[jboss-jira] [JBoss JIRA] (JBRULES-3363) Add support to inline constraints on multi-function accumulate

Add support to inline constraints on multi-function accumulate -------------------------------------------------------------- Key: JBRULES-3363 URL: https://issues.jboss.org/browse/JBRULES-3363 Project: Drools Issue Type: Feature Request Security Level: Public(Everyone can see) Components: drools-compiler, drools-core Affects Versions: 5.4.0.Beta1 Reporter: Edson Tirelli Assignee: Edson Tirelli Fix For: 5.4.0.Beta2 FROM MARK: =========== Edson, While I don't want to change to acc/for keyword quite yet, until we are sure what drastic changes we want to make to syntax. I think we can evolve accumulate() 1) make the first ", " optionall [,;]. Where the documented new separate is ";" 2) functions are still "," separated 3) allow an optional second ";" after this boolean expression, an eval without the eval wrapper. 3. can be done now with a separate eval(....) after the accumulate. But I think good to encapsulate the intent of the guard within the accumulate itself, it's also another opportunity to remove the "eval" keyword for a common use case. For now we'll just rewrite the accumulate to place an eval() CE after the acc. It's a small win, which I think will make the DRL look nicer, especially for CEP use cases. ============ FROM EDSON: ============ Mark, (1) and (2) are ok. Regarding (3), we can embed the expression in the accumulate node itself. No need for a separate node. And if we use ; as the separator, we don't need the eval() keyword.