Java Utililty Methods XML First Child Element

List of utility methods to do XML First Child Element

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Description

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

Method

ElementgetFirstChildElementByName(Element root, String tagName)
get First Child Element By Name 
NodeList nl = root.getChildNodes();
for (int i = 0; i < nl.getLength(); i++) {
    Node child = nl.item(i);
    if (child.getNodeType() != Node.ELEMENT_NODE) {
        continue;
    if (tagName.equals(child.getNodeName())) {
        return (Element) child;
...
OptionalgetFirstChildElementByName(final Element parent, final String name)
Returns the first element in the parent that match the specified name. 
return getChildElementsByName(parent, name).stream().findFirst();
ElementgetFirstChildElementByName(Node node, String name)
Get the first child Element of the supplied node that matches a given tag name. 
NodeList children = node.getChildNodes();
int childCount = children.getLength();
for (int i = 0; i < childCount; i++) {
    Node child = children.item(i);
    if (child != null && child.getNodeType() == Node.ELEMENT_NODE && child.getNodeName() != null
            && child.getNodeName().equals(name)) {
        return (Element) child;
return null;
ElementgetFirstChildElementByTagName(Element element, String name)
get First Child Element By Tag Name 
boolean found = false;
Element result = null;
NodeList nl = element.getChildNodes();
for (int i = 0; i < nl.getLength() && !found; i++) {
    if (nl.item(i) instanceof Element) {
        if (name.equals(nl.item(i).getNodeName())) {
            result = (Element) nl.item(i);
            found = true;
...
ElementgetFirstChildElementByTagName(Node element, String tagName)
Gets the first element with the given tag name in the immediate child elements. 
NodeList list = element.getChildNodes();
int size = list.getLength();
if (size > 0) {
    for (int i = 0; i < size; i++) {
        Node node = list.item(i);
        if (node instanceof Element) {
            Element e = (Element) node;
            if (e.getTagName().equals(tagName)) {
...
ElementgetFirstChildElementCaseInsensitive(Element root, String elementName)
get First Child Element Case Insensitive 
NodeList nl = root.getChildNodes();
if (nl.getLength() > 1) {
    for (int i = 0; i < nl.getLength(); i++) {
        Node node = nl.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE && (node.getNodeName().equalsIgnoreCase(elementName))) {
            return (Element) node;
return null;
ElementgetFirstChildElementInternal(final Node node, final boolean useNamespaces, final String namespaceURI, final String localName)
Helper method to get the first child Element of a Node that matches specified criteria. 
final NodeList children = node.getChildNodes();
final int length = children.getLength();
for (int i = 0; i < length; i++) {
    final Node child = children.item(i);
    if (Node.ELEMENT_NODE == child.getNodeType()) {
        if (matches(child, useNamespaces, namespaceURI, localName)) {
            return (Element) child;
return null;
NodegetFirstChildElementNode(Node node)
get First Child Element Node 
if (node == null)
    return (null);
NodeList children = node.getChildNodes();
for (int i = 0; i < children.getLength(); i++) {
    Node child = children.item(i);
    if (Node.ELEMENT_NODE == child.getNodeType())
        return (child);
return (null);
ElementgetFirstChildElementNS(Element elm, String tns, String localName)
get First Child Element NS 
if (tns == null && localName == null)
    return getFirstChildElement(elm);
if (tns == null || tns.length() == 0)
    return getFirstChildElement(elm, localName);
NodeList nl = elm.getChildNodes();
for (int c = 0; c < nl.getLength(); c++) {
    Node node = nl.item(c);
    if (node.getNodeType() != Node.ELEMENT_NODE)
...
ElementgetFirstChildElementNS(Node parent, String uri)
get First Child Element NS 
Node child = parent.getFirstChild();
while (child != null) {
    if (child.getNodeType() == Node.ELEMENT_NODE) {
        String childURI = child.getNamespaceURI();
        if (childURI != null && childURI.equals(uri)) {
            return (Element) child;
    child = child.getNextSibling();
return null;