Java XML Node Append canAppend(Node node, Node parentNode)

Description

Checks if the node can be appended on the given parent node

License

Apache License

Parameter

Parameter	Description
node	The given node
parentNode	The given parent node

Return

True if the given node can be appended on the parent node

Declaration

public static boolean canAppend(Node node, Node parentNode) 

Method Source Code

//package com.java2s;
/*/*from  ww 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.Node;

public class Main {
    /**
     * Checks if the node can be appended on the given parent node
     *
     * @param node
     *            The given node
     * @param parentNode
     *            The given parent node
     * @return True if the given node can be appended on the parent node
     */
    public static boolean canAppend(Node node, Node parentNode) {
        if (node == null || parentNode == null || node == parentNode || isAncestorOf(node, parentNode)) {
            return false;
        }
        return true;
    }

    /**
     * Checks whether a node is ancestor of another node.
     *
     * @param node
     *            The potential ancestor node
     * @param descendant
     *            The potential descendant node
     * @return True if node is ancestor of the descendant node
     */
    public static boolean isAncestorOf(Node node, Node descendant) {
        if (node == null || descendant == null) {
            return false;
        }
        for (Node currentNode = descendant.getParentNode(); currentNode != null; currentNode = currentNode
                .getParentNode()) {
            if (currentNode == node) {
                return true;
            }
        }
        return false;
    }
}

Related

1. addImageSource(Node test, List holder)
2. addNodeValue(Node node, String name, boolean value)
3. addValue(Node node, String value)
4. appendChild(Node parent, Node child)
5. appendForeignChild(Node node, Node foreignChild)