I don't know how to make the connection bewteen the chain better. If some processor doesn't have next in chain it will return the message as it is which may be not clear enough for the developer who is using the API I give with ProcessingComposite
This pattern is so alike with Command. What are the differences? In the end both decouple the sender from the receiver and the process between them. 🤔
This close #22
This example may be interesting because the processor is a Composite 😉