Remove XML element with JAXB

Question

Hi all,
does anyone knows if it's possible to remove an xml element after that element has been set ? Using only jaxb if possible and not using other technology, for example DOM.
I explain:
umarshall car -->setOwner("me"); setSpeed("80"); -->marshall car
will result into:
<car>
<owner>me</owner>
<speed>80</speed>
</car>
I would like something that for example
unmarshall car -->remove(speed); ....-->marshall car
would result into:
<car>
<owner>me</owner>
</car>
could someone point out a way to do that ?
thanks in advance...

Answer 1

Okay, after peering over your code and trying a few things out I see one immediate problem and one possible improvement.
The problem lies in this:
1. if condition is true, remove item
2. check recursively
The problem is .. if an item is removed, the following recursive check will always fail. However, the entire loop is wrapped into a try..catch, so InDesign will not alert you that it failed. Instead, it will continue with what's after the loop, exactly because the try..catch is around the entire loop!
Change the loop code to this
if((elm.xmlElements[i].markupTag.name == "http") && (elm.xmlElements[i].parent.markupTag.name == "extlink"))
    var Store_CitAttri = elm.xmlElements[i].xmlAttributes.item("c_style").value;
    if(Store_CitAttri == "URL")
      elm.xmlElements[i].remove();
       foundtext = foundtext + 1;
       continue;
Query_Remove(elm.xmlElements[i]);
so the recursive checking is skipped. You can also remove the entire try..catch block, as this may hide additional errors ...
The improvement is: as I started reading this thread from the top again, shouldn't you be removing the "extlink" items, rather than just the "http" ones inside?
If so, remove the parent of the found item (which is always the "extlink"):
      elm.xmlElements[i].parent.remove();
-- and, as this will break the loop (because you just removed the set of elements it was working in!), replace 'continue' with 'return'.
Hope this helps