Sams Teach Yourself J2EE™ in 21 Days

Client's View

Yesterday, you saw how to use JNDI to obtain a reference to a Session bean home and how to obtain a Session bean by calling the appropriate create() method. Now that you have a full understanding of how Session beans work, there are a few other points that are worth appreciating.

First, if your client has a reference to a stateless Session bean, although it should call remove() when it is finished with the EJB, this method call doesn't actually do particularly much. In particular, it won't release any bean resources itself, as shown clearly by the state chart diagrams in Figure 5.3. What this will do is allow the EJB container to remove the EJBObject proxy for the bean.

Conversely, calling create() for a stateless Session bean doesn't ...