How to configure a Jboss Datasource?

Configuring a Datasource in Jboss very easy
Step 1: copy the original oracle-ds.xml from $jboss-home\docs\examples\jca\oracle-ds.xml to 
$jboss-home\server\default\deploy\
Step 2: modify the XML file as follows
<datasources>
 <local-tx-datasource>
 <jndi-name>OracleDS</jndi-name>
 <connection-url>jdbc:oracle:thin:@IP:PORT:SID</connection-url>
<use-java-context>false</use-java-context> 
<!-- this is required if u want to connect to DB remotely  from Main method-- >
<driver-class>oracle.jdbc.driver.OracleDriver</driver-class>
   <user-name>user</user-name>
   <password>password</password>
   <min-pool-size>5</min-pool-size>
   <max-pool-size>100</max-pool-size>
   <query-timeout>60</query-timeout>

   <exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.OracleExceptionSorter</exception-sorter-class-name>
   <metadata>
    <type-mapping>Oracle9i</type-mapping>
   </metadata>
  </local-tx-datasource>
  </datasources>
 
Step 3. Drop the JDBC driver jar into Jboss classpath (easiest approach - drop the jar file in to /server/default/lib)