[rules-users] mythical functions

Chris Richmond wrote: Did this ever get answered? I have never been able to use a function. I always get mvel compile errors. Consider this: ---- package systeminsights.plugin.core.schedule dialect "mvel" function String f() { return "function"; } rule "Invoke function" when eval(true) then System.out.println("*** f=" f()) end ---- With strict mvel: [Error: Failed to compile: 1 compilation error(s): - (1,3) unable to resolve method using strict-mode: java.lang.Object.f()] [Near : {... Unknown ....}] ^ [Line: 1, Column: 0] at org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:78) With non-strict mvel: org.drools.runtime.rule.ConsequenceException: rule: Invoke function at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:23) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:975) at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:915) at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1121) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:698) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:664) at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:198) at systeminsights.infra.drools.DroolsGroovyTestFixture.fireAllRules(DroolsGroovyTestFixture.groovy:89) at systeminsights.infra.drools.DroolsGroovyTestFixture._clinit__closure19(DroolsGroovyTestFixture.groovy:226) at systeminsights.infra.drools.DroolsGroovyTestFixture.getProperty(DroolsGroovyTestFixture.groovy) at systeminsights.plugin.core.schedule.FunctionsTest.With device(_) -> device(_) is effective(FunctionsTest.groovy:19) Caused by: [Error: unable to access property (null parent): f] [Near : {... Unknown ....}] ^ [Line: 1, Column: 0] -- View this message in context: http://n3.nabble.com/functions-tp60463p95669.html Sent from the Drools - User mailing list archive at Nabble.com.