RE: JDBC Connection pooling

["Gary L Peskin" <garyp@xxxxxxxxxxxx>]

Marady --

Are you asking how to use connection pooling with iSeries WAS or in some
other environment.  If you're interested in the iSeries WAS
implementation, see
http://publib.boulder.ibm.com/was400/40/AE/english/docs/datcpovr.html,
for example.

HTH,
Gary

> -----Original Message-----
> From: java400-l-admin@midrange.com
> [mailto:java400-l-admin@midrange.com] On Behalf Of
> MaradyPrak@BigLots.com
> Sent: Monday, March 25, 2002 12:00 PM
> To: java400-l@midrange.com
> Subject: Re: JDBC Connection pooling
>
>
>
> Dave,
>
> This is great if I have a long running application that needs
> to hit the database back end multiple times.  Do you know of
> a way to incorporate datasource connection pooling with JNDI
> or something similar.  What I'm interested is something that
> always running and can give out connections to the database
> through the JNDI look-up.  So, my other applications running
> can get connection from the same central naming directory
> services.  This way all  other applications  do not have to
> insatiate the classed with the connections and datasource
> up-front every time.  For example, like the Websphere
> Application server, it have a central datasources, an all the
> applications can use it when ever and never have to worry
> about creating datasource or connection to the database for
> every execution.  I don't know if I'm explaining my-self
> clearly or not.  But let me know if you want me to explain it
> in another way.
>
>
> Kind Regards,
>              Marady Prak - Technical
> Specialist/Administrator, Himalaya System Big Lots, Inc 300
> Phillipi Road Columbus, OH 43228
> Phone: 614-278-7186   Fax: 614-278-4769
> http://www.eonestopshop.com
>
>
>
>
>                     David Gibbs
>                     <dgibbs@mks.com>         To:
> "'JAVA400 List'" <JAVA400-L@midrange.com>
>                     Sent by:                 cc:
>                     java400-l-admin@mi       Subject:     Re:
> JDBC Connection pooling
>                     drange.com
>
>
>                     03/25/2002 01:21
>                     PM
>                     Please respond to
>                     java400-l
>
>
>
>
>
>
> Mike Silvers said:
> > Does anyone have a working example of using JDBC connection
> pooling?
> > I have done several searches on the web and found article after
> > article, but I would like to see a real working example of JDBC
> > connection pooling..
>
> Yes, as a mater of fact, I just figured this out a few weeks ago.
>
> I think that the reason you couldn't find much is, connection
> pooling is not part of Java 2 1.3 (I think).  It might be in
> 1.4, but I'm not sure.  JDBC connection pooling is database
> and/or environment specific.
>
> Here's what I did to create a JDBC connection pool using JT400...
>
> // build your connection pool ...
>
> AS400JDBCConnectionPoolDataSource dataSource =
>            new AS400JDBCConnectionPoolDataSource(hostId,
> userid, password); dataSource.setLibraries(fileLibrary);
> dataSource.setTransactionIsolation("none");
> AS400JDBCConnectionPool pool = new
> AS400JDBCConnectionPool(dataSource);
> pool.setMaxConnections(poolSize);
>
> // to get a connection
> Connection con = pool.getConnection();
>
> // to give the connection back
> con.close();
>
> david
>
> --
> David Gibbs
> Sr. Software Engineer / R&D / MKS Inc., www.mks.com
> Lombard, IL, USA; tel: 630-495-2108; fax: 630-495-3591
> Build Better Software