Here are some quick notes on configuring a data source for an Oracle database in Jboss. Data Source are common access points to different sources of data, provided by the application server framework to the applications running in it. These instructions are very specific to the 5.x EAP version. Jboss SOA has a pretty easy ant based script to configure data sources. I am not sure why Redhat didn’t think it would be good to include it as part of the EAP package too.
- Download the latest version of the JDBC driver from Oracle at http://www.oracle.com/technetwork/database/features/jdbc/index-091264.html . You can also get to this link by searching for “download ojdbc jar” in Google. In fact, I would recommend that, given that Oracle might change the link for future editions. You will need an Oracle account to download the driver file.
- Copy the driver file to $JBOSS_HOME/server/$JBOSSS_PROFILE/lib
- Disable the default hsqldb datasource provided by Jboss. This is good for development purposes, but for any application server you want to deploy into a production environment, you need to replace it with a more robust DBMS. It will have a major impact on performance. There are two places hsqldb is referred to in the default install
- $JBOSS_HOME/server/$JBOSSS_PROFILE/deploy/hsqldb-ds.xml
- $JBOSS_HOME/server/$JBOSSS_PROFILE/deploy/messaging/hsqldb-persistence-service.xml
- I usually rename these files with a DO_NOT_USE prefix. You can delete them too, but I leave them around just in case.
- Configure the Oracle data source by copying from the sample files and configuring them
- $JBOSS_HOME/server/$JBOSSS_PROFILE/deploy/oracle-ds.xml (you can find the sample file at $JBOSS_HOME/docs/examples/oracle-ds.xml)
- $JBOSS_HOME/server/$JBOSSS_PROFILE/deploy/messaging/oracle-persistence-service.xml (you can find the sample file at $JBOSS_HOME/docs/examples/oracle-persistence-service.xml)
- Comment out the following line in the file if you are not using clustering in the application server [code] <attribute name="ChannelFactoryName">jboss.jgroups:service=ChannelFactory</attribute> [/code]
Restart Jboss and it will create all the required tables and objects in the schema provided in the connect string. It is implied that you have created a schema in Oracle with the required privileges.
