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From Christian Müller (JIRA) <j...@apache.org>
Subject [jira] Commented: (FELIX-2280) To much code duplication in DefaultJDBCLock, OracleJDBCLock and MySQLJDBCLock
Date Thu, 29 Apr 2010 17:13:55 GMT

    [ https://issues.apache.org/jira/browse/FELIX-2280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12862263#action_12862263

Christian Müller commented on FELIX-2280:

The next thing which I would like to document (if I'm not wrong) is, that we have to use different
databases or tables, if we running in a clustered environment (more than one active instances
where each running instance has also a standby / slave instance). My first assumption, only
to use different cluster names, fails because Derby (may be others also) lock the entire table.

> To much code duplication in DefaultJDBCLock, OracleJDBCLock and MySQLJDBCLock
> -----------------------------------------------------------------------------
>                 Key: FELIX-2280
>                 URL: https://issues.apache.org/jira/browse/FELIX-2280
>             Project: Felix
>          Issue Type: Improvement
>          Components: Karaf
>    Affects Versions: karaf-1.4.0
>         Environment: All
>            Reporter: Christian Müller
>         Attachments: FELIX-2280.patch
> org.apache.felix.karaf.main.DefaultJDBCLock, org.apache.felix.karaf.main.MySQLJDBCLock
and org.apache.felix.karaf.main.OracleJDBCLock has to much code duplications. I propose a
solution like in ActiveMQ [package org.apache.activemq.store.jdbc.adapter|http://svn.apache.org/viewvc/activemq/trunk/activemq-core/src/main/java/org/apache/activemq/store/jdbc/adapter/].
> And we should implement some unit tests for it.
> If it's fine for you, I will try to improve this part of karaf and provide a patch for

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