Java XML Element Get by ID getElemenById(Document document, String elementId)

Description

get Elemen By Id

License

Open Source License

Parameter

Parameter	Description
document	a parameter
elementId	a parameter

Declaration

public static Element getElemenById(Document document, String elementId) 

Method Source Code

//package com.java2s;
/******************************************************************************* 
 * Copyright (c) 2007 Red Hat, Inc.//from w  ww  . j av a  2s .c  o m
 * Distributed under license by Red Hat, Inc. All rights reserved.
 * This program is 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:
 *     Red Hat, Inc. - initial API and implementation
 ******************************************************************************/

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

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

public class Main {
    final public static String ID_ATTRIBUTE = "id";

    /**
     * 
     * @param document
     * @param elementId
     * @return
     */
    public static Element getElemenById(Document document, String elementId) {

        Element element = document.getDocumentElement();

        NodeList children = element.getChildNodes();
        for (int i = 0; i < children.getLength(); i++) {
            Node child = children.item(i);
            if ((child.getNodeType() == Node.ELEMENT_NODE)
                    && elementId.equals(((Element) child).getAttribute(ID_ATTRIBUTE)))
                return (Element) child;

        }

        return null;

    }
}

Related

1. getElementById(Document doc, String id, Map idMap)
2. getElementById(Document document, String id)
3. getElementById(Document dom, String id)
4. getElementById(Document dom, String id, String localElementName)