add liquibase config

Author: tsiupa-coder

pom.xml

@@ -95,6 +95,10 @@
       <scope>"runtime</scope>
     </dependency>
 
+    <dependency>
+      <groupId>io.micronaut.liquibase</groupId>
+      <artifactId>micronaut-liquibase</artifactId>
+    </dependency>
   </dependencies>
 
   <build>
@@ -109,7 +113,7 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <configuration>
           <!-- Uncomment to enable incremental compilation -->
-          <!-- <useIncrementalCompilation>false</useIncrementalCompilation> -->
+<!--           <useIncrementalCompilation>false</useIncrementalCompilation>-->
 
           <annotationProcessorPaths combine.children="append">
             <path>

src/main/java/com/example/Pen.java renamed to src/main/java/com/example/Book.java

@@ -3,19 +3,20 @@
 import javax.persistence.*;
 
 @Entity
-public class Pen {
+@Table(name = "books")
+public class Book {
     @Id
-    @GeneratedValue(strategy = GenerationType.SEQUENCE)
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
     private String title;
     private int pages;
 
-    public Pen(String title, int pages) {
+    public Book(String title, int pages) {
         this.title = title;
         this.pages = pages;
     }
 
-    public Pen() {
+    public Book() {
     }
 
     public Long getId() {

src/main/java/com/example/BookController.java

@@ -18,7 +18,7 @@ public void init() {
     }
 
     @Get("/books")
-    public List<Pen> books() {
+    public List<Book> books() {
         return service.findAll();
     }
 

src/main/java/com/example/BookRepository.java

@@ -1,20 +1,14 @@
 package com.example;
 
-import io.micronaut.core.annotation.NonNull;
 import io.micronaut.context.annotation.Executable;
 import io.micronaut.data.annotation.*;
-import io.micronaut.data.model.*;
 import io.micronaut.data.repository.CrudRepository;
 
-import javax.validation.Valid;
-import javax.validation.constraints.NotNull;
-import java.util.List;
-
 @Repository // 
-interface BookRepository extends CrudRepository<Pen, Long> {
+interface BookRepository extends CrudRepository<Book, Long> {
 
     @Executable
-    Pen find(String title);
+    Book find(String title);
 
 
 

src/main/java/com/example/BookService.java

@@ -15,14 +15,14 @@ public class BookService {
 
     public void initDataBase(){
 
-        Pen book = new Pen();
+        Book book = new Book();
         book.setTitle("The Stand");
         book.setPages(1000);
         repository.save(book);
     }
 
-    public List<Pen> findAll(){
+    public List<Book> findAll(){
 
-        return (List<Pen>) repository.findAll();
+        return (List<Book>) repository.findAll();
     }
 }

src/main/resources/application.yml

@@ -8,19 +8,20 @@ netty:
 
 datasources:
   default:
-    url: jdbc:h2:mem:devDb
-    driverClassName: org.h2.Driver
-    username: sa
+    url: 'jdbc:h2:mem:liquibaseDisabledDb;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=TRUE'
+    username: 'sa'
     password: ''
-    schema-generate: CREATE_DROP
-    dialect: H2
-
+    driverClassName: 'org.h2.Driver'
 jpa:
   default:
-    entity-scan:
-      packages: 'com.example'
+    packages-to-scan:
+      - 'com.example'
     properties:
       hibernate:
         hbm2ddl:
           auto: update
-        show_sql: true
+        show_sql: true
+liquibase:
+  datasources:
+    default:
+      change-log: 'classpath:db/liquibase-changelog.xml'