Thanks for your quick feedback.

So, according to the Servlet spec, I need to declare my resource needs in
web.xml; then it's up to the container to provide those resources, and the
spec says that is configured via <ResourceParams/> in the server's
configuration? Or is that bit Tomcat specific as well?

I think the fact that I was using a GlobalNamingResource was clouding the
issue; if I wanted this DataSource to be available only to this app, I could
supply declaration in web.xml, and configuration in the <Context> OR both
the resource declaration and configuration in the <Context> (but the latter
would be non-portable). Is this correct?

Thank you again.

-Sasha

On 10/13/03 17:24, "Aleksandr Shneyderman" <alex@(protected):

>
> ResourceLink is the Tomcat's way of doing JNDI, so
> if you port your app on some other server, the deployer
> will not even know what is wrong if you do not have
> that entry in your web.xml, because this is the only thing
> that gets to be moved around (server.xml is not)
>
> Looks a bit redundant but it is there for protability.
> I do not see any other reasons for it being there otherwise.
>
> Alex.
>
>> -----Original Message-----
>> From: Sasha Borodin [mailto:sasha@(protected)]
>> Sent: Monday, October 13, 2003 5:15 PM
>> To: Tomcat Users List
>> Subject: Declaring resources - web.xml vs. server.xml
>>
>>
>> I've Googled and read the documentation without producing a definitive
>> answer to this question: exactly what IS the purpose of declaring
>> resources
>> in web.xml?
>>
>> OK, I've got a GlobalNamingResource set up:
>>
>>   <Resource auth="Container" name="jdbc/DataTrac" scope="Shareable"
>>      type="javax.sql.DataSource"/>
>>
>>   <ResourceParams name="jdbc/DataTrac">
>>      ... All of my parameters ...
>>   </ResourceParams>
>>
>> Then I've got a ResourceLink in my Context definition:
>>
>>   <ResourceLink global="jdbc/DataTrac" name="jdbc/DataTrac"
>>      type="javax.sql.DataSource"/>
>>
>> ----------------
>>
>> Now, Tomcat documentation states that I also need the following in my
>> web.xml file:
>>
>>   <resource-ref>
>>      <res-ref-name>jdbc/DataTrac</res-ref-name>
>>      <res-type>javax.sql.DataSource</res-type>
>>      <res-auth>Container</res-auth>
>>   </resource-ref>
>>
>> Why??? Everything works WITHOUT this entry. And everything works WITH it
>> as well. So my question, again, is what is the purpose of declaring
>> resources in web.xml - to (for some reason) complement the resource
>> definitions in server.xml, to replace them, or what?
>>
>> Thank you for your help.
>>
>> -Sasha Borodin
>>
>>
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>
>
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