Java XML First Child Element getFirstChildElement(Node parent)

Description

Finds and returns the first child element node.

License

Apache License

Declaration

public static Element getFirstChildElement(Node parent) 

Method Source Code

//package com.java2s;
/*//  www. jav a  2s  . 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.*;

public class Main {
    /**
     * Finds and returns the first child element node.
     */
    public static Element getFirstChildElement(Node parent) {

        // search for node
        Node child = parent.getFirstChild();
        while (child != null) {
            if (child.getNodeType() == Node.ELEMENT_NODE) {
                return (Element) child;
            }
            child = child.getNextSibling();
        }

        // not found
        return null;

    }

    /**
     * Finds and returns the first child node with the given name.
     */
    public static Element getFirstChildElement(Node parent, String elemName) {

        // search for node
        Node child = parent.getFirstChild();
        while (child != null) {
            if (child.getNodeType() == Node.ELEMENT_NODE) {
                if (child.getNodeName().equals(elemName)) {
                    return (Element) child;
                }
            }
            child = child.getNextSibling();
        }

        // not found
        return null;

    }

    /**
     * Finds and returns the first child node with the given name.
     */
    public static Element getFirstChildElement(Node parent, String elemNames[]) {

        // search for node
        Node child = parent.getFirstChild();
        while (child != null) {
            if (child.getNodeType() == Node.ELEMENT_NODE) {
                for (int i = 0; i < elemNames.length; i++) {
                    if (child.getNodeName().equals(elemNames[i])) {
                        return (Element) child;
                    }
                }
            }
            child = child.getNextSibling();
        }

        // not found
        return null;

    }

    /**
     * Finds and returns the first child node with the given name and
     * attribute name, value pair.
     */
    public static Element getFirstChildElement(Node parent, String elemName, String attrName, String attrValue) {

        // search for node
        Node child = parent.getFirstChild();
        while (child != null) {
            if (child.getNodeType() == Node.ELEMENT_NODE) {
                Element element = (Element) child;
                if (element.getNodeName().equals(elemName) && element.getAttribute(attrName).equals(attrValue)) {
                    return element;
                }
            }
            child = child.getNextSibling();
        }

        // not found
        return null;

    }
}

Related

1. getFirstChildElement(Node node)
2. getFirstChildElement(Node node)
3. getFirstChildElement(Node node)
4. getFirstChildElement(Node node)
5. getFirstChildElement(Node node, String tag)
6. getFirstChildElement(Node parent)
7. getFirstChildElement(Node parent)
8. getFirstChildElement(Node parent)
9. getFirstChildElement(Node parent)