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Merge branch 'master' of https://github.com/eugenp/tutorials

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This commit is contained in:
Jonathan Cook
2020-08-13 09:05:53 +02:00
parent e9e01c313c 1e40fd51a7
commit 7cab9186b4
67 changed files with 1240 additions and 380 deletions
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core-java-modules/core-java-collections-list-3/pom.xml
+6
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@@ -21,6 +21,12 @@
<artifactId>commons-collections4</artifactId>
<version>${commons-collections4.version}</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
core-java-modules/core-java-collections-list-3/src/test/java/com/baeldung/list/difference/FindDifferencesBetweenListsUnitTest.java
+96
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@@ -0,0 +1,96 @@
package com.baeldung.list.difference;
import com.google.common.collect.Sets;
import org.apache.commons.collections4.CollectionUtils;
import org.junit.Test;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import static org.junit.jupiter.api.Assertions.*;
import static org.assertj.core.api.Assertions.*;
public class FindDifferencesBetweenListsUnitTest {
private static final List<String> listOne = Arrays.asList("Jack", "Tom", "Sam", "John", "James", "Jack");
private static final List<String> listTwo = Arrays.asList("Jack", "Daniel", "Sam", "Alan", "James", "George");
@Test
public void givenLists_whenUsingPlainJavaImpl_thenDifferencesAreFound() {
List<String> differences = new ArrayList<>(listOne);
differences.removeAll(listTwo);
assertEquals(2, differences.size());
assertThat(differences).containsExactly("Tom", "John");
}
@Test
public void givenReverseLists_whenUsingPlainJavaImpl_thenDifferencesAreFound() {
List<String> differences = new ArrayList<>(listTwo);
differences.removeAll(listOne);
assertEquals(3, differences.size());
assertThat(differences).containsExactly("Daniel", "Alan", "George");
}
@Test
public void givenLists_whenUsingJavaStreams_thenDifferencesAreFound() {
List<String> differences = listOne.stream()
.filter(element -> !listTwo.contains(element))
.collect(Collectors.toList());
assertEquals(2, differences.size());
assertThat(differences).containsExactly("Tom", "John");
}
@Test
public void givenReverseLists_whenUsingJavaStreams_thenDifferencesAreFound() {
List<String> differences = listTwo.stream()
.filter(element -> !listOne.contains(element))
.collect(Collectors.toList());
assertEquals(3, differences.size());
assertThat(differences).containsExactly("Daniel", "Alan", "George");
}
@Test
public void givenLists_whenUsingGoogleGuava_thenDifferencesAreFound() {
List<String> differences = new ArrayList<>(Sets.difference(Sets.newHashSet(listOne), Sets.newHashSet(listTwo)));
assertEquals(2, differences.size());
assertThat(differences).containsExactlyInAnyOrder("Tom", "John");
}
@Test
public void givenReverseLists_whenUsingGoogleGuava_thenDifferencesAreFound() {
List<String> differences = new ArrayList<>(Sets.difference(Sets.newHashSet(listTwo), Sets.newHashSet(listOne)));
assertEquals(3, differences.size());
assertThat(differences).containsExactlyInAnyOrder("Daniel", "Alan", "George");
}
@Test
public void givenLists_whenUsingApacheCommons_thenDifferencesAreFound() {
List<String> differences = new ArrayList<>((CollectionUtils.removeAll(listOne, listTwo)));
assertEquals(2, differences.size());
assertThat(differences).containsExactly("Tom", "John");
}
@Test
public void givenReverseLists_whenUsingApacheCommons_thenDifferencesAreFound() {
List<String> differences = new ArrayList<>((CollectionUtils.removeAll(listTwo, listOne)));
assertEquals(3, differences.size());
assertThat(differences).containsExactly("Daniel", "Alan", "George");
}
@Test
public void givenLists_whenUsingPlainJavaImpl_thenDifferencesWithDuplicatesAreFound() {
List<String> differences = new ArrayList<>(listOne);
listTwo.forEach(differences::remove);
assertThat(differences).containsExactly("Tom", "John", "Jack");
}
@Test
public void givenLists_whenUsingApacheCommons_thenDifferencesWithDuplicatesAreFound() {
List<String> differences = new ArrayList<>(CollectionUtils.subtract(listOne, listTwo));
assertEquals(3, differences.size());
assertThat(differences).containsExactly("Tom", "John", "Jack");
}
}
core-java-modules/core-java-concurrency-advanced/src/main/java/com/baeldung/threadlocal/ThreadLocalAwareThreadPool.java
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@@ -0,0 +1,25 @@
package com.baeldung.threadlocal;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.RejectedExecutionHandler;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
public class ThreadLocalAwareThreadPool extends ThreadPoolExecutor {
public ThreadLocalAwareThreadPool(int corePoolSize,
int maximumPoolSize,
long keepAliveTime,
TimeUnit unit,
BlockingQueue<Runnable> workQueue,
ThreadFactory threadFactory,
RejectedExecutionHandler handler) {
super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue, threadFactory, handler);
}
@Override
protected void afterExecute(Runnable r, Throwable t) {
// Call remove on each ThreadLocal
}
}
core-java-modules/core-java-io-3/src/test/java/com/baeldung/openoptions/OpenOptionsUnitTest.java
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@@ -0,0 +1,96 @@
package com.baeldung.openoptions;
import org.hamcrest.CoreMatchers;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.*;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
import static org.junit.Assert.*;
public class OpenOptionsUnitTest {
private static final String HOME = System.getProperty("user.home");
private static final String DUMMY_FILE_NAME = "sample.txt";
private static final String EXISTING_FILE_NAME = "existingFile.txt";
private static final String DUMMY_TEXT = "This is a sample text.";
private static final String ANOTHER_DUMMY_TEXT = "This is a another text.";
@BeforeClass
public static void beforeAll() throws IOException {
Path path = Paths.get(HOME, DUMMY_FILE_NAME);
try (OutputStream out = Files.newOutputStream(path)) {
out.write(DUMMY_TEXT.getBytes());
}
Files.createFile(Paths.get(HOME, EXISTING_FILE_NAME));
}
@AfterClass
public static void afterAll() throws IOException {
Files.delete(Paths.get(HOME, "newfile.txt"));
Files.delete(Paths.get(HOME, "sparse.txt"));
Files.delete(Paths.get(HOME, DUMMY_FILE_NAME));
}
@Test
public void givenExistingPath_whenCreateNewFile_thenCorrect() throws IOException {
Path path = Paths.get(HOME, "newfile.txt");
assertFalse(Files.exists(path));
Files.write(path, DUMMY_TEXT.getBytes(), StandardOpenOption.CREATE);
assertTrue(Files.exists(path));
}
@Test
public void givenExistingPath_whenReadExistingFile_thenCorrect() throws IOException {
Path path = Paths.get(HOME, DUMMY_FILE_NAME);
try (InputStream in = Files.newInputStream(path); BufferedReader reader = new BufferedReader(new InputStreamReader(in))) {
String line;
while ((line = reader.readLine()) != null) {
assertThat(line, CoreMatchers.containsString(DUMMY_TEXT));
}
}
}
@Test
public void givenExistingPath_whenWriteToExistingFile_thenCorrect() throws IOException {
Path path = Paths.get(HOME, DUMMY_FILE_NAME);
try (OutputStream out = Files.newOutputStream(path, StandardOpenOption.APPEND, StandardOpenOption.WRITE)) {
out.write(ANOTHER_DUMMY_TEXT.getBytes());
}
}
@Test
public void givenExistingPath_whenCreateSparseFile_thenCorrect() throws IOException {
Path path = Paths.get(HOME, "sparse.txt");
Files.write(path, DUMMY_TEXT.getBytes(), StandardOpenOption.CREATE_NEW, StandardOpenOption.SPARSE);
}
@Test
public void givenExistingPath_whenDeleteOnClose_thenCorrect() throws IOException {
Path path = Paths.get(HOME, EXISTING_FILE_NAME);
assertTrue(Files.exists(path)); // file was already created and exists
try (OutputStream out = Files.newOutputStream(path, StandardOpenOption.APPEND, StandardOpenOption.WRITE, StandardOpenOption.DELETE_ON_CLOSE)) {
out.write(ANOTHER_DUMMY_TEXT.getBytes());
}
assertFalse(Files.exists(path)); // file is deleted
}
@Test
public void givenExistingPath_whenWriteAndSync_thenCorrect() throws IOException {
Path path = Paths.get(HOME, DUMMY_FILE_NAME);
Files.write(path, ANOTHER_DUMMY_TEXT.getBytes(), StandardOpenOption.APPEND, StandardOpenOption.WRITE, StandardOpenOption.SYNC);
}
}
core-java-modules/core-java-nio-2/src/main/java/com/baeldung/selector/EchoServer.java
+4 -4
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@@ -49,11 +49,11 @@ public class EchoServer {
if (new String(buffer.array()).trim().equals(POISON_PILL)) {
client.close();
System.out.println("Not accepting client messages anymore");
} else {
buffer.flip();
client.write(buffer);
buffer.clear();
}
buffer.flip();
client.write(buffer);
buffer.clear();
}
private static void register(Selector selector, ServerSocketChannel serverSocket) throws IOException {
jhipster-5/bookstore-monolith/pom.xml
+1 -1
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@@ -3,7 +3,7 @@
<modelVersion>4.0.0</modelVersion>
<groupId>com.baeldung.jhipster5</groupId>
<artifactId>bookstore</artifactId>
<artifactId>bookstore-monolith</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>Bookstore</name>
jib/pom.xml
+1 -1
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@@ -40,6 +40,6 @@
</build>
<properties>
<jib-maven-plugin.version>0.9.10</jib-maven-plugin.version>
<jib-maven-plugin.version>2.5.0</jib-maven-plugin.version>
</properties>
</project>
parent-spring-5/pom.xml
+1 -1
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@@ -31,7 +31,7 @@
</dependencies>
<properties>
<spring.version>5.2.5.RELEASE</spring.version>
<spring.version>5.2.8.RELEASE</spring.version>
<spring-security.version>5.2.3.RELEASE</spring-security.version>
<spring-boot-starter-test.version>1.5.10.RELEASE</spring-boot-starter-test.version>
</properties>
persistence-modules/java-jpa-3/README.md
+3
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@@ -0,0 +1,3 @@
## JPA in Java
This module contains articles about the Java Persistence API (JPA) in Java.
persistence-modules/java-jpa-3/pom.xml
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@@ -0,0 +1,83 @@
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>java-jpa-3</artifactId>
<name>java-jpa-3</name>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>persistence-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-jpamodelgen</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>${h2.version}</version>
</dependency>
<!--Compile time JPA API -->
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>javax.persistence-api</artifactId>
<version>${javax.persistence-api.version}</version>
</dependency>
<!--Runtime JPA implementation -->
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>eclipselink</artifactId>
<version>${eclipselink.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>${postgres.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<compilerArgument>-proc:none</compilerArgument>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<hibernate.version>5.4.14.Final</hibernate.version>
<eclipselink.version>2.7.4</eclipselink.version>
<postgres.version>42.2.5</postgres.version>
<javax.persistence-api.version>2.2</javax.persistence-api.version>
<assertj.version>3.11.1</assertj.version>
<maven-compiler-plugin.version>3.5.1</maven-compiler-plugin.version>
<maven-processor-plugin.version>3.3.3</maven-processor-plugin.version>
<build-helper-maven-plugin.version>3.0.0</build-helper-maven-plugin.version>
</properties>
</project>
persistence-modules/java-jpa-3/src/main/java/com/baeldung/jpa/equality/EqualByBusinessKey.java
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@@ -0,0 +1,53 @@
package com.baeldung.jpa.equality;
import javax.persistence.*;
@Entity
public class EqualByBusinessKey {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String email;
public EqualByBusinessKey() {
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
@Override
public int hashCode() {
return java.util.Objects.hashCode(email);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (obj instanceof EqualByBusinessKey) {
if (((EqualByBusinessKey) obj).getEmail() == getEmail()) {
return true;
}
}
return false;
}
}
persistence-modules/java-jpa-3/src/main/java/com/baeldung/jpa/equality/EqualById.java
+55
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@@ -0,0 +1,55 @@
package com.baeldung.jpa.equality;
import javax.persistence.*;
@Entity
public class EqualById {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String email;
public EqualById() {
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((id == null) ? 0 : id.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (obj instanceof EqualById) {
return ((EqualById) obj).getId().equals(getId());
}
return false;
}
}
persistence-modules/java-jpa-3/src/main/java/com/baeldung/jpa/equality/EqualByJavaDefault.java
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@@ -0,0 +1,36 @@
package com.baeldung.jpa.equality;
import javax.persistence.*;
@Entity
public class EqualByJavaDefault implements Cloneable{
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String email;
public EqualByJavaDefault() {
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public Object clone() throws CloneNotSupportedException {
return super.clone();
}
}
persistence-modules/java-jpa-3/src/main/resources/META-INF/persistence.xml
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@@ -0,0 +1,25 @@
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_2.xsd"
version="2.2">
<persistence-unit name="jpa-h2-equality">
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<class>com.baeldung.jpa.equality.EqualByJavaDefault</class>
<class>com.baeldung.jpa.equality.EqualById</class>
<class>com.baeldung.jpa.equality.EqualByBusinessKey</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="javax.persistence.jdbc.driver" value="org.h2.Driver" />
<property name="javax.persistence.jdbc.url" value="jdbc:h2:mem:test" />
<property name="javax.persistence.jdbc.user" value="sa" />
<property name="javax.persistence.jdbc.password" value="" />
<property name="javax.persistence.jdbc.driver" value="org.h2.Driver" />
<property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect" />
<property name="hibernate.hbm2ddl.auto" value="create-drop" />
<property name="show_sql" value="false" />
<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false" />
</properties>
</persistence-unit>
</persistence>
persistence-modules/java-jpa-3/src/main/resources/logback.xml
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@@ -0,0 +1,15 @@
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT"
class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} -
%msg%n
</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>
persistence-modules/java-jpa-3/src/test/java/com/baeldung/jpa/equality/EqualityUnitTest.java
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@@ -0,0 +1,74 @@
package com.baeldung.jpa.equality;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
public class EqualityUnitTest {
private static EntityManagerFactory factory;
private static EntityManager entityManager;
@BeforeClass
public static void setup() {
factory = Persistence.createEntityManagerFactory("jpa-h2-equality");
entityManager = factory.createEntityManager();
}
@Test
public void givenObjectBasedEquality_whenUsingEquals_thenEqualIsBasedOnInstance() throws CloneNotSupportedException {
EqualByJavaDefault object1 = new EqualByJavaDefault();
EqualByJavaDefault object2 = new EqualByJavaDefault();
object1.setEmail("[email protected]");
entityManager.getTransaction().begin();
entityManager.persist(object1);
entityManager.getTransaction().commit();
object2 = (EqualByJavaDefault) object1.clone();
Assert.assertNotEquals(object1, object2);
Assert.assertEquals(object1.getId(), object2.getId());
Assert.assertEquals(object1.getEmail(), object2.getEmail());
}
@Test
public void givenIdBasedEquality_whenUsingEquals_thenEqualIsBasedOnId() {
EqualById object1 = new EqualById();
EqualById object2 = new EqualById();
object1.setEmail("[email protected]");
object2.setEmail("[email protected]");
entityManager.getTransaction().begin();
entityManager.persist(object1);
entityManager.getTransaction().commit();
object2.setId(object1.getId());
Assert.assertEquals(object1, object2);
Assert.assertEquals(object1.getId(), object2.getId());
Assert.assertNotEquals(object1.getEmail(), object2.getEmail());
}
@Test
public void givenBusinessKeyBasedEquality_whenUsingEquals_thenEqualIsBasedOnBusinessKey() {
EqualByBusinessKey object1 = new EqualByBusinessKey();
EqualByBusinessKey object2 = new EqualByBusinessKey();
object1.setEmail("[email protected]");
object2.setEmail("[email protected]");
entityManager.getTransaction().begin();
entityManager.persist(object1);
entityManager.getTransaction().commit();
Assert.assertEquals(object1, object2);
Assert.assertNotEquals(object1.getId(), object2.getId());
}
}
persistence-modules/spring-data-jpa-enterprise/src/main/java/com/baeldung/boot/Application.java
+2 -2
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@@ -6,8 +6,8 @@ import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
@SpringBootApplication
@EnableJpaRepositories("com.baeldung")
@EntityScan("com.baeldung")
@EnableJpaRepositories("com.baeldung.boot")
@EntityScan("com.baeldung.boot")
public class Application {
public static void main(String[] args) {
persistence-modules/spring-data-jpa-enterprise/src/main/java/com/baeldung/osiv/model/BasicUser.java
+1 -1
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@@ -4,7 +4,7 @@ import javax.persistence.*;
import java.util.Set;
@Entity
@Table(name = "users")
@Table(name = "basic_users")
public class BasicUser {
@Id
persistence-modules/spring-jpa-2/.gitignore
+13
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@@ -0,0 +1,13 @@
*.class
#folders#
/target
/neoDb*
/data
/src/main/webapp/WEB-INF/classes
*/META-INF/*
# Packaged files #
*.jar
*.war
*.ear
persistence-modules/spring-jpa-2/README.md
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@@ -0,0 +1,19 @@
=========
## Spring JPA Example Project
### Relevant Articles:
- [Many-To-Many Relationship in JPA](https://www.baeldung.com/jpa-many-to-many)
- More articles: [[<-- prev]](/spring-jpa)
### Eclipse Config
After importing the project into Eclipse, you may see the following error:
"No persistence xml file found in project"
This can be ignored:
- Project -> Properties -> Java Persistance -> JPA -> Error/Warnings -> Select Ignore on "No persistence xml file found in project"
Or:
- Eclipse -> Preferences - Validation - disable the "Build" execution of the JPA Validator
persistence-modules/spring-jpa-2/pom.xml
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@@ -0,0 +1,152 @@
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>spring-jpa</artifactId>
<version>0.1-SNAPSHOT</version>
<name>spring-jpa</name>
<packaging>war</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>persistence-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${org.springframework.version}</version>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!-- persistence -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>xml-apis</groupId>
<artifactId>xml-apis</artifactId>
<version>${xml-apis.version}</version>
</dependency>
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>${javassist.version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql-connector-java.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>${spring-data-jpa.version}</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>${h2.version}</version>
</dependency>
<!-- validation -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>${hibernate-validator.version}</version>
</dependency>
<dependency>
<groupId>javax.el</groupId>
<artifactId>javax.el-api</artifactId>
<version>${javax.el-api.version}</version>
</dependency>
<!-- web -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<scope>provided</scope>
<version>${javax.servlet.servlet-api.version}</version>
</dependency>
<!-- utils -->
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>${guava.version}</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
</dependency>
<!-- test scoped -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>${commons-lang3.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${org.springframework.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<!-- Spring -->
<org.springframework.version>5.1.5.RELEASE</org.springframework.version>
<javassist.version>3.21.0-GA</javassist.version>
<mysql-connector-java.version>6.0.6</mysql-connector-java.version>
<spring-data-jpa.version>2.1.5.RELEASE</spring-data-jpa.version>
<!-- web -->
<javax.servlet.servlet-api.version>2.5</javax.servlet.servlet-api.version>
<!-- various -->
<hibernate-validator.version>6.0.15.Final</hibernate-validator.version>
<xml-apis.version>1.4.01</xml-apis.version>
<javax.el-api.version>2.2.5</javax.el-api.version>
<!-- util -->
<guava.version>21.0</guava.version>
<assertj.version>3.8.0</assertj.version>
</properties>
</project>
persistence-modules/spring-jpa-2/src/main/java/com/baeldung/config/PersistenceJPAConfig.java
+85
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package com.baeldung.config;
import com.google.common.base.Preconditions;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import java.util.Properties;
@Configuration
@EnableTransactionManagement
@PropertySource({ "classpath:persistence-h2.properties" })
@ComponentScan({ "com.baeldung.persistence" })
@EnableJpaRepositories(basePackages = "com.baeldung.persistence.dao")
public class PersistenceJPAConfig {
@Autowired
private Environment env;
public PersistenceJPAConfig() {
super();
}
// beans
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
final LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(dataSource());
em.setPackagesToScan(new String[] { "com.baeldung.persistence.model" });
final HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
em.setJpaVendorAdapter(vendorAdapter);
em.setJpaProperties(additionalProperties());
return em;
}
@Bean
public DataSource dataSource() {
final DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(Preconditions.checkNotNull(env.getProperty("jdbc.driverClassName")));
dataSource.setUrl(Preconditions.checkNotNull(env.getProperty("jdbc.url")));
dataSource.setUsername(Preconditions.checkNotNull(env.getProperty("jdbc.user")));
dataSource.setPassword(Preconditions.checkNotNull(env.getProperty("jdbc.pass")));
return dataSource;
}
@Bean
public PlatformTransactionManager transactionManager(final EntityManagerFactory emf) {
final JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(emf);
return transactionManager;
}
@Bean
public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
return new PersistenceExceptionTranslationPostProcessor();
}
final Properties additionalProperties() {
final Properties hibernateProperties = new Properties();
hibernateProperties.setProperty("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
hibernateProperties.setProperty("hibernate.dialect", env.getProperty("hibernate.dialect"));
hibernateProperties.setProperty("hibernate.cache.use_second_level_cache", "false");
return hibernateProperties;
}
}
persistence-modules/spring-jpa-2/src/main/java/com/baeldung/config/PersistenceJPAConfigXml.java
+17
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package com.baeldung.config;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.ImportResource;
import org.springframework.transaction.annotation.EnableTransactionManagement;
// @Configuration
@EnableTransactionManagement
@ComponentScan({ "com.baeldung.persistence" })
@ImportResource({ "classpath:jpaConfig.xml" })
public class PersistenceJPAConfigXml {
public PersistenceJPAConfigXml() {
super();
}
}
persistence-modules/spring-jpa-2/src/main/java/com/baeldung/config/SpringWebConfig.java
+24
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@@ -0,0 +1,24 @@
package com.baeldung.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;
@EnableWebMvc
@Configuration
@ComponentScan({ "com.baeldung.web" })
public class SpringWebConfig extends WebMvcConfigurerAdapter {
@Bean
public InternalResourceViewResolver viewResolver() {
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setViewClass(JstlView.class);
viewResolver.setPrefix("/WEB-INF/views/jsp/");
viewResolver.setSuffix(".jsp");
return viewResolver;
}
}
persistence-modules/spring-jpa-2/src/main/java/com/baeldung/config/StudentJpaConfig.java
+67
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@@ -0,0 +1,67 @@
package com.baeldung.config;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.springframework.core.env.Environment;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import java.util.Properties;
@Configuration
@EnableJpaRepositories(basePackages = "com.baeldung.inmemory.persistence.dao")
@PropertySource("persistence-student.properties")
@EnableTransactionManagement
public class StudentJpaConfig {
@Autowired
private Environment env;
@Bean
public DataSource dataSource() {
final DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName(env.getProperty("jdbc.driverClassName"));
dataSource.setUrl(env.getProperty("jdbc.url"));
dataSource.setUsername(env.getProperty("jdbc.user"));
dataSource.setPassword(env.getProperty("jdbc.pass"));
return dataSource;
}
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
final LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(dataSource());
em.setPackagesToScan(new String[] { "com.baeldung.inmemory.persistence.model" });
em.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
em.setJpaProperties(additionalProperties());
return em;
}
@Bean
JpaTransactionManager transactionManager(EntityManagerFactory entityManagerFactory) {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactory);
return transactionManager;
}
final Properties additionalProperties() {
final Properties hibernateProperties = new Properties();
hibernateProperties.setProperty("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
hibernateProperties.setProperty("hibernate.dialect", env.getProperty("hibernate.dialect"));
hibernateProperties.setProperty("hibernate.show_sql", env.getProperty("hibernate.show_sql"));
hibernateProperties.setProperty("hibernate.cache.use_second_level_cache", env.getProperty("hibernate.cache.use_second_level_cache"));
hibernateProperties.setProperty("hibernate.cache.use_query_cache", env.getProperty("hibernate.cache.use_query_cache"));
return hibernateProperties;
}
}
persistence-modules/spring-jpa-2/src/main/java/com/baeldung/config/WebInitializer.java
+20
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@@ -0,0 +1,20 @@
package com.baeldung.config;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
public class WebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class<?>[] getRootConfigClasses() {
return new Class[] { PersistenceJPAConfig.class };
}
@Override
protected Class<?>[] getServletConfigClasses() {
return new Class[] { SpringWebConfig.class };
}
@Override
protected String[] getServletMappings() {
return new String[] { "/" };
}
}
persistence-modules/spring-jpa/src/main/java/com/baeldung/manytomany/model/Course.java → persistence-modules/spring-jpa-2/src/main/java/com/baeldung/manytomany/model/Course.java
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persistence-modules/spring-jpa/src/main/java/com/baeldung/manytomany/model/CourseRating.java → persistence-modules/spring-jpa-2/src/main/java/com/baeldung/manytomany/model/CourseRating.java
View File
persistence-modules/spring-jpa/src/main/java/com/baeldung/manytomany/model/CourseRatingKey.java → persistence-modules/spring-jpa-2/src/main/java/com/baeldung/manytomany/model/CourseRatingKey.java
View File
persistence-modules/spring-jpa/src/main/java/com/baeldung/manytomany/model/CourseRegistration.java → persistence-modules/spring-jpa-2/src/main/java/com/baeldung/manytomany/model/CourseRegistration.java
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