Hi, Rajini. That approach sounds fine.
A question I have then is how to use a distributed SCA runtime (multiple
nodes) where
each node is running OSGi. If SCA is not wiring references, then how
would a service
in one JVM get injected references from another JVM?
--Rich
________________________________
From: Rajini Sivaram [mailto:[EMAIL PROTECTED]
Sent: Friday, August 22, 2008 11:35 AM
To: [email protected]
Subject: Re: Question on OSGi implementation, service wiring, Spring DM
Rich,
osgi-supplychain uses <implementation.osgi/> which enables applications
using the OSGi programming model to be included in a SCA composition. If
you wish to use reference injection, you can use OSGi declarative
services. There is a sample in the same directory
samples/osgi-supplychain which uses DS.
We dont support SCA reference injection with OSGi components using
<implementation.osgi/> because OSGi is a far more dynamic environment.
On 8/4/08, Rich Smith (rjsmith2) <[EMAIL PROTECTED]> wrote:
Is the osgi-supplychain example current?
The reason I ask is that it requires all bundles to use a
standard BundleActivator
that wires the service references, instead of having the Tuscany
OSGi implementation
wire the references using a bundle listener. (It also doesn't
use ServiceTracker, but
I don't know if that's due to some implementation constraint.)
I want to know if this has changed. The OSGi implementation
should wire the
references from the implementation bundle without requiring the
wiring logic in all of
the component bundles. This example, as-is, really violates the
SCA IoC principle
since it requires components to wire their own references rather
than having them
injected.
Also, I'd like to second the question that another user asked
about whether or not
there are any plans to use Spring DM to wire service references
across bundles.
We would definitely like to have Spring DM integration with OSGi
for our application.
Spring DM integration would definitely solve the service wiring
problem, as well as
providing important support for OSGi-based web applications,
plus just generally
Spring integration in an OSGi environment.
Without Spring DM, our application can't use the OSGi
implementation.
Please advise.
Also, if any Tuscany developers feel that these things are
missing, but don't have
the bandwidth or plans to add them, please reply to me offline
about the difficulty
level of doing this, and where to get started, etc.
--Rich
--
Thank you...
Regards,
Rajini
