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From "Marcel Reutegger (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-313) Allow to configure DB persistence managers through JDNI
Date Fri, 03 Feb 2006 10:24:04 GMT
    [ http://issues.apache.org/jira/browse/JCR-313?page=comments#action_12365062 ] 

Marcel Reutegger commented on JCR-313:
--------------------------------------

Martin wrote:
> Well, first of all, sorry if I offended someon putting the issue, because it seems that
I got hard responses.

You don't have to be sorry. I'm not against building a DB PM that uses a connection pool.
I just had (and still have) doubts how this contributes to increased concurrency, because
concurrency is mostly controlled outside of the PM.

It wasn't my intention to criticise anyone on a personal level.

> Allow to configure DB persistence managers through JDNI
> -------------------------------------------------------
>
>          Key: JCR-313
>          URL: http://issues.apache.org/jira/browse/JCR-313
>      Project: Jackrabbit
>         Type: Improvement
>     Versions: 0.9
>     Reporter: Martin Perez

>
> Currently, DB persistence managers have hardcoded urls. Even more, they will use a single
connection with the drawbacks that this have regarding concurrency, performance and transactionality.

> It would be fairly better to allow to configure DB persistence managers through JDNI
references to DataSource. So giving responsability to application server. Concurrency, performance
and transactionability will be highly boosted with this approach. 
> This could be a sample configuration :
> <PersistenceManager class="org.apache.jackrabbit.core.state.db.SimpleDbPersistenceManager">
>        <param name="dataSource" value="jdbc/JackrabbitDS"/>
>         
>        .... think also about a way to pass params to data source, it should be simple
....
>        <param name="schema" value="mysql"/>
>        <param name="schemaObjectPrefix" value="${
> wsp.name}_"/>
>        <param name="externalBLOBs" value="false"/>
>    </PersistenceManager>

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