Returns the first child of XML node that has the given name, or null. - Java XML

Java examples for XML:XML Node Child

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Description

Returns the first child of XML node that has the given name, or null.

Demo Code

/*/*from www  .  ja va  2s.  co m*/
 * Copyright (c) 2008, IETR/INSA of Rennes
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *   * Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *   * Neither the name of the IETR/INSA of Rennes nor the names of its
 *     contributors may be used to endorse or promote products derived from this
 *     software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
 * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
//package com.java2s;

import org.w3c.dom.Node;

public class Main {
    /**
     * Returns the first child of <code>node</code> that has the given name, or
     * <code>null</code>.
     * 
     * @param node
     *            A node.
     * @param name
     *            The name of the node we are looking for.
     * @return The first node whose name matches, or <code>null</code>.
     */
    public static Node getFirstChildNamed(Node node, String name) {
        return getFirstSiblingNamed(node.getFirstChild(), name);
    }

    /**
     * Returns the first sibling of <code>node</code>, or <code>node</code>
     * itself, which has the given name. If none is found, the function returns
     * <code>null</code>.
     * 
     * @param node
     *            A node.
     * @param name
     *            The name of the node we are looking for.
     * @return The first node whose name matches, or <code>null</code>.
     */
    public static Node getFirstSiblingNamed(Node node, String name) {
        while (node != null && !node.getNodeName().equals(name)) {
            node = node.getNextSibling();
        }

        return node;
    }
}

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