Hello all,
Is it possible to define the follow rule in a decision table :
rule "Activate Promotion"
when
l : Line( )
not ( Promotion ( code == "HOTBUY" ) from l.promos )
then
#do some action
end
The rule above works perfectly for what I need when defined in a rule file.
However, when I try to define it in a decision table so that the 'code' can
be feed from a spreadsheet, I use the following values in the rules cells :
RuleTable
HOTBUYS
CONDITION
ACTION
l : Line
not ( Promotion ( code == "$param" ) from l.promos )
System.out.println("$param added");
PROMOTION
PROMOTION
HOTBUY
BESTBUY
I'm getting the following parser errors
[10,17]: [ERR 101] Line 10:17 no viable alternative at input 'Promotion' in
rule "_11" in pattern Line
[10,29]: [ERR 101] Line 10:29 no viable alternative at input 'code' in rule
"_11"
[10,63]: [ERR 102] Line 10:63 mismatched input ')' expecting 'then' in rule
"_11"
java.lang.IllegalArgumentException: Could not parse knowledge.
at
com.sample.DecisionTableTest.readKnowledgeBase(DecisionTableTest.java:85)
at com.sample.DecisionTableTest.main(DecisionTableTest.java:28)
Also in Eclipse IDE, I get the following error :
"Unknown error while parsing. This is a bug. Please contact the Development
team." NewPromotions.xls
Is it possible to use 'from' conditional element in decision tables ? If so,
what am I doing wrong. If not, then what's the best approach to implement
the rule above in a decision table.
I'm running Drools 5.1.0M1 in Eclipse.
Help truly appreciated.
Gurvinder
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