Hi ...

My program accesses 50 xml files one at a time, uses JAXP API and DOM parser to update each and puts the updated DOM into a new XML file. So, I will be left with 50 updated xml files. Its fine till now...

But what I want to accomplish is to have a SINGLE xml file as output instead of 50 different xml files.

i tried to append one dom to an other as a child element but it didnt work as we cannot append DOMs.

Is there any way to concatenate these XML files? Infact, I need to concatenate the first child of every XML file in to a single new xml file.
Any suggestion is greatly appreciated!

Thanks.
-Srivalli.

DOM 2 introdiced importNode method. Try to use it if your DOM implementation supports it. If not, you can write a recursive method which will make deep-copy of a DOM node and hence you'll be able to: a) create new document object, b) create copies of all root-nodes of those 50 documents and then c) append them as children to the newly created document.

Regards,
Armen

Hi armmarti....
Thanks for your reply.
I tried to implement hte recursive approach but failed.

Here is my code fragment...
-----------------------------
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
            DocumentBuilder db = dbf.newDocumentBuilder();
            doc = db.newDocument();
            r=doc.createElement("nmstat");
            Element n=(Element)currDocument.getDocumentElement().getFi rstChild();
            r.appendChild(n);
----------------------------------

It throws the following error...
-------------------------------------
Exception in thread "main" org.apache.crimson.tree.DomEx: WRONG_DOCUMENT_ERR: Th
at node doesn't belong in this document.
        at org.apache.crimson.tree.ParentNode.checkDocument(P arentNode.java:250)

        at org.apache.crimson.tree.ParentNode.appendChild(Par entNode.java:333)
        at anno.writeToDOS(anno.java:323)
---------------------------------------

Could you help me in fixing the error?
Can u provide me with a sample code, if possible.

Any help is greatly appreciated!

Hi all...
I could get my code working perfectly.

here it goes...
if (document==null)
document=currDocument;
else{
Element ele = (Element)currDocument.getDocumentElement().getFirs tChild();
if (ele!=null){
Node replacingNode = ((document).importNode(ele, true));
document.getDocumentElement().appendChild(replacin gNode);
}
}
---------------------
Thanks a lot for all your help.If it werent for ur help, I wouldn't have solved it!

Hey I am facing same prob can you please send me that whole code which is transforming many xml to one xml please..