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From "Felix Meschberger (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FELIX-3692) [DS] api for finding out if async work is done
Date Tue, 09 Oct 2012 09:34:02 GMT

    [ https://issues.apache.org/jira/browse/FELIX-3692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13472241#comment-13472241

Felix Meschberger commented on FELIX-3692:

Thanks for providing the patch.

As discussed on the dev list [1] I am against such API.

In addition to what I said on the dev list, I also think such API is prone to concurrency
issues. If at all, I'd rather change the Component.enable and .disable methods to operate
synchronous instead of asynchronous. (or better yet, have the DS Admin API to be specified
by the OSGi Alliance define these methods to be synchronous in the Admin API).

[1] http://markmail.org/message/fdben4ggpr4fyikc
> [DS] api for finding out if async work is done
> ----------------------------------------------
>                 Key: FELIX-3692
>                 URL: https://issues.apache.org/jira/browse/FELIX-3692
>             Project: Felix
>          Issue Type: Improvement
>          Components: Declarative Services (SCR)
>    Affects Versions: scr-1.8.0
>            Reporter: David Jencks
>            Assignee: David Jencks
>             Fix For: scr-1.8.0
>         Attachments: FELIX-3692-1.diff
> It might be useful to provide a couple methods on ScrService so you can find out if all
the async work is done.
> I'm thinking
> boolean tasksCompleted()
> void waitForTasksCompleted()
> This might be especially useful if we decide to adopt my "try again later" proposal for
resolving more circular dependencies (FELIX-3557) since that can result in extra possibly
unexpected async tasks.

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