Java XML Element Check isEmptyElement(Element el)

Description

Check that an element is empty, i.e., it contains no non-whitespace text or elements as children.

License

Apache License

Parameter

Parameter	Description
el	the element

Return

true if the element is empty, false if not.

Declaration

public static boolean isEmptyElement(Element el) 

Method Source Code

//package com.java2s;
/*/*w w  w  . j  a v  a2  s. c o m*/
 * 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.Element;

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

public class Main {
    /**
     * Check that an element is empty, i.e., it contains no non-whitespace text or
     * elements as children.
     * @param el the element
     * @return <code>true</code> if the element is empty, <code>false</code> if not.
     */
    public static boolean isEmptyElement(Element el) {
        NodeList nl = el.getChildNodes();
        int len = nl.getLength();
        for (int i = 0; i < len; ++i) {
            switch (nl.item(i).getNodeType()) {
            case Node.CDATA_SECTION_NODE:
            case Node.TEXT_NODE:
                String s = nl.item(i).getNodeValue();
                if (s != null && s.trim().length() > 0) {
                    return false;
                }
                break;
            case Node.ELEMENT_NODE:
                return false;
            }
        }
        return true;
    }
}

Related

1. isComputedGoal(final Element element)
2. isElement(XMLStreamReader xmlRdr, int eventType, String tagName)
3. isElementExistsByTagName(final Element element, final String tagName)
4. isElementNamed(Element e, String ns, String localName)
5. isEmpty(final Element el)
6. isExtension(Element element)
7. isGateway(Element element)
8. isHTMLElement(Element elem)
9. isInfoNode(Element e)