ValidationService.java

@Service
@AllArgsConstructor(onConstructor = @__(@Autowired))
public class ValidationService {
    private ValidatorFactory factory;

    public void execute(boolean isExclusive, EventForm form, List<String> errors) {
        List<BaseValidator> validators = factory.get(isExclusive);
        validators.forEach(validator -> {
            validator.validate(form, errors);
        });
    }
}