Handling ends of branches in dom trees.

Question

Hi all,
I am currently trying to convert a XQueryResultSet into a org.w3c.dom.Document. So far I can extract all the nodes, and their attributes and children and place all of this information into the document. However when I get to the very end of any branch I am struggling on setting the text for the end node.
I currently have this piece of working code, which gives me everything except the text value for the final nodes.
//Get any children, no children means this node is
        // at the end of a branch.  So we get the node value
        if(parentElement.hasChildNodes()) {
            //Get the child list
            NodeList children = parent.getChildNodes();
            for(int index = 0; index < children.getLength(); index++) {
                Element nextChild = processNode(doc, children.item(index));
                parentElement.appendChild(nextChild);
        } else {
            //Append node value to element value
            //parentElement.setNodeValue(parent.getNodeValue());
        }When I unhash the line "parentElement.setNodeValue(parent.getNodeValue());" I get the following error reported in the exception trace.
oracle.xml.parser.v2.XMLDOMException: Node cannot be modified.
     at oracle.xml.parser.v2.XMLNode.setNodeValue(XMLNode.java:235)Could someone shed a bit of light on this. I'm not too sure this is the correct way of changing from XQueryResultSet to Document anyway, but most of it does work.
Kind regards
Simon

Answer 1

Hi all,
Eventually figured out how to do it. This is possibly not the most eligant of solutions and needs error detection, but in case anyone else comes across the same problem this is how I did it.
        if(parentElement.hasChildNodes()) {
            //Logging
            log.info("Processing child nodes");
            //Get the child list
            NodeList children = parent.getChildNodes();
            for(int index = 0; index < children.getLength(); index++) {
                Element nextChild = processNode(doc, children.item(index));
                parentElement.appendChild(nextChild);
        } else {
            log.info("Processing end element text");
            //Append node value to element value
            parent.normalize();  //This drags all the text nodes associated with this branch and appends them to parent.
            //Get the new nodes and process.
            //There sould only be one text node (no other type) but the
            // for loop could be changed later to handle any other type
            // required.
            if(parent.hasChildNodes()) {
                NodeList sublis = parent.getChildNodes();
                for(int subind = 0; subind < sublis.getLength(); subind++, count++) {
                    Text text = doc.createTextNode(sublis.item(subind).getNodeValue());
                    parentElement.appendChild(text);
        }Cheers
Simon