Java Utililty Methods XPath Create

List of utility methods to do XPath Create

  1. HOME
  2. Java
  3. X
  4. XPath Create

Description

The list of methods to do XPath Create are organized into topic(s).

Method

StringgetXPathExpression(final Node node)
Returns the unique XPath expression for the given node. 
String xpathExpression = node.getNodeName();
if (node.getParentNode() != null) {
    int index = 0;
    Node prec = node;
    while (prec != null) {
        if (prec.getNodeName().equals(node.getNodeName())) {
            index++;
        prec = prec.getPreviousSibling();
    if (node.getParentNode() instanceof Document) {
        ; 
    } else {
        xpathExpression = getXPathExpression(node.getParentNode()) + "/" + xpathExpression 
                + "[" + String.valueOf(index) + "]"; 
return xpathExpression;
XPathExpressiongetXPathExpression(String expression)
get X Path Expression 
return getXPath().compile(expression);
XPathExpressiongetXPathExpression(String path)
get X Path Expression 
path = path.trim();
try {
    XPath xp = XPathFactory.newInstance().newXPath();
    XPathExpression expr = xp.compile(path);
    return expr;
} catch (Exception ex) {
    throw new RuntimeException(ex);
XPathExpressiongetXPathExpression(String xpath, NamespaceContext namespaceContext)
get X Path Expression 
return createXPathExpression(xpath, namespaceContext);
XPathExpressiongetXPathExpression(String xpathStr)
Get xpath expression object by xpath string 
return XPathFactory.newInstance().newXPath().compile(xpathStr);
XPathExpressiongetXPathExpression(String xPathString)
get X Path Expression 
SoftReference<XPathExpression> ref = xPathExpressionsCache.get(xPathString);
XPathExpression expression = ref == null ? null : ref.get();
if (expression == null)
    xPathExpressionsCache.put(xPathString,
            new SoftReference<XPathExpression>(expression = getSharedXPath().compile(xPathString)));
return expression;
NodegetXpathExpressionNode(Object xprContext, String xpExpression)
get Xpath Expression Node 
XPath xpath = XPathFactory.newInstance().newXPath();
XPathExpression xpe = xpath.compile(xpExpression);
Node node = (Node) xpe.evaluate(xprContext, XPathConstants.NODE);
return node;
StringgetXpathExpressionValue(Object xprContext, String xpExpression)
get Xpath Expression Value 
XPath xpath = XPathFactory.newInstance().newXPath();
XPathExpression xpe = xpath.compile(xpExpression);
Node valueNode = (Node) xpe.evaluate(xprContext, XPathConstants.NODE);
String value = null;
if (valueNode != null)
    value = valueNode.getNodeValue();
if (value != null) {
    if (valueNode.getNodeType() == Node.TEXT_NODE) {
...
StringgetXPathExprFromNode(Node node)
Generates an XPath expression that will return only the given node as its result. 
short nodeType = getNodeType(node);
switch (nodeType) {
case Node.ELEMENT_NODE:
case Node.TEXT_NODE:
case Node.PROCESSING_INSTRUCTION_NODE:
    return getXPathFromVector(getVectorPathFromNode(node));
case Node.DOCUMENT_NODE:
    return "/";
...
StringgetXPathExprFromNode(Node node)
Generates an XPath expression that will return only the given node as its result. 
short nodeType = getNodeType(node);
switch (nodeType) {
case Node.ELEMENT_NODE:
case Node.TEXT_NODE:
case Node.PROCESSING_INSTRUCTION_NODE:
    return getXPathFromVector(getVectorPathFromNode(node));
case Node.DOCUMENT_NODE:
    return "/";
...