BC4J & JNDI Database Configuration Setting

Question

Hallo Everybody,
My Application reads from connections.xml the jdbc connection settings,
in order to connect to the oracle database.
I don't like the fact that I have to force my Customer to edit this File by Hand for the JDBC Settings.
I would like to use a "JNDI Datasource Name" for example jdbc/MyDatabase that will evaluated
from the Applicationserver (not from bc4j interal JNDI!!!!)
In this case, the Customer can define the jdbc Connection Settings in his Applicationserver
by creating a "Resource-Reference" for a javax.sqlDataSource with the name "jdbc/MyDatabase" .
( This is also Possible in Tomcat. )
This is the usual way to configure jdbc Connections in a managed Enviroment.
How can I say to the Applicaton Module "please obtain your jdbc-connections over the datasource java/MyDataBase" ???
Is this in bc4j Framework possible ? ( note: I'm new to bc4j but not to j2ee )
Thank for any Hint,
regarts,
Manolis
(sorry for my bad english, learned it through compiler error messages ;-) )

Answer 1

It worked !!!
Starting from a working Projekt that gets Connections over a JDBC Configuration,
I changed then bc4j.xcfg (I had not to recompile)
to
<?xml version = '1.0' encoding = 'windows-1252'?>
<BC4JConfig>
<AppModuleConfigBag>
<AppModuleConfig name="SimpleAppModuleLocal">
<ApplicationName>com.company.AppModule</ApplicationName>
<DeployPlatform>LOCAL</DeployPlatform>
<JDBCDataSource>DataSourceDef</JDBCDataSource>
</AppModuleConfig>
</AppModuleConfigBag>
<ConnectionDefinition name="DataSourceDef">
<ENTRY name="DsName" value=<b>"java:comp/env/jdbc/MyConcectionDS"</b>/>
</ConnectionDefinition>
</BC4JConfig>
I'm using Tomcat, and my server.xml looks like :
<context name="/examples" ....>
<Resource name="jdbc/aixBOMSDS" auth="Container"
type="javax.sql.DataSource"/>
<ResourceParams name=<b>"jdbc/MyConcectionDS"</b>>
     <parameter><name>user</name><value>scott</value></parameter>
     <parameter><name>password</name><value>tiger</value></parameter>
     <parameter><name>driverClassName</name>
     <value>oracle.jdbc.driver.OracleDriver</value></parameter>
     <parameter><name>driverName</name>
     <value>jdbc:oracle:thin:@myhost:1521:mysid</value></parameter>
<parameter>
          <name>maxActive</name>
          <value>8</value>
     </parameter>
     <parameter>
          <name>maxIdle</name>
          <value>4</value>
     </parameter>
</ResourceParams>
</context>
and the web.xml in the /examples context :
<webapp>
<resource-ref>
<res-ref-name><b>jdbc/MyConcectionDS</b></res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</webapp>
thanks,
Manolis Afentakis