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Doubt on client receiving local component's reference(not resolved)

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Dear Ranchers,

Question :
Which are the ways in which a client can get a reference to an existing entity object's local component interface ?

A. Use finder method defined in local home interface
B. Receive the reference as a parameter in a method call.

From point A can i derive following points?

1. client should be residing in the Application deployment package.
2. It can be from Web-container(war) like Servlet (or)
It can be from Ejb-container(same jar or different jar) like SessionBean

Point B is completly out of reach for me. I didn't get it.
Please make me clear on B and any mistakes in A also.

Thanks in advance
[ December 19, 2007: Message edited by: Srinivasan thoyyeti ]
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