How to compare two variables from a java class in jess and execute a rule?
- by user3417084
I'm beginner in Jess. I'm trying to compare two variables from a Java class in Jess and trying to execute a rule.
I have imported cTNumber and measuredCurrent (both are integer)form a java class called CurrentSignal. Similarly imported vTNumberand measuredVoltage form a java class DERSignal. Now I want to make a rule such that if cTNumber is equal to vTNumber then multiply measuredCurrent and measuredVoltage (Both are double) for calculating power.
I'm trying in this way....
(import signals.*)
(deftemplate CurrentSignal (declare (from-class CurrentSignal)))
(deftemplate DERSignal (declare (from-class DERSignal)))
(defglobal ?*CTnumber* = 0)
(defglobal ?*VTnumber* = 0)
(defglobal ?*VTnumberDER* = 0)
(defglobal ?*measuredCurrent* = 0)
(defglobal ?*measuredVoltage* = 0)
(defglobal ?*measuredVoltageDER* = 0)
(defrule Get-CT-Number
(CurrentSignal (cTNumber ?m))
(CurrentSignal (measuredCurrent ?c))
=>
(bind ?*measuredCurrent* ?c)
(printout t "Measured Current : " ?*measuredCurrent*" Amps"crlf)
(bind ?*CTnumber* ?m)
(printout t ?*CTnumber* crlf)
)
(defrule Get-DER-Number
(DERSignal (vTNumber ?o))
(DERSignal (measuredVoltage ?V))
=>
(bind ?*measuredVoltageDER* ?V)
(printout t "Measured Voltage : " ?*measuredVoltageDER* " V" crlf)
(bind ?*VTnumberDER* ?o)
(printout t ?*VTnumberDER* crlf)
)
(defrule Power-Calculation-DER-signal
"Power calculation of DER Bay"
(test (= ?*CTnumber* ?*VTnumberDER* ))
=>
(printout t "Total Generation : " (* ?*measuredCurrent* ?*measuredVoltageDER*) crlf)
)
But the Total Generation is showing 0. But I tried calculating in Java and it's showing a number. Can anyone please help me to solve this problem. Thank you.
