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From "Benedict (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8568) Impose new API on data tracker modifications that makes correct usage obvious and imposes safety
Date Thu, 21 May 2015 12:32:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14554205#comment-14554205
] 

Benedict commented on CASSANDRA-8568:
-------------------------------------

I've uploaded a minor update that suppresses it. Personally I had a slight preference to leave
the production code unchanged here, since the warning message would be filtered out during
an ant test run, but I'm pretty on the fence and it is minor, so you have the options there
to choose from :)

I'll then rebase again against trunk and run cassci on them all before merging to 2.2/trunk.

Thanks for reviewing!

> Impose new API on data tracker modifications that makes correct usage obvious and imposes
safety
> ------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-8568
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8568
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Benedict
>            Assignee: Benedict
>             Fix For: 2.2.0 rc1
>
>
> DataTracker has become a bit of a quagmire, and not at all obvious to interface with,
with many subtly different modifiers. I suspect it is still subtly broken, especially around
error recovery.
> I propose piggy-backing on CASSANDRA-7705 to offer RAII (and GC-enforced, for those situations
where a try/finally block isn't possible) objects that have transactional behaviour, and with
few simple declarative methods that can be composed simply to provide all of the functionality
we currently need.
> See CASSANDRA-8399 for context



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