[kepler-users] Creating a feedback loop

[Kenneth Evans]

Frank,

I am also having the same problem.  I have attached a simple iterative loop
of the type you mention as a workflow and as a workflow with a Composite
actor.  The former more or less works.  (There are comments in the
Annotation.)  The latter does not work, and I am not sure how to fix it.

It is very simple.  It starts with a specified value and decrements it until
it reaches another specified value, then quits.
 
Perhaps it would be easier for someone to point out how to fix both to make
them work right.  I did not see any examples of this type of iteration in
the demos.

Thanks,

        -Ken

-----Original Message-----
From: kepler-users-bounces at ecoinformatics.org
[mailto:kepler-users-bounces at ecoinformatics.org] On Behalf Of Frank
Steinmann
Sent: Monday, November 12, 2007 2:50 AM
To: kepler-users at ecoinformatics.org
Subject: [kepler-users] Creating a feedback loop

Hi,

I am having some problems designing a composite actor containing a 
feedback loop. What I would like to have is an actor that reads one 
input token which is used as initial value for the feedback loop, then 
runs several iterations of the loop (the number of iterations is not 
known at implementation time), and finally sends one token (the final 
result of the loop) to the output port.
Any suggestions how to design such an actor?

Regards,
Frank

-- 
Dipl.-Inf. Frank Steinmann
Knowledge Management Department
DFKI GmbH

Tel.:    +49 (0)631 20575 - 114
Sekr.:   +49 (0)631 20575 - 101
Fax:     +49 (0)631 20575 - 103
E-Mail: Frank.Steinmann at dfki.de
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Trippstadter Straße 122, D-67663 Kaiserslautern, Germany

Geschäftsführung:
Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster (Vorsitzender)
Dr. Walter Olthoff

Vorsitzender des Aufsichtsrats:
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