diff --git a/Sda2/P/Jpa/HibernateCacheDemo/pom.xml b/Sda2/P/Jpa/HibernateCacheDemo/pom.xml
new file mode 100644
index 0000000000000000000000000000000000000000..b3183ab898eff31df25392d197d0210e7cad7721
--- /dev/null
+++ b/Sda2/P/Jpa/HibernateCacheDemo/pom.xml
@@ -0,0 +1,60 @@
+<?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>
+ <groupId>com.mastertheboss</groupId>
+ <artifactId>EclipseJPAExample</artifactId>
+ <version>1.0-SNAPSHOT</version>
+ <repositories>
+ <repository>
+ <id>EclipseLink Repo</id>
+ <url>http://download.eclipse.org/rt/eclipselink/maven.repo</url>
+ <name>EclipseLink Repo</name>
+ </repository>
+ </repositories>
+ <dependencies>
+ <dependency>
+ <groupId>mysql</groupId>
+ <artifactId>mysql-connector-java</artifactId>
+ <version>5.1.33</version>
+ </dependency>
+
+<!--
+ <dependency>
+ <groupId>org.hibernate.javax.persistence</groupId>
+ <artifactId>hibernate-jpa-2.1-api</artifactId>
+ <version>1.0.0.Final</version>
+ </dependency>
+
+ <dependency>
+ <groupId>net.sf.ehcache</groupId>
+ <artifactId>ehcache</artifactId>
+ <version>2.8.3</version>
+ </dependency>
+
+ -->
+ <dependency>
+ <groupId>org.hibernate</groupId>
+ <artifactId>hibernate-core</artifactId>
+ <version>4.2.16.Final</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.hibernate</groupId>
+ <artifactId>hibernate-entitymanager</artifactId>
+ <version>4.2.16.Final</version>
+ </dependency>
+ <dependency>
+ <groupId>org.hibernate</groupId>
+ <artifactId>hibernate-ehcache</artifactId>
+ <version>4.2.16.Final</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.slf4j</groupId>
+ <artifactId>slf4j-log4j12</artifactId>
+ <version>1.7.9</version>
+ </dependency>
+
+ </dependencies>
+</project>
diff --git a/Sda2/P/Jpa/HibernateCacheDemo/src/main/java/de/hdm_stuttgart/mi/sda2/ehcache/JpaTest.java b/Sda2/P/Jpa/HibernateCacheDemo/src/main/java/de/hdm_stuttgart/mi/sda2/ehcache/JpaTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..825b1c63c94f3ae438542920c5e02ed59e14acf1
--- /dev/null
+++ b/Sda2/P/Jpa/HibernateCacheDemo/src/main/java/de/hdm_stuttgart/mi/sda2/ehcache/JpaTest.java
@@ -0,0 +1,126 @@
+package de.hdm_stuttgart.mi.sda2.ehcache;
+
+import java.util.List;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.EntityTransaction;
+import javax.persistence.Persistence;
+
+import net.sf.ehcache.Cache;
+import net.sf.ehcache.CacheManager;
+import de.hdm_stuttgart.mi.sda2.ehcache.domain.Department;
+import de.hdm_stuttgart.mi.sda2.ehcache.domain.Employee;
+
+public class JpaTest {
+
+ private static EntityManager manager1, manager2, manager3;
+
+ /**
+ * @param args
+ */
+ public static void main(String[] args) {
+
+
+ EntityManagerFactory factory = Persistence.createEntityManagerFactory("persistenceUnit");
+ manager1 = factory.createEntityManager();
+ manager2 = factory.createEntityManager();
+ manager3 = factory.createEntityManager();
+
+ System.out.println("manager1 == manager2:" + (manager1 == manager2));
+
+
+ try {
+ createEmployees(manager1);
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+
+ System.out.println("Reading employees by manager 1");
+ final Employee emp1[] = listEmployees(manager1);
+ System.out.println("-------------------");
+
+ findEmployees(manager2, emp1);
+ findEmployees(manager3, emp1);
+
+ displayCacheState();
+
+ System.out.println("Reading employees by manager 3");
+ listEmployees(manager3);
+ System.out.println("-------------------");
+
+ displayCacheState();
+ }
+
+ private static void findEmployees(final EntityManager manager, final Employee[] employees) {
+ final EntityTransaction tx = manager.getTransaction();
+
+ tx.begin();
+ {
+ for (final Employee e: employees) {
+ System.out.println("Loading employee #" + e.getId() + " by manager " + manager);
+ System.out.println(" ->" + manager.find(Employee.class, e.getId()));
+ }
+ }
+ tx.commit();
+ }
+
+ private static void displayCacheState() {
+ for (CacheManager cm : CacheManager.ALL_CACHE_MANAGERS) {
+ System.out.println("----------- CacheManager:" + cm.getName());
+ for (final String item: cm.getCacheNames()) {
+ System.out.println("Cache:" + item);
+ analyzeCache(cm, item);
+ System.out.println("-------------------");
+ }
+ }
+ }
+
+ private static void analyzeCache(final CacheManager cm, final String cacheName) {
+ Cache cache = cm.getCache(cacheName);
+
+ System.out.println("isDisabled=" +cache.isDisabled());
+
+ System.out.println("hit count:" + cache.getLiveCacheStatistics().getCacheHitCount());
+
+ List<?> cachedObjects = cache.getKeys();
+ System.out.println("Num of objects in cache:" + cachedObjects.size());
+ for (final Object key: cachedObjects) {
+ System.out.println("key:" + key);
+ }
+ }
+
+ private static void createEmployees(final EntityManager manager) {
+ final EntityTransaction tx = manager.getTransaction();
+ tx.begin();
+ {
+ int numOfEmployees = manager.createQuery("Select a From Employee a", Employee.class).getResultList().size();
+ if (numOfEmployees == 0) {
+ Department department = new Department("java");
+ manager.persist(department);
+
+ manager.persist(new Employee("Jakab Gipsz",department));
+ manager.persist(new Employee("Captain Nemo",department));
+ }
+ }
+ tx.commit();
+ }
+
+ private static Employee[] listEmployees(final EntityManager manager) {
+ final EntityTransaction tx = manager.getTransaction();
+
+ List<Employee> resultList;
+ tx.begin();
+ {
+ resultList = manager.createQuery("Select a From Employee a", Employee.class).
+ setHint("org.hibernate.cacheable", true).getResultList();
+ System.out.println("num of employess:" + resultList.size());
+ for (Employee next : resultList) {
+ manager.find(Employee.class, next.getId());
+ System.out.println("next employee: " + next);
+ }
+ }
+ tx.commit();
+ return resultList.toArray(new Employee[0]);
+ }
+}
diff --git a/Sda2/P/Jpa/HibernateCacheDemo/src/main/java/de/hdm_stuttgart/mi/sda2/ehcache/domain/Department.java b/Sda2/P/Jpa/HibernateCacheDemo/src/main/java/de/hdm_stuttgart/mi/sda2/ehcache/domain/Department.java
new file mode 100644
index 0000000000000000000000000000000000000000..081cb52e75748ddb8b8977f010c1f4f7e1349e45
--- /dev/null
+++ b/Sda2/P/Jpa/HibernateCacheDemo/src/main/java/de/hdm_stuttgart/mi/sda2/ehcache/domain/Department.java
@@ -0,0 +1,52 @@
+package de.hdm_stuttgart.mi.sda2.ehcache.domain;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.persistence.Cacheable;
+import javax.persistence.CascadeType;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+
+@Entity
+@Cacheable(true)
+public class Department {
+
+ @Id
+ @GeneratedValue
+ private Long id;
+
+ private String name;
+
+ @OneToMany(mappedBy="department",cascade=CascadeType.PERSIST)
+ private List<Employee> employees = new ArrayList<Employee>();
+
+
+
+ public Department() {
+ super();
+ }
+ public Department(String name) {
+ this.name = name;
+ }
+ public Long getId() {
+ return id;
+ }
+ public void setId(Long id) {
+ this.id = id;
+ }
+ public String getName() {
+ return name;
+ }
+ public void setName(String name) {
+ this.name = name;
+ }
+ public List<Employee> getEmployees() {
+ return employees;
+ }
+ public void setEmployees(List<Employee> employees) {
+ this.employees = employees;
+ }
+}
diff --git a/Sda2/P/Jpa/HibernateCacheDemo/src/main/java/de/hdm_stuttgart/mi/sda2/ehcache/domain/Employee.java b/Sda2/P/Jpa/HibernateCacheDemo/src/main/java/de/hdm_stuttgart/mi/sda2/ehcache/domain/Employee.java
new file mode 100644
index 0000000000000000000000000000000000000000..0c1bcfa3904618d8cc1422696739a89f7e7e972f
--- /dev/null
+++ b/Sda2/P/Jpa/HibernateCacheDemo/src/main/java/de/hdm_stuttgart/mi/sda2/ehcache/domain/Employee.java
@@ -0,0 +1,63 @@
+package de.hdm_stuttgart.mi.sda2.ehcache.domain;
+
+import javax.persistence.Cacheable;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+import javax.persistence.ManyToOne;
+
+@Entity
+@Cacheable(true)
+public class Employee {
+ @Id
+ @GeneratedValue
+ private Long id;
+
+ private String name;
+
+ @ManyToOne
+ private Department department;
+
+ public Employee() {}
+
+ public Employee(String name, Department department) {
+ this.name = name;
+ this.department = department;
+ }
+
+
+ public Employee(String name) {
+ this.name = name;
+ }
+
+ public Long getId() {
+ return id;
+ }
+
+ public void setId(Long id) {
+ this.id = id;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public void setName(String name) {
+ this.name = name;
+ }
+
+ public Department getDepartment() {
+ return department;
+ }
+
+ public void setDepartment(Department department) {
+ this.department = department;
+ }
+
+ @Override
+ public String toString() {
+ return "Employee [id=" + id + ", name=" + name + ", department="
+ + department.getName() + "]";
+ }
+
+}
diff --git a/Sda2/P/Jpa/HibernateCacheDemo/src/main/resources/META-INF/persistence.xml b/Sda2/P/Jpa/HibernateCacheDemo/src/main/resources/META-INF/persistence.xml
new file mode 100644
index 0000000000000000000000000000000000000000..00e20063de5d3f50ef6013a82f308bdaa2cdfd0a
--- /dev/null
+++ b/Sda2/P/Jpa/HibernateCacheDemo/src/main/resources/META-INF/persistence.xml
@@ -0,0 +1,34 @@
+<?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">
+
+ <provider>org.hibernate.ejb.HibernatePersistence</provider>
+
+ <class>de.hdm_stuttgart.mi.sda2.ehcache.domain.Employee</class>
+ <class>de.hdm_stuttgart.mi.sda2.ehcache.domain.Department</class>
+
+ <shared-cache-mode>ENABLE_SELECTIVE</shared-cache-mode>
+ <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" />
+
+ <property name="hibernate.show_sql" value="true"/>
+ <property name="hibernate.hbm2ddl.auto" value="create-drop" />
+ <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect" />
+
+
+ <property name="hibernate.cache.region.factory_class" value="org.hibernate.cache.ehcache.EhCacheRegionFactory"/>
+ <property name="hibernate.cache.use_second_level_cache" value="true" />
+ <property name="hibernate.cache.use_query_cache" value="true" />
+ <property name="hibernate.generate_statistics" value="true" />
+
+
+ </properties>
+
+ </persistence-unit>
+</persistence>
\ No newline at end of file
diff --git a/Sda2/P/Jpa/HibernateCacheDemo/src/main/resources/ehcache.xml b/Sda2/P/Jpa/HibernateCacheDemo/src/main/resources/ehcache.xml
new file mode 100644
index 0000000000000000000000000000000000000000..fbc01fcfd6835ea080a0d9638d0b449e2234c8d5
--- /dev/null
+++ b/Sda2/P/Jpa/HibernateCacheDemo/src/main/resources/ehcache.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ehcache>
+ <diskStore path="/tmp/ehcache"/>
+ <defaultCache maxElementsInMemory="10000"
+ eternal="false"
+ timeToIdleSeconds="300"
+ timeToLiveSeconds="600"
+ diskSpoolBufferSizeMB="30"
+ maxElementsOnDisk="10000"
+ diskExpiryThreadIntervalSeconds="120"
+ memoryStoreEvictionPolicy="LRU" statistics="true">
+ </defaultCache>
+
+ <cache
+ name="org.hibernate.cache.spi.UpdateTimestampsCache"
+ maxElementsInMemory="10000"
+ eternal="false">
+ </cache>
+
+ <cache
+ name="org.hibernate.cache.internal.StandardQueryCache"
+ maxElementsInMemory="10000"
+ eternal="false"
+ timeToLiveSeconds="300">
+ </cache>
+
+ <!--
+ <cache name="XXX"
+ maxElementsInMemory="500"
+ eternal="true"
+ timeToIdleSeconds="0"
+ timeToLiveSeconds="0"
+ overflowToDisk="false"
+ />
+ -->
+</ehcache>
\ No newline at end of file
diff --git a/Sda2/P/Jpa/HibernateCacheDemo/src/main/resources/log4j.properties b/Sda2/P/Jpa/HibernateCacheDemo/src/main/resources/log4j.properties
new file mode 100644
index 0000000000000000000000000000000000000000..510abca9e3a412d0d4267772ac300083245ced29
--- /dev/null
+++ b/Sda2/P/Jpa/HibernateCacheDemo/src/main/resources/log4j.properties
@@ -0,0 +1,7 @@
+log4j.rootLogger=INFO, stdout
+
+# Direct log messages to stdout
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.Target=System.out
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
\ No newline at end of file