Domain: Webapp scenario
-----------------------
Key: TUSCANY-2680
URL: https://issues.apache.org/jira/browse/TUSCANY-2680
Project: Tuscany
Issue Type: New Feature
Components: Java SCA Core Runtime
Affects Versions: Java-SCA-Next
Environment: windows
Reporter: haleh mahbod
Message heading on ml:: Question on Tomcat / webapp support in SCA Java
High level: I'd be interested if other users have any cases where multiple
webapps would have to access a
single SCADomain containing back-end services in the same JVM as the web
container.
Detail:
know it has been a while since we exchanged information on this thread, but I
wanted to
point out that the scenario we want to support, which is a single SCADomain in
the JVM
supplying services to multiple webapps is similar to a case that Spring
Framework already
supports, which is sharing a parent application context across multiple webapp
application
contexts.
In the Spring case, they have this thing called SingletonBeanFactoryLocator
that, from
any number of webapp application contexts, can locate the back-end services
application
context. This can be made the parent context of the webapp contexts, which
makes the
back-end context beans available to the webapps.
Here's a link to a web page that describes it:
http://blog.springsource.com/2007/06/11/using-a-shared-parent-application-context-in-a-multi-war-spring-application/
It would be really nice if Tuscany could support something similar to this for
SCADomains
to allow multiple wars to reference the same set of SCA components and services.
I also don't mind at all having to configure Struts to delegate everything
through Spring to do
dependency injection, and I would also not mind having to do this to get SCA to
inject service
references. This would be better than requiring a modified Tomcat runtime with
"deep SCA
integration", at least for our purposes.
I'm curious if there has been any progress in the area of shared services in
the same JVM as
multiple wars. If so, can you send me a pointer?
Thanks.
--Rich
On Thu, Aug 14, 2008 at 10:09 PM, Rich Smith (rjsmith2) <[EMAIL PROTECTED]>
wrote:
<snip>
I'd be interested if other users have any cases where multiple webapps would
have to access a
single SCADomain containing back-end services in the same JVM as the web
container.
Yes, it comes up quite often, for example
http://apache.markmail.org/message/ttssxoruzpndkado
I think we will get this sorted out in Tuscany soon now that the SCA JEE spec
is out and we're getting more experience with Tuscanys current distributed
domain approach.
(I'm still thinking about your previous email)
...ant
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