[BAEL-694] Hibernate immutable annotation (#1302)

* Add project for hibernate immutable article Add Event entity Add hibernate configuration file Add hibernateutil for configuration Add test to match snippets from article * Create README.md * Update README.md
2017-03-07 09:55:22 -06:00
parent 623b2b9e0d
commit 6fbf90fd27
6 changed files with 229 additions and 0 deletions
@@ -0,0 +1,78 @@
+import com.baeldung.entities.Event;
+import com.baeldung.util.HibernateUtil;
+import org.hibernate.HibernateException;
+import org.hibernate.Session;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import javax.persistence.Table;
+
+public class EventTest {
+
+    private Session session;
+    @Rule
+    public final ExpectedException exception = ExpectedException.none();
+
+    @Before
+    public void setup() {
+        session = HibernateUtil.getSessionFactory().getCurrentSession();
+        session.beginTransaction();
+    }
+
+    @After
+    public void teardown() {
+        HibernateUtil.getSessionFactory().close();
+    }
+
+    @Test
+    public void addEvent() {
+        Event event = new Event();
+        event.setTitle("Public Event");
+        session.save(event);
+        session.getTransaction().commit();
+    }
+
+    @Test
+    public void updateEvent() {
+        Event event = (Event) session.createQuery(
+                "FROM Event WHERE title='My Event'").list().get(0);
+        event.setTitle("Public Event");
+        session.saveOrUpdate(event);
+        session.getTransaction().commit();
+    }
+
+    @Test
+    public void deleteEvent() {
+        Event event = (Event) session.createQuery(
+                "FROM Event WHERE title='My Event'").list().get(0);
+        session.delete(event);
+        session.getTransaction().commit();
+    }
+
+    @Test
+    public void addGuest() {
+        Event event = (Event) session.createQuery(
+                "FROM Event WHERE title='Public Event'").list().get(0);
+        String newGuest = "Sara";
+        event.getGuestList().add(newGuest);
+
+        exception.expect(HibernateException.class);
+        session.save(event);
+        session.getTransaction().commit();
+    }
+
+    @Test
+    public void deleteCascade() {
+        Event event = (Event) session.createQuery(
+                "FROM Event WHERE title='Public Event'").list().get(0);
+        String guest = event.getGuestList().iterator().next();
+        event.getGuestList().remove(guest);
+
+        exception.expect(HibernateException.class);
+        session.saveOrUpdate(event);
+        session.getTransaction().commit();
+    }
+}