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From Christian Haul <h...@dvs1.informatik.tu-darmstadt.de>
Subject Re: dull problem : redirecting after transforming
Date Tue, 20 Aug 2002 15:17:07 GMT
On 20.Aug.2002 -- 04:11 PM, Barbara Post wrote:

Barbara,

in short: you cannot. If you had a redirect after the response is
already produced, it would be ignored. In addition, you may not have a
pipeline with a generator but without a serializer (correction:
call-ressource may be the last, but eventually, there needs to be a
serializer).

> I have a series of transformers (last one inserts in a database) then want

I would consider it bad design to modify data in a transformer if the
result depends on the outcome.

> to go to another pipeline (anyway I have to do a generation from new xml,
> not the DB successful insertion message) without having interaction with the
> user, how can I do that ?

Apart from needing a serializer for this particular pipeline anyways,
you might get away using aggregation.

	<map:aggregate>
	   <map:part src="pipeline-that-does-db-transform"/>
	   <map:part src="pipeline-that-does-real-work"/>
    <map:aggregate>

Difficult to pass a parameter from part one to part two,
though. Request or session attributes would do.

	Chris.
-- 
C h r i s t i a n       H a u l
haul@informatik.tu-darmstadt.de
    fingerprint: 99B0 1D9D 7919 644A 4837  7D73 FEF9 6856 335A 9E08

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