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https://issues.apache.org/jira/browse/ARTEMIS-1606?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Andre Pearce closed ARTEMIS-1606.
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> Change AddressInfo RoutingType Set to use EnumSet
> --------------------------------------------------
>
> Key: ARTEMIS-1606
> URL: https://issues.apache.org/jira/browse/ARTEMIS-1606
> Project: ActiveMQ Artemis
> Issue Type: Improvement
> Reporter: Michael Andre Pearce
> Assignee: Michael Andre Pearce
> Priority: Major
> Fix For: 2.5.0
>
>
> RoutingType is a enum, as such can take advantage of the benefits of EnumSet.
> Its a specialist set designed for Enum's.
> https://docs.oracle.com/javase/7/docs/api/java/util/EnumSet.html
> https://www.techempower.com/blog/2017/02/14/enumset-and-enummap/
> This will reduce memory footprint due to being many times more compact, this
> is particularly important as this Address Info and Routing Type sets are in
> the hot path of message flow. And that there is only two routing types
> currently so a very small enum.
> Also at the same time to remove the iterator from the getRoutingType which is
> in the hotpath. Like wise we can avoid it if AddressInfo is constructed with
> a single RoutingType.
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