Re: [hibernate-dev] [HSearch] ServiceManager and services
On Mon 2012-10-15 18:19, Hardy Ferentschik wrote:
> Basically for you a Service must allow for multiple
implementations
> and a ServiceManager must offer a way to switch between various
> implementations.
I orientate myself in this case at the ServiceLoader docs (especially since we are using
this mechanism as well) which says:
"A service is a well-known set of interfaces and (usually abstract) classes. A
service provider is a specific implementation of a service."
What I am saying is that by calling it a ServiceManager and by using the ServiceLoader
API I have a certain expectation on how things
will work. I would have expected that each of the services has its own service file and
that we determine the service to use by using the
Service Loader API + some config code.
I don't think we use the ServiceLoader API nor implementation. though we
do reuse the pattern of finding services by a the META-INF service.
What is a bit unfortunate is that what the JDK ServiceLoader calls a
service, we call it a ServiceProvider and what they call a service
provider we call it a given implementation of ServiceProvider offering
the lifecycle management of a specific service.
In other words, the service we offer is the service provider lifecycle.
We hopped one level.