java-tutorials/spring-boot-rest/src/main/java/com/baeldung/services/OrderService.java

package com.baeldung.services;

import java.util.List;

import com.baeldung.persistence.model.Order;

public interface OrderService {

    List<Order> getAllOrdersForCustomer(String customerId);

    Order getOrderByIdForCustomer(String customerId, String orderId);

}