File: Main.java
import java.io.Serializable;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.event.SaveOrUpdateEvent;
import org.hibernate.event.def.DefaultSaveOrUpdateEventListener;
public class Main {
public static void main(String[] args) throws Exception {
HibernateUtil hibernateUtil = new HibernateUtil();
hibernateUtil
.executeSQLCommand("create table Product(id int, name varchar, description varchar, price decimal(6,2), supplierid int)");
hibernateUtil.executeSQLCommand("create table Supplier (id int , name varchar)");
hibernateUtil
.executeSQLCommand("create table Software(id int, name varchar, description varchar, price decimal(6,2), supplierid int, version varchar)");
hibernateUtil.getConfiguration().setListener("save-update", new MySaveOrUpdateEventListener());
Session session = hibernateUtil.getConfiguration().buildSessionFactory().openSession();
Supplier superCorp = new Supplier();
superCorp.setName("Supplier1");
session.save(superCorp);
Supplier megaInc = new Supplier();
megaInc.setName("Supplier2");
session.save(megaInc);
Product mouse = new Product("Product1", "first product", 20.0);
mouse.setSupplier(superCorp);
superCorp.getProducts().add(mouse);
session.flush();
Product mouse2 = new Product("Product2", "second product", 22.0);
mouse2.setSupplier(superCorp);
superCorp.getProducts().add(mouse2);
Product keyboard = new Product("Product3", "third product", 30.0);
keyboard.setSupplier(megaInc);
megaInc.getProducts().add(keyboard);
Software webBrowser = new Software("Web Browser", "new browser", 75.0, "2.0");
webBrowser.setSupplier(superCorp);
superCorp.getProducts().add(webBrowser);
Software email = new Software("Email", "email client", 49.99, "4.1 Edition");
email.setSupplier(megaInc);
megaInc.getProducts().add(email);
session.flush();
session.close();
hibernateUtil.checkData("select * from Product");
hibernateUtil.checkData("select * from Software");
hibernateUtil.checkData("select * from Supplier");
}
}
class MySaveOrUpdateEventListener extends DefaultSaveOrUpdateEventListener {
public void onSaveOrUpdate(SaveOrUpdateEvent event) {
System.out.println(event.getEntity());
super.onSaveOrUpdate(event);
}
}
File: Supplier.java
import java.util.ArrayList;
import java.util.List;
public class Supplier
{
private int id;
private String name;
private List products = new ArrayList();
public int getId()
{
return id;
}
public void setId(int id)
{
this.id = id;
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public List getProducts()
{
return products;
}
public void setProducts(List products)
{
this.products = products;
}
}
File: Supplier.hbm.xml
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-mapping
PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="Supplier" >
<id name="id" type="int">
<generator class="increment"/>
</id>
<property name="name" type="string"/>
<bag name="products" inverse="true" cascade="all,delete-orphan">
<key column="supplierId"/>
<one-to-many class="Product"/>
</bag>
</class>
</hibernate-mapping>
File: Software.java
public class Software extends Product
{
private String version;
public Software()
{
super();
}
public Software(String name, String description, double price, String version)
{
super(name, description, price);
this.setVersion(version);
}
public String getVersion()
{
return version;
}
public void setVersion(String version)
{
this.version = version;
}
}
File: Software.hbm.xml
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-mapping
PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<joined-subclass name="Software" extends="Product">
<key column="Id"/>
<property name="version" type="string"/>
</joined-subclass>
</hibernate-mapping>
File: Product.java
public class Product
{
private int id;
private Supplier supplier;
private String name;
private String description;
private double price;
public Product()
{
super();
}
public Product(String name, String description, double price)
{
super();
this.name = name;
this.description = description;
this.price = price;
}
public String getDescription()
{
return description;
}
public void setDescription(String description)
{
this.description = description;
}
public int getId()
{
return id;
}
public void setId(int id)
{
this.id = id;
}
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public Supplier getSupplier()
{
return supplier;
}
public void setSupplier(Supplier supplier)
{
this.supplier = supplier;
}
public double getPrice()
{
return price;
}
public void setPrice(double price)
{
this.price = price;
}
}
File: Product.cfg.xml
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-mapping
PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="Product">
<id name="id" type="int">
<generator class="increment"/>
</id>
<property name="name" type="string"/>
<property name="description" type="string"/>
<property name="price" type="double"/>
<many-to-one name="supplier" class="Supplier" column="supplierId"/>
</class>
<query name="Product.HQLpricing">
select product.price from Product product where product.price = 25.0
</query>
<sql-query name="Product.SQLpricing">
<return-scalar column="price" type="double"/>
select product.price from Product as product where product.price = 25.0
</sql-query>
</hibernate-mapping>
Download: Hibernatesave-updateEvent.zip( 4,866 k)