Re: [rules-users] Evaluate rules for multiple facts of the same type within a StateuflSession
On 13/02/2013, pdario <dario.piantanida(a)gmail.com> wrote:
I'm trying to understand this "Param" pattern, but I
miss the Java calling
for it: will I need to put the effective values in the Java code instead of
the rule file?
Can you elaborate a little about this?
Take the Example 3 of your whitepaper: where are literals 0, 10 and "red"
from the Example 2?
They are in one of several (many) Param facts.
Best practice would be to have an XML file defining all the Param
value sets, unmarshall it and insert after session creation.
Which means you have them neither in the Java code nor as "magic
numbers" in the rules. It makes you application and even your rules
independent from day-to-day change requests (which, we all know,
Marketing to enjoys ;-) )
-W
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