I'm trying to understand how Jess builds its rule base and when it creates
java objects. I have the following piece of code:
(defrule isInList
?response <-(Response (s1 ?x))
(not (test ((new SumObject "c:/dev/data/data.txt") InList ?x))
)
=> (printout t "It does exist")
)
SumObject is a java object that reads a list of 50 values from the file
data.txt. It calls the InList method to check if the slot value in s1 is in
the list. I know there is a member list function, but this is a linear
search and I am looking for better performance.
Q. When is the object created and the text file loaded? When the rule is
built or when it fires?
Q. Is there a way to instantiate SumObject outside the rule and reference it
in the test statement?
Thanks,
Brett.
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