Morning folks,
I have a custom provider for creating SoapDispatchHandler objects,
which implement an interface called DispatchHandler.
I want to set up a binding in my module such that any reference to
Provider<DispatchHandler> is injected with an instance of
SoapDispatchHandlerProvider, the provider class which builds and
returns SoapDispatchHandler objects. (Needless to say,
SoapDispatchHandlerProvider implements Provider<DispatchHandler>.)
I originally did it like this:
bind( new TypeLiteral<Provider<DispatchHandler>>(){} )
.to( SoapDispatchHandlerProvider.class );
but this gives me an error:
Binding to core guice framework type is not allowed: Provider.
So to work around it I created an empty interface like so:
public interface DispatchHandlerProvider extends Provider<DispatchHandler> {}
and then made SoapDispatchHandlerProvider implement
DispatchHandlerProvider instead of directly implementing
Provider<DispatchHandler>. This works; I can go:
bind( DispatchHandlerProvider.class ).to( SoapDispatchHandlerProvider.class );
without any problems. But I can't help feeling empty interfaces smell
a bit funny. Is this the right way to approach this scenario?
Thanks!
Andrew.
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