#30 jpa basic: relation mapping

hello-jpa/src/main/java/com/hello/jpa/relationmapping/ex03/JpaMain.java

@@ -0,0 +1,28 @@
+package com.hello.jpa.relationmapping.ex03;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.EntityTransaction;
+import javax.persistence.Persistence;
+
+public class JpaMain {
+
+    public static void main(String[] args) {
+        EntityManagerFactory emf = Persistence.createEntityManagerFactory("hello");
+
+        EntityManager em = emf.createEntityManager();
+
+        EntityTransaction tx = em.getTransaction();
+        tx.begin();
+
+        try {
+            tx.commit();
+        } catch (Exception e) {
+            tx.rollback();
+        } finally {
+            em.close();
+        }
+
+        emf.close();
+    }
+}

hello-jpa/src/main/java/com/hello/jpa/relationmapping/ex03/domain/Category.java

@@ -0,0 +1,29 @@
+package com.hello.jpa.relationmapping.ex03.domain;
+
+import javax.persistence.*;
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+public class Category {
+
+    @Id @GeneratedValue
+    private Long id;
+
+    private String name;
+
+    @ManyToOne
+    @JoinColumn(name = "PARENT_ID")
+    private Category parent;
+
+    @OneToMany(mappedBy = "parent")
+    private List<Category> child = new ArrayList<>();
+
+    @ManyToMany
+    @JoinTable(
+            name = "CATEGORY_ITEM",
+            joinColumns = @JoinColumn(name = "CATEGORY_ID"),
+            inverseJoinColumns = @JoinColumn(name = "ITEM_ID")
+    )
+    private List<Item> items = new ArrayList<>();
+}

hello-jpa/src/main/java/com/hello/jpa/relationmapping/ex03/domain/Delivery.java

@@ -0,0 +1,22 @@
+package com.hello.jpa.relationmapping.ex03.domain;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.OneToOne;
+
+@Entity
+public class Delivery {
+
+    @Id @GeneratedValue
+    private Long id;
+
+    private String city;
+    private String street;
+    private String zipcode;
+
+    private DeliveryStatus status;
+
+    @OneToOne(mappedBy = "delivery")
+    private Order order;
+}

hello-jpa/src/main/java/com/hello/jpa/relationmapping/ex03/domain/DeliveryStatus.java

@@ -0,0 +1,4 @@
+package com.hello.jpa.relationmapping.ex03.domain;
+
+public enum DeliveryStatus {
+}

hello-jpa/src/main/java/com/hello/jpa/relationmapping/ex03/domain/Item.java

@@ -0,0 +1,52 @@
+package com.hello.jpa.relationmapping.ex03.domain;
+
+import javax.persistence.*;
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+public class Item {
+
+    @Id @GeneratedValue
+    @Column(name = "item_id")
+    private Long id;
+
+    private String name;
+    private int price;
+    private int stockQuantity;
+
+    @ManyToMany(mappedBy = "items")
+    private List<Category> categories = new ArrayList<>();
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getPrice() {
+        return price;
+    }
+
+    public void setPrice(int price) {
+        this.price = price;
+    }
+
+    public int getStockQuantity() {
+        return stockQuantity;
+    }
+
+    public void setStockQuantity(int stockQuantity) {
+        this.stockQuantity = stockQuantity;
+    }
+}

hello-jpa/src/main/java/com/hello/jpa/relationmapping/ex03/domain/Member.java

@@ -0,0 +1,69 @@
+package com.hello.jpa.relationmapping.ex03.domain;
+
+import javax.persistence.*;
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+public class Member {
+
+    @Id @GeneratedValue
+    @Column(name = "member_id")
+    private Long id;
+
+    private String name;
+    private String city;
+    private String street;
+    private String zipcode;
+
+    @OneToMany(mappedBy = "member")
+    private List<Order> orders = new ArrayList<>();
+
+    public List<Order> getOrders() {
+        return orders;
+    }
+
+    public void setOrders(List<Order> orders) {
+        this.orders = orders;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getCity() {
+        return city;
+    }
+
+    public void setCity(String city) {
+        this.city = city;
+    }
+
+    public String getStreet() {
+        return street;
+    }
+
+    public void setStreet(String street) {
+        this.street = street;
+    }
+
+    public String getZipcode() {
+        return zipcode;
+    }
+
+    public void setZipcode(String zipcode) {
+        this.zipcode = zipcode;
+    }
+}

hello-jpa/src/main/java/com/hello/jpa/relationmapping/ex03/domain/Order.java

@@ -0,0 +1,69 @@
+package com.hello.jpa.relationmapping.ex03.domain;
+
+import javax.persistence.*;
+import java.time.LocalDateTime;
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+@Table(name = "orders")
+public class Order {
+
+    @Id @GeneratedValue
+    @Column(name = "order_id")
+    private Long id;
+
+    @ManyToOne
+    @JoinColumn(name = "member_id")
+    private Member member;
+
+    @OneToOne
+    @JoinColumn(name = "DELIVERY_ID")
+    private Delivery delivery;
+
+    private LocalDateTime orderDate;
+
+    @Enumerated(EnumType.STRING)
+    private OrderStatus status;
+
+    @OneToMany(mappedBy = "order")
+    private List<OrderItem> orderItems = new ArrayList<>();
+
+    public void addOrderItem(OrderItem orderItem) {
+        orderItems.add(orderItem);
+        orderItem.setOrder(this);
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Member getMember() {
+        return member;
+    }
+
+    public void setMember(Member member) {
+        this.member = member;
+    }
+
+    public LocalDateTime getOrderDate() {
+        return orderDate;
+    }
+
+    public void setOrderDate(LocalDateTime orderDate) {
+        this.orderDate = orderDate;
+    }
+
+    public OrderStatus getStatus() {
+        return status;
+    }
+
+    public void setStatus(OrderStatus status) {
+        this.status = status;
+    }
+
+}

hello-jpa/src/main/java/com/hello/jpa/relationmapping/ex03/domain/OrderItem.java

@@ -0,0 +1,62 @@
+package com.hello.jpa.relationmapping.ex03.domain;
+
+import javax.persistence.*;
+
+@Entity
+public class OrderItem {
+
+    @Id @GeneratedValue
+    @Column(name = "order_item_id")
+    private Long id;
+
+    @ManyToOne
+    @JoinColumn(name = "order_id")
+    private Order order;
+
+    @ManyToOne
+    @JoinColumn(name = "item_id")
+    private Item item;
+
+    private int orderPrice;
+    private int count;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Order getOrder() {
+        return order;
+    }
+
+    public void setOrder(Order order) {
+        this.order = order;
+    }
+
+    public Item getItem() {
+        return item;
+    }
+
+    public void setItem(Item item) {
+        this.item = item;
+    }
+
+    public int getOrderPrice() {
+        return orderPrice;
+    }
+
+    public void setOrderPrice(int orderPrice) {
+        this.orderPrice = orderPrice;
+    }
+
+    public int getCount() {
+        return count;
+    }
+
+    public void setCount(int count) {
+        this.count = count;
+    }
+}

hello-jpa/src/main/java/com/hello/jpa/relationmapping/ex03/domain/OrderStatus.java

@@ -0,0 +1,6 @@
+package com.hello.jpa.relationmapping.ex03.domain;
+
+public enum OrderStatus {
+
+    ORDER, CANCEL
+}

hello-jpa/src/main/resources/META-INF/persistence.xml

@@ -15,9 +15,15 @@
 <!--        <class>com.hello.jpa.relationmapping.ex01.domain.Member</class>-->
 <!--        <class>com.hello.jpa.relationmapping.ex01.domain.Order</class>-->
 <!--        <class>com.hello.jpa.relationmapping.ex01.domain.OrderItem</class>-->
-        <class>com.hello.jpa.relationmapping.ex02.domain.Member</class>
+<!--        <class>com.hello.jpa.relationmapping.ex02.domain.Member</class>-->
-        <class>com.hello.jpa.relationmapping.ex02.domain.Team</class>
+<!--        <class>com.hello.jpa.relationmapping.ex02.domain.Team</class>-->
-        <class>com.hello.jpa.relationmapping.ex02.domain.Locker</class>
+<!--        <class>com.hello.jpa.relationmapping.ex02.domain.Locker</class>-->
+        <class>com.hello.jpa.relationmapping.ex03.domain.Category</class>
+        <class>com.hello.jpa.relationmapping.ex03.domain.Delivery</class>
+        <class>com.hello.jpa.relationmapping.ex03.domain.Item</class>
+        <class>com.hello.jpa.relationmapping.ex03.domain.Member</class>
+        <class>com.hello.jpa.relationmapping.ex03.domain.Order</class>
+        <class>com.hello.jpa.relationmapping.ex03.domain.OrderItem</class>
 
         <properties>
             <!-- 필수 속성 -->