Hi, Unless there is another workaround, I think you would have to do it something like this: [*][when]the received object=result : RulesResult();$stm : Report() [*][keyword]NEW=State.NEW [*][keyword]OLD=State.OLD [*][when]- state is {stateList}=state in ({stateList}) Regards, Frank -- View this message in context: http://drools.46999.n3.nabble.com/use-of-enum-with-in-on-LHS-tp3997081p39... Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Hi there, I have a rule where I would like human-readable rule to have a comma separated list of enum constants in it, however I can't find a way to get this working. DSLR file: import com.test.Report; import com.test.RulesResult; import com.test.State; rule "Test rule" when the received object - state is NEW, MODIFY then #unimportant end DSL file: [*][when]the received object=result : RulesResult();$stm : Report() [*][when]- state is {stateList}=state in (State.{stateList}) Class Report has a property called state which is an enum of type State which has a number of constants including NEW and MODIFY. When I run this I get: org.drools.RuntimeDroolsException: Exception executing predicate ( state == State.NEW || state == MODIFY) As you can see only the first constant is being qualified with the enum class. Can anyone help me with how to do this properly? Thanks, Derek -- View this message in context: http://drools.46999.n3.nabble.com/use-of-enum-with-in-on-LHS-tp3997081.html Sent from the Drools: User forum mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users