Search up the tree for a given node : DOM Tree « XML « Java






  1. Java
  2. XML
  3. DOM Tree

Search up the tree for a given node

  
/**********************************************************************************
*
* Copyright (c) 2003, 2004 The Regents of the University of Michigan, Trustees of Indiana University,
*                  Board of Trustees of the Leland Stanford, Jr., University, and The MIT Corporation
*
* Licensed under the Educational Community License Version 1.0 (the "License");
* By obtaining, using and/or copying this Original Work, you agree that you have read,
* understand, and will comply with the terms and conditions of the Educational Community License.
* You may obtain a copy of the License at:
*
*      http://cvs.sakaiproject.org/licenses/license_1_0.html
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
* AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**********************************************************************************/


import org.w3c.dom.Node;

public class Utils {

  /**
   * Search up the tree for a given node
   * @param currentNode Starting point for our search
   * @param tagName Node name to look up
   * @return matching Node (null if none)
   */
  public static Node getPreviousNodeByName(Node currentNode, String tagName) {
    Node node = currentNode.getParentNode();

    while ((node != null) && (!node.getNodeName().equals(tagName))) {
      node = node.getParentNode();
    }
    return node;
  }

}








Related examples in the same category

1.Creating a new DOM tree
2.Create new DOM tree with fully qualified element names
3.Traverse the DOM tree as a list
4.Traverse the DOM tree using TreeWalker
5.Reading a DOM tree from XML document
6.Copying a Subtree of Nodes in a DOM Document
7.Copying a Subtree of Nodes from One DOM Document to Another
8.Saving a DOM tree to XML file javax.xml.parsers (JAXP)
9.Using ranges in DOM tree
10.Accessing different types of DOM tree nodes
11.Manipulate w3c DOM trees
12.Returns an iterator over the children of the given element with the given tag name
13.Gets the child of the specified element having the specified name. If the child with this name doesn't exist then null is returned instead.
14.Gets the child of the specified element having the specified unique name
15.Traverse a DOM tree in order to get information about the document.
16.Get this Document's root node
17.Returns the concatenated child text of the specified node.
18.Get the first child of the specified type.
19.Get the first child's content ( ie it's included TEXT node ).
20.Get the first direct child with a given type
21.Print Tree node
22.DOM Util: get Child Text
23.Search earlier siblings for a given node
24.Search for a named child of a given node
25.Search our next siblings for a given node
26.Return the next sibling with a given name and type
27.Get Child Content
28.Traverse a DOM tree in order to print a document that is parsed.