methods to do XML Element Find

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Description

The list of methods to do XML Element Find are organized into topic(s).

Method

ListfindAllElementsByTagName(Element elem, String tagName)
find All Elements By Tag Name 
List<Element> ret = new LinkedList<Element>();
findAllElementsByTagName(elem, tagName, ret);
return ret;
voidfindAllElementsByTagNameNS(Element el, String nameSpaceURI, String localName, List elementList)
find All Elements By Tag Name NS 
if (localName.equals(el.getLocalName()) && nameSpaceURI.contains(el.getNamespaceURI())) {
    elementList.add(el);
Element elem = getFirstElement(el);
while (elem != null) {
    findAllElementsByTagNameNS(elem, nameSpaceURI, localName, elementList);
    elem = getNextElement(elem);
ElementfindComponentElement(Element root)
find Component Element 
if (root == null) {
    return null;
NodeList children = root.getChildNodes();
for (int i = 0; i < children.getLength(); i++) {
    Node child = children.item(i);
    if (child.getNodeType() == Node.ELEMENT_NODE) {
        Element trimmedElement = findComponentElement((Element) child);
...
ElementfindComponentElement(Element root)
find Component Element 
if (root == null) {
    return null;
NodeList children = root.getChildNodes();
for (int i = 0; i < children.getLength(); i++) {
    Node child = children.item(i);
    if (child.getNodeType() == Node.ELEMENT_NODE) {
        Element trimmedElement = findComponentElement((Element) child);
...
ElementfindElement(Element element, String elementName)
If there is no such element, one will be created on element . 
NodeList elements = element.getElementsByTagName(elementName);
if ((elements == null) || (elements.getLength() == 0)) {
    return createElement(element, elementName);
return (Element) elements.item(0);
ElementfindElement(Element element, String name)
find Element 
NodeList list = element.getChildNodes();
for (int i = 0; i < list.getLength(); i++) {
    Node child = (Node) list.item(i);
    if (child instanceof Element) {
        Element childEl = (Element) child;
        if (name.equals(childEl.getLocalName())) {
            return childEl;
        } else {
...
ElementfindElement(Element root, String localName, String namespace)
find Element 
return findElement(root, new QName(namespace, localName));
ElementfindElement(Element topElm, String localName, String namespace)
Find element. 
Stack<Element> stack = new Stack<Element>();
stack.push(topElm);
while (!stack.isEmpty()) {
    Element curElm = stack.pop();
    if ((curElm.getLocalName().equals(localName))
            && (namespacesAreSame(curElm.getNamespaceURI(), namespace))) {
        return curElm;
    NodeList childNodes = curElm.getChildNodes();
    for (int i = 0, ll = childNodes.getLength(); i < ll; i++) {
        Node item = childNodes.item(i);
        if (item.getNodeType() == Node.ELEMENT_NODE) {
            stack.push((Element) item);
return null;
ElementfindElement(final Element e, final String find)
Find a child element. 
for (Node child = e.getFirstChild(); child != null; child = child.getNextSibling()) {
    if (!(child instanceof Element)) {
        continue;
    final Element el = (Element) child;
    if (el.getNodeName().equals(find)) {
        return el;
return null;
ElementfindElement(final String idValue, final String idTagName, final String tagName, final Element root)
find element with tagName whose id tag is 'idTagName' and id value is 'id_value' 
String textVal = null;
final NodeList nl = root.getElementsByTagName(tagName);
if (nl != null && nl.getLength() > 0) {
    for (int i = 0; i < nl.getLength(); i++) {
        final Element ei = (Element) nl.item(i);
        final NodeList n2 = ei.getElementsByTagName(idTagName);
        if (n2 != null && n2.getLength() > 0) {
            for (int j = 0; j < n2.getLength(); j++) {
...