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From Vikrant Yagnick <>
Subject OpenEJB Startup Performance
Date Mon, 07 Sep 2009 12:01:16 GMT
Hi All,

We are creating a  "offline" version of an online application using Oracle Lite, i.e. basically
our J2EE application will work in a stand-alone mode on a laptop with the embedded Oracle
Lite database.

Since, Oracle Lite comes in-built with it's own web-serve (WebToGo) we decided to embed openEJB
as our EJB container intra-vm so that we could deploy our EAR as is. It works like a charm!!!

I had a couple of questions(Sorry, we are new with openejb):

1)      Is it correct to use openejb in such a way, since it will be used in production environments.
(Any tips on tuning could help).

2)      OpenEJB builds up the application assembly everytime we start the webtogo server(it
is a disguised Oracle 10.1.3 Standalone OC4J Server) on the client.  This does take 2-3 minutes
due to the number of EJB's we have. Is there a way for OpenEJB to persist this application
assembly so that when it startups a second time, it does not build the entire assembly again.
This way there will be no delay if the server has to be re-started.

Vikrant Yagnick
Software Designer
MajescoMastek Ltd | Mastek Millennium Center,Millennium Business Park, Mahape, Navi  Mumbai
400-710   |
(T) 91 22 66952222 Extn - 5230 | Mobile: +919833490598 |

Mastek is in NASSCOM's 'India Top 20' Software Service Exporters List.
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