mad_programmer mad_programmer - 7 months ago 27
Java Question

How to remove a child from from a node using jdom in java?

I have a xml structure as follows:

<rurl modify="0" children="yes" index="8" name="R-URL">
<status>enabled</status>
<rurl-link priority="3">http</rurl-link>
<rurl-link priority="5">http://localhost:80</rurl-link>
<rurl-link priority="4">abc</rurl-link>
<rurl-link priority="3">b</rurl-link>
<rurl-link priority="2">a</rurl-link>
<rurl-link priority="1">newlinkkkkkkk</rurl-link>
</rurl>


Now, I want to remove a child node, where text is equal to http. currently I am using this code:

while(subchilditr.hasNext()){
Element subchild = (Element)subchilditr.next();
if (subchild.getText().equalsIgnoreCase(text)) {
message = subchild.getText();
update = "Success";
subchild.removeAttribute("priority");
subchild.removeContent();
}


But it is not completely removing the sub element from xml file. It leaves me with

<rurl-link/>


Any suggestions?

Answer

You'll need to do this:

List<Element> elements = new ArrayList<Element>();

while (subchilditr.hasNext()) {
    Element subchild = (Element) subchilditr.next();
    if (subchild.getText().equalsIgnoreCase(text)) {
        elements.add(subchild);
    }
}

for (Element element : elements) {
    element.getParent().removeContent(element);
}

If you try to remove an element inside of the loop you'll get a ConcurrentModificationException.