Colin, you are absolutely right.
Keith, you might want to also refer 'The J2EE Tutorial' book from Sun. I thing there is also free copy available online. This has good info on EJBQL.
p.s. the questions on EJB-QL are not so tricky. They are pretty straight-forward. Still wondering why I lost marks there.
I have few questions for Kathy Please respond if possible...
Currently I am trying to convince my boss to use CMP Entity Bean. While studying our current system, I found some places, where we want to allow
'DYNAMIC QUERYING' . Say for example, a user selects the field and relational operators from screen and the query is generated. Currently EJB-QL does not support this
. But the application service providers (BEA, IBM & Borland) had made a provision to run query dynamically. But then I discovered that one of our dynamic query has
'OUTER JOIN', again not supported by EJB-QL
.
Was there any reason for omitting out these features?
When (If any) will these be introduced ?
(It took more than 27 months to go from EJB 2.0 to EJB 2.1)
Thanks.
Peter Vennel
SCJP,
SCJD,SCWCD,SCBCD,IBM-XML,MCP.
[ February 05, 2004: Message edited by: Peter Vennel ]
[ February 05, 2004: Message edited by: Peter Vennel ]