#30 jpa basic: value type collection

hello-jpa/src/main/java/com/hello/jpa/valuetype/ex02/Address.java

@@ -0,0 +1,58 @@
+package com.hello.jpa.valuetype.ex02;
+
+import javax.persistence.Embeddable;
+import java.util.Objects;
+
+@Embeddable
+public class Address {
+
+    private String city;
+    private String street;
+    private String zipcode;
+
+    public Address() {
+    }
+
+    public Address(String city, String street, String zipcode) {
+        this.city = city;
+        this.street = street;
+        this.zipcode = zipcode;
+    }
+
+    public String getCity() {
+        return city;
+    }
+
+    private void setCity(String city) {
+        this.city = city;
+    }
+
+    public String getStreet() {
+        return street;
+    }
+
+    private void setStreet(String address) {
+        this.street = address;
+    }
+
+    public String getZipcode() {
+        return zipcode;
+    }
+
+    private void setZipcode(String zipcode) {
+        this.zipcode = zipcode;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (!(o instanceof Address)) return false;
+        Address address = (Address) o;
+        return Objects.equals(city, address.city) && Objects.equals(street, address.street) && Objects.equals(zipcode, address.zipcode);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(city, street, zipcode);
+    }
+}

hello-jpa/src/main/java/com/hello/jpa/valuetype/ex02/JpaMain.java

@@ -0,0 +1,60 @@
+package com.hello.jpa.valuetype.ex02;
+
+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 {
+
+            Member member = new Member();
+            member.setName("name");
+            member.setHomeAddress(new Address("city", "address", "zipcode"));
+
+            member.getFavoriteFoods().add("치킨");
+            member.getFavoriteFoods().add("피자");
+            member.getFavoriteFoods().add("족발");
+
+            member.getAddressHistory().add(new Address("old", "old", "old"));
+            member.getAddressHistory().add(new Address("old2", "old2", "old2"));
+
+            em.persist(member);
+
+            em.flush();
+            em.clear();
+
+            System.out.println("============== START ==============");
+            Member findMember = em.find(Member.class, member.getId());
+
+            findMember.getAddressHistory().forEach(System.out::println);
+            findMember.getFavoriteFoods().forEach(System.out::println);
+
+            findMember.setHomeAddress(new Address("new city", "new address", "new zipcode"));
+
+            // 치킨 -> 한식
+            findMember.getFavoriteFoods().remove("치킨");
+            findMember.getFavoriteFoods().add("한식");
+
+            findMember.getAddressHistory().remove(new Address("old", "old", "old"));
+            findMember.getAddressHistory().add(new Address("old3", "old3", "old3"));
+
+            tx.commit();
+        } catch (Exception e) {
+            tx.rollback();
+        } finally {
+            em.close();
+        }
+
+        emf.close();
+    }
+}

hello-jpa/src/main/java/com/hello/jpa/valuetype/ex02/Member.java

@@ -0,0 +1,70 @@
+package com.hello.jpa.valuetype.ex02;
+
+import javax.persistence.*;
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+@Entity
+public class Member {
+
+    @Id @GeneratedValue
+    @Column(name = "MEMBER_ID")
+    private Long id;
+
+    @Column(name = "USERNAME")
+    private String name;
+
+    @Embedded
+    private Address homeAddress;
+
+    @ElementCollection
+    @CollectionTable(name = "FAVORITE_FOOD", joinColumns = @JoinColumn(name = "MEMBER_ID"))
+    @Column(name = "FOOD_NAME")
+    private Set<String> favoriteFoods = new HashSet<>();
+
+    public Set<String> getFavoriteFoods() {
+        return favoriteFoods;
+    }
+
+    public void setFavoriteFoods(Set<String> favoriteFoods) {
+        this.favoriteFoods = favoriteFoods;
+    }
+
+    public List<Address> getAddressHistory() {
+        return addressHistory;
+    }
+
+    public void setAddressHistory(List<Address> addressHistory) {
+        this.addressHistory = addressHistory;
+    }
+
+    @ElementCollection
+    @CollectionTable(name = "ADDRESS", joinColumns = @JoinColumn(name = "MEMBER_ID"))
+    private List<Address> addressHistory = 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 Address getHomeAddress() {
+        return homeAddress;
+    }
+
+    public void setHomeAddress(Address homeAddress) {
+        this.homeAddress = homeAddress;
+    }
+}

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

@@ -35,7 +35,8 @@
 <!--        <class>com.hello.jpa.proxy.ex01.Parent</class>-->
 <!--        <class>com.hello.jpa.proxy.ex01.Child</class>-->
 <!--        <class>com.hello.jpa.valuetype.ex00.Member</class>-->
-        <class>com.hello.jpa.valuetype.ex01.Member</class>
+<!--        <class>com.hello.jpa.valuetype.ex01.Member</class>-->
+        <class>com.hello.jpa.valuetype.ex02.Member</class>
 
         <properties>
             <!-- 필수 속성 -->