• POJO
• DOM4J
• MAP

 <property name="default_entity_mode">dom4j</property>

 <?xml version='1.0' encoding='utf-8'?> <!DOCTYPE hibernate-configuration
 PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
 "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
 <hibernate-configuration>
     <session-factory >
         <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
         <property name="hibernate.connection.url">jdbc:mysql://localhost/hiberDynamic</property>
         <property name="hibernate.connection.username">root</property>
         <property name="hibernate.connection.password">root</property>
         <property name="hibernate.c3p0.min_size">5</property>
         <property name="hibernate.c3p0.max_size">20</property>
         <property name="hibernate.c3p0.timeout">300</property>
         <property name="hibernate.c3p0.max_statements">50</property>
         <property name="hibernate.c3p0.idle_test_period">3000</property>
         <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
         <!--<property name="default_entity_mode">dom4j</property> -->
         <mapping resource="dynamic/Student.hbm.xml"/>
     </session-factory>
 </hibernate-configuration>

 Log4J configuration is another traditional one, as you see
 log4j.appender.stdout=org.apache.log4j.FileAppender
 log4j.appender.stdout.File=messages_dynamic.log
 log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
 log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n
 log4j.rootLogger=WARN, stdout
 

 <?xml version="1.0"?>
 <!DOCTYPE hibernate-mapping PUBLIC
 "-//Hibernate/Hibernate Mapping DTD//EN"
 "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
 
 <hibernate-mapping>
     <class  entity-name="Student" table="Student">
         <id name="id" column="STUDENT_ID" type="long">
             <generator class="native"/>
         </id>
         <property  name="name" type= "string"  column="STUDENT_NAME"/>
         <property name="lastName" type="string" column="STUDENT_LAST_NAME" />
     </class>
 </hibernate-mapping>
 

 
 package persistence;
 import org.hibernate.*;
 import org.hibernate.cfg.*;
 
 public class HibernateUtil {
   
     private static SessionFactory sessionFactory;
     static {
         try {
             sessionFactory = new Configuration().configure().buildSessionFactory();
        } catch (Throwable ex) {
             throw new ExceptionInInitializerError(ex);
         }
     }
    
     public static SessionFactory getSessionFactory() {
         return sessionFactory;
     }
     public static void shutdown() {
        
         getSessionFactory().close();
     }
 }
 

 package dynamic;
 import java.util.*;
 import org.hibernate.EntityMode;
 import org.hibernate.Query;
 import org.hibernate.Session;
 import org.hibernate.Transaction;
 import persistence.HibernateUtil;
 import org.dom4j.*;
 
 
 public class DynamicMapping {
    
     public static void main(String[] args) {
         Session session = HibernateUtil.getSessionFactory().openSession().getSession(EntityMode.DOM4J);
         Transaction tx = session.beginTransaction();
 Query deleteQuery = session.createQuery("delete from Student");
 deleteQuery.executeUpdate();
 tx.commit();
 
 tx = session.beginTransaction();
         //create some some student and save them
         {
             Element anStudent = DocumentHelper.createElement("Student");
             Element nameElement = DocumentHelper.createElement("name");
             nameElement.setText("Alice");
            
             Element lastNameElement = DocumentHelper.createElement("lastName");
             lastNameElement.setText("Cooper");
            
             anStudent.add(nameElement);
             anStudent.add(lastNameElement);
             session.save(anStudent);
         }
         {
             Element anStudent = DocumentHelper.createElement("Student");
             Element nameElement = DocumentHelper.createElement("name");
             nameElement.setText("Lea");
            
             Element lastNameElement = DocumentHelper.createElement("lastName");
             lastNameElement.setText("Connor");
            
             anStudent.add(nameElement);
             anStudent.add(lastNameElement);
             session.save(anStudent);
         }
        
         tx.commit();
         //List all student
         Query q = session.createQuery("from Student ");
        
         List students = q.list();
         org.dom4j.Element el = (org.dom4j.Element)students.get(0);
         System.out.println(el.getText());
         for (Iterator it = students.iterator(); it.hasNext();) {
             org.dom4j.Element student = (org.dom4j.Element)it.next();
            
            
             System.out.println("Printing an Student details: ");
            
             for ( Iterator i = student.elementIterator(); i.hasNext(); ) {
                 Element element = (Element) i.next();
                 System.out.println( element.getName()+":  "+ element.getText());
             }
         }
         //retrieve an student, update and save it
        
         q = session.createQuery("from Student where  name =:studentName ");
         q.setParameter("studentName", "Alice");
         Element alice = (Element) q.uniqueResult();
        
         alice.element("name").setText("No Alice any more");
         tx=session.beginTransaction();
         session.save(alice);
         tx.commit();
        
         session.close();
         HibernateUtil.shutdown();
     }
 }