feat[#1] : order domain 구현 (#2)

src/main/java/com/noriton/team9/domain/Order.java

@@ -0,0 +1,46 @@
+package com.noriton.team9.domain;
+
+import jakarta.persistence.*;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+import java.time.LocalDateTime;
+
+@Entity
+@Getter @Setter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Order {
+
+    @Id @GeneratedValue
+    @Column(name = "order_id")
+    private Long id;
+
+    private int count;
+
+    private String address;
+
+    private String size;
+
+    @OneToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "item_id")
+    private Item item;
+    private LocalDateTime orderDate;
+
+    private int totalPrice;
+
+    //==생성 메서드==//
+    public static Order createOrder(int count, String address, String size, Item item){
+        Order order = new Order();
+        order.setCount(count);
+        order.setAddress(address);
+        order.setSize(size);
+        order.setItem(item);
+        order.setOrderDate(LocalDateTime.now());
+        order.setTotalPrice(count * item.getPrice());
+        return order;
+    }
+
+
+}