Hibernate Fetching Update (#607)

* BAEL-212
Contains:
1. Hibernate Criteria Query Classes
2. Hibernate Criteria Query Test

* Updating the config file and the HibernateUtil class

* Hibernate Criteria Queries Example

* Hibernate Fetching : Eager Loading vs Lazy Loading

* Hibernate Criteria Query files

* Hibernate Eager Loading and Lazy Loading Changes

* Latest Changes on Fetching

* Fetching Changes

* Latest Changes

* Latest Changes

* Undoing the changes

spring-hibernate4/src/test/java/com/baeldung/hibernate/fetching/HibernateFetchingTest.java

@@ -1,24 +1,43 @@
 package com.baeldung.hibernate.fetching;
 
 import static org.junit.Assert.*;
+import java.util.Set;
 
+import org.hibernate.Hibernate;
+import org.junit.Before;
 import org.junit.Test;
 
+import com.baeldung.hibernate.fetching.model.OrderDetail;
+
 import com.baeldung.hibernate.fetching.view.FetchingAppView;
 
 public class HibernateFetchingTest {
 
+
+	//this loads sample data in the database
+	@Before 
+	public void addFecthingTestData(){
+		FetchingAppView fav = new FetchingAppView();
+		fav.createTestData();
+	}
+	
+	//testLazyFetching() tests the lazy loading
+	//Since it lazily loaded so orderDetalSetLazy won't
+	//be initialized
 	@Test
 	public void testLazyFetching() {
 		FetchingAppView fav = new FetchingAppView();
-		fav.createTestData();
-		assertFalse(fav.lazyLoaded());
+		Set<OrderDetail> orderDetalSetLazy = fav.lazyLoaded();
+		assertFalse(Hibernate.isInitialized(orderDetalSetLazy));
 	}
-
+	
+	//testEagerFetching() tests the eager loading
+	//Since it eagerly loaded so orderDetalSetLazy would
+	//be initialized
 	@Test
 	public void testEagerFetching() {
 		FetchingAppView fav = new FetchingAppView();
-		assertTrue(fav.eagerLoaded());
+		Set<OrderDetail> orderDetalSetEager = fav.eagerLoaded();
+		assertTrue(Hibernate.isInitialized(orderDetalSetEager));
 	}
-
 }