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https://issues.apache.org/jira/browse/FELIX-303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12510575
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Marcel Offermans commented on FELIX-303:
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Thanks Dennis, your implementation (an implementation with a proxy) is indeed
one of the cases I want to cover with composition support (it is a composition,
of implementation and proxy). Ultimately I want to support compositions that
consist of N parts.
With Object[] parameters I mean that you might want to explicitly specify a
list of objects to inject a certain dependency into. The array could be a
subset of the whole composition (or just the whole composition, since it won't
harm to try to inject a dependency into an object that does not contain it).
> Support for compositions
> ------------------------
>
> Key: FELIX-303
> URL: https://issues.apache.org/jira/browse/FELIX-303
> Project: Felix
> Issue Type: New Feature
> Components: Dependency Manager
> Affects Versions: 0.8.0
> Reporter: Marcel Offermans
> Assignee: Marcel Offermans
> Fix For: 1.0.0
>
> Attachments: proxy.patch.txt
>
>
> When creating service implementations out of POJO's, the more complex
> implementations will often be composed out of several POJO's, using
> composition instead of inheritance. This means instead of one implementation,
> you have N implementations. The consequences of this are that for both the
> callbacks and the injected services, you want to be able to explicitly
> specify one of more instances, instead of assuming there's only one. The API
> needs to be extended to support this (basically adding a parameter of type
> Object[] for some of the methods).
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