Dear all,
this may seem a trivial problem, but I hope you can help out.
As far as I understood, the general way to describe production rules
is like this:
a and b and c ... => execute x
From what I have understood about RETE there is no efficiency problem
in defining a second rule, if the negation of some fact is used:
a and b and not c ... => execute x
because this will be just a second branch to the rule above. However,
if c contains e.g. a method call to java, the method is called twice,
right?
At the moment I solve this by producing a fact containing the result
of the method and then have two rules working on this fact expressing
both branches. But this seems rather inelegant and inefficient. Can
anybody enlighten me?
Cheers,
Michael
--
Multi-Agent Systems Group at Saarland University
http://www.virtosphere.de/schillo Fon: +49 681 302 4578
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