Java XML Attribute from Element getIdAttribute(Element domElement)

Description

Gets the ID attribute of a DOM element.

License

Open Source License

Parameter

Parameter	Description
domElement	the DOM element

Return

the ID attribute or null if there isn't one

Declaration

public static Attr getIdAttribute(Element domElement) 

Method Source Code

//package com.java2s;
/*// ww  w . j  a  va 2 s .  co m
 * Licensed to the University Corporation for Advanced Internet Development, 
 * Inc. (UCAID) under one or more contributor license agreements.  See the 
 * NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The UCAID 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.Attr;

import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;

public class Main {
    /**
     * Gets the ID attribute of a DOM element.
     * 
     * @param domElement the DOM element
     * 
     * @return the ID attribute or null if there isn't one
     */
    public static Attr getIdAttribute(Element domElement) {
        if (!domElement.hasAttributes()) {
            return null;
        }

        NamedNodeMap attributes = domElement.getAttributes();
        Attr attribute;
        for (int i = 0; i < attributes.getLength(); i++) {
            attribute = (Attr) attributes.item(i);
            if (attribute.isId()) {
                return attribute;
            }
        }

        return null;
    }
}

Related

1. getElementValues(final String elementName, final String attributeValue, final InputStream is)
2. getFirstAttribute(Element elem, String name, String attrName)
3. getFloatAttribute(Element element, String name)
4. getFloatAttribute(String name, Element el)
5. getHeadAttr(Element annotU, String attrName)
6. getIdAttributeValue(Element elem, String name)
7. getIntAttr(Element elem, String attName)
8. getIntAttribute(Element el, String name)
9. getIntAttribute(Element elem, String attName, boolean mandatory, int defaultValue)