Re: [rules-users] Unable to resolve token on function call with mvel dialect

Hi, I use drools 4.0.7 and I encounter a problem calling a function from a rule written for mvel dialect. The function I need to call has this signature : function VOCounter createCounter(org.drools.spi.KnowledgeHelper drools, String code, Number number) When I call this function, I want to assign result to a variable, for example to insert it to working memory later, or just to use it in another function call. So I wrote something like that (I am writing a DSL so part of the code is DSL ): rule "CALCUL_RELICAT_CP" salience 8 no-loop when not There is a counter called "RELICAT_CP" There is a date called "startDate" There is a date called "endDate" There is a counter called "SOLDE_CP_CUM" with - start date is last year then > VOCounter $relicat = createCounter(drools,"RELICAT_CP",$SOLDE_CP_CUM.value); > insert($relicat); Copy counter $SOLDE_CP_CUM to SOLDE_RELICAT_CP end But I have the following stack trace : org.drools.spi.ConsequenceException: org.mvel.UnresolveablePropertyException: unable to resolve token: createCounter(drools,"RELICAT_CP",$SOLDE_CP_CUM.value) at org.drools.base.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:13) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:558) at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:518) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:475) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:439) at fr.horoquartz.t4.test.drools.TestRuleBase.executeRuleWithDsl(TestRuleBase.java:120) at fr.horoquartz.t4.test.drools.Test1.testDsl(Test1.java:39) Caused by: org.mvel.UnresolveablePropertyException: unable to resolve token: createCounter(drools,"RELICAT_CP",$SOLDE_CP_CUM.value) at org.mvel.ast.PropertyASTNode.initializePropertyNode(PropertyASTNode.java:129) at org.mvel.ast.PropertyASTNode.getReducedValueAccelerated(PropertyASTNode.java:24) at org.mvel.ExecutableAccessor.getValue(ExecutableAccessor.java:45) at org.mvel.ast.TypedVarNode.getReducedValueAccelerated(TypedVarNode.java:43) at org.mvel.MVELRuntime.execute(MVELRuntime.java:90) at org.mvel.CompiledExpression.getValue(CompiledExpression.java:111) at org.mvel.MVEL.executeExpression(MVEL.java:235) at org.drools.base.mvel.MVELConsequence.evaluate(MVELConsequence.java:48) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:554) ... 34 more What is strange is that it works if I don't assign function call result to a variable. For example the following works : insert (createCounter(drools,"RELICAT_CP",$SOLDE_CP_CUM.value)); It also works if I assign $SOLDE_CP_CUM.value to a temporary variable and use it for function call : Number $val = $SOLDE_CP_CUM.value; VOCounter $relicat = createCounter(drools,"RELICAT_CP",$val); insert($relicat); I had not this problem using java dialect. I understand nothing in what happens ... Anyone has an idea what the problem is ? Thanks in advance, Olivier _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users