At 10:30 AM 4/19/99 -0500, you wrote:
>My understanding is that Oracle 8i does not support Entity beans,
That is correct, no Entity bean support. In addition, while you can code
your bean to be STATELESS, Oracle has no facility for a STATELESS bean pool
where you may have x number of STATELESS beans initialized and ready for
processing. This is due to the speed of their STATEFUL beans which makes a
STATELESS bean redundant (this from Oracle).
>and that the 8i product has an O-R focus rather than an object db focus.
Oracle 8i supports objects but not objects in terms of Gemstone or another
OODB. The first thing you will notice about Oracle collections (called
nested tables or VArrays) is that a collection must be homogenous. In
addition, there is no inheritance of Oracle objects.
>
>But Hal mentioned earlier that 8i does provide some sort of direct object
>persistence mechanism for those that want it.
Yes, the JPublisher tool will examine your schema and generate the
necessary Java classes that represent that schema. However, at this time
you cannot serialize these Java classes nor is there a facility to add or
remove an object out of a collection (roll your own). There is also a
problem with the dynamic creation of objects. You cannot add an object to a
collection unless it has first been added to the object's base table.
Oracle is unable to create references on the fly. I have had a discusion
with the developers and hopefully some of these problems will change in
the next rev. The nice thing is (depends on your point of view) that is
uses the JDBC API so your code is somewhat portable (sans the Oracle 8i
generated classes).
>
>What is this mechanism?
JPublisher
>Does Oracle 8i ship with JDBC 2.0 support as previously
>advertised, or has this been postponed to a later version?
Depends, the Oracle Thin Driver (type IV) complies with the JDBC 1.22
standard. I believe the Java Server driver supports many of the 2.0 API
calls but I don't think it is fully 2.0 compliant.
>
>Thank you for assistance,
>Corby
>
Perry Hoekstra - [EMAIL PROTECTED]
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