PRA05-EnriqueArranz-InheritanceAndAbstraction

pom.xml

@@ -108,7 +108,15 @@
 					</excludes>
 				</configuration>
 			</plugin>
-		</plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>7</source>
+                    <target>7</target>
+                </configuration>
+            </plugin>
+        </plugins>
 	</build>
 
 </project>

pom.xml~

@@ -0,0 +1,114 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>3.3.4</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>dev.example</groupId>
+	<artifactId>restaurantManager</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>restaurantManager</name>
+	<description>Demo project for Spring Boot with API rest</description>
+	<url/>
+	<licenses>
+		<license/>
+	</licenses>
+	<developers>
+		<developer/>
+	</developers>
+	<scm>
+		<connection/>
+		<developerConnection/>
+		<tag/>
+		<url/>
+	</scm>
+	<properties>
+		<java.version>21</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>me.paulschwarz</groupId>
+			<artifactId>spring-dotenv</artifactId>
+			<version>2.5.4</version>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springdoc</groupId>
+			<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+			<version>2.1.0</version>
+		</dependency>
+		<dependency>
+			<groupId>io.rest-assured</groupId>
+			<artifactId>rest-assured</artifactId>
+			<version>5.5.0</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-thymeleaf</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-devtools</artifactId>
+			<scope>runtime</scope>
+			<optional>true</optional>
+		</dependency>
+		<!--<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<scope>runtime</scope>
+		</dependency>-->
+
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<version>2.3.232</version>
+		</dependency>
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+			<optional>true</optional>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>com.github.javafaker</groupId>
+			<artifactId>javafaker</artifactId>
+			<version>1.0.2</version>
+		</dependency>
+
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+				<configuration>
+					<excludes>
+						<exclude>
+							<groupId>org.projectlombok</groupId>
+							<artifactId>lombok</artifactId>
+						</exclude>
+					</excludes>
+				</configuration>
+			</plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><configuration><source>7</source><target>7</target></configuration></plugin>
+		</plugins>
+	</build>
+
+</project>

src/main/java/dev/example/restaurantManager/model/Dessert.java

@@ -0,0 +1,13 @@
+package dev.example.restaurantManager.model;
+
+import jakarta.persistence.Entity;
+
+@Entity
+public class Dessert extends MenuItem {
+    private String dessertSpecificProperty;
+
+    public Dessert(String id, String name, String description, double price, String dessertSpecificProperty) {
+        super(id, name, description, price);
+        this.dessertSpecificProperty = dessertSpecificProperty;
+    }
+}

src/main/java/dev/example/restaurantManager/model/IMenuItem.java

@@ -0,0 +1,20 @@
+package dev.example.restaurantManager.model;
+
+public interface IMenuItem {
+
+    String getId();
+
+    String getName();
+
+    String getDescription();
+
+    double getPrice();
+
+    void setId(String id);
+
+    void setName(String name);
+
+    void setDescription(String description);
+
+    void setPrice(double price);
+}

src/main/java/dev/example/restaurantManager/model/MainCourse.java

@@ -0,0 +1,14 @@
+package dev.example.restaurantManager.model;
+
+import jakarta.persistence.Entity;
+
+@Entity
+public class MainCourse extends MenuItem {
+
+    private String mainCourseSpecificProperty;
+
+    public MainCourse(String id, String name, String description, double price, String mainCourseSpecificProperty) {
+        super(id, name, description, price);
+        this.mainCourseSpecificProperty = mainCourseSpecificProperty;
+    }
+}

src/main/java/dev/example/restaurantManager/model/MenuItem.java

@@ -11,7 +11,8 @@
 @AllArgsConstructor
 @NoArgsConstructor
 @Entity
-public class MenuItem {
+@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
+public abstract class MenuItem implements IMenuItem {
 
     @Id
     private String id;

src/main/java/dev/example/restaurantManager/utilities/DataLoader.java

@@ -96,14 +96,40 @@ private void createTables() {
 
     // we are going to create 25 menu items
     // and save them in the H2 local database
+//    private void createMenuItemsOld() {
+//        for (int i = 0; i < 25; i++) {
+//            MenuItem menuItem = new MenuItem(
+//                    UUID.randomUUID().toString(),
+//                    faker.food().dish(),
+//                    faker.food().ingredient() + " " + faker.food().ingredient() ,
+//                    faker.number().randomDouble(2, 5, 30)
+//            );
+//            menuItemRepository.save(menuItem);
+//        }
+//    }
+
     private void createMenuItems() {
         for (int i = 0; i < 25; i++) {
-            MenuItem menuItem = new MenuItem(
-                    UUID.randomUUID().toString(),
-                    faker.food().dish(),
-                    faker.food().ingredient() + " " + faker.food().ingredient() ,
-                    faker.number().randomDouble(2, 5, 30)
-            );
+            MenuItem menuItem;
+            if (faker.random().nextBoolean()) {
+                // Create a MainCourse
+                menuItem = new MainCourse(
+                        UUID.randomUUID().toString(),
+                        faker.food().dish(),
+                        faker.food().ingredient() + " " + faker.food().ingredient() ,
+                        faker.number().randomDouble(2, 5, 30),
+                        "Some main course specific property"
+                );
+            } else {
+                // Create a Dessert
+                menuItem = new Dessert(
+                        UUID.randomUUID().toString(),
+                        faker.food().dish(),
+                        faker.food().ingredient() + " " + faker.food().ingredient() ,
+                        faker.number().randomDouble(2, 5, 30),
+                        "Some dessert specific property"
+                );
+            }
             menuItemRepository.save(menuItem);
         }
     }

src/test/java/dev/example/restaurantManager/menuItem/MenuItemTest.java

@@ -0,0 +1,48 @@
+package dev.example.restaurantManager.menuItem;
+
+import dev.example.restaurantManager.model.Dessert;
+import dev.example.restaurantManager.model.IMenuItem;
+import dev.example.restaurantManager.model.MainCourse;
+import org.junit.jupiter.api.Test;
+
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class MenuItemTest {
+    @Test
+    public void testIMenuItemInterface() {
+        IMenuItem mainCourse = new MainCourse(
+                UUID.randomUUID().toString(),
+                "Grilled Chicken",
+                "Grilled chicken breast with roasted vegetables",
+                15.99,
+                "Some main course specific property"
+        );
+        IMenuItem dessert = new Dessert(
+                UUID.randomUUID().toString(),
+                "Chocolate Cake",
+                "Moist chocolate cake with vanilla ice cream",
+                6.99,
+                "Some dessert specific property"
+        );
+        assertEquals(mainCourse.getName(), "Grilled Chicken");
+        assertEquals(mainCourse.getDescription(), "Grilled chicken breast with roasted vegetables");
+        assertEquals(mainCourse.getPrice(), 15.99, 0.01);
+        assertEquals(dessert.getName(), "Chocolate Cake");
+        assertEquals(dessert.getDescription(), "Moist chocolate cake with vanilla ice cream");
+        assertEquals(dessert.getPrice(), 6.99, 0.01);
+        mainCourse.setName("Grilled Steak");
+        mainCourse.setDescription("Grilled steak with roasted potatoes");
+        mainCourse.setPrice(19.99);
+        dessert.setName("Cheesecake");
+        dessert.setDescription("Creamy cheesecake with strawberry sauce");
+        dessert.setPrice(7.99);
+        assertEquals(mainCourse.getName(), "Grilled Steak");
+        assertEquals(mainCourse.getDescription(), "Grilled steak with roasted potatoes");
+        assertEquals(mainCourse.getPrice(), 19.99, 0.01);
+        assertEquals(dessert.getName(), "Cheesecake");
+        assertEquals(dessert.getDescription(), "Creamy cheesecake with strawberry sauce");
+        assertEquals(dessert.getPrice(), 7.99, 0.01);
+    }
+}