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    What is session facade?

    A session façade is an EJB design pattern in which a session bean is works like a wrapper over entity beans. A client does not have a direct access to Entity beans but through session beans only for reducing network overhead. Usually stateless session beans are used as single access point for the clients but stateful session beans can also be used for the same purpose. A layer of session beans exposed to clients to access not only gives a clean approach towards client access to bean components but also reduce network calls so as to make the whole system of high performance.

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