Hibernate - Cascade Save Or Update

 
import java.util.*;

import org.hibernate.*;
import org.hibernate.criterion.*;

public class SimpleRetrieveTest {
 
 
 public static void main(String[] args) {
 HibernateUtil.setup("create table EVENTS ( uid int, name VARCHAR, start_Date date, duration int, location_id int);");
 HibernateUtil.setup("create table locations ( uid int, name VARCHAR, street_address VARCHAR, city VARCHAR, state VARCHAR, zip_Code VARCHAR);");
 
 // hibernate code start
 Session session = HibernateUtil.currentSession();
 Transaction tx = session.beginTransaction();


 Location location = new Location();
 location.setName("USA");
 location.getAddress().setStreetAddress("St.");
 location.getAddress().setCity("Regina");
 location.getAddress().setState("SK");
 location.getAddress().setZipCode("22204");

 Event event = new Event();
 event.setName("Annual Meeting");
 event.setDuration(60);
 event.setStartDate(createDate(2004, 11, 1));
 event.setLocation(location);

// session.save(location);
 session.save(event);


 tx.commit();
 HibernateUtil.closeSession();

 HibernateUtil.sessionFactory.close();

 HibernateUtil.checkData("select * from events");
 HibernateUtil.checkData("select * from locations");
 // hibernate code end
 }
 private static Date createDate(int year, int month, int day) {
 Calendar calendar = Calendar.getInstance();
 calendar.set(year, month, day);
 return calendar.getTime();
 }
 
}

/////////////////////////////////////////////////////////////////////////

import java.io.Serializable;

public class Location implements Serializable{
 private Long id;
 private String name;
 private Address address = new Address();

 public Location(String name) { this.name = name;}
 public Location() { }

 public Long getId() { return id; }
 public void setId(Long id) { this.id = id; }

 public String getName() { return name; }
 public void setName(String name) { this.name = name; }

 public Address getAddress() { return address; }
 public void setAddress(Address address) { this.address = address;}
}

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
 "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
 "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping >
 <class name="Location" table="locations">
 <id name="id" column="uid" type="long">
 <generator/>
 </id>
 <property name="name" type="string"/>
 <component name="address" >
 <property name="streetAddress" column="street_address" type="string"/>
 <property name="city" type="string"/>
 <property name="state" type="string"/>
 <property name="zipCode" column="zip_code" type="string"/>
 </component>
 </class>
</hibernate-mapping>


<!DOCTYPE hibernate-configuration PUBLIC
 "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
 "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

 <session-factory>

 <!-- Database connection settings -->
 <property name="connection.driver_class">org.hsqldb.jdbcDriver</property>
 <property name="connection.url">jdbc:hsqldb:data/tutorial</property>
 <property name="connection.username">sa</property>
 <property name="connection.password"></property>

 <!-- JDBC connection pool (use the built-in) -->
 <property name="connection.pool_size">1</property>

 <!-- SQL dialect -->
 <property name="dialect">org.hibernate.dialect.HSQLDialect</property>

 <!-- Echo all executed SQL to stdout -->
 <property name="show_sql">true</property>

 <mapping resource="Event.hbm.xml"/>
 <mapping resource="Location.hbm.xml"/>
 </session-factory>

</hibernate-configuration>


import java.io.Serializable;
import java.util.Date;

public class Event implements Serializable {
 private Long id;
 private int duration;
 private String name;
 private Date startDate;
 private Location location;

 public Long getId() { return id; }
 public void setId(Long id) { this.id = id; }

 public String getName() { return name; }
 public void setName(String name) { this.name = name; }

 public Date getStartDate() { return startDate; }
 public void setStartDate(Date startDate) {
 this.startDate = startDate;
 }

 public int getDuration() { return duration; }
 public void setDuration(int duration) {
 this.duration = duration;
 }

 public Location getLocation() { return location; }
 public void setLocation(Location location) {
 this.location = location;
 }

 public Event() { }
 public Event(String name) { this.name = name; }

}



<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
 "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
 "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping >
 <class name="Event" table="events">
 <id name="id" column="uid" type="long">
 <generator/>
 </id>
 <property name="name" type="string"/>
 <property name="startDate" column="start_date"
 type="date"/>
 <property name="duration" type="integer"/>
 <many-to-one name="location" column="location_id" cascade="save-update" />
 </class>
</hibernate-mapping>


public class Address {
 private String streetAddress;
 private String city;
 private String state;
 private String zipCode;

 public String getStreetAddress() { return streetAddress; }
 public void setStreetAddress(String streetAddress) { this.streetAddress = streetAddress;}

 public String getCity() { return city; }
 public void setCity(String city) { this.city = city; }

 public String getState() { return state; }
 public void setState(String state) { this.state = state; }

 public String getZipCode() { return zipCode; }
 public void setZipCode(String zipCode) { this.zipCode = zipCode; }


 public void parse(String address) {
 String[] parts = address.split("\\.");
 setStreetAddress(parts[0] + ".");
 String[] remainingPart = parts[1].split(" ");
 setCity(remainingPart[1].replaceAll(",", ""));
 setState(remainingPart[2]);
 setZipCode(remainingPart[3]);
 }
}

 
 




			

			

				

					Hibernate - Simple Update