[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] EJBs antipatterns entity beans remote applications and email [See messaging] EmployeeUser class encapsulation improper enterprise concurrency [See concurrency] Enterprise Integration tier Enterprise JavaBeans [See EJBs]2nd [See EJBs] enterprise layer Entity Façade [See Composite Entity pattern] Entity Façade pattern entry role within associations equals( ) method equalsVersion( ) method event messages Event-Driven Consumer pattern 2nd 3rd Everything Is an EJB, antipattern Excessive Layering antipattern 2nd exclusive lock extensibility techniques for extension points in use cases Extract |