Hi Swayam,
sorry for the late reply.
Swayam Vemuri -X (swvemuri - WIPRO at Cisco) wrote:
Hi
Can anyone please let me know whether OJB supports below
And how it does each of the below
(a) Does it support select-before-update?
Sorry nope. You have to do this by your own. We support optimistic (and
pessimistic) locking
http://db.apache.org/ojb/docu/guides/lockmanager.html
but on update always all fields will be written to DB (except if you are
using different metadata profiles, but this won't help to detect changed
fields)
http://db.apache.org/ojb/docu/guides/metadata.html
(b) Does it implement prepared statement caching?
Yep, if you use the DBCP based ConnectionFactory implementation.
http://db.apache.org/ojb/docu/guides/connection.html
(c) Does it support Role based access?
You have to build this upon OJB. OJB is only a O/R mapper.
(d) Does it support views?
It's not official documented, but some OJB-user using views within OJB.
Please search the user-list.
regards,
Armin
Thanks
Swayam
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