BLOBs etc

Hi,

on the jdbc-webpages it says, that the JDBC team may decide to change
getBLOBG/setBLOB to support bytea only, and that one should use the
PostGreSQL specific LargeObject extension to acces them.

Well, how should one be abled to use the LargeObjects extension, when
ConnectionPools are used? The Connection object supplied by the
ConnectionPool implementation is usually not the one supplied by the
JDBC driver and therefor the object cannot be casted to PGConnection
anymore. So the LargeObject extension cannot be used anymore like
suggested on the page
http://www.postgresql.org/docs/7.4/static/jdbc-binary-data.html

Is there any kind of support for storing data in oid-columns which will
work with ConnectionPool implementations?

Thx
   Sven