From jim.barrows at gmail.com  Sat Mar 16 01:32:16 2013
From: jim.barrows at gmail.com (Jim Barrows)
Date: Fri, 15 Mar 2013 18:32:16 -0700
Subject: [postmodern-devel] A question about connection pooling,
	and the many ways to connect.
Message-ID: <CA+Cm1HOTHNRefThdD9H8L5_aSDjfbirf93hbxO2=OkDGFm+uOQ@mail.gmail.com>

I'm a java developer, and I think I'm expecting something to happen that's
not.  In Java I setup a pooled connection, and just use it.  The
connections pool themselves.

I had thought that by doing:
(setf *database* (connect "PomBanDone" "pombandone" "pombandone"
"localhost" :pooled-p T)))
that I would get connection pooling.

However now that I'm getting a better understanding of Lisp and I think
Postmodern, that connections aren't getting pooled.  I think I have to use
(with-connection (spec &body body) in order to make the connection pooling
work.

Is that the case?  If not, why would I want to use with-connection?

Thanks!
-- 
James A Barrows
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From marijnh at gmail.com  Sat Mar 16 21:24:28 2013
From: marijnh at gmail.com (Marijn Haverbeke)
Date: Sat, 16 Mar 2013 22:24:28 +0100
Subject: [postmodern-devel] A question about connection pooling,
 and the many ways to connect.
In-Reply-To: <CA+Cm1HOTHNRefThdD9H8L5_aSDjfbirf93hbxO2=OkDGFm+uOQ@mail.gmail.com>
References: <CA+Cm1HOTHNRefThdD9H8L5_aSDjfbirf93hbxO2=OkDGFm+uOQ@mail.gmail.com>
Message-ID: <CAJnHWXuLgMnGSvXqNoprh2P=oEyF8J5jLbXMSwrRHwUPJMLabw@mail.gmail.com>

Hi Jim,

You're right, you have to use local connection and specify that you
want them to be pooled. (This model has much less overhead -- a single
synchronization point -- than a  model where a single handle can be
used in a multi-threaded way.)

Best,
Marijn

On Sat, Mar 16, 2013 at 2:32 AM, Jim Barrows <jim.barrows at gmail.com> wrote:
> I'm a java developer, and I think I'm expecting something to happen that's
> not.  In Java I setup a pooled connection, and just use it.  The connections
> pool themselves.
>
> I had thought that by doing:
> (setf *database* (connect "PomBanDone" "pombandone" "pombandone" "localhost"
> :pooled-p T)))
> that I would get connection pooling.
>
> However now that I'm getting a better understanding of Lisp and I think
> Postmodern, that connections aren't getting pooled.  I think I have to use
> (with-connection (spec &body body) in order to make the connection pooling
> work.
>
> Is that the case?  If not, why would I want to use with-connection?
>
> Thanks!
> --
> James A Barrows
>
> _______________________________________________
> postmodern-devel mailing list
> postmodern-devel at common-lisp.net
> http://lists.common-lisp.net/cgi-bin/mailman/listinfo/postmodern-devel
>