Re: [Exist-open] R: R: delete item performance issue

[Michael B. <mbe...@mb...>]

Silvio wrote:

> > My problem is I can't know what user do: he has a html form in wich edit
> > Any tag of dogument. When he submit the form my idea was to update
entire
> > Document.

This is actually a different problem area, although it does explain your
current need for whole-document deletions and replacements. It depends on
how complex the form is, what kind of changes the user can make to it, and
maybe also how many simultaneous users there may be. In one of my
applications, the client form has an Ajax event handler that tracks changes
to the html DOM and signals them asynchronously to the server, which can
shadow them in real time against its own copy of the XML DOM. So the server
already knows when the user-visible submit button is clicked which nodes
have been changed client-side and in what way, and can make a judgement
based on that knowledge whether to do XUpdates or a complete delete and
re-store. But I guess that is only feasible in quite specialised cases such
as this one (a handful of users making changes governed by strong
constraints to small but highly-structured documents on a server on the same
Gigabit LAN).

Michael Beddow