[cdi-dev] Cluster lifecycle events

Hi CDI 1.1 defines a set of lifecycle events related to different context within the application, but we see a need to define cluster lifecycle events for applications. These events could, for example, be used for subscribing/allocating and unsubscribing/deallocating external services/resources. More specifically, a @Cluster event that gets fired when an application gets @Initialized in the cluster, that is, post @Application @Initialized. And another @Cluster event that gets fired when the application get @Destroyed in the cluster, that is, pre @Application @Destroyed. These events only fires once per application and cluster, independent on how many cluster instances exists. Events are fault tolerant meaning that events are not affected by failing instances going out-of-service, as long as the cluster is still working. Notice that the @Destroyed event is of course only invoked if the cluster terminates gracefully. Is this something you have considered earlier or is it worth discussing/specifying further? Cheers, -Kristoffer