evolve(hibernate): @OneToMay retrieve instructor courses demo

hb-03-one-to-many/src/com/luv2code/hibernate/demo/GetInstructorCoursesDemo.java

@@ -0,0 +1,54 @@
+package com.luv2code.hibernate.demo;
+
+import com.luv2code.hibernate.demo.entity.Course;
+import com.luv2code.hibernate.demo.entity.Instructor;
+import com.luv2code.hibernate.demo.entity.InstructorDetail;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.Configuration;
+
+public class GetInstructorCoursesDemo {
+
+    public static void main(String[] args) {
+
+        // create session factory
+        SessionFactory factory = new Configuration()
+                                    .configure("hibernate.cfg.xml")
+                                    .addAnnotatedClass(Instructor.class)
+                                    .addAnnotatedClass(InstructorDetail.class)
+                                    .addAnnotatedClass(Course.class)
+                                    .buildSessionFactory();
+
+        // create session
+        Session session = factory.getCurrentSession();
+
+        try {
+            // start transaction
+            session.beginTransaction();
+
+            // get the instructor from db
+            int id = 1;
+            Instructor instructor = session.get(Instructor.class, id);
+
+            System.out.println("Instructor: " + instructor);
+
+            // get courses for instructor
+            System.out.println("Courses: " + instructor.getCourses());
+
+            // commit
+            session.getTransaction().commit();
+
+            System.out.println("DONE!");
+
+        } catch (Exception e) {
+            e.printStackTrace();
+        } finally {
+
+            // add clean up code
+            session.close();
+            factory.close();
+        }
+
+    }
+
+}