Hello,
I have been having the following issue with regards to Jess and the
assertion of facts. I have the following rule:
(defrule getConfigValue "loads a single configuration value as a fact"
(declare (auto-focus true))
(need-config(pid ?pid)(system ?system)(subSystem
?subSystem)(name ?name)(value ?value))
=>
(bind ?configLocator (fetch configurationLocator))
(try
(bind ?result (call ?configLocator getConfigurationValue ?system
?subSystem ?name))
catch
(if(eq ?name upgradeRejectedTaskCardClosingRequirement)
then
(bind ?result "0")
else
(bind ?exception (call ?ERROR getCause))
(printout t "error while looking up config value
" ?system ", " ?subSystem ", " ?name crlf )
(printout t "message: " (?exception
getMessage)crlf)
(printout t "cause: "(?exception
getCause)crlf)
(bind ?result BadConfig)
)
)
(assert(config(pid ?pid)(system ?system)(subSystem ?subSystem)(name
?name)(value ?result)))
)
What happens here is the following. I am not getting the desired
result(the config fact is not getting asserted). When the turn the
watchon facture on I get the following result:
O <== Focus DOMAIN-FACTS
O ==> Focus CONFIG
O FIRE 4 CONFIG::getConfigValue f-350,
O <== Focus CONFIG
O ==> Focus DOMAIN-FACTS
Here the CONFIG and DOMAIN-FACTS are modules signified by the (defmodule
CONFIG) statement.
What I do not get is why would the config fact get asserted. Meaning
what would go wrong in order for this to happen?
Thank you for your help
Hasan Khan
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