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From "Daire Treanor (CAPE)" <daire.trea...@capetechnologies.com>
Subject RE: Discovering .jars in .war
Date Wed, 29 Oct 2003 15:21:23 GMT
Hi Stephen,

Yeah, the problem is that I want each .jar Service to be detected
dynamically without each .jar being explicitly listed on the CLASSPATH, or
anywhere for that matter. I was wondering if n-1 number of .jar Services
could be deployed and detected on startup. As I mentioned earlier I have
managed to detect .jar using a standalone application but I want it to be a
dynamic as possible in the deployed environment. Am I being greedy here do
you think?

Thanks for the link... does this not suggest that what I'm trying to do *is*
possible?

Snippet from link supplied under the "Class Loader Definitions" paragraph.
WebappX - A class loader is created for each web application that is
deployed in a single Tomcat 4 instance. All unpacked classes and resources
in the /WEB-INF/classes directory of your web application archive, plus
classes and resources in JAR files under the /WEB-INF/lib directory of your
web application archive, are made visible to the containing web application,
but to no others.

Cheers,
Daire

-----Original Message-----
From: Stephen Westbom [mailto:swestbom@yahoo.com]
Sent: 29 October 2003 15:09
To: Jakarta Commons Users List
Subject: Re: Discovering .jars in .war


You really will want to be in the system classpath for the service to work.

--- "Daire Treanor (CAPE)" <daire.treanor@capetechnologies.com> wrote:
> Hi All,
>
> Could someone please tell me if is it possible to use
> org.apache.commons.discovery.tools.Service to discover one or more
services
> that are of a given type and are deployed in  a .war file in Tomcat. Each
> service is autonomous and is stored in a .jar file as per the JDK1.3
> 'Service Provider' specification. (
> http://java.sun.com/j2se/1.3/docs/guide/jar/jar.html ). It is possible to
> discover these services using this method in a standalone application but
> when they are deployed in a .war they are not detected when Tomcat is
> started. Has anyone had any experience in this area and able to give me
some
> tips.
> Regards,
> Daire
>
>
>
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