From: Mark Diggory
>Is there something unique about Oracle Application Server that is stopping 
>two separately deployed web-apps from both using the same db?

I suspect you would be as surprised as I would if you were told that was the 
case. It would be a massive limitation.

>I'm a little naive about using Oracle Application Server / Oracle DB. What 
>stops you from deploying each war separately? What issues would arise that 
>are a concern if you did?

The question is whether both WARs can reside with the same OC4J instance, or 
whether they have to be in separate ones. I've only got a vague 
understanding of what an OC4J instance is, but to put in context, it sounds 
like it has a roughly similar scope to a CATALINA_BASE instance (then 
imagine Tomcat running with multiple simultaneous instances of those).

I can see administration benefits to having both web apps in a single 
instance (and some restrictions when running in spearate instances). Judging 
by question 25 of the FAQ, this should be possible:

http://www.oracle.com/technology/tech/java/oc4j/1012/collateral/OC4J-FAQ-101202.pdf

25 Where can I put shared class libraries so they are accessible to all my 
deployed applications?
OC4J is configured by default with a shared directory. The directory is 
<J2EE_HOME>/applib. Any class libraries that are placed in this directory 
will be accessible to applications deployed on OC4J.

The shared directory is specified using the <library> tag in the default 
application configuration file <J2EE_HOME>/config/application.xml.
<orion-application autocreate-tables="true" 
default-data-source="jdbc/OracleDS">

<web-module id="defaultWebApp" path="../../home/default-web-app"/>
<web-module id="dms0" path="../../home/applications/dms0.war"/>
<web-module id="dms" path="../../home/applications/dms.war"/>
<persistence path="../persistence"/>

<!-- Path to the libraries that are installed on this server.
     These will accesible for the servlets, EJBs etc -->
<library path="../applib"/>
...
</orion-application>

For more information about class Loading and packaging issues, see the 
technical note on OTN --  
http://otn.oracle.com/tech/java/oc4j/pdf/ClassLoadingInOC4J_WP.pdf.

G

This email has been scanned by Postini.
For more information please visit http://www.postini.com


-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys-and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
DSpace-tech mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/dspace-tech

Reply via email to