I second that... that's my main grief about merlin, and the reason I
started work on service registry.
And OSGi "bundle" (that's the term for the deployment unit)
can provide
several services: a "BundleActivator" class inside the bundle
registers
the provided services (there can be several) when the bundle
is loaded.
Registering a service consists in registering an instance of
the service
interface with additionnal properties that describe the service. The
lookup mechanism then allows to select a particular implementation of
the service depending on property values, by using a simple LDAP-like
query language.
Hmm, I like this. This is something that is still missing from Avalon
IMHO: richer service lookup semantics. I've had several instances where
I needed this.
Unico
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