[cdi-dev] [JBoss JIRA] (CDI-729) Async event not CompletionStage friendly

[Romain Manni-Bucau (JIRA)]

    [ https://issues.jboss.org/browse/CDI-729?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13592664#comment-13592664 ] 

Romain Manni-Bucau commented on CDI-729:
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You do the same for all, note that the proposal still returns the compltionstage with the event and not with the transformed payload, it is all about chaining, not transforming which is not possible with a loosely coupled chain.

Issue I hit today in a modern app is that I can't use that mecanism natively because i return way before actual completion :(.

> Async event not CompletionStage friendly
> ----------------------------------------
>
>                 Key: CDI-729
>                 URL: https://issues.jboss.org/browse/CDI-729
>             Project: CDI Specification Issues
>          Issue Type: Feature Request
>            Reporter: Romain Manni-Bucau
>
> The goal of this ticket is to enable user to get injected the completion future instead of the raw event and return another completion stage (generic type ignored) to enable the "chain" to be synched.
> Here is a sample:
> 1. fireAsync(persistEvent)
> 2. observer implementation does: return future.thenCompose(db::doAsyncPersist)
> 3. when the user gets back the result of the fireAsync the doAsyncPersist is completed.



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