JDBC changes for 7.2... some questions...

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Folks-

  I'm looking into some modifications for the Castor project on how we get
identies from inserted objects into the database.  Specifically, if we have
used the SERIAL type to link in a sequence number during row insertion, it would
be great to get that sequence number when we do the insert.  Both Oracle and
mssql have something to provide this.  Getting the OID would be second-best
solution for us.

  Now, I understand that in the Statement class, we have getInsertedOID() in the
table.  However, the problem we run into is that this isn't accessiable if we
use something like poolman to provide database pooling of connections.  (You
get the poolMan Statement object which is wraps the Statement classes of the
driver.)

  So, what I'm looking for is some of the following ways to get the primary key
back, or the OID if nothing else...

  1) Being able to use the RETURNING clause in prepared statements, like this
     "INSERT INTO tableName (key1,...)
                   VALUES (value1,...)
                   RETURNING primKeyName INTO ?"
     Which is what Oracle provides.

  2) Working like Sybase and call "select @@OID" on the next call, which would
     be trapped by the statment object to return a resultset with the oid of
     the last inserted oid.

  3) or, someother way that where one doesn't need direct access to method
     calls to get 'getInsertedOID()', but indirect ones.

Thoughts?


Virtually,
Ned Wolpert <ned.wolpert@knowledgenet.com>

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