Problem defining JNDI data source.

["David C. Hicks" <dh...@i-hicks.org>]

I'm having difficulty defining a JNDI data source using C3P0 pooling in 
Tomcat 5.5.9.  Here is the context descriptor for my app:

<Context path="/ems" reloadable="true">
    <Logger className="org.apache.catalina.logger.SystemOutLogger" 
verbosity="4" timestamp="true"/>
    <Loader className="org.apache.catalina.loader.DevLoader" 
reloadable="true" debug="1"/>
    <Resource
        name="jdbc/EmsDb"
        description="DB Connection"
        auth="Container"
        driverClass="net.sourceforge.jtds.jdbc.Driver"
        minPoolSize="5"
        maxPoolSize="10"
        acquireIncrement="1"
        user="sa"
        password=""
        factory="org.apache.naming.factory.BeanFactory"
        type="com.mchange.v2.c3p0.ComboPooledDataSource"
        jdbcUrl="jdbc:jtds:sqlserver://mars:1433/ems?autoReconnect=true"
        />
</Context>

Here is the resource-ref portion of my application descriptor:

  <resource-ref>
      <description>Database Connection</description>
    <res-ref-name>jdbc/EmsDb</res-ref-name>
    <res-type>javax.sql.DataSource</res-type>
    <res-auth>Container</res-auth>
  </resource-ref>

And here is the error I get from Tomcat when deploying the application:
2005-09-27 00:55:33,559 [http-8080-Processor25] ERROR 
JDBCExceptionReporter - Cannot create JDBC driver of class '' for 
connect URL 'null'

It almost seems as if the resource-ref is somehow overriding the 
Resource definition in the application context.
Any suggestions?

Thanks,
Dave


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