Select Elements from parent element by XPath - Java XML

Java examples for XML:XPath

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Description

Select Elements from parent element by XPath

Demo Code

// This program is free software; you can redistribute it and/or modify it
//package com.java2s;
import org.w3c.dom.*;

import javax.xml.xpath.*;
import java.util.*;

public class Main {
    public static List<Element> SelectElements(Element parent,
            String expression) {//from w w  w.j  a v a2 s.  co  m
        List<Element> nodes = new ArrayList<Element>();
        XPath xpath = getXPath();
        try {
            XPathExpression xpathExpression = xpath.compile(expression);
            NodeList nodeList = (NodeList) xpathExpression.evaluate(parent,
                    XPathConstants.NODESET);
            for (int i = 0; i < nodeList.getLength(); i++) {
                nodes.add((Element) (nodeList.item(i)));
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        return nodes;
    }

    public static XPath getXPath() {
        return getXPathFactory().newXPath();
    }

    public static XPathFactory getXPathFactory() {
        return XPathFactory.newInstance();
    }
}

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