Java/Hibernate/Map File

Map For Class Member Variable

   <source lang="java">

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

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.rumit();
   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();
   }
 

}

///////////////////////////////////////////////////////////////////////// <?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 class="increment"/>
       </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" class="Location" cascade="save-update" />
   </class>

</hibernate-mapping>

///////////////////////////////////////////////////////////////////////// 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="Location" table="locations">
       <id name="id" column="uid" type="long">
           <generator class="increment"/>
       </id>
       <property name="name" type="string"/>
       <component name="address" class="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>

///////////////////////////////////////////////////////////////////////// import java.io.Serializable; /**

* Uses component address field
*/

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" encoding="utf-8"?> <!DOCTYPE hibernate-configuration PUBLIC

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

<hibernate-configuration>

   <session-factory>
       
       <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>
       
       <property name="connection.pool_size">1</property>
       
       <property name="dialect">org.hibernate.dialect.HSQLDialect</property>
       
       <property name="show_sql">true</property>
       <mapping resource="Event.hbm.xml"/>
       <mapping resource="Location.hbm.xml"/>
   </session-factory>

</hibernate-configuration>

      </source>
   
  
 
  

Reference Another Class in Map File

   <source lang="java">

///////////////////////////////////////////////////////////////////////// import java.util.Date; import org.hibernate.Session; import org.hibernate.Transaction; 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, address VARCHAR);");
   // hibernate code start
   Session session = HibernateUtil.currentSession();
   Transaction tx = session.beginTransaction();

       Location location = new Location();
       location.setName("USA");
       location.setAddress("Address");
       session.save(location);

       Event e= new Event();
       e.setId(11111L);
       e.setName("testSave");
       e.setStartDate(new Date());
       e.setLocation(location);
       e.setName("testSave");
   session.save(e);
   
   tx.rumit();
   HibernateUtil.closeSession();
   HibernateUtil.sessionFactory.close();
   // hibernate code end
   
 
   HibernateUtil.checkData("select * from events;");
   
 }

}

///////////////////////////////////////////////////////////////////////// <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC

   "-//Hibernate/Hibernate Mapping DTD 2.0//EN"
   "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping >

   <class name="Location" table="locations" lazy="true">
       <id name="id" column="uid" type="long">
           <generator class="native"/>
       </id>
       <property name="name" type="string"/>
       <property name="address" type="string"/>
   </class>

</hibernate-mapping>

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

public class Location {

   private Long id;
   private String name;
   private String address;
   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 String getAddress() {
       return address;
   }
   public void setAddress(String address) {
       this.address = address;
   }

}

///////////////////////////////////////////////////////////////////////// <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC

   "-//Hibernate/Hibernate Mapping DTD 2.0//EN"
   "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>

   <class name="Event" table="events">
       <id name="id" column="uid" type="long" unsaved-value="null">
           <generator class="assigned"/>
       </id>
       <property name="name" type="string" length="100"/>
       <property name="startDate" column="start_date"
                 type="date"/>
       <property name="duration" type="integer"/>
       <many-to-one name="location" column="location_id"
                    class="Location"/>
   </class>

</hibernate-mapping>

///////////////////////////////////////////////////////////////////////// import java.util.Date; public class Event {

 private Long id;
 private String name;
 private Date startDate;
 private int duration;
   private Location location;
 public void setId(Long id) {
   this.id = id;
 }
 
 public Long getId() {
   return 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;
   }

}

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

      </source>