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From "Thomas Mueller (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-1388) Jackrabbit does not allow concurrent reads to the data store if copyWhenReading=false
Date Fri, 29 Feb 2008 17:04:53 GMT

    [ https://issues.apache.org/jira/browse/JCR-1388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12573844#action_12573844

Thomas Mueller commented on JCR-1388:


Your new patch is better, but there are still a few issues:

You still have tabs in the source code.

DbResources and DatabaseHelper still don't have correct license headers.

There is still a catch (Exception e) {}.

There are still some cases where "} else {" and so on is not on the same line. Please format
the source code. In Eclipse, use [Source] [Format]. I suggest you review the Sun coding guidelines
at http://java.sun.com/docs/codeconv/

Javadoc comments are still not correct. getLastModified doesn't have a Javadoc comment. @return
tag is still not used.

Variables are still declared at the start of the method in getDatabaseResources(). Please
declare them when / just before using them 

DbInputStream.mark and reset are synchronized, but nothing else in this class, why?

The SQL statement remark "// SELECT ID, DATA FROM DATASTORE WHERE ID = ?" was
there to simplify reading the code (so you don't have to switch to another file to understand
Please add it where selectDataSQL is used.

About the method finalize(): I wouldn't use it. It slows down creating objects. If the wrapped
InputStream and resource need finalize(), it is already implemented there.

About the test cases:

-  ".classpath" doesn't exist in all systems (RandomInputStream is better).

- Don't use System.out.println, use a logger.

- Add the test to the TestAll method.

- You have again used return(..) instead of return ..

- The Javadoc comment is empty


> Jackrabbit does not allow concurrent reads to the data store if copyWhenReading=false
> -------------------------------------------------------------------------------------
>                 Key: JCR-1388
>                 URL: https://issues.apache.org/jira/browse/JCR-1388
>             Project: Jackrabbit
>          Issue Type: Improvement
>          Components: jackrabbit-core
>    Affects Versions: 1.4
>         Environment: WinXP x64, Eclipse, remote SQL Server 2005
>            Reporter: Esteban Franqueiro
>         Attachments: JCR-1388-datastore-concurrent-reads.2.patch, JCR-1388-datastore-concurrent-reads.patch,
> Jackrabbit does not allow concurrent reads to the data store if copyWhenReading=false,
even if maxConnections>1.
> See JCR-1184 for a test for this problem (run it with copyWhenReading=false).

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