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minor cleanup work - formatting

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This commit is contained in:
eugenp 2017-02-04 14:14:23 +02:00
parent 4d5624161f
commit bd6fe7269e
5 changed files with 221 additions and 208 deletions
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25
spring-hibernate4/src/main/java/com/baeldung/hibernate/oneToMany/config/HibernateAnnotationUtil.java
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@ -7,32 +7,31 @@ import org.hibernate.service.ServiceRegistry;
public class HibernateAnnotationUtil { public class HibernateAnnotationUtil {
private static SessionFactory sessionFactory; private static SessionFactory sessionFactory;
private static SessionFactory buildSessionFactory() { private static SessionFactory buildSessionFactory() {
try { try {
// Create the SessionFactory from hibernate-annotation.cfg.xml // Create the SessionFactory from hibernate-annotation.cfg.xml
Configuration configuration = new Configuration(); Configuration configuration = new Configuration();
configuration.configure("hibernate-annotation.cfg.xml"); configuration.configure("hibernate-annotation.cfg.xml");
System.out.println("Hibernate Annotation Configuration loaded"); System.out.println("Hibernate Annotation Configuration loaded");
ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build(); ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();
System.out.println("Hibernate Annotation serviceRegistry created"); System.out.println("Hibernate Annotation serviceRegistry created");
SessionFactory sessionFactory = configuration.buildSessionFactory(serviceRegistry);
SessionFactory sessionFactory = configuration.buildSessionFactory(serviceRegistry);
return sessionFactory; return sessionFactory;
} } catch (Throwable ex) {
catch (Throwable ex) {
System.err.println("Initial SessionFactory creation failed." + ex); System.err.println("Initial SessionFactory creation failed." + ex);
ex.printStackTrace(); ex.printStackTrace();
throw new ExceptionInInitializerError(ex); throw new ExceptionInInitializerError(ex);
} }
} }
public static SessionFactory getSessionFactory() { public static SessionFactory getSessionFactory() {
if(sessionFactory == null) sessionFactory = buildSessionFactory(); if (sessionFactory == null)
sessionFactory = buildSessionFactory();
return sessionFactory; return sessionFactory;
} }
} }

77
spring-hibernate4/src/main/java/com/baeldung/hibernate/oneToMany/main/HibernateOneToManyAnnotationMain.java
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@ -13,48 +13,49 @@ import com.baeldung.hibernate.oneToMany.model.Items;
public class HibernateOneToManyAnnotationMain { public class HibernateOneToManyAnnotationMain {
public static void main(String[] args) { public static void main(String[] args) {
Cart cart = new Cart(); Cart cart = new Cart();
cart.setName("MyCart"); cart.setName("MyCart");
Items item1 = new Items("I10", 10, 1, cart); Items item1 = new Items("I10", 10, 1, cart);
Items item2 = new Items("I20", 20, 2, cart); Items item2 = new Items("I20", 20, 2, cart);
Set<Items> itemsSet = new HashSet<Items>(); Set<Items> itemsSet = new HashSet<Items>();
itemsSet.add(item1); itemsSet.add(item2); itemsSet.add(item1);
itemsSet.add(item2);
cart.setItems(itemsSet); cart.setItems(itemsSet);
cart.setTotal(10*1 + 20*2); cart.setTotal(10 * 1 + 20 * 2);
SessionFactory sessionFactory = null; SessionFactory sessionFactory = null;
Session session = null; Session session = null;
Transaction tx = null; Transaction tx = null;
try{ try {
//Get Session // Get Session
sessionFactory = HibernateAnnotationUtil.getSessionFactory(); sessionFactory = HibernateAnnotationUtil.getSessionFactory();
session = sessionFactory.getCurrentSession(); session = sessionFactory.getCurrentSession();
System.out.println("Session created"); System.out.println("Session created");
//start transaction // start transaction
tx = session.beginTransaction(); tx = session.beginTransaction();
//Save the Model object // Save the Model object
session.save(cart); session.save(cart);
session.save(item1); session.save(item1);
session.save(item2); session.save(item2);
//Commit transaction // Commit transaction
tx.commit(); tx.commit();
System.out.println("Cart ID="+cart.getId()); System.out.println("Cart ID=" + cart.getId());
System.out.println("item1 ID="+item1.getId()+", Foreign Key Cart ID="+item1.getCart().getId()); System.out.println("item1 ID=" + item1.getId() + ", Foreign Key Cart ID=" + item1.getCart().getId());
System.out.println("item2 ID="+item2.getId()+", Foreign Key Cart ID="+item1.getCart().getId()); System.out.println("item2 ID=" + item2.getId() + ", Foreign Key Cart ID=" + item1.getCart().getId());
}catch(Exception e){ } catch (Exception e) {
System.out.println("Exception occured. "+e.getMessage()); System.out.println("Exception occured. " + e.getMessage());
e.printStackTrace(); e.printStackTrace();
}finally{ } finally {
if(!sessionFactory.isClosed()){ if (!sessionFactory.isClosed()) {
System.out.println("Closing SessionFactory"); System.out.println("Closing SessionFactory");
sessionFactory.close(); sessionFactory.close();
} }
} }
} }
} }

77
spring-hibernate4/src/main/java/com/baeldung/hibernate/oneToMany/model/Cart.java
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@ -11,46 +11,53 @@ import javax.persistence.OneToMany;
import javax.persistence.Table; import javax.persistence.Table;
@Entity @Entity
@Table(name="CART") @Table(name = "CART")
public class Cart { public class Cart {
@Id @Id
@GeneratedValue(strategy=GenerationType.IDENTITY) @GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name="cart_id") @Column(name = "cart_id")
private long id; private long id;
@Column(name="total") @Column(name = "total")
private double total; private double total;
@Column(name="name") @Column(name = "name")
private String name; private String name;
@OneToMany(mappedBy="cart") @OneToMany(mappedBy = "cart")
private Set<Items> items; private Set<Items> items;
public long getId() { public long getId() {
return id; return id;
} }
public void setId(long id) {
this.id = id; public void setId(long id) {
} this.id = id;
public double getTotal() { }
return total;
} public double getTotal() {
public void setTotal(double total) { return total;
this.total = total; }
}
public String getName() { public void setTotal(double total) {
return name; this.total = total;
} }
public void setName(String name) {
this.name = name; public String getName() {
} return name;
public Set<Items> getItems() { }
return items;
} public void setName(String name) {
public void setItems(Set<Items> items) { this.name = name;
this.items = items; }
}
public Set<Items> getItems() {
return items;
}
public void setItems(Set<Items> items) {
this.items = items;
}
} }

115
spring-hibernate4/src/main/java/com/baeldung/hibernate/oneToMany/model/Items.java
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@ -10,65 +10,76 @@ import javax.persistence.ManyToOne;
import javax.persistence.Table; import javax.persistence.Table;
@Entity @Entity
@Table(name="ITEMS") @Table(name = "ITEMS")
public class Items { public class Items {
@Id @Id
@GeneratedValue(strategy=GenerationType.IDENTITY) @GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name="id") @Column(name = "id")
private long id; private long id;
@Column(name="item_id") @Column(name = "item_id")
private String itemId; private String itemId;
@Column(name="item_total") @Column(name = "item_total")
private double itemTotal; private double itemTotal;
@Column(name="quantity") @Column(name = "quantity")
private int quantity; private int quantity;
@ManyToOne @ManyToOne
@JoinColumn(name="cart_id", nullable=false) @JoinColumn(name = "cart_id", nullable = false)
private Cart cart; private Cart cart;
//Hibernate requires no-args constructor // Hibernate requires no-args constructor
public Items(){} public Items() {
}
public Items(String itemId, double total, int qty, Cart c){ public Items(String itemId, double total, int qty, Cart c) {
this.itemId=itemId; this.itemId = itemId;
this.itemTotal=total; this.itemTotal = total;
this.quantity=qty; this.quantity = qty;
this.cart=c; this.cart = c;
} }
public String getItemId() {
return itemId; public String getItemId() {
} return itemId;
public void setItemId(String itemId) { }
this.itemId = itemId;
} public void setItemId(String itemId) {
public double getItemTotal() { this.itemId = itemId;
return itemTotal; }
}
public void setItemTotal(double itemTotal) { public double getItemTotal() {
this.itemTotal = itemTotal; return itemTotal;
} }
public int getQuantity() {
return quantity; public void setItemTotal(double itemTotal) {
} this.itemTotal = itemTotal;
public void setQuantity(int quantity) { }
this.quantity = quantity;
} public int getQuantity() {
public Cart getCart() { return quantity;
return cart; }
}
public void setCart(Cart cart) { public void setQuantity(int quantity) {
this.cart = cart; this.quantity = quantity;
} }
public long getId() {
return id; public Cart getCart() {
} return cart;
public void setId(long id) { }
this.id = id;
} public void setCart(Cart cart) {
this.cart = cart;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
} }

69
spring-hibernate4/src/test/java/com/baeldung/hibernate/oneToMany/main/HibernateOneToManyAnnotationMainTest.java
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@ -1,12 +1,12 @@
package com.baeldung.hibernate.oneToMany.main; package com.baeldung.hibernate.oneToMany.main;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import com.baeldung.hibernate.oneToMany.model.Cart;
import com.baeldung.hibernate.oneToMany.model.Items;
import java.util.HashSet; import java.util.HashSet;
import java.util.Set; import java.util.Set;
import static org.hamcrest.Matchers.hasSize;
import org.hibernate.Session; import org.hibernate.Session;
import org.hibernate.SessionFactory; import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder; import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
@ -17,9 +17,9 @@ import org.junit.Assert;
import org.junit.Before; import org.junit.Before;
import org.junit.BeforeClass; import org.junit.BeforeClass;
import org.junit.Test; import org.junit.Test;
import static org.junit.Assert.*;
import org.junit.runner.RunWith; import com.baeldung.hibernate.oneToMany.model.Cart;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import com.baeldung.hibernate.oneToMany.model.Items;
//@RunWith(SpringJUnit4ClassRunner.class) //@RunWith(SpringJUnit4ClassRunner.class)
public class HibernateOneToManyAnnotationMainTest { public class HibernateOneToManyAnnotationMainTest {
@ -31,11 +31,11 @@ public class HibernateOneToManyAnnotationMainTest {
public HibernateOneToManyAnnotationMainTest() { public HibernateOneToManyAnnotationMainTest() {
} }
@BeforeClass @BeforeClass
public static void beforeTests() { public static void beforeTests() {
Configuration configuration = new Configuration().addAnnotatedClass(Cart.class).addAnnotatedClass(Items.class).setProperty("hibernate.dialect", HSQLDialect.class.getName()).setProperty("hibernate.connection.driver_class", org.hsqldb.jdbcDriver.class.getName()) Configuration configuration = new Configuration().addAnnotatedClass(Cart.class).addAnnotatedClass(Items.class).setProperty("hibernate.dialect", HSQLDialect.class.getName())
.setProperty("hibernate.connection.url", "jdbc:hsqldb:mem:test").setProperty("hibernate.connection.username", "sa").setProperty("hibernate.connection.password", "").setProperty("hibernate.hbm2ddl.auto", "update"); .setProperty("hibernate.connection.driver_class", org.hsqldb.jdbcDriver.class.getName()).setProperty("hibernate.connection.url", "jdbc:hsqldb:mem:test").setProperty("hibernate.connection.username", "sa")
.setProperty("hibernate.connection.password", "").setProperty("hibernate.hbm2ddl.auto", "update");
ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build(); ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties()).build();
sessionFactory = configuration.buildSessionFactory(serviceRegistry); sessionFactory = configuration.buildSessionFactory(serviceRegistry);
} }
@ -48,20 +48,16 @@ public class HibernateOneToManyAnnotationMainTest {
} }
@Test @Test
public void givenSession_checkIfDatabaseIsEmpty(){ public void givenSession_checkIfDatabaseIsEmpty() {
Cart cart = (Cart) session.get(Cart.class, new Long(1)); Cart cart = (Cart) session.get(Cart.class, new Long(1));
assertNull(cart); assertNull(cart);
} }
@Test @Test
public void testAddItemsToCart() { public void testAddItemsToCart() {
Cart cart = new Cart(); Cart cart = new Cart();
Set <Items> cartItems = new HashSet<>(); Set<Items> cartItems = new HashSet<>();
cartItems = cart.getItems(); cartItems = cart.getItems();
Assert.assertNull(cartItems); Assert.assertNull(cartItems);
Items item1 = new Items("I10", 10, 1, cart); Items item1 = new Items("I10", 10, 1, cart);
@ -74,29 +70,28 @@ public class HibernateOneToManyAnnotationMainTest {
} }
@Test @Test
public void givenSession_checkIfDatabaseIsPopulated_afterCommit(){ public void givenSession_checkIfDatabaseIsPopulated_afterCommit() {
Cart cart = new Cart(); Cart cart = new Cart();
Set <Items> cartItems = new HashSet<>(); Set<Items> cartItems = new HashSet<>();
cartItems = cart.getItems(); cartItems = cart.getItems();
Assert.assertNull(cartItems); Assert.assertNull(cartItems);
Items item1 = new Items(); Items item1 = new Items();
item1.setItemId("I10"); item1.setItemId("I10");
item1.setItemTotal(10); item1.setItemTotal(10);
item1.setQuantity(1); item1.setQuantity(1);
item1.setCart(cart); item1.setCart(cart);
assertNotNull(item1); assertNotNull(item1);
Set<Items> itemsSet = new HashSet<Items>(); Set<Items> itemsSet = new HashSet<Items>();
itemsSet.add(item1); itemsSet.add(item1);
assertNotNull(itemsSet); assertNotNull(itemsSet);
cart.setItems(itemsSet); cart.setItems(itemsSet);
assertNotNull(cart); assertNotNull(cart);
session.persist(cart); session.persist(cart);
session.getTransaction().commit(); session.getTransaction().commit();
cart = (Cart) session.get(Cart.class, new Long(1)); cart = (Cart) session.get(Cart.class, new Long(1));
assertNotNull(cart); assertNotNull(cart);
session.close(); session.close();
} }
} }