[jboss-user] [EJB 3.0] - Re: Need Help! encounter strange Exception:not used by any E

[xinhua]

Hi,
i use DAO pattern, all CRUD fuctions are supposed come from GenericDAO 
for example, in GenericDAO i defined findAll(), findById()....then , i let EmailTemplate extends GenericDAO to get such frequently used functions and these crud functions are also INVOKED in my SLSB.

If the reason of this exception is i did not defined any method in my DAO session Bean, please tell me what is the pupose of this Exception, against inheritance in EJB3 world?



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