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From "Daniel Fagerstrom" <>
Subject RE: [status & RT] design challenges
Date Mon, 08 Apr 2002 21:48:49 GMT
Ivelin Ivanov wrote:
> > The main problem with Daniel's contribution is that the whole document
> > has to be buffered in a DOM before any decision can be taken : it's like
> > going back to the slow times of Cocoon 1. But we could imagine some
> > smarter implementations based on partial buffering using compiled XML
> > and things like STX ( to avoid
> > complete buffering.
> Daniel acknowledged this weakness and he's willing to fix this, provided
> there is enough interest in the
> xpath selector and he gets some direction.
I can't remember that I have volunteered to do that, I mentioned caching,
but partial buffering is another matter.

Actually, my current position is that for the uses cases I have discussed, I
believe that the efficiency gain in using partial buffering is rather small
while it seem quite complicated to implement (at least, I couldn't find any
simple designs). So for the moment I think I use my time better if I'm
concentrating on form handling in Cocoon. But if anyone provide me with use
cases where partial buffering would lead to a major performance gain or
design ideas that would make it a more realistic effort to implement and
integrate in Cocoon, I will happily change my mind. And I would of course
try to contribute in design discussions, if anyone would like to implement
pipe-aware selection with partial buffering.


/Daniel Fagerstrom

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