[jira] Commented: (OPENJPA-268) Provide pluggable "out of transaction" work requests

["Craig Russell (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OPENJPA-268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12508607 ] 

Craig Russell commented on OPENJPA-268:
---------------------------------------

> ...add a new interface for executing a Runnable in a different transaction. This would allow us to use the TSR ManagedRuntime for general use, and just plug in different ways of performing out-of-transaction work." 

I think this is a good direction to go, although I'm not sure that you need a different transaction. You might be able to use the non-transactional connection to perform "out of transaction" requests like sequence management, but you shouldn't need a "different transaction" just a "non-transaction". 

Are there cases where we need "transactional" semantics but "not the transaction currently bound" to the Broker?

> Provide pluggable "out of transaction" work requests
> ----------------------------------------------------
>
>                 Key: OPENJPA-268
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-268
>             Project: OpenJPA
>          Issue Type: Sub-task
>          Components: kernel
>    Affects Versions: 1.0.0
>            Reporter: Kevin Sutter
>
> From the parent Issue (OPENJPA-61)...
> "I don't think that we want this to necessarily be the default ManagedRuntime implementation, since the TSR does not provide any support for executing work in a separate transaction. This behavior is required for sequence maintenance in some scenarios.
> Maybe we should change our ManagedRuntime interface to get rid of the begin() / commit() etc. APIs, and add a new interface for executing a Runnable in a different transaction. This would allow us to use the TSR ManagedRuntime for general use, and just plug in different ways of performing out-of-transaction work." 
> Since the original OPENJPA-61 Issue resolved the first problem with a missing TSR implementation, I created this new sub-task for the "out of transaction" work requests.

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