dependencies: Fix #2297: Upgrade H2 (#2317)

* refactor: drop tables according to their dependencies

* refactor: renamed table because USER is an SQL keyword

* dep: upgrade com.h2database.h2 1.4.190 to 2.1.214

domain-model/src/main/java/com/iluwatar/domainmodel/App.java

@@ -60,8 +60,8 @@ public class App {
           + "customer_name varchar references CUSTOMERS(name));";
 
   public static final String DELETE_SCHEMA_SQL =
-      "DROP TABLE CUSTOMERS IF EXISTS;"
-          + "DROP TABLE PURCHASES IF EXISTS;"
+      "DROP TABLE PURCHASES IF EXISTS;"
+          + "DROP TABLE CUSTOMERS IF EXISTS;"
           + "DROP TABLE PRODUCTS IF EXISTS;";
 
   /**

metadata-mapping/README.md

@@ -26,14 +26,14 @@ Wikipedia says
 
 **Programmatic Example**
 
-We give an example about visiting the information of `USER` table in `h2` database. Firstly, we create `USER` table with `h2`:
+We give an example about visiting the information of `user_account` table in `h2` database. Firstly, we create `user_account` table with `h2`:
 
 ```java
 @Slf4j
 public class DatabaseUtil {
   private static final String DB_URL = "jdbc:h2:mem:metamapping";
-  private static final String CREATE_SCHEMA_SQL = "DROP TABLE IF EXISTS `user`;"
-      + "CREATE TABLE `user` (\n"
+  private static final String CREATE_SCHEMA_SQL = "DROP TABLE IF EXISTS `user_account`;"
+      + "CREATE TABLE `user_account` (\n"
       + "  `id` int(11) NOT NULL AUTO_INCREMENT,\n"
       + "  `username` varchar(255) NOT NULL,\n"
       + "  `password` varchar(255) NOT NULL,\n"
@@ -88,7 +88,7 @@ Then we write a `xml` file to show the mapping between the table and the object:
     "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
 
 <hibernate-mapping>
-  <class name="com.iluwatar.metamapping.model.User" table="user">
+  <class name="com.iluwatar.metamapping.model.User" table="user_account">
     <id name="id" type="java.lang.Integer" column="id">
       <generator class="native"/>
     </id>

metadata-mapping/src/main/java/com/iluwatar/metamapping/utils/DatabaseUtil.java

@@ -34,8 +34,8 @@ import org.h2.jdbcx.JdbcDataSource;
 @Slf4j
 public class DatabaseUtil {
   private static final String DB_URL = "jdbc:h2:mem:metamapping";
-  private static final String CREATE_SCHEMA_SQL = "DROP TABLE IF EXISTS `user`;"
-      + "CREATE TABLE `user` (\n"
+  private static final String CREATE_SCHEMA_SQL = "DROP TABLE IF EXISTS `user_account`;"
+      + "CREATE TABLE `user_account` (\n"
       + "  `id` int(11) NOT NULL AUTO_INCREMENT,\n"
       + "  `username` varchar(255) NOT NULL,\n"
       + "  `password` varchar(255) NOT NULL,\n"

metadata-mapping/src/main/resources/com/iluwatar/metamapping/model/User.hbm.xml

@@ -4,7 +4,7 @@
     "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
 
 <hibernate-mapping>
-  <class name="com.iluwatar.metamapping.model.User" table="user">
+  <class name="com.iluwatar.metamapping.model.User" table="user_account">
     <id name="id" type="java.lang.Integer" column="id">
       <generator class="native"/>
     </id>

pom.xml

@@ -38,7 +38,6 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <sonar-maven-plugin.version>3.8.0.2131</sonar-maven-plugin.version>
     <spring-boot.version>2.7.5</spring-boot.version>
-    <h2.version>1.4.190</h2.version>
     <jacoco.version>0.8.8</jacoco.version>
     <commons-dbcp.version>1.4</commons-dbcp.version>
     <camel.version>2.25.1</camel.version>
@@ -232,11 +231,6 @@
         <type>pom</type>
         <scope>import</scope>
       </dependency>
-      <dependency>
-        <groupId>com.h2database</groupId>
-        <artifactId>h2</artifactId>
-        <version>${h2.version}</version>
-      </dependency>
       <dependency>
         <groupId>commons-dbcp</groupId>
         <artifactId>commons-dbcp</artifactId>

transaction-script/src/main/java/com/iluwatar/transactionscript/RoomSchemaSql.java

@@ -30,7 +30,7 @@ package com.iluwatar.transactionscript;
 public final class RoomSchemaSql {
 
   public static final String CREATE_SCHEMA_SQL =
-      "CREATE TABLE ROOMS (ID NUMBER, ROOM_TYPE VARCHAR(100), PRICE INT(100), BOOKED VARCHAR(100))";
+      "CREATE TABLE ROOMS (ID NUMBER, ROOM_TYPE VARCHAR(100), PRICE INT, BOOKED VARCHAR(100))";
   public static final String DELETE_SCHEMA_SQL = "DROP TABLE ROOMS IF EXISTS";
 
   private RoomSchemaSql() {