CODEWITHSUNDEEP
c#.netinversion-of-controlcastle-windsorfluent-interface
kmp
kmp

Reputation: 10865

Castle Windsor Fluent Configuration: Is it possible to make a specific lifestyle for a given service without using the concrete implementation?

I have a collection of services that I want to register with Castle Windsor (version 3.0 RC1) using the fluent registration technique.

I want all of them except for a particular one to use the transient lifestyle and that one I want to be a singleton, so I do this:

container.Register(AllTypes
                       .FromThisAssembly()
                       .InSameNamespaceAs<IMyService>()
                       .WithServiceDefaultInterfaces()
                       .ConfigureIf(s => s.Implementation == typeof(MyService),
                                    s => s.LifestyleSingleton(),
                                    s => s.LifestyleTransient()));

The problem I have with that is that I am using typeof(MyService) in the first parameter of ConfigureIf, but I would prefer it if I could use IMyService to determine whether it is a singleton or not (i.e. it does not matter what the implementation is, it should always be a singleton). Is that somehow possible?

Upvotes: 4

Views: 557

Answers (1)

kmp
kmp

Reputation: 10865

With many thanks to oleksii, who suggested looking at this question: How to determine if a type implements a specific generic interface type in the comments on the question, the answer to this is to do the following:

container.Register(AllTypes
                   .FromThisAssembly()
                   .InSameNamespaceAs<IMyService>()
                   .WithServiceDefaultInterfaces()
                   .ConfigureIf(s => typeof(IMyService).IsAssignableFrom(s.Implementation),
                                s => s.LifestyleSingleton(),
                                s => s.LifestyleTransient()));

Upvotes: 4

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