From 88643b70767d7b670a06ec3d8a7b1efda2eb9ef3 Mon Sep 17 00:00:00 2001
From: Martin Goik <goik@hdm-stuttgart.de>
Date: Thu, 11 Dec 2014 17:15:23 +0100
Subject: [PATCH] University JPA example
---
Sda2/P/Jpa/University/.gitignore | 5 +
Sda2/P/Jpa/University/pom.xml | 98 +++++++++++++++++++
.../mi/sda2/jpa/cd/domain/Lecture.java | 68 +++++++++++++
.../mi/sda2/jpa/cd/domain/Student.java | 60 ++++++++++++
.../mi/sda2/jpa/cd/domain/StudentLecture.java | 72 ++++++++++++++
.../mi/sda2/jpa/university/Driver.java | 69 +++++++++++++
.../main/resources/META-INF/persistence.xml | 22 +++++
.../University/src/main/resources/log4j2.xml | 21 ++++
.../mi/sda2/jpa/university/AppTest.java | 17 ++++
9 files changed, 432 insertions(+)
create mode 100644 Sda2/P/Jpa/University/.gitignore
create mode 100644 Sda2/P/Jpa/University/pom.xml
create mode 100644 Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/cd/domain/Lecture.java
create mode 100644 Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/cd/domain/Student.java
create mode 100644 Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/cd/domain/StudentLecture.java
create mode 100644 Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/university/Driver.java
create mode 100644 Sda2/P/Jpa/University/src/main/resources/META-INF/persistence.xml
create mode 100644 Sda2/P/Jpa/University/src/main/resources/log4j2.xml
create mode 100644 Sda2/P/Jpa/University/src/test/java/de/hdm_stuttgart/mi/sda2/jpa/university/AppTest.java
diff --git a/Sda2/P/Jpa/University/.gitignore b/Sda2/P/Jpa/University/.gitignore
new file mode 100644
index 000000000..60016e96d
--- /dev/null
+++ b/Sda2/P/Jpa/University/.gitignore
@@ -0,0 +1,5 @@
+/target/
+/.settings/
+.classpath
+.project
+A1.log
diff --git a/Sda2/P/Jpa/University/pom.xml b/Sda2/P/Jpa/University/pom.xml
new file mode 100644
index 000000000..6ab35d427
--- /dev/null
+++ b/Sda2/P/Jpa/University/pom.xml
@@ -0,0 +1,98 @@
+<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>
+
+ <groupId>de.hdm-stuttgart.mi.sda2.jpa</groupId>
+ <artifactId>university</artifactId>
+ <version>0.9</version>
+ <packaging>jar</packaging>
+
+ <name>university</name>
+
+ <!--Fixme: Add a sensible project related domain here -->
+ <url>http://somedomain.org</url>
+
+ <properties>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ </properties>
+
+ <dependencies>
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <version>4.11</version>
+ <scope>test</scope>
+ </dependency>
+
+ <dependency>
+ <groupId>org.apache.logging.log4j</groupId>
+ <artifactId>log4j-api</artifactId>
+ <version>2.1</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.logging.log4j</groupId>
+ <artifactId>log4j-core</artifactId>
+ <version>2.1</version>
+ </dependency>
+
+ <dependency>
+ <groupId>mysql</groupId>
+ <artifactId>mysql-connector-java</artifactId>
+ <version>5.1.33</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.eclipse.persistence</groupId>
+ <artifactId>eclipselink</artifactId>
+ <version>2.5.0</version>
+ </dependency>
+
+ </dependencies>
+
+ <build>
+ <plugins>
+
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-compiler-plugin</artifactId>
+ <version>3.1</version>
+ <configuration>
+ <source>1.8</source>
+ <target>1.8</target>
+ </configuration>
+ </plugin>
+
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-javadoc-plugin</artifactId>
+ <version>2.10.1</version>
+ <configuration />
+ </plugin>
+
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-shade-plugin</artifactId>
+ <version>2.3</version>
+ <configuration>
+ <transformers>
+ <transformer
+ implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
+ <manifestEntries>
+ <Main-Class>de.hdm_stuttgart.mi.sda2.jpa.cd.App</Main-Class>
+ </manifestEntries>
+ </transformer>
+ </transformers>
+ </configuration>
+ <executions>
+ <execution>
+ <phase>package</phase>
+ <goals>
+ <goal>shade</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
+
+ </plugins>
+ </build>
+</project>
diff --git a/Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/cd/domain/Lecture.java b/Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/cd/domain/Lecture.java
new file mode 100644
index 000000000..e099845b6
--- /dev/null
+++ b/Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/cd/domain/Lecture.java
@@ -0,0 +1,68 @@
+package de.hdm_stuttgart.mi.sda2.jpa.cd.domain;
+
+import static javax.persistence.CascadeType.PERSIST;
+import static javax.persistence.CascadeType.REMOVE;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+import javax.persistence.Table;
+
+@Entity @Table(name = "Lecture")
+public class Lecture {
+ @Id
+ @GeneratedValue
+ Long id;
+
+ @Column(nullable=false)
+ String title;
+
+ @Column(unique=true, nullable=false)
+ int no;
+
+ @OneToMany(mappedBy="lecture", cascade={PERSIST, REMOVE})
+ Set<StudentLecture> students = new HashSet<StudentLecture>();
+
+ protected Lecture() {}
+
+ public Long getId() {
+ return id;
+ }
+
+ public Set<StudentLecture> getStudents() {
+ return students;
+ }
+
+ public void setStudents(Set<StudentLecture> students) {
+ this.students = students;
+ }
+
+ public Lecture(final String title, final int no) {
+ setTitle(title);
+ setNo(no);
+ }
+
+ public String getTitle() {
+ return title;
+ }
+
+ public void setTitle(String title) {
+ this.title = title;
+ }
+
+ public int getNo() {
+ return no;
+ }
+
+ public void setNo(int no) {
+ this.no = no;
+ }
+
+
+
+}
diff --git a/Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/cd/domain/Student.java b/Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/cd/domain/Student.java
new file mode 100644
index 000000000..5d9fd4bac
--- /dev/null
+++ b/Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/cd/domain/Student.java
@@ -0,0 +1,60 @@
+package de.hdm_stuttgart.mi.sda2.jpa.cd.domain;
+
+import static javax.persistence.CascadeType.PERSIST;
+import static javax.persistence.CascadeType.REMOVE;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+import javax.persistence.Table;
+
+
+@Entity @Table(name = "Student")
+public class Student {
+ @Id
+ @GeneratedValue
+ Long id;
+
+ @Column(nullable=false)
+ String fullName;
+
+ @Column(unique=true, nullable=false)
+ int matriculation;
+
+ @OneToMany(mappedBy="student", cascade={PERSIST, REMOVE})
+ Set<StudentLecture> lectures = new HashSet<StudentLecture>();
+
+ protected Student() {}
+
+ public Set<StudentLecture> getLectures() {
+ return lectures;
+ }
+ public void setLectures(Set<StudentLecture> lectures) {
+ this.lectures = lectures;
+ }
+
+ public Student(final String fullName, int matriculation) {
+ setFullName(fullName);
+ setMatriculation(matriculation);
+ }
+ public String getFullName() {
+ return fullName;
+ }
+ public void setFullName(String fullName) {
+ this.fullName = fullName;
+ }
+ public int getMatriculation() {
+ return matriculation;
+ }
+ public void setMatriculation(int matriculation) {
+ this.matriculation = matriculation;
+ }
+ public Long getId() {
+ return id;
+ }
+}
diff --git a/Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/cd/domain/StudentLecture.java b/Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/cd/domain/StudentLecture.java
new file mode 100644
index 000000000..d84b4b523
--- /dev/null
+++ b/Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/cd/domain/StudentLecture.java
@@ -0,0 +1,72 @@
+package de.hdm_stuttgart.mi.sda2.jpa.cd.domain;
+
+import static javax.persistence.CascadeType.PERSIST;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import javax.persistence.Table;
+import javax.persistence.UniqueConstraint;
+
+@Entity
+@Table(name = "StudentLecture", uniqueConstraints=@UniqueConstraint(columnNames={"student", "lecture"}))
+public class StudentLecture {
+
+ @Id @GeneratedValue
+ Long id;
+
+ @ManyToOne(cascade={PERSIST})
+ @JoinColumn(name="student", nullable=false)
+ Student student;
+
+ @ManyToOne(cascade={PERSIST})
+ @JoinColumn(name="lecture", nullable=false)
+ Lecture lecture;
+
+ @Column(nullable=false)
+ int workload;
+
+ protected StudentLecture() {}
+
+ public StudentLecture(final Student student, final Lecture lecture, int workload) {
+ setStudent(student);
+ student.getLectures().add(this);
+
+ setLecture(lecture);
+ lecture.getStudents().add(this);
+ setWorkload(workload);
+ }
+
+ public Long getId() {
+ return id;
+ }
+
+ public Student getStudent() {
+ return student;
+ }
+
+ public void setStudent(Student student) {
+ this.student = student;
+ }
+
+ public Lecture getLecture() {
+ return lecture;
+ }
+
+ public void setLecture(Lecture lecture) {
+ this.lecture = lecture;
+ }
+
+ public int getWorkload() {
+ return workload;
+ }
+
+ public void setWorkload(int workload) {
+ this.workload = workload;
+ }
+}
+
+
diff --git a/Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/university/Driver.java b/Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/university/Driver.java
new file mode 100644
index 000000000..611cc34d1
--- /dev/null
+++ b/Sda2/P/Jpa/University/src/main/java/de/hdm_stuttgart/mi/sda2/jpa/university/Driver.java
@@ -0,0 +1,69 @@
+package de.hdm_stuttgart.mi.sda2.jpa.university;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.EntityTransaction;
+import javax.persistence.Persistence;
+import javax.xml.bind.JAXBException;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import de.hdm_stuttgart.mi.sda2.jpa.cd.domain.Lecture;
+import de.hdm_stuttgart.mi.sda2.jpa.cd.domain.Student;
+import de.hdm_stuttgart.mi.sda2.jpa.cd.domain.StudentLecture;
+
+/**
+ * A simple http://logging.apache.org/log4j/2.x demo, see file log4j2.xml for
+ * configuration options.
+ *
+ */
+public class Driver {
+ private static Logger log = LogManager.getLogger(Driver.class);
+
+ /**
+ * @param args
+ * Unused
+ * @throws JAXBException
+ */
+ public static void main(String[] args) throws JAXBException {
+
+ final EntityManagerFactory factory = Persistence
+ .createEntityManagerFactory("persistenceUnit");
+ final EntityManager manager = factory.createEntityManager();
+
+ final EntityTransaction tx = manager.getTransaction();
+
+ final Student joe = new Student("Joe Blix", 12346);
+ final Lecture db = new Lecture("Database systems", 11312);
+ final StudentLecture joeDb = new StudentLecture(joe, db, 5);
+
+ tx.begin();
+ {
+ // manager.persist(joe); // not required if cascading persist is
+ // enabled
+ // manager.persist(db);
+ manager.persist(joeDb);
+ }
+ tx.commit();
+
+ tx.begin();
+ {
+ manager.refresh(joe);
+ System.out.println("Lectures of Joe:");
+ for (StudentLecture sl : joe.getLectures()) {
+ System.out.println(sl.getLecture().getTitle());
+ }
+ }
+ tx.commit();
+
+ tx.begin();
+ {
+ System.out.println("Deleting Joe from Database");
+ manager.remove(joe);
+ }
+ tx.commit();
+
+ }
+
+}
diff --git a/Sda2/P/Jpa/University/src/main/resources/META-INF/persistence.xml b/Sda2/P/Jpa/University/src/main/resources/META-INF/persistence.xml
new file mode 100644
index 000000000..6914d0be7
--- /dev/null
+++ b/Sda2/P/Jpa/University/src/main/resources/META-INF/persistence.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
+ version="2.0" xmlns="http://java.sun.com/xml/ns/persistence">
+ <persistence-unit name="persistenceUnit" transaction-type="RESOURCE_LOCAL">
+ <!-- shouldn't be valid for java SE per specification, but it works for EclipseLink ... -->
+ <exclude-unlisted-classes>false</exclude-unlisted-classes>
+ <properties>
+
+ <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
+ <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/hdm" />
+ <property name="javax.persistence.jdbc.user" value="hdmuser" />
+ <property name="javax.persistence.jdbc.password" value="XYZ" />
+
+ <!-- EclipseLink should create the database schema automatically -->
+ <property name="eclipselink.ddl-generation" value="drop-and-create-tables" />
+ <property name="eclipselink.ddl-generation.output-mode" value="database" />
+ <property name="eclipselink.logging.level" value="SEVERE"/>
+ </properties>
+
+ </persistence-unit>
+</persistence>
\ No newline at end of file
diff --git a/Sda2/P/Jpa/University/src/main/resources/log4j2.xml b/Sda2/P/Jpa/University/src/main/resources/log4j2.xml
new file mode 100644
index 000000000..3d47b7de2
--- /dev/null
+++ b/Sda2/P/Jpa/University/src/main/resources/log4j2.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration>
+ <Appenders>
+ <File name="A1" fileName="A1.log" append="false">
+ <PatternLayout pattern="%t %-5p %c{2} - %m%n"/>
+ </File>
+ <Console name="STDOUT" target="SYSTEM_OUT">
+ <PatternLayout pattern="%d %-5p [%t] %C{2} (%F:%L) - %m%n"/>
+ </Console>
+ </Appenders>
+ <Loggers>
+
+ <!-- You my want to define class or package level per-logger rules -->
+ <Logger name="de.hdm_stuttgart.mi.sda2.jpa.cd.App" level="debug">
+ <AppenderRef ref="A1"/>
+ </Logger>
+ <Root level="debug">
+ <AppenderRef ref="STDOUT"/>
+ </Root>
+ </Loggers>
+</Configuration>
\ No newline at end of file
diff --git a/Sda2/P/Jpa/University/src/test/java/de/hdm_stuttgart/mi/sda2/jpa/university/AppTest.java b/Sda2/P/Jpa/University/src/test/java/de/hdm_stuttgart/mi/sda2/jpa/university/AppTest.java
new file mode 100644
index 000000000..8e9ad2d7d
--- /dev/null
+++ b/Sda2/P/Jpa/University/src/test/java/de/hdm_stuttgart/mi/sda2/jpa/university/AppTest.java
@@ -0,0 +1,17 @@
+package de.hdm_stuttgart.mi.sda2.jpa.university;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * Unit test for simple App.
+ */
+public class AppTest {
+ /**
+ * Dummy test method
+ */
+ @Test
+ public void testApp() {
+ Assert.assertTrue( true );
+ }
+}
--
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