>Has anyone experimented with the idea of mapping entity beans with RDBMS
>views ?
You want to look into Oracle Business Components for Java (BC4J)
it is almost exactly what you are describing and they use session beans,
no entity beans at all.
See the Oracle web site.
Regards
Javier Borrajo
www.tid.es
>Imagine that you want to produce summary reports about the contents of
>several large database tables. You'd like to do this through entity
>beans for a number of good reasons like making security checks at the
>entity level and adding some business logic. But if you end up coding
>complex in-memory navigations between entity instances, it's easy to
>imagine horror scenarios involving massively inefficient use of the
>RDBMS.
>
>What about defining a number of (materialized ?) views that would let
>the RDBMS take care of the query processing ? Instead of coding complex
>navigations, you'd create "aggregate" entity beans mapped against
>summary views. Did anyone try this ? I'm thinking mostly of read-only
>views, but updatable views would also be interesting in some scenarios.
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