<hibernate-mapping>
    <class name="com.testhibernate.Performer" table="PERFORMER">
.......
       <bag name="showList" cascade="all-delete-orphan" lazy="false" inverse="true">
            <key column ="PERFORMER" />
            <one-to-many class="com.testhibernate.Show" />
        </bag>
 
    </class>
</hibernate-mapping>

<hibernate-mapping>
    <class name="com.testhibernate.Show" table="SHOW">
....
        <many-to-one name="performer" class="com.testhibernate.Performer" not-null="true">
           <column name="PERFORMER"/>
        </many-to-one>
    </class>
</hibernate-mapping>

//Fetch mode
      session = sf.openSession();
      tx = session.beginTransaction();
      perf = (Performer) session.get(com.gauravcj.testhibernate.Performer.class, 1l);
      tx.commit();
      session.close();

// Detached mode
      
      System.out.println("Performer:"+perf.getName());
      
      System.out.println(perf.getShowList().get(0).getName());
// supposing only one show is taken out of a list of size five
      Show s = perf.getShowList().get(0);

//Since this data is recreated from HTTP Request a new list is created   
      List <Show> showList = new ArrayList <Show>();
      showList.add(s);
      perf.setShowList(showList);
      
//Update
      session = sf.openSession();
      tx = session.beginTransaction();
      session.saveOrUpdate(perf);
      tx.commit();
      session.close();

//Update
      session = sf.openSession();
      tx = session.beginTransaction();
      perf = (Performer)session.merge(perf);
      session.saveOrUpdate(perf);
      tx.commit();
      session.close();