Java XPath Create xpathNodes(Node node, String expression)

Description

xpath Nodes

License

Open Source License

Declaration

public static NodeList xpathNodes(Node node, String expression) throws XPathExpressionException 

Method Source Code

//package com.java2s;
/*-****************************************************************************** 
 * Copyright (c) 2014 Iwao AVE!./*from   w  ww  . j  a  v  a2  s  .co  m*/
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    Iwao AVE! - initial API and implementation and/or initial documentation
 *******************************************************************************/

import javax.xml.namespace.NamespaceContext;
import javax.xml.namespace.QName;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    public static NodeList xpathNodes(Node node, String expression) throws XPathExpressionException {
        return xpathNodes(node, expression, null);
    }

    public static NodeList xpathNodes(Node node, String expression, NamespaceContext nsContext)
            throws XPathExpressionException {
        return (NodeList) evaluateXpath(expression, node, XPathConstants.NODESET, nsContext);
    }

    public static Object evaluateXpath(String expression, Object node, QName returnType, NamespaceContext nsContext)
            throws XPathExpressionException {
        XPathFactory xpathFactory = XPathFactory.newInstance();
        XPath xpath = xpathFactory.newXPath();
        if (nsContext != null) {
            xpath.setNamespaceContext(nsContext);
        }
        return xpath.evaluate(expression, node, returnType);
        // XPathExpression xpathExpr = xpath.compile(expression);
        // return xpathExpr.evaluate(node, returnType);
    }
}

Related

1. xpath()
2. xpath(String expression)
3. xpath(String xml, String xpath)
4. xPath(String xPath)
5. xpathNode(Node node, String xpath)
6. xPathNodes(String expr, Object context)
7. xPathSearch(String input, String expression)