new to orion datasources one simple question

[Robert Balahura]

Hi, I am using a JDBC 2.0 driver and configured the data-sources.xml with
this driver.

I want to know which JNDI location I should be looking up to getConnection()
in my application to use connection pooling - these are the choices:

location="jdbc/DefaultDS"
pooled-location="jdbc/DefaultPooledDS"
xa-location="jdbc/xa/DefaultXADS"
ejb-location="xx"

Could someone explain when you use each of these contexts for a 2.0 driver.
I'm especially confused about using location or pooled-location contexts.