DRool syntax

[dsun]

rule "Missing Executing Broker "
salience 10
when
m : Message ()
xpathEmpty "/olcmf/olcmfMessage/messageData/dataRecord/tradeRecord/tradeParties/executingBroker"
then
m.getBody().add("DiscountObject","10%");
Log : "~~~~1 Missing Executing Broker";

end

WHat's wrong with the above rule syntax? It can't get parsed.

[jaroslaw.kijanowski]

Do you have:
expander XPathLanguage.dsl
after your import statements?

Moreover xpathEmpty is not defined yet, please see the Content Based Routing Guide for more informations, define "xpathEmpty" and share with us :)

[dsun]

rule "Missing Executing Broker "
salience 10
when
xpathEmpty "/olcmf/olcmfMessage/messageData/dataRecord/tradeRecord/tradeParties/executingBroker"
then
Log : "~~~~1 Missing Executing Broker";

end

The above rule works perfect. I defined xpathEmpty in my own class.

But after I added m : Message() in when section, I get rule parse problem.

rule "Missing Executing Broker "
salience 10
when
m : Message()
xpathEmpty "/olcmf/olcmfMessage/messageData/dataRecord/tradeRecord/tradeParties/executingBroker"
then
Log : "~~~~1 Missing Executing Broker";

end

[jeffdelong]

While it would help to see the error, most likely it is a result of mixing DRL syntax with DSL syntax. I.e.,

m : Message()

is DRL syntax.

If you want to add a constraint that the message exists (not sure why you would want to do this since the CBR will always insert a message), you would need to add this to the XPathLanguageDSL.

[when]There is a message=m : Message()