BotCommands/io.github.freya022.botcommands.api.parameters/ParameterResolverFactory

ParameterResolverFactory

@InterfacedService(acceptMultiple = true)

abstract class ParameterResolverFactory<out T : IParameterResolver<T>>(val resolverType: KClass<out T>)(source)

Your implementation needs to be annotated with @ResolverFactory.

How it works

A factory determines if a given parameter is supported, if so, a parameter resolver will be created.

If multiple factories return true in isResolvable for a given type, the factory with the best priority is taken, if two with the same top priority exists, an exception is thrown.

Use cases

This is particularly useful if your parameter's type has generics, which you may read in ParameterWrapper.type, or if you need to read an annotation on the parameter to adjust the resolver's behavior, for example.

In case you want to read generics, you can read them off the KType in ParameterWrapper, but you can only do that with Kotlin.

In case you want to read the annotations, you can use the methods supplied by ParameterWrapper.