Java XML Element Get getElementList(Document doc, String expression)

Description

get Element List

License

Apache License

Declaration

public static List<Element> getElementList(Document doc,
            String expression) throws XPathExpressionException 

Method Source Code

//package com.java2s;
/**//from   ww w.ja va 2  s .  c om
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import javax.xml.xpath.*;

import java.util.*;

public class Main {
    public static List<Element> getElementList(Document doc,
            String expression) throws XPathExpressionException {
        XPathFactory xPathFactory = XPathFactory.newInstance();
        XPath xPath = xPathFactory.newXPath();
        XPathExpression expr = xPath.compile(expression);
        NodeList nodeList = (NodeList) expr.evaluate(doc,
                XPathConstants.NODESET);
        List<Element> elementList = new ArrayList<Element>();
        for (int i = 0; i < nodeList.getLength(); i++) {
            Node item = nodeList.item(i);
            if (item instanceof Element) {
                elementList.add((Element) item);
            }
        }
        return elementList;
    }
}

Related

1. getElementId(Element element)
2. getElementIndex(Element ele)
3. getElementIndex(Element element)
4. getElementLanguage(Element elemNode, String defaultLangCode)
5. getElementLanguage(Element elemNode, String defaultLangCode)
6. getElementList(Element dataRoot, String name)
7. getElementList(Element dataRoot, String name)
8. getElementList(Element element)
9. getElementList(Element element, String name)