This chapter covers the configuration of the Java Enterprise services that ship with the application server. Many of the services are configured within their own subsystem. These subsystems can be added or removed depending on whether or not the service is required in your application. We will look at the most common ones in the following order:
Connecting to a database
Configuring the Enterprise JavaBeans container
Configuring the messaging service
Configuring the transaction service
Configuring concurrency