Mike,
I couldn't reproduce your problem with a simple junit test:
public void testAddCloneToOtherElement() {
DocumentFactory factory = DocumentFactory.getInstance();
Document doc = factory.createDocument();
Element root = doc.addElement("root");
Element parent1 = root.addElement("parent");
Element child1 = parent1.addElement("child");
Element parent2 = (Element) parent1.clone();
root.add(parent2);
assertSame("parent not correct", root, parent2.getParent());
assertSame("document not correct", doc, parent2.getDocument());
Element child2 = parent2.element("child");
assertNotSame("child not cloned", child1, child2);
assertSame("parent not correct", parent2, child2.getParent());
assertSame("document not correct", doc, child2.getDocument());
}
Could you tell me what you are doing different and if possible, could you change the junit test so that it fails?
thanks, Maarten
Mike Summers wrote:
I have a dom4j program that adds cloned nodes into a Document.
I'm noticing that when it comes time to process the cloned node (this can include cloning the clone) (I use a recursive treewalk) that the clone is always missing a Document, and frequently a Parent. This only happens when I process a clone.
*Roughly*, the scheme is:
private void processNode(Node node){ clone = node.clone(); //createCopy has the same effect try{ findYourParentXPath.selectSingleNode(node).add(clone); }catch(NullPointerException npe){ node.getParent().add(clone); } treewalk(clone); }
with treewalk eventually calling back into processNode.
Dumping the Document I get the mis-processed clones, although in the wrong location (the search for their parent fails due to the null Document).
Is this out-of-scope for dom4j or am I missing some step? It's almost like the tree needs to be re-read before processing the clone (not an option in this case).
If someone has an example of cloning a clone and inserting it into the Document I'd appreciate a look.
Thanks-- Mike
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