There is quite a list of identifiers that cause surprising syntax errors, all resulting from MVEL keywords: var, with, def, assert, strsim, isdef,... Several more, I'm sure.
-W On 11/10/2013, richie <[email protected]> wrote: > Why var can not be used in the when clause? I tried to use it in then > clause > such as modify ($d) {var = "d"}; it just worked well. > > Is var a keyword in drools or mvel? I didn't find it anywhere both in > drools > export doc and mvel guide. > > Following is the content of my drl file: > > package test > > declare Dd > @propertyReactive > var : String > age : Integer > end > > rule "Rule A" > dialect "mvel" > salience 0 > no-loop > when > $d:Dd(var == "a") > then > modify ($d) {age = 3}; > end > > In the eclipse editor, it just shows an error marker before line $d:Dd(var > == "a"): > BuildError: Unable to Analyse Expression var == "a": > [Error: unexpected end of statement] > [Near : {... var == "a" ....}] > ^ > [Line: 14, Column: 0] > > And when invoke the rule, it just threw following exception: > java.lang.RuntimeException: Error while creating KieBase[Message [id=1, > level=ERROR, path=rules/Sample.drl, line=14, column=0 > text=Unable to Analyse Expression var == "a": > [Error: unexpected end of statement] > [Near : {... var == "a" ....}] > ^ > [Line: 14, Column: 0]]] > at > org.drools.compiler.kie.builder.impl.KieContainerImpl.getKieBase(KieContainerImpl.java:176) > at > org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:315) > at > org.drools.compiler.kie.builder.impl.KieContainerImpl.newKieSession(KieContainerImpl.java:290) > at com.sample.DroolsTest.main(DroolsTest.java:18) > > > I really appreciate any help you can provide. > > > > -- > View this message in context: > http://drools.46999.n3.nabble.com/BuildError-Unable-to-Analyse-Expression-var-a-tp4026331.html > Sent from the Drools: User forum mailing list archive at Nabble.com. > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list [email protected] https://lists.jboss.org/mailman/listinfo/rules-users
