Datasource.getConnection(username, password)

Question

I was able to setup the bookstore example in the Webservices tutorial. In this example they make use of a JDBC connection, using JNDI contexts.
I am using Tomcat 4.1.18 as Web container and I have a configuration file with the JDBC parameters. The problem is that username and password are included in this xml file. I want to leave these out and use the getConnection(username, password) method instead.
When I do this I get an UnsupportedException. The stacktrace is mentioning something about PoolingDataSource. I am missing something or is it just not possible using this method in this configuration??
java.lang.UnsupportedOperationException
at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSo
urce.java:125)
at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource
.java:329)
at database.BookDBAO.<init>(Unknown Source)
at listeners.ContextListener.contextInitialized(Unknown Source)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContex
t.java:3269)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:3
598)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase
.java:821)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:80
7)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:579)
at org.apache.catalina.core.StandardHostDeployer.addChild(StandardHostDe
ployer.java:529)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.jav
a:228)
...

Answer 1

The getConnection(username, password) method in apache DBCP (Data Base Connection Pool) implementation always returns a java.lang.UnsupportedOperationException. In fact this is the only thing it does.
You must use the getConection() method instead.
If you use a framework that calls the getConnection(username, password)
method and you don�t have any way of changing that call try to compile yourself the tomcat dbcp jar file changing the method code to:
public Connection getConnection(String uname, String passwd)
throws SQLException
//OLD CODE: throw new UnsupportedOperationException();
return getConnection();
So it works in the same way that getConnection();