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From "Thomas Mueller (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-940) add db connection autoConnect for BundleDbPersistenceManager.
Date Fri, 21 Sep 2007 08:51:51 GMT

    [ https://issues.apache.org/jira/browse/JCR-940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12529346

Thomas Mueller commented on JCR-940:

Sorry, I have attached my comments to the wrong bug (JCR-1138).


The patch looks good. I tried with PostgreSQL and got this problem:

ConnectionRecoveryManager: could not setup connection, reason: could not load driver: org.postgresql.Driver,
state/code: null/0
(ConnectionRecoveryManager.java, line 430)
ConnectionRecoveryManager: blocking until database connection is up again...
(ConnectionRecoveryManager.java, line 368)

Do you agree that retry doesn't make sense if the driver could not be loaded? If yes I will
change the code. Also, it would probably make sense to write the database URL and the user
name (not the password) to the log file, so the person (alias poor guy) who has to start the
database knows which one and can test the connection using some other tool.

If that's OK with you, I will make it throw a RepositoryException if the database driver could
not be loaded or initialized (ExceptionInInitializerError):

    private void setupConnection() throws SQLException, RepositoryException {
        try {
            Class driverClass = Class.forName(driver);
            // Workaround for Apache Derby:
            // The JDBC specification recommends the Class.ForName method without the .newInstance()
method call,
            // but adding the newInstance() guarantees that Derby will be booted on any Java
Virtual Machine.
        } catch (Throwable e) {
            throw new RepositoryException("Could not load or initialize the database driver
class " + driver, e);

> add db connection autoConnect for BundleDbPersistenceManager.
> -------------------------------------------------------------
>                 Key: JCR-940
>                 URL: https://issues.apache.org/jira/browse/JCR-940
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: jackrabbit-core
>    Affects Versions: 1.3
>            Reporter: Xiaohua Lu
>         Attachments: JCR-940-2nd.patch, JCR-940-v2.patch, JCR-940-v3.patch, JCR-940.patch
> Since bundled db pm doesn't inherited from database pm, it can't reconnect once database
is bounced. it would be nice to add this feature. 

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