Session FacadeThe book has now been published and the content of this chapter has likely changed substanstially.
Hide the details of how a service is implemented behind an interface.
Use a session bean as a facade to encapsulate the complexity of interactions between the business objects participating in a workflow. The Session Facade manages the business objects, and provides a uniform coarse-grained service access layer to clients.
From [CJ2EEP] at http://java.sun.com/blueprints/corej2eepatterns/Patterns/SessionFacade.html.
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