[equinox-dev] Conceptual problem with OSGi

["Alexander Shutyaev" <shutyaev@xxxxxxxxx>]

I have come upon a conceptual problem with OSGi.

First,
I'll tell what I need. I need a factory that will create some
instances. Each instance has it's own configuration and all instances
provide a service.

I've read about the EMailFetcher example in
the Configuration Admin Specification and it turned out to be just my
case. So I was happy and thought that I should use
ManagedServiceFactory and all the things associated with it.

Later,
however I've read the Declarative Services Specification. And that is
where it began. I can't feel the difference between the
ManagedServiceFactory (from Configuration Admin) and ComponentFactory
(from Declarative Services).

If anyone could tell me the
difference between them (for example why can't I use ComponentFactory
in the EMailFetcher example, or can I?), I would be very-very thankful.

Thanks in advance...