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From "Kevin Sutter (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OPENJPA-2312) H2 is forced to autoCommit; breaks transactions
Date Tue, 18 Dec 2012 19:44:13 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-2312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13535210#comment-13535210
] 

Kevin Sutter commented on OPENJPA-2312:
---------------------------------------

MySQL happens to be one of the databases that the default value is changed to "false" for
supportsMultipleNontransactionalResultSets.  If you want to run with this for H2, you could
easily update your persistence.xml with the following property to change this setting:

<property name="openjpa.jdbc.DBDictionary" value="h2(SupportsMultipleNontransactionalResultSets=false)"/>

Although it looks like this will get you around your immediate problem, I think you should
still look at whether you are trying to use the managed connection factory mode or not.  If
you are not, then maybe you do want to run with this property set to "false".  Good luck.
                
> H2 is forced to autoCommit; breaks transactions
> -----------------------------------------------
>
>                 Key: OPENJPA-2312
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-2312
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 2.0.0
>            Reporter: Gustavo Lopes
>         Attachments: details.txt
>
>
> DataSourceFactory::installDBDictionary() sets autocommit to TRUE on the ConfiguringConnectionDecorator
because supportsMultipleNontransactionalResultSets is true.

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