Return-Path: Delivered-To: apmail-cocoon-users-archive@www.apache.org Received: (qmail 98810 invoked from network); 13 May 2004 00:47:46 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (209.237.227.199) by minotaur-2.apache.org with SMTP; 13 May 2004 00:47:46 -0000 Received: (qmail 25516 invoked by uid 500); 13 May 2004 00:48:09 -0000 Delivered-To: apmail-cocoon-users-archive@cocoon.apache.org Received: (qmail 25488 invoked by uid 500); 13 May 2004 00:48:08 -0000 Mailing-List: contact users-help@cocoon.apache.org; run by ezmlm Precedence: bulk list-help: list-unsubscribe: list-post: Reply-To: users@cocoon.apache.org Delivered-To: mailing list users@cocoon.apache.org Received: (qmail 25468 invoked by uid 98); 13 May 2004 00:48:08 -0000 Received: from joerg.heinicke@gmx.de by hermes.apache.org by uid 82 with qmail-scanner-1.20 (clamuko: 0.70. Clear:RC:0(213.165.64.20):. Processed in 0.278212 secs); 13 May 2004 00:48:08 -0000 X-Qmail-Scanner-Mail-From: joerg.heinicke@gmx.de via hermes.apache.org X-Qmail-Scanner: 1.20 (Clear:RC:0(213.165.64.20):. Processed in 0.278212 secs) Received: from unknown (HELO mail.gmx.net) (213.165.64.20) by hermes.apache.org with SMTP; 13 May 2004 00:48:08 -0000 Received: (qmail 10684 invoked by uid 65534); 13 May 2004 00:47:26 -0000 Received: from a183069.studnetz.uni-leipzig.de (EHLO gmx.de) (139.18.183.69) by mail.gmx.net (mp017) with SMTP; 13 May 2004 02:47:26 +0200 X-Authenticated: #3483660 Message-ID: <40A2C5B0.8040607@gmx.de> Date: Thu, 13 May 2004 02:47:44 +0200 From: Joerg Heinicke User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.6) Gecko/20040113 X-Accept-Language: de-de, de, en-us, en-gb, en MIME-Version: 1.0 To: users@cocoon.apache.org Subject: Re: Business Objects vs Data Objects [was Re:JXTemplates-what's in a name?] References: <35797.10.0.0.5.1083929717.squirrel@ags01.agsoftware.dnsalias.com> In-Reply-To: <35797.10.0.0.5.1083929717.squirrel@ags01.agsoftware.dnsalias.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Rating: hermes.apache.org 1.6.2 0/1000/N X-Spam-Rating: minotaur-2.apache.org 1.6.2 0/1000/N On 07.05.2004 13:35, Antonio Gallardo wrote: >>2. What is the best(?) OS implementation of JDO that you know of? > > Another hard question. You can try the RI from Sun used in OJB. > Personally, I am waiting for the Apache OJB own implementation (Brian > McCallister - currently working on it, thank Brian!). You can find some > hints about some OS JDO implementation here: There are some issues with the reference implementation. I found this one: http://marc.theaimsgroup.com/?l=xml-cocoon-users&m=108367741627573&w=4, but not the one I remember: When querying 20 objects out of a table with 5000 entries, for Sun' RI of JDO all 5000 objects are instantiated and the 20 are selected afterwards. That's an extreme performance killer and I switched to OJB's OTM instead of JDO. I heard much good news about the already mentioned TJDO: http://tjdo.sourceforge.net/. Joerg --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org For additional commands, e-mail: users-help@cocoon.apache.org