[jboss-jira] [JBoss JIRA] (DROOLS-3282) Should not move to next AgendaGroup even if current is empty

[Edoardo Vacchi (Jira)]

     [ https://issues.jboss.org/browse/DROOLS-3282?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edoardo Vacchi closed DROOLS-3282.
----------------------------------
    Resolution: Rejected


not the right fix, add new primitive for suspension

> Should not move to next AgendaGroup even if current is empty
> ------------------------------------------------------------
>
>                 Key: DROOLS-3282
>                 URL: https://issues.jboss.org/browse/DROOLS-3282
>             Project: Drools
>          Issue Type: Bug
>            Reporter: Edoardo Vacchi
>            Assignee: Edoardo Vacchi
>            Priority: Major
>              Labels: drools-core
>
> Current implementation moves to next agend group if current agenda group is empty. This is unexpected, and in part detrimental in the impl of units: it is not possible to suspend execution of rules by switching to an empty group, because the engine will move to the next group anyway:
> {code}
> return nextRule != null && (!ruleAgendaItem.getAgendaGroup().equals( nextRule.getAgendaGroup() ) || !isHigherSalience(nextRule));
> {code}
> because the change in behavior is potentially backwards incompatible we add a flag {{keepWhenEmpty}} that must be set to {{true}} when we want to enable this new behavior



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