Looking Up an EJB 3.0 Resource Manager Connection Factory

Using EJB 3.0, you can look up a resource manage connection using resource injection (see "Using Annotations") or the InitialContext (see "Using Initial Context").

Using Annotations

Example 19-29 shows how to use annotations and dependency injection to access an EJB 3.0 resource manager connection factory.

Example 19-29 Injecting an EJB 3.0 Resource Manager Connection Factory

@Stateless public class EmployeeServiceBean implements EmployeeService
{
    ...
    public void sendEmail(String emailAddress)
    {
        @Resource Session testMailSession;
        ...
    }
}

Using Initial Context

Example 19-30 shows how to use the initial context to look up an EJB 3.0 resource manager connection factory.

Example 19-30 Looking Up an EJB 3.0 Resource Manager Connection Factory

@Stateless public class EmployeeServiceBean implements EmployeeService
{
    ...
    public void sendEmail(String emailAddress)
    {
        InitialContext ic = new InitialContext();
        Session session = (Session) ic.lookup("java:comp/env/mail/testMailSession");
        ...
    }
}

For more information, see "Configuring the Initial Context Factory".