https://issues.apache.org/bugzilla/show_bug.cgi?id=53289
Priority: P2
Bug ID: 53289
Assignee: dev@tomcat.apache.org
Summary: Clarify ResourceLink example that uses
getConnection(username, password)
Severity: enhancement
Classification: Unclassified
OS: Windows XP
Reporter: knst.koli...@gmail.com
Hardware: PC
Status: NEW
Version: 7.0.27
Component: Documentation
Product: Tomcat 7
It was reported on the users list:
http://marc.info/?t=133780532900005&r=1&w=2
http://markmail.org/thread/26yhdl7pfhdm2dic
In documentation there is example [1] on using a ResourceLink with specific
value for the factory, org.apache.naming.factory.DataSourceLinkFactory. It
allows to specify custom username and password while reusing connections from
a global datasource pool. This feature was added per bug 49543.
The problem is that there is an important bit that is lacking from the
description: this feature requires support from the pool implementation for
getConnection(username, password) method.
- In Apache Commons DBCP pool there is no support for that method [2]. An
UnsupportedOperationException will be thrown. (DBCP 1.4)
- In Apache Tomcat JDBC pool support for this feature is off by default
(username and password are ignored). It can be enabled by setting
alternateUsernameAllowed="true". [3]
[1] http://tomcat.apache.org/tomcat-7.0-doc/config/context.html#Resource_Links
[2]
http://commons.apache.org/dbcp/apidocs/org/apache/commons/dbcp/BasicDataSource.html#getConnection%28java.lang.String,%20java.lang.String%29
[3] http://tomcat.apache.org/tomcat-7.0-doc/jdbc-pool.html
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