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EJB-QL addresses Object-Relational issue

 
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... well maybe.
Scott, I would very much like to know you views on EJB-QL as a means of dealing with the "Object-Relational" Impedance Mismatch, as your book so aptly says it.
Setting aside the present lack of things like GROUP BY in EJB-QL and non-standard isolation-level control, EJB-QL seems like a logical framework for interfacing the two paradigms.
The downsides that I see, just off-hand, are (1) stored procedures run against the grain of object design, and (2) legacy RDBMS application's security approach, especially field-level security through views for example, can defeat EJB-QL, forcing you to go to yucky DAOs.
Again, thanks in advance for your thoughts
 
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