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From Christian Schneider <ch...@die-schneider.net>
Subject Re: Question about Blueprint Service and Bundle loading
Date Fri, 20 Apr 2012 16:17:53 GMT
If you reference the service with a filter then OSGi will inject the 
correct impl object. You will not even need to have a dynamic import as 
the impl is installed by the bundle1.

So this should simply work. What exception do you get?

Christian

Am 20.04.2012 17:55, schrieb Charles Moulliard:
> Bundle 1 and Bundle 2 contain a different implementation of the 
> interface which is exposed as OSGI service
>
> Bundle 1
>
> <bean id="service" class="com.mycompany.poc.service.impl.FeedbackTeamWS"/>
>
> <service ref="service" interface="com.mycompany.poc.service.Feedback">
> <service-properties>
> <entry key="version" value="1"/>
> </service-properties>
> </service>
>
> Bundle 2
>
> <bean id="service" 
> class="com. mycompany.poc.service.impl.FeedbackTeamDB"/>
>
> <service ref="service" interface="com.mycompany.poc.service.Feedback">
> <service-properties>
> <entry key="version" value="2"/>
> </service-properties>
> </service>
>
> So the bundle C do an OSGI lookup to retrieve using as key the 
> interface name "com.mycompany.poc.service.Feedback", the class 
> implemented in bundle 1 or bundle 2.
>
> What would be great is that the bundle C when the following bean is 
> instantiated loads the class from the bundle 1 as the filter of the 
> reference to be found corresponds to it
>
> <property name="feedbackService">
> <reference interface="com.mycompany.poc.service.Feedback" 
> filter="(version=1)"/>
> </property>
>
> Intrinsically we know that the class implementing this interface 
> belongs to bundle 1 as filter = 1 = OSGI service exposed by bundle 1 = 
> class = com.mycompany.poc.service.impl.FeedbackTeamWS
>

-- 
Christian Schneider
http://www.liquid-reality.de

Open Source Architect
Talend Application Integration Division http://www.talend.com


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