Moved all business logic into TransferService

[demos/kafka/demos-kafka-payment-system-transfer] / src / main / java / de / juplo / kafka / payment / transfer / ports / CreateTransferUseCase.java

package de.juplo.kafka.payment.transfer.ports;

import de.juplo.kafka.payment.transfer.domain.Transfer;


public interface CreateTransferUseCase
{
  void create(Long id, Long payer, Long payee, Integer amount);
}