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From "Padraic Hannon (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-1050) Remove synchronization from JNDI data sources
Date Thu, 02 Aug 2007 16:20:53 GMT

    [ https://issues.apache.org/jira/browse/JCR-1050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12517311
] 

Padraic Hannon commented on JCR-1050:
-------------------------------------

Yeah I saw that in the code. However, from what I can tell the only place where the connection
autocommit is explicitly turned off and rollback() and commit() are called is in the method
store(ChangeLog). Assuming that one is running in a container and has access to a datasource
I would also assume that one has access to a UserTransaction object. If that is the case,
rather than using a connection's transaction handling one can delegate the transaction handling
to jta. 

> Remove synchronization from JNDI data sources
> ---------------------------------------------
>
>                 Key: JCR-1050
>                 URL: https://issues.apache.org/jira/browse/JCR-1050
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: 0.9, 1.0, 1.0.1, 1.1, 1.1.1, 1.2.1, 1.2.2, 1.2.3, 1.3, 1.3.1, 1.4,
2.0
>            Reporter: Padraic Hannon
>
> Using datasources one should be able to rely on the application server to manage PreparedStatement
caches therefore pre-creating and holding onto the connection for long periods of time should
not be needed. This relates to improvement JCR-313, however, that change did not address the
benefits one could see in using an application server controlled datasource. Even if jackrabbit
does aim to use an embedded database such a system could be configured to use datasources
and could benefit from the removal of the synchronization. 

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