Package de.quantummaid.eventmaid.useCases.useCaseAdapter.usecaseCalling

Interface Caller<U>

Type Parameters:

U - the type of the use case

All Known Implementing Classes:

SinglePublicUseCaseMethodCaller

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface Caller<U>

A Caller is responsible to invoke the correct method on the use case instance. The Deserializer is used to deserialize the event into the parameters of the method. The Serializer is used to serialized the use case's return value back into a Map.

Method Summary

Modifier and Type	Method	Description
Object	call(U useCase, Object event, CallingContext callingContext)	Invokes the use case with the data from the event.

Method Detail

call

Object call(U useCase,
            Object event,
            CallingContext callingContext)
     throws Exception

Invokes the use case with the data from the event.

Parameters:

useCase - the use case instance

event - the data for the use case

callingContext - contains objects for serialization or parameter injection

Returns:

the serialized return value

Throws:

Exception - all exceptions declared by the use case method are rethrown