Swing in EJB

[Philip Smith]

The ejbcertificate site states that �The enterprise bean cannot make use of the Java Swing API� while, Mikalai Zaikin's SCBCD Study Guide (JavaRanch SCBCD Links) states � An enterprise Bean must not use the AWT functionality to attempt to output information to a display, or to input information from a keyboard. � and does not comment on Java Swing.

Which source is correct or are they both correct?

Thanks for the clarification.

Phil Smith

[Peter Rooke]

Enterprise beans are written to operate inside of an EJB container, so I don't think they could ever get access to the resources that Swing or AWT use. EJB's are not concerned about user interfaces.

Have a look at the "Model-View-Controller" design pattern and at tiered architecture.

Not sure why you would want to mix the persistence layer with the presentation layers [if you could!]. I think if you designed a system with only one architectural tier, it would end in tears!