[jdom-interest] Having a ListIterator as child cursor ??

[Paul Libbrecht]

Hi JDOMmers,

As mentionned in my earlier mails about events (or recipes), a delicate 
problem with Jdom is to be given an element object and wanting to remove 
that element, to replace it, to remove its neighbour or anything such...

I suggested to have an int getPositionInParent()... maybe this is a bit 
crazy...
An alternative would be to have method like ListIterator 
getCursorInParentContent() for all the "nodes" object (e.g. those that can 
be added as content) that would return a listIterator positionned at that 
element.

It would still require the children to know their positions and the update 
of such would still require some shifts each time a child-node is added 
(at least as long ArrayList is used, using something like GapVector would 
lower the updates by a good amount, LinkedList would have no problem), but 
it would be way more expressive and directly useful:

to remove: node.getCursorInParentContent().remove()
to replace: node.getCursorInParentContent().set(newNode)
	// with a subclassing to call setParent
and so on...

Is this non-reasonnable ??
Thanks.

Paul