Re: object reference to a service

[Simon Nash]

Blue Diamond wrote:

Thanks Guys!. My requirement is to inject a non-SCA object into a singleton SCA service composite. So, as Simon explained, if a setMyObject(my_non_sca_object) works on an SCA service reference, then that does my job!

It should work as local as the interface containing setMyObject() is
a local interface (i.e., does't have the @Remotable annotation).
This restricts the methods of the interface to being called from
within the same JVM, which is exactly what you need.

  Simon

Thanks & Regards,
Anil

On Thu, Feb 25, 2010 at 11:38 AM, Raymond Feng <enjoyj...@gmail.com <mailto:enjoyj...@gmail.com>> wrote:

    Hi,

Are you trying to get a self reference to this composite-scoped

    service? If so, you can do the following:

@Scope("COMPOSITE")

    @Service(MySevice.class)
    public class MyServiceImpl {

@Context

    protected ComponentContext componentContext;

... ServiceReference<MyService> ref =

    componentContext.createSelfReference(MyService.class);

To get the service reference in another component, you can do: @Reference

    protected ServiceReference<MyService> myService; // It will be
    injected by Tuscany if it's wired to MyService component.

Thanks,

    Raymond

    *From:* Blue Diamond <mailto:gvnan...@gmail.com>
    *Sent:* Wednesday, February 24, 2010 9:49 PM
    *To:* user@tuscany.apache.org <mailto:user@tuscany.apache.org>
    *Subject:* object reference to a service

    Hi,

    I have a @scope(composite) annotated component (service). This is a
    singleton for me (correct me if I am wrong) and no matter how many
    clients call the service operations, its the same service instance
    that's going to handle them.

    SCA API provides a way to obtain service reference to this component
    through say SCANode.getServiceReference().

    But is there a way I can obtain the object reference to this
    instantiated service instance? I understand that SCA has boundaries,

but is there any way by which this can be done?

    SCA creates a component, I want to obtain its object reference (I
    want to inject some other non-SCA created object into it). Is this
    doable?

    Thanks,
    Anil