Dynamische Auflösung von Workflow-Strategien über Map-Injection

@Service
public class PaymentRoutingService {
    private final Map<String, PaymentProcessor> processors;
 
    public PaymentRoutingService(Map<String, PaymentProcessor> processors) {
        this.processors = processors;
    }
 
    public void executePayment(String provider, BigDecimal amount) {
        PaymentProcessor processor = processors.get(provider.toLowerCase() + "Processor");
        if (processor == null) {
            throw new IllegalArgumentException("Unknown provider: " + provider);
        }
        processor.process(amount);
    }
}