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Why EJB need interface

 
Greenhorn
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Hi Friend,
I have one chilly doubt, why we are using interface(LOCAL and REMOTE) in EJB. could you please explain.
 
author & internet detective
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To separate definition from implementation. And in the case of remote so as to not share the implementation.
 
Greenhorn
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Hi karthik the reason behind is ejb are built for accessing remote enviroment which is completely different from the working environment.....so as to establish the connection bw a stub and skeleton we use these interfaces as a common skeletal environment.thanks in advance :-))
 
Greenhorn
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I still don't understand, a program is already written,
so if it calls the third method of the interface it means it ALREADY knew that this method was in the interface, and it also already knew it's signature.
so why bother to retrieve the interface, why not just send "execute methoda(param b);" ?!
 
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Sounds to me like you need to read up on the benefits of using interfaces. This is more than just an EJB issue.
 
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