Deleting child nodes from an xml

[reggie rui]

I have the following xml:

<Parent>
<Child name="a">
</Child>
<Child name="b">
</Child>
<Child name="c">
</Child>
</Parent>

I want to delete the child depending on the "name" attribute. Is there a way to do this ? i tried to do this with DOM but didnt work. Also, i can get the specific child node using XPath. But then again, how do i delete it from the xml ?

Thanks in Advance

[Paul Clapham]

If you look in the API documentation for the Node interface of DOM, you surely will find a method which deletes, or perhaps removes, a Node. Just scan down the list of methods until you find it. You would use that method once you have a reference to the node.

If you are still stuck, post your code and let's discuss it.

[Sharad Khanna]

You will need to parse the XML using either jdom or java.xpath libraries and delete the node.

reggie rui wrote:I have the following xml:

<Parent>
<Child name="a">
</Child>
<Child name="b">
</Child>
<Child name="c">
</Child>
</Parent>

I want to delete the child depending on the "name" attribute. Is there a way to do this ? i tried to do this with DOM but didnt work. Also, i can get the specific child node using XPath. But then again, how do i delete it from the xml ?

Thanks in Advance

[William Brogden]

i tried to do this with DOM but didnt work.

Why do people make statements like that and expect help

What is the code you wrote? What happened when you ran it?

You do realize that having modified the DOM in memory you still need to write it to a file, right?

Bill

[s ithu]

     public static void deletenode(String dest1, String ele) throws TransformerConfigurationException, TransformerException, FileNotFoundException, IOException 
     {
         File file = new File(dest1);
         if (file.exists())
         {
            Document doc=dom(dest1);
            
            // TransformerFactory tFactory = TransformerFactory.newInstance();
           // Transformer tFormer = tFactory.newTransformer();
            Element element = (Element)doc.getElementsByTagName(ele).item(0);
             //  Remove the node
            element.getParentNode().removeChild(element);
            //  Normalize the DOM tree to combine all adjacent nodes
          doc.normalize();
             //Save the Created XML on Local Disc using Transformation APIs 
            
             // Use a Transformer for output
            
           
       doc2file(doc,dest1);
         }
        else
         {
             System.out.println("File not found!");
         }
     }


 
    public static void doc2file(Document doc, String path) {
        try {
            Source source = new DOMSource(doc);
            File out = new File(path);
            Result result = new StreamResult(out);
            TransformerFactory factory = TransformerFactory.newInstance();
            Transformer transformer = factory.newTransformer();
            transformer.transform(source, result);
        } catch (TransformerConfigurationException e) {
            e.printStackTrace();
        } catch (TransformerException e) {
            e.printStackTrace();
        }
    }