I'll try to answer all your questions.
Tell me if I forgot one ;)
The only JBI compliant way to access the JBI bus are
* sending a message through a Binding Component
* using an existing DeliveryChannel
The second option is usually done when inside an existing component.
The default ServiceMix client uses this way, but creates a lightweight
component to obtain a
DeliveryChannel : this means it can only be used within the same jvm.
The remote ServiceMix client can be used when the jms flow is used on
the ServiceMix container:
it creates a lightweight clustered container to communicate with the
other container.
Accessing the JBI bus from a servlet or an EJB must be done through a
BC, unless you can have a direct access
to the JBIContainer object (if you embed it in a web app for example).
We should provide a better way to do that :
i think we could put an interface in the jndi context so that everyone
will be able to communicate with the
container using a client api.
Accessing external resources (EJBs, JDBC) from JBI is one of the goal of
the JBI spec.
Currently, we do not have specific components to do so, but you should
be able to do that, with a bit of configuration:
spring comes with proxies to access EJB, so that you could leverage them
and use an existing component like
the org.apache.servicemix.components.reflection.ReflectionOutBinding or
the new servicemix-jsr181 component.
We do not have a JDBC related component yet, but you can easily create a
component and hit the database in the usual
way.
I am not sure to understand the last question about MDBs. AFAIK, MDB
are "Message Driven Bean", so if your MDB
is written for JMS, I do not really see how you could use it with
another messaging technology. Could you please
elaborate ?
The publish / subscribe is a ServiceMix specific feature, but you can
use the new WS-Notification Service Engine,
which can be used in a JBI compliant environment.
Quality of Service (best-effort, at-least-once aso) is not really
related to publish/subscribe.
Cheers,
Guillaume Nodet
Charles Souillard wrote:
Sorry...
it would have been better to ask all my questions in only one mail...
I want to know if it is possible to call an MDB Bean from JBI by
another way than sending a JMS message ?
In addition, it is not clear for me if the "publish/subscribe" is
available in JBI...
I think it could be one of the delivering policy (best effort or at
least one) but I am not sure these concept are actually the same...
Thanks
Charles
Simon Čarni wrote:
Hi Charles,
I think you should look at ServiceMixClient.
Cheers,
Simon
2006/1/11, Charles Souillard <[EMAIL PROTECTED]>:
Hi all,
I have a general question about JBI use.
Is it possible to "enter" in the JBI container by another way as by
calling a BC which will transfer the message to the NMR and then call a
SE...
In fact when you have a look at the following picture designed by sun
(http://java.sun.com/developer/technicalArticles/WebServices/soa/fig4.gif
),
we think it is possible for example to enter the NMR through an EJB.
I hope my question is clear...
Thanks,
Regards,
Charles
