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Session Entity Fa�ade vs. Business Delegate

 
Peter Crowther
Greenhorn
Posts: 18
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Hello all. After reading this board and making use of its links I thought I was about time that I actually registered and got involved. However, first of all I’d like to pick your brains!
Currently preparing myself for the SCWCD (obviously) I’m reading up on patterns at present. Perhaps someone would be most kind and tell me what the key differences between the Session/Session Entity Fa�ade and Business Delegate is? They both appear to introduce and additional tier separating business logic/EJBs from the client, but that’s about it. There must be some difference or am I worrying too much, as Sun states knowledge of Business Delegate only is required for the exam?
Many thanks in advance.
Peter.
 
Peter Crowther
Greenhorn
Posts: 18
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Sorry. I’ve just noticed there’s exactly the same question about 15 posts below, however, no one appears to know the exact answer. The answer given is that both do not appear together in response to a question in the exam, which is fine by me, but I would still like to know!
 
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