add Course entity and jpa persist

src/main/java/Java/domain/CourseDomain.java

@@ -0,0 +1,56 @@
+package domain;
+
+/**
+ * Created by Nils Gerstner on 8/20/17.
+ */
+public class CourseDomain {
+    private long id;
+    private String name;
+    private String description;
+    private String courseNr;
+
+    public CourseDomain(String name, String description, String courseNr){
+        this.name = name;
+        this.description = description;
+        this.courseNr = courseNr;
+    }
+
+    public CourseDomain(long id, String name, String description, String courseNr){
+        this.id = id;
+        this.name = name;
+        this.description = description;
+        this.courseNr = courseNr;
+    }
+
+    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 String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public String getCourseNr() {
+        return courseNr;
+    }
+
+    public void setCourseNr(String courseNr) {
+        this.courseNr = courseNr;
+    }
+}

src/main/java/Java/ejb/CourseService.java

@@ -0,0 +1,20 @@
+package ejb;
+
+import domain.CourseDomain;
+
+import javax.ejb.Local;
+import java.util.List;
+
+/**
+ * Created by Solidbeans on 2017-03-20.
+ */
+@Local
+public interface CourseService {
+
+    void addCourse(CourseDomain course);
+    void updateCourse(CourseDomain course);
+    void removeCourse(Long id);
+    CourseDomain getCourse(Long id);
+    List<CourseDomain> getCourses();
+    public List<CourseDomain> getCoursesContaining(String filter);
+}

src/main/java/Java/ejb/CourseServiceImpl.java

@@ -0,0 +1,69 @@
+package ejb;
+
+import domain.CourseDomain;
+import jpa.Course;
+
+import javax.ejb.Stateless;
+import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Created by Solidbeans on 2017-03-20.
+ */
+
+@Stateless
+public class CourseServiceImpl implements CourseService{
+    @PersistenceContext
+    EntityManager em;
+
+    @Override
+    public void addCourse(CourseDomain course) {
+        Course c = new Course(course.getName(),course.getDescription(),course.getCourseNr());
+        em.persist(c);
+
+    }
+
+    @Override
+    public void updateCourse(CourseDomain course) {
+        Course c = em.find(Course.class,course.getId());
+        c.setName(course.getName());
+        c.setDescription(course.getDescription());
+        c.setCourseNr(course.getCourseNr());
+        em.merge(c);
+    }
+
+    @Override
+    public void removeCourse(Long id) {
+        Course c = em.find(Course.class, id);
+        em.remove(c);
+    }
+
+    @Override
+    public CourseDomain getCourse(Long id) {
+        Course c = em.find(Course.class,id);
+        CourseDomain cd = new CourseDomain(c.getId(),c.getName(),c.getDescription(),c.getCourseNr());
+
+        return cd;
+    }
+
+    @Override
+    public List<CourseDomain> getCourses() {
+       List<Course> courseList = em.createNamedQuery("selectAll").getResultList();
+
+       return courseList.stream().
+               map(c->new CourseDomain(c.getId(),c.getName(),c.getDescription(),c.getCourseNr())).
+               collect(Collectors.toList());
+    }
+
+    @Override
+    public List<CourseDomain> getCoursesContaining(String filter) {
+        List<Course> courseList = em.createNamedQuery("selectSome").setParameter("filt",filter).getResultList();
+
+        return courseList.stream().
+                map(c->new CourseDomain(c.getId(),c.getName(),c.getDescription(),c.getCourseNr())).
+                collect(Collectors.toList());
+    }
+
+}

src/main/java/Java/jpa/Course.java

@@ -0,0 +1,63 @@
+package jpa;
+
+import javax.persistence.*;
+
+/**
+ * Created by Solidbeans on 2017-03-20.
+ */
+@Entity
+@NamedQueries({
+        @NamedQuery(name="selectAll",query="SELECT c FROM Course c"),
+        @NamedQuery(name="selectSome",query="SELECT t FROM Course t WHERE LOCATE(:filt,t.name) OR LOCATE(:filt,t.courseNr) >0 ")
+})
+public class Course {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    private String name;
+    private String description;
+    private String courseNr;
+
+    public Course() {
+    }
+
+    public Course(String name, String description, String courseNr) {
+        this.name = name;
+        this.description = description;
+        this.courseNr = courseNr;
+    }
+
+    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 String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public String getCourseNr() {
+        return courseNr;
+    }
+
+    public void setCourseNr(String courseNr) {
+        this.courseNr = courseNr;
+    }
+}

src/main/resources/META-INF/persistence.xml

@@ -3,17 +3,13 @@
 <persistence version="2.1" 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_1.xsd">
+				 http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
-
+    <persistence-unit name="Persistence-unit" transaction-type="JTA">
-    <persistence-unit name="nameDB" transaction-type="JTA"> <!--same name as in emf definition-->
+        <jta-data-source>jdbc/school</jta-data-source>
-
-        <jta-data-source>jdbc/person</jta-data-source> <!--This resource has to be added to GlassFish-->
         <exclude-unlisted-classes>false</exclude-unlisted-classes>
-
         <properties>
             <!--  <property name="javax.persistence.schema-generation.database.action" value="create"/> -->
-            <property name="javax.persistence.schema-generation.database.action" value="drop-and-create"/>
+             <property name="javax.persistence.schema-generation.database.action" value="drop-and-create"/>
         </properties>
-
     </persistence-unit>
-</persistence>
+</persistence>