├── .gitignore
├── README.md
├── pom.xml
└── src
    ├── main
        ├── java
        │   └── com
        │   │   └── baeldung
        │   │       └── library
        │   │           ├── LibraryApplication.java
        │   │           ├── domain
        │   │               ├── Author.java
        │   │               └── Book.java
        │   │           └── repo
        │   │               ├── AuthorRepository.java
        │   │               └── BookRepository.java
        └── resources
        │   └── application.properties
    └── test
        └── java
            └── com
                └── baeldung
                    └── library
                        └── LibraryApplicationTests.java


/.gitignore:
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 1 | */bin/*
 2 | 
 3 | *.class
 4 | 
 5 | # Package Files #
 6 | *.war
 7 | *.ear
 8 | 
 9 | 
10 | # Eclipse
11 | .settings/
12 | *.project
13 | *.classpath
14 | .prefs
15 | *.prefs
16 | .metadata/
17 | 
18 | # Intellij
19 | .idea/
20 | *.iml
21 | *.iws
22 | 
23 | # Mac
24 | .DS_Store
25 | 
26 | # Maven
27 | log/
28 | target/
29 | 
30 | *.springBeans
31 | 


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/README.md:
--------------------------------------------------------------------------------
1 | # Library Example App
2 | 
3 | A very simple Spring Boot 2 - Library example app: https://www.youtube.com/watch?v=-f-7l8X716k
4 | 


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/pom.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <project xmlns="http://maven.apache.org/POM/4.0.0"
 3 | 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4 | 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 5 | 	<modelVersion>4.0.0</modelVersion>
 6 | 
 7 | 	<groupId>com.baeldung</groupId>
 8 | 	<artifactId>library-reference</artifactId>
 9 | 	<version>0.0.1-SNAPSHOT</version>
10 | 	<packaging>jar</packaging>
11 | 
12 | 	<name>library</name>
13 | 	<description>Demo project for Spring Boot</description>
14 | 
15 | 	<parent>
16 | 		<groupId>org.springframework.boot</groupId>
17 | 		<artifactId>spring-boot-starter-parent</artifactId>
18 | 		<version>2.0.1.RELEASE</version>
19 | 		<relativePath /> <!-- lookup parent from repository -->
20 | 	</parent>
21 | 
22 | 	<properties>
23 | 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
24 | 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
25 | 		<java.version>1.8</java.version>
26 | 	</properties>
27 | 
28 | 	<dependencies>
29 | 		<dependency>
30 | 			<groupId>org.springframework.boot</groupId>
31 | 			<artifactId>spring-boot-starter-actuator</artifactId>
32 | 		</dependency>
33 | 		<dependency>
34 | 			<groupId>org.springframework.boot</groupId>
35 | 			<artifactId>spring-boot-starter-data-jpa</artifactId>
36 | 		</dependency>
37 | 		<dependency>
38 | 			<groupId>org.springframework.boot</groupId>
39 | 			<artifactId>spring-boot-starter-data-rest</artifactId>
40 | 		</dependency>
41 | 		<dependency>
42 | 			<groupId>org.springframework.boot</groupId>
43 | 			<artifactId>spring-boot-starter-web</artifactId>
44 | 		</dependency>
45 | 
46 | 		<dependency>
47 | 			<groupId>org.springframework.boot</groupId>
48 | 			<artifactId>spring-boot-devtools</artifactId>
49 | 			<scope>runtime</scope>
50 | 		</dependency>
51 | 		<dependency>
52 | 			<groupId>com.h2database</groupId>
53 | 			<artifactId>h2</artifactId>
54 | 			<scope>runtime</scope>
55 | 		</dependency>
56 | 		<dependency>
57 | 			<groupId>org.projectlombok</groupId>
58 | 			<artifactId>lombok</artifactId>
59 | 			<optional>true</optional>
60 | 		</dependency>
61 | 		<dependency>
62 | 			<groupId>com.google.guava</groupId>
63 | 			<artifactId>guava</artifactId>
64 | 			<version>25.0-jre</version>
65 | 		</dependency>
66 | 
67 | 		<dependency>
68 | 			<groupId>org.springframework.boot</groupId>
69 | 			<artifactId>spring-boot-starter-test</artifactId>
70 | 			<scope>test</scope>
71 | 			<exclusions>
72 | 				<exclusion>
73 | 					<groupId>org.assertj</groupId>
74 | 					<artifactId>assertj-core</artifactId>
75 | 				</exclusion>
76 | 			</exclusions>
77 | 		</dependency>
78 | 	</dependencies>
79 | 
80 | 	<build>
81 | 		<plugins>
82 | 			<plugin>
83 | 				<groupId>org.springframework.boot</groupId>
84 | 				<artifactId>spring-boot-maven-plugin</artifactId>
85 | 			</plugin>
86 | 		</plugins>
87 | 	</build>
88 | 
89 | 
90 | </project>
91 | 


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/src/main/java/com/baeldung/library/LibraryApplication.java:
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 1 | package com.baeldung.library;
 2 | 
 3 | import org.springframework.beans.factory.annotation.Autowired;
 4 | import org.springframework.boot.ApplicationArguments;
 5 | import org.springframework.boot.ApplicationRunner;
 6 | import org.springframework.boot.SpringApplication;
 7 | import org.springframework.boot.autoconfigure.SpringBootApplication;
 8 | import org.springframework.stereotype.Component;
 9 | 
10 | import com.baeldung.library.domain.Author;
11 | import com.baeldung.library.domain.Book;
12 | import com.baeldung.library.repo.AuthorRepository;
13 | import com.google.common.collect.Lists;
14 | 
15 | @SpringBootApplication
16 | public class LibraryApplication {
17 | 
18 |     @Autowired
19 |     private AuthorRepository authorRepo;
20 | 
21 |     @Component
22 |     class DataSetup implements ApplicationRunner {
23 |         @Override
24 |         public void run(ApplicationArguments args) throws Exception {
25 |             final Book goneWithTheWindBook = Book.builder().title("Gone with the Wind").isbn("9787806571491").build();
26 |             final Author goneWithTheWindAuthor = Author.builder().name("Margaret Mitchell").books(Lists.newArrayList(goneWithTheWindBook)).build();
27 | 
28 |             authorRepo.save(goneWithTheWindAuthor);
29 |         }
30 |     }
31 | 
32 |     public static void main(String[] args) {
33 |         SpringApplication.run(LibraryApplication.class, args);
34 |     }
35 | 
36 | }
37 | 


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/src/main/java/com/baeldung/library/domain/Author.java:
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 1 | package com.baeldung.library.domain;
 2 | 
 3 | import java.util.List;
 4 | 
 5 | import javax.persistence.CascadeType;
 6 | import javax.persistence.Entity;
 7 | import javax.persistence.GeneratedValue;
 8 | import javax.persistence.Id;
 9 | import javax.persistence.OneToMany;
10 | import javax.validation.constraints.NotNull;
11 | 
12 | import lombok.AllArgsConstructor;
13 | import lombok.Builder;
14 | import lombok.Data;
15 | import lombok.NoArgsConstructor;
16 | 
17 | @Builder
18 | @NoArgsConstructor
19 | @AllArgsConstructor
20 | @Data
21 | @Entity
22 | public class Author {
23 | 
24 |     @Id
25 |     @GeneratedValue
26 |     private long id;
27 | 
28 |     @NotNull
29 |     private String name;
30 | 
31 |     @OneToMany(cascade = CascadeType.ALL)
32 |     private List<Book> books;
33 | 
34 | }
35 | 


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/src/main/java/com/baeldung/library/domain/Book.java:
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 1 | package com.baeldung.library.domain;
 2 | 
 3 | import javax.persistence.Entity;
 4 | import javax.persistence.GeneratedValue;
 5 | import javax.persistence.Id;
 6 | import javax.validation.constraints.NotNull;
 7 | 
 8 | import lombok.AllArgsConstructor;
 9 | import lombok.Builder;
10 | import lombok.Data;
11 | import lombok.NoArgsConstructor;
12 | 
13 | @Builder
14 | @NoArgsConstructor
15 | @AllArgsConstructor
16 | @Data
17 | @Entity
18 | public class Book {
19 | 
20 |     @Id
21 |     @GeneratedValue
22 |     private long id;
23 | 
24 |     @NotNull
25 |     private String isbn;
26 | 
27 |     @NotNull
28 |     private String title;
29 | 
30 | }
31 | 


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/src/main/java/com/baeldung/library/repo/AuthorRepository.java:
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 1 | package com.baeldung.library.repo;
 2 | 
 3 | import org.springframework.data.repository.PagingAndSortingRepository;
 4 | import org.springframework.data.rest.core.annotation.RepositoryRestResource;
 5 | 
 6 | import com.baeldung.library.domain.Author;
 7 | 
 8 | @RepositoryRestResource(collectionResourceRel = "authors", path = "authors")
 9 | public interface AuthorRepository extends PagingAndSortingRepository<Author, Long> {
10 | 	//
11 | }


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/src/main/java/com/baeldung/library/repo/BookRepository.java:
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 1 | package com.baeldung.library.repo;
 2 | 
 3 | import org.springframework.data.repository.PagingAndSortingRepository;
 4 | import org.springframework.data.rest.core.annotation.RepositoryRestResource;
 5 | 
 6 | import com.baeldung.library.domain.Book;
 7 | 
 8 | @RepositoryRestResource(collectionResourceRel = "books", path = "books")
 9 | public interface BookRepository extends PagingAndSortingRepository<Book, Long> {
10 | 	//
11 | }


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/src/main/resources/application.properties:
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1 | logging.level.org.springframework.data.rest.webmvc=WARN
2 | 


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/src/test/java/com/baeldung/library/LibraryApplicationTests.java:
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 1 | package com.baeldung.library;
 2 | 
 3 | import static org.hamcrest.CoreMatchers.not;
 4 | import static org.hamcrest.Matchers.emptyIterable;
 5 | import static org.junit.Assert.assertThat;
 6 | 
 7 | import org.junit.Test;
 8 | import org.junit.runner.RunWith;
 9 | import org.springframework.beans.factory.annotation.Autowired;
10 | import org.springframework.boot.test.context.SpringBootTest;
11 | import org.springframework.test.context.junit4.SpringRunner;
12 | 
13 | import com.baeldung.library.repo.BookRepository;
14 | 
15 | @RunWith(SpringRunner.class)
16 | @SpringBootTest
17 | public class LibraryApplicationTests {
18 | 
19 |     @Autowired
20 |     private BookRepository bookRepo;
21 | 
22 |     @Test
23 |     public void contextLoads() {
24 |         //
25 |     }
26 | 
27 |     @Test
28 |     public void persistenceWorks() {
29 |         bookRepo.findAll();
30 |     }
31 | 
32 |     @Test
33 |     public void dataExists() {
34 |         assertThat(bookRepo.findAll(), not(emptyIterable()));
35 |     }
36 | 
37 | }
38 | 


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