Kevin wrote:

I am a newbie to Struts.

When I try to use the Oracle JDBC extension to take advantage of the Oracle batch 
update feature, I got an
exception "org.apache.commons.dbcp.DelegatingPreparedStatement"
It happens when I try to cast a PrepareStatement to OraclePreparedStatement. (It works 
fine without the cast)

Any idea why?


What is going on here is that you are getting a commons connection pool statement which wraps the Oracle statement but not an Oracle statement itself.

What you are trying to do is not exactly sanctioned by J2EE. The container has no obligation to give you a particular class of DataSource, Connection, or Statement based upon the Driver class. It is only required to give you something that implements the interface.

That said, I am not sure why you need to cast to a special Oracle object; the java.sql.PreparedStatement interface supports batch updates abstractly.

Evan.


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