How to have an aggregate field inside a composite injected by subservice instantiate?

[fabiolf <fa...@gmail.com>]

Hello all, 

I'm trying to create an iPOJO composite that is a little bit tricky for me.
So I decided it is time to ask for help. 

In this composite I have an instance of a component described by the XML
above: 

<ipojo>
<component
classname="org.apache.comanche.requestDispatcher.RequestDispatcher">
   <provides/>
   <requires field="rh" aggregate="true"
specification="org.apache.comanche.services.RequestHandler"/>
</component>
</ipojo>

This component has a field that is an aggregate, so I want iPOJO to
instantiate all other components which implements the RequestHandler
interface and inject all of them into this array field. To do so, I created
the composite above: 

<ipojo>
<composite name="comanche.requestHandler">
   <instance
component="org.apache.comanche.requestDispatcher.RequestDispatcher">
      <property name="instance.name" value="RequestDispatcher"/>
   </instance>
   <subservice action="instantiate"
specification="org.apache.comanche.services.RequestHandler" />
</composite>
<instance component="comanche.requestHandler">
   <property name="instance.name" value="RequestHandlerComposite"/>
</instance>  
</ipojo>

Regarding the components that implement the RequestHandler interface, I
currently have two of them: 

<ipojo>
<component
classname="org.apache.comanche.requestHandlers.ImageRequestHandler">
   <provides/>
</component>
<component
classname="org.apache.comanche.requestHandlers.ErrorRequestHandler">
   <provides/>
</component>
</ipojo>

So, I was hoping that when I instantiate the composite, the "subservice
action instantiate" would find all my RequestHandlers and inject them into
my RequestDispatcher rh field. But when I run it, the framework chooses just
one RequestHandler component instead of injecting every one. 

It it possible to achieve what I want? How can I do it? Maybe there is a way
to tell subservice action instantiate to instantiate all components instead
of just the first one? 

Thanks, 
Fabio 




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