Hi Clement, We are using iPojo Core 1.6.4 (with Annotations). We are also using the Maven plugin version 1.4.2. Maybe this version is too old and there is a compatibility problem. I'll check with an earlier version...
Regards, Olivier -----Message d'origine----- De : Clement Escoffier [mailto:[email protected]] Envoyé : lundi 13 décembre 2010 14:52 À : [email protected] Objet : Re: iPojo inner class instrumentation Hello, On 13.12.10 11:41, "Bigard Olivier" <[email protected]> wrote: >Hello, > > > >We have an interrogation regarding iPojo instrumentation. We read >somewhere in the forum that iPopo can instrument inner classes, but we >are facing a problem when using them in our project. > >Here is our use case: > > > >A first component C1 provides a service with a method "callMe()". >Another component C2 requires this service. > > > >Class C2 > >{ > > @Requires > > Private C1 c1; > > > > public boolean authenticate() > > { > > c1.callMe(); > > return true; > > } > >} > > > >A third component C3 requires the component C2. This component C2 is >used inside an inner class MyFilter. > > > >Class C3 > >{ > > @Requires > > private C2 c2; > > > > @Override > > public MyFilter getFilter() > > { > > return new MyFilter() > > { > > > > @Override > > public boolean authenticate() > > { > > return c2.authenticate(); > > } > > }; > > } > >} > > > >At last, a component C4 listens for arrival and removal of C3 component >instances with @Bind/@Unbind methods. > > > >Class C4 > >{ > > @Requires(id = "apis", optional = true) > > C3[] apis; > > > > @Bind(id = "apis") > > public void addApi(ServiceReference ref) > > { > > C3 api = (C3) bundleCtxt.getService(ref); > > filter = api.getFilter(); > > filter.authenticate(); > > } > >} > > > >Everything works perfectly the first time all the components are >started. But when we stop and restart the C1 and C2 instances, a >NullPointerException occurs when calling the method authenticate() of >the C2 component, because c1 is null. All the iPojo are present and >valid after the restart, but it seems c1 reference is not updated in c2. > > > >We manage to make it work by modifiying a little bit the getFilter() >implementation in the C3 component: > > > >Class C3 > >{ > > public MyFilter getFilter() > > { > > return new MyFilterImpl(c2); > > } > >} > > > >where MyFilterImpl is an implementation of the MyFilter interface. > > > >Does it trouble iPojo instrumentation when we instantiate inner classes >like we do or are we misusing iPojo in another way ? Normally this should work, but I will test it because it looks pretty strange. Which version of iPOJO and of the manipulator are you using? Regards, Clement > > > >Thanks > >Olivier > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
