Select the EJB Module node and search for the OracleDBConnection connection. In
the Select IDE Database Connection window, select the OracleDBConnection and
click on Copy Connection .
The datasource corresponding to the OracleDBConnection is jdbc/
OracleDBConnectionDS . The Annotated EJB 3.0 Bean Classes will list the annotated
entity bean after we have created the entity class in the next section. As we won't be
using an ejb-jar.xml deployment descriptor, because the deployment descriptor is
optional in EJB 3.0, the ejb-jar.xml option won't be used.