JPA-Getting-Started done

jpa-getting-started/pom.xml

@@ -46,7 +46,7 @@
 		<dependency>
 			<groupId>com.h2database</groupId>
 			<artifactId>h2</artifactId>
-			<scope>runtime</scope>
+			<scope>test</scope>
 		</dependency>
 		<dependency>
 			<groupId>org.postgresql</groupId>

jpa-getting-started/src/main/java/me/whiteship/jpasudy/Event.java

@@ -0,0 +1,21 @@
+package me.whiteship.jpasudy;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.Setter;
+
+import javax.persistence.*;
+
+@Entity
+@Getter @Setter @EqualsAndHashCode(of = "id")
+public class Event {
+
+    @Id @GeneratedValue
+    private Long id;
+
+    private String title;
+
+    @OneToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
+    private EventDetail eventDetail;
+
+}

jpa-getting-started/src/main/java/me/whiteship/jpasudy/EventDetail.java

@@ -0,0 +1,20 @@
+package me.whiteship.jpasudy;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.Setter;
+
+import javax.persistence.*;
+
+@Entity
+@Getter @Setter @EqualsAndHashCode(of = "id")
+public class EventDetail {
+
+    @Id
+    @GeneratedValue
+    private Long id;
+
+    @Lob @Basic(fetch = FetchType.LAZY)
+    private String content;
+
+}

jpa-getting-started/src/main/java/me/whiteship/jpasudy/EventDetailRepository.java

@@ -0,0 +1,6 @@
+package me.whiteship.jpasudy;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface EventDetailRepository extends JpaRepository<EventDetail, Long> {
+}

jpa-getting-started/src/main/java/me/whiteship/jpasudy/EventRepository.java

@@ -0,0 +1,6 @@
+package me.whiteship.jpasudy;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface EventRepository extends JpaRepository<Event, Long> {
+}

jpa-getting-started/src/main/resources/application.properties

@@ -0,0 +1,11 @@
+# Database
+spring.datasource.url=jdbc:postgresql://localhost:5432/jpa
+spring.datasource.username=jpa
+spring.datasource.password=jpa
+
+# JPA
+spring.jpa.hibernate.ddl-auto=create-drop
+spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults=false
+spring.jpa.database-platform=org.hibernate.dialect.PostgreSQL9Dialect
+spring.jpa.properties.hibernate.format_sql=true
+spring.jpa.show-sql=true

jpa-getting-started/src/test/java/me/whiteship/jpasudy/EventRepositoryTest.java

@@ -0,0 +1,60 @@
+package me.whiteship.jpasudy;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import javax.persistence.EntityManager;
+import java.util.Optional;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@RunWith(SpringRunner.class)
+@DataJpaTest
+public class EventRepositoryTest {
+
+    @Autowired
+    EventRepository eventRepository;
+
+    @Autowired
+    EntityManager entityManager;
+
+    @Test
+    public void addEvent() {
+        Event event1 = new Event();
+        event1.setTitle("new title1");
+
+        EventDetail eventDetail1 = new EventDetail();
+        eventDetail1.setContent("new content1");
+        event1.setEventDetail(eventDetail1);
+
+        Event event2 = new Event();
+        event2.setTitle("new title");
+
+        EventDetail eventDetail2 = new EventDetail();
+        eventDetail2.setContent("new content");
+        event2.setEventDetail(eventDetail2);
+
+        // 2 Inserts
+        Event savedEvent1 = eventRepository.saveAndFlush(event1);
+        assertThat(savedEvent1.getId()).isNotNull();
+
+        Event savedEvent2 = eventRepository.saveAndFlush(event2);
+        assertThat(savedEvent2.getId()).isNotNull();
+
+        System.out.println("find by id");
+        entityManager.clear();
+
+        Event eventOnly = eventRepository.findById(savedEvent1.getId()).orElseThrow(() -> new RuntimeException());// Select
+
+        System.out.println("get detail content");
+        assertThat(eventOnly.getEventDetail().getContent()).isEqualTo("new content1"); // Select detail
+
+        System.out.println("find all");
+        entityManager.clear();
+        eventRepository.findAll(); // Select
+    }
+
+}