merging doms

[lowbk]

suppose I have created a dom like the one below
------------------------------------------
<?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?>
<field><fieldname>field1</fieldname><visible>t</visible></field>
--------------------------------------------

and I want to merge it with another dom with the above dom as a child ie the expected output should be like
------------------------------------------
<?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?>
<blk>
<name> block </name>
<field><fieldname>field1</fieldname><visible>t</visible></field>
</blk>
--------------------------------------------
I'd tried using appendchild(child dom) and importNode(child dom, true) on the child dom but keeps getting error.

any suggestions? maybe there is some API that can perform this operation?

 

[toolkit]

I suggest you take a look at the excellent book &quot;Java and XML&quot; by Brett McLaughlin, and look for the 'dreaded wrong document exception' explanation. In short, you must first import the node, which creates a new node compatible with the target. Something like the following should work:

Element blk   = blkDoc.getDocumentElement();
Element field = fieldDoc.getDocumentElement();
Element imported = (Element)blkDoc.importNode( field );
blk.appendChild( imported );

Hope this helped. Cheers, Neil

 

[toolkit]

Damn,
I skimmed through your question, and didn't spot that you had already tried importNode(). Sorry :-(. Hope you manage to figure it out. Perhaps if you posted the code snippet?
Neil

 

[lowbk]

for the record, i managed to solve it. I'd used importNode wrongly. the correct code is as follows

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document thedom = db.newDocument();

Element starttag = thedom.createElement(&quot;blk&quot;
//...codes for appending the text

starttag.appendChild(thedom.importNode(fielddom.getDocumentElement(), true));
//assuming fielddom is in existent and is well-structured

thans to Neil