>> The containers can have 2 different policies here: either
>> serialise access
>> to the entity beans (e.g. WebLogic) or rely on the resource manager to
>> provide the transaction isolation (e.g. WebSphere).
>If isolation is left to the database, how does the WebSphere container
>provide isolation of EJB object state?
>Regards
>Alex Thomas
That's the point. The WebSphere container in itself doesn't provide
that isolation. It doesn't have to. It simply honours the session bean's
transaction demarcation (TX_BEAN_MANAGED or TX_REQUIRED) and transaction
isolation (TRNSACTION_SERIALIZABLE) requirements by delegating them to
the RDBMS/OODBMS.
Regards,
Hamid
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