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   Re: [xml-dev] XML Pipeline (was: Stupid Question ...)

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[Jeff Lowery]
> > -----Original Message-----
> > From: Michael Brennan [mailto:Michael_Brennan@Allegis.com]
> > Although Ant is push-based whereas the pipeline proposal seems to be
> > pull-based.
> That's a good observation.
> I can see some flows where a mix of "me push" and "you pull" processes
> be hooked together: the main process pushing the primary inputs to
> subprocesses that are thereby triggered to pull secondary data to build
> their targets. I'm not sure how that would model in Ant or XML Pipeline;
> maybe as modular Pipeline scripts within a larger Ant framework? Must read
> more...

Anyone remember Morrison's "Flow Based Programming" (Van Nostrum Reinhold,
1994)?  Fascinating stuff, which apparently he used very successfully at
IBM.  Sort of a cross between recursively structured streams, pipes,
potential parallel processing, and pull processes.  It ought be be well
suited to markup processing.  I think there are still a few copies of the
book to be found (maybe used).


Tom P


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