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From "Dennis Dam (JIRA)" <jetspeed-...@portals.apache.org>
Subject [jira] Commented: (JS2-809) Add table schema aware datasource proxy
Date Mon, 03 Dec 2007 11:41:44 GMT

    [ https://issues.apache.org/jira/browse/JS2-809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12547800
] 

Dennis Dam commented on JS2-809:
--------------------------------

Joachim, I should have looked more careful as well: BasicDataSource  and TransactionAwareDataSourceProxy
 are completely different things ofcourse, one is put in front of the other.

The new patch looks fine by me, and it doesn't break anything afaics.

> Add table schema aware datasource proxy
> ---------------------------------------
>
>                 Key: JS2-809
>                 URL: https://issues.apache.org/jira/browse/JS2-809
>             Project: Jetspeed 2
>          Issue Type: New Feature
>          Components: Persistence and DAO
>    Affects Versions: 2.1, 2.1.2, 2.1.3, 2.2
>            Reporter: Joachim Müller
>             Fix For: 2.1.3, 2.2
>
>         Attachments: patch.diff
>
>
> In some environments (DB2, Oracle, PostGres) the table schema may be not equally associated
with the user name, provided in the jdbc connection parameters. At the moment it is not possible
to set the table schema used for the db connections.
> This table schema aware datasource proxy optionally injects a schema selection sql statement
into an existing database connection. It proxies a DataSource and executes an injected sql
statement on every getConnection() call.
> The proxy can be configured via the spring configurations files and therefore allows
to add table schema support to the import functionality only. This might come in handy if
you have to import into a certain table schema and cannot rely on the web application container
datasource configuration that might already support table schemas (like websphere does).
> The solution was inspired from http://forum.springframework.org/showthread.php?t=10728,
although the runtime schema switching functionality was stripped.

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