Brad Cox writes:

> I've an XHTML processing application that supports persistent forms.
> It needs to rewrite some elements (<input type="radio"> and <option>
> elements, for example) as text elements (velocity macro calls that
> add checked="checked" attributes).
>
> For example
>  <input type="radio" ... > must be rewritten as #radioElement(...)
>  <option>Value</option>  must be rewritten as #optionElement(...)
> with suitable attributes and arguments of course.
>
> First try (iteration over the List returned by XPath) didn't work
> because you can only delete elements, not replace them.

The list return from XPath isn't "live" so changes to it are not reflected
back in the tree.

> Second try was index through list and use set(index, new Text(...))
> to replace elements. That approach didn't work either. Debugger
> showed that the list was modified propertly, but the changes didn't
> affect the underlying DOM, just the list.
>
> Can someone explain why #2 didn't work and what I can do to fix it? Thanks!

Same reason. Try this, index throught the list and

  Element element = (Element) xpath_result.get(i); // Assumes xpath returned
                                  // only Elements
  Parent parent = element.getParent();         // get the element's parent
  int index = parent.indexOf(element);         // and element's index
  parent.setContent(index, "#radioElement ...");  // replace it

Brad

Go Pokes!!!
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