@User.hbm.xml

<hibernate-mapping auto-import="true" default-lazy="false">   
    <class name="com.mimetics.beans.User" table="users">       
        <id name="email" type="java.lang.String" column="email">
            <generator class="native"/>
        </id>
        <property name="name" type="java.lang.String" column="name" not-null="true" length="45"/>
        <property name="surname" type="java.lang.String" column="surname" not-null="true" length="45"/>
        <property name="country" type="java.lang.String" column="country" not-null="true" length="255"/>
        <property name="nickname" type="java.lang.String" column="nickname" not-null="true" length="45"/>
        <property name="password" type="java.lang.String" column="password" not-null="true" length="12"/>
        <many-to-one name="userPreferences"  class="com.mimetics.beans.UserPreferences"
                     foreign-key="fk_user_user_preferences" column="preferences"  not-null="true"/>
        <many-to-one name="userType"  class="com.mimetics.beans.UserType"
                     foreign-key="fk_user_user_types" column="type"  not-null="true"/>
       
        <!-- Collection Sets -->
        <set name="uploadedMedia" inverse="true" lazy="true">
            <key not-null="true" column="owner"/>
            <one-to-many class="com.mimetics.beans.Media"/>
        </set>
       
        <!-- SENT & RECEIVED MESSAGES -->
        <set name="sentMessages" table="messages" lazy="true" >
            <key not-null="true" column="from"/>
            <one-to-many class="com.mimetics.beans.Message"/>
        </set>
        <set name="receivedMessages" table="messages" lazy="true">
            <key not-null="true" column="to"/>
            <one-to-many class="com.mimetics.beans.Message"/>
        </set>
        <!-- POSTED COMMENTS -->
        <set name="postedComments" lazy="true">
            <key not-null="true" column="email"/>
            <one-to-many class="com.mimetics.beans.Comment" />
        </set>
    </class>
</hibernate-mapping>

@Media.hbm.xml
<hibernate-mapping auto-import="true" default-lazy="false">
   
    <!-- Indicamos la clase a persistir y la tabla a la que corresponde-->
    <class name="com.mimetics.beans.Media" table="media">
       
        <!-- Especificamos la clave primaria -->
        <id name="mediaId" type="java.lang.Long" column="media_id">
            <generator class="native"/>
        </id>
       
        <!-- A continuación el resto de atributos -->
        <property name="fileName" type="java.lang.Long" column="filename" not-null="true"/>
        <property name="size" type="java.lang.Long" column="file_size" not-null="true"/>
        <property name="sizeMb" type="java.lang.Integer" column="file_size_mb" not-null="true"/>
        <property name="path" type="java.lang.String" column="path" not-null="true" />
        <property name="description" type="java.lang.String" column="description" not-null="false"/>
        <property name="views" type="java.lang.Long" column="views" not-null="true" />
        <property name="title" type="java.lang.String" column="title" not-null="false" />
        <property name="tags" type="java.lang.String" column="tags" not-null="false" />
        <property name="uploadDate" type="java.util.Date" column="upload_date" not-null="true"/>
       
        <many-to-one name="mediaType" class="com.mimetics.beans.MediaType"
                     foreign-key="fk_media_media_types" column="type" not-null="true" />
       
        <many-to-one name="owner" class="com.mimetics.beans.User"
                     foreign-key="fk_media_users" column="owner" not-null="true" insert="false" update="false"/>
                     
        <set name="receivedComments" lazy="true">
            <key not-null="true" column="media_id"/>
            <one-to-many class="com.mimetics.beans.Comment" />
        </set>
       
    </class>
</hibernate-mapping>

public class Manager implements IManager
{
    private Session session = null;
    /**
     * Creates a new instance of Manager
     */
    public Manager (Session session)
    {
        this.session = session;
    }
   
    public Session getSession ()
    {
        return this.session;
    }
    public  void begin ()
    {
       
        if (this.getSession () != null)
           this.getSession ().beginTransaction ();
    }
   
    public void commit ()
    {
        if (this.getSession () != null)
            this.getSession ().getTransaction ().commit ();
    }
   
    public void rollback ()
    {
       
        if (this.getSession () != null)
        {
            try
            {
                this.getSession ().getTransaction ().rollback ();
            }
            catch (HibernateException hbex2)
            {
                StringBuffer exception = new StringBuffer ("Couldn't do rollback(): ");
                exception.append (hbex2.toString ());
                System.out.println (exception.toString ());
            }
            try
            {
                this.getSession ().close ();
            }
            catch (HibernateException hbex3)
            {
                StringBuffer exception = new StringBuffer ("Error clossing session!: ");
                exception.append (hbex3.toString ());
                System.out.println (exception.toString ());
            }
        }
    }
   
    public void end ()
    {
        if (this.getSession () != null)
            session.close ();
       
    }
}

public class MediaManager extends Manager
{
   
    private Session session;
    /** Creates a new instance of MediaManager */
    public MediaManager (Session session)
    {
        super (session);
    }
    public Media getMediaById (Long mediaId )
    {
        super.begin ();
        Media media = (Media) this.session.get (Media.class, mediaId);
        super.end ();
        return media;
    }
    public Set getUserUploadedMedia ()
    {
        Set topTen = null;
        Query hbQuery = null;
        try
        {
            /*Try to do as many operations as possible in a single transaction*/
            String queryString = new String ("from User usr where usr.email='xabier.burgos@gmail.com'");
            super.begin ();
            hbQuery = super.getSession ().createQuery (queryString);
            User cybrid = (User) hbQuery.uniqueResult ();
            topTen = cybrid.getUploadedMedia ();
            super.commit ();   
        }
        catch (QueryException queryEx)
        {
            System.out.println ("Error executing query: ");
            queryEx.printStackTrace (System.out);
            super.rollback ();
        }
        finally
        {
            super.end ();
        }
        return topTen;
    }
}

org.hibernate.exception.GenericJDBCException: Could not execute JDBC batch update
   org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103)
   org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91)
   org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
   org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:249)
   org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:235)
   org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
   org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
   org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
   org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
   org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
   org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
   com.mimetics.managers.Manager.commit(Manager.java:43)
   com.mimetics.managers.MediaManager.getTopTenMedia(MediaManager.java:50)
   com.mimetics.actions.Setup.execute(Setup.java:53)
   org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:53)
   org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:64)
   org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:48)
   org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
   org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
   org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
   org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:280)
   org.apache.struts.action.ActionServlet.process(ActionServlet.java:1858)
   org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:446)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
   org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)

**** Initilizing HibernatePlugIn   **********
Using route to config file: file:/C:/Documents%20and%20Settings/Xabi/mediavault/build/web/WEB-INF/classes/hibernate.cfg.xml
AbandonedObjectPool is used (org.apache.tomcat.dbcp.dbcp.AbandonedObjectPool@954549)
   LogAbandoned: false
   RemoveAbandoned: true
   RemoveAbandonedTimeout: 300
*************************************
Hibernate: select user0_.email as email0_, user0_.name as name0_, user0_.surname as surname0_, user0_.country as country0_, user0_.nickname as nickname0_, user0_.password as password0_, user0_.preferences as preferen7_0_, user0_.type as type0_ from users user0_ where user0_.email='xabier.burgos@gmail.com'
Hibernate: select userprefer0_.preference_id as preference1_3_0_, userprefer0_.toolbar_order as toolbar2_3_0_, userprefer0_.rbar_order as rbar3_3_0_, userprefer0_.show_comments as show4_3_0_, userprefer0_.show_email as show5_3_0_ from user_preferences userprefer0_ where userprefer0_.preference_id=?
Hibernate: select usertype0_.type_id as type1_1_1_, usertype0_.type_name as type2_1_1_, usertype0_.privileges as privileges1_1_, userprivil1_.privilege_id as privilege1_2_0_, userprivil1_.convert_video as convert2_2_0_, userprivil1_.convert_audio as convert3_2_0_, userprivil1_.convert_image as convert4_2_0_, userprivil1_.conserve_files as conserve5_2_0_, userprivil1_.max_fsize as max6_2_0_, userprivil1_.can_send_msg as can7_2_0_ from user_types usertype0_ left outer join user_privileges userprivil1_ on usertype0_.privileges=userprivil1_.privilege_id where usertype0_.type_id=?
Hibernate: update user_privileges set convert_video=?, convert_audio=?, convert_image=?, conserve_files=?, max_fsize=?, can_send_msg=? where privilege_id=?

public class Setup extends Action
{
    private Set topTen = null;
    private SessionFactory sFactory = null;
   
    public ActionForward execute (ActionMapping mapping, ActionForm  form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception
    {
        ServletContext sCtx = request.getSession ().getServletContext ();
        sFactory = (SessionFactory) sCtx.getAttribute (HibernatePlugIn.SESSION_FACTORY_KEY);
        sFactory.getCurrentSession ().beginTransaction ();
     
        User cybrid = (User) sFactory.getCurrentSession ().createQuery ("from User usr where usr.email='xabier.burgos@gmail.com'").uniqueResult ();
        topTen = cybrid.getUploadedMedia ();
       
        sFactory.getCurrentSession ().getTransaction ().commit ();
       
        return (mapping.findForward ("setup.successfull"));
    }
}

org.hibernate.exception.GenericJDBCException: Could not execute JDBC batch update

Hibernate: select user0_.email as email0_, user0_.name as name0_, user0_.surname as surname0_, user0_.country as country0_, user0_.nickname as nickname0_, user0_.password as password0_, user0_.preferences as preferen7_0_, user0_.type as type0_ from users user0_ where user0_.email='xabier.burgos@gmail.com'
Hibernate: select userprefer0_.preference_id as preference1_3_0_, userprefer0_.toolbar_order as toolbar2_3_0_, userprefer0_.rbar_order as rbar3_3_0_, userprefer0_.show_comments as show4_3_0_, userprefer0_.show_email as show5_3_0_ from user_preferences userprefer0_ where userprefer0_.preference_id=?
Hibernate: select usertype0_.type_id as type1_1_1_, usertype0_.type_name as type2_1_1_, usertype0_.privileges as privileges1_1_, userprivil1_.privilege_id as privilege1_2_0_, userprivil1_.convert_video as convert2_2_0_, userprivil1_.convert_audio as convert3_2_0_, userprivil1_.convert_image as convert4_2_0_, userprivil1_.conserve_files as conserve5_2_0_, userprivil1_.max_fsize as max6_2_0_, userprivil1_.can_send_msg as can7_2_0_ from user_types usertype0_ left outer join user_privileges userprivil1_ on usertype0_.privileges=userprivil1_.privilege_id where usertype0_.type_id=?
Hibernate: update user_privileges set convert_video=?, convert_audio=?, convert_image=?, conserve_files=?, max_fsize=?, can_send_msg=? where privilege_id=?

Hibernate: select user0_.email as email0_, user0_.name as name0_, user0_.surname as surname0_, user0_.country as country0_, user0_.nickname as nickname0_, user0_.password as password0_, user0_.preferences as preferen7_0_, user0_.type as type0_ from users user0_ where user0_.email='xabier.burgos@gmail.com'

<hibernate-mapping auto-import="true" default-lazy="false">
   
    <!-- Indicamos la clase a persistir y la tabla a la que corresponde-->
    <class name="com.mimetics.beans.UserType" table="user_types">
       
        <!-- Especificamos la clave primaria -->
        <id name="userTypeId" type="integer" column="type_id">
            <generator class="native"/>
        </id>
       
        <!-- A continuación el resto de atributos -->
        <property name="userTypeName" type="string" column="type_name" not-null="true"/>
        <many-to-one name="userPrivileges" not-null="true" class="com.mimetics.beans.UserPrivileges"
                     foreign-key="FK_user_types_user_privileges" column="privileges" unique="true"/>
    </class>
</hibernate-mapping>

<hibernate-mapping auto-import="true" default-lazy="false">
   
    <!-- Indicamos la clase a persistir y la tabla a la que corresponde-->
    <class name="com.mimetics.beans.UserPrivileges" table="user_privileges">
       
        <!-- Especificamos la clave primaria -->
        <id name="privilegeId" type="integer" column="privilege_id">
            <generator class="native"/>
        </id>
       
        <!-- A continuación el resto de atributos -->
        <property name="convertVideo" type="boolean" column="convert_video" not-null="true"/>
        <property name="convertAudio" type="boolean" column="convert_audio" not-null="true"/>
        <property name="convertImage" type="boolean" column="convert_image" not-null="true"/>
        <property name="conserveFiles" type="boolean" column="conserve_files" not-null="true"/>
        <property name="maxFSize" type="long" column="max_fsize" not-null="true" />
        <property name="canSendMsg" type="boolean" column="can_send_msg"/>
    </class>
</hibernate-mapping>

<hibernate-mapping auto-import="true" default-lazy="false"> 
    <class name="com.mimetics.beans.UserPreferences" table="user_preferences">       
        <id name="userPreferencesId" type="long" column="preference_id">
            <generator class="native"/>
        </id>
        <property name="toolboxOrder" type="string" not-null="true" column="toolbar_order"/>
        <property name="rbarOrder" type="string" not-null="true" column="rbar_order"/>
        <property name="showComments" type="boolean" not-null="true" column="show_comments"/>
        <property name="showEmail" type="boolean" not-null="true" column="show_email"/>
    </class>
</hibernate-mapping>

public class HibernatePlugIn implements PlugIn
{
    /**
     * IMPORTANT NOTE!
     * For this to work the hibernate configuration file
     * MUST be located in /WEB-INF/classes or
     * you'll get a null pointer exception and neither
     * Hibernate or Struts will load.
     */
    private String _configFilePath = "/hibernate.cfg.xml";
   
    /**
     * the key under which the <code>SessionFactory</code> instance is stored
     * in the <code>ServletContext</code>.
     */
    public static final String SESSION_FACTORY_KEY
            = SessionFactory.class.getName ();
   
    private SessionFactory _factory = null;
   
    public void destroy ()
    {
        try
        {
            _factory.close ();
        }
        catch(HibernateException e)
        {
            System.out.println ("Unable to close Hibernate Session Factory: " + e.getMessage ());
        }
       
    }
   
    public void init (ActionServlet servlet, ModuleConfig config) throws ServletException
    {
        System.out.println ("*************************************");
        System.out.println ("**** Initilizing HibernatePlugIn   **********");
        Configuration configuration = null;
        URL configFileURL = null;
        ServletContext context = null;
       
        try
        {
            configFileURL = HibernatePlugIn.class.getResource (_configFilePath);
            System.out.println ("Using route to config file: "+configFileURL.toString ());
            context = servlet.getServletContext ();
           
            configuration = (new Configuration ()).configure (configFileURL);
            _factory = configuration.buildSessionFactory ();
            //Set the factory into session
            context.setAttribute (SESSION_FACTORY_KEY, _factory);
           
        }
        catch(HibernateException e)
        {
            System.out.println ("Error while initializing hibernate: ");
            e.printStackTrace (System.out);
        }
        catch(Exception ex)
        {
            System.out.println ("Something unexpected happened...");
            ex.printStackTrace (System.out);
        }
        System.out.println ("*************************************");
       
    }
   
    /**
     * Setter for property configFilePath.
     * @param configFilePath New value of property configFilePath.
     */
    public void setConfigFilePath (String configFilePath)
    {
        if ((configFilePath == null) || (configFilePath.trim ().length () == 0))
        {
            throw new IllegalArgumentException (
                    "configFilePath cannot be blank or null.");
        }
       
        System.out.println ("Setting 'configFilePath' to '"  + configFilePath + "'...");
        _configFilePath = configFilePath;
    }
   
   
/*(SessionFactory) servletContext.getAttribute
(HibernatePlugIn.SESSION_FACTORY_KEY);
*/
   
}

<hibernate-configuration>
    <session-factory>
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.datasource">java:/comp/env/jdbc/mediavault</property>
        <property name="hibernate.connection.pool_size">20</property>
        <property name="show_sql">true</property>
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
        <property name="hibernate.hbm2ddl.auto">update</property>
        <property name="current_session_context_class">thread</property>
        <!-- List of mapping files go here -->
        <mapping resource="com/mimetics/beans/User.hbm.xml"/>
        <mapping resource="com/mimetics/beans/UserType.hbm.xml"/>
        <mapping resource="com/mimetics/beans/UserPrivileges.hbm.xml"/>
        <mapping resource="com/mimetics/beans/UserPreferences.hbm.xml"/>
        <mapping resource="com/mimetics/beans/Media.hbm.xml"/>
        <mapping resource="com/mimetics/beans/MediaType.hbm.xml"/>
        <mapping resource="com/mimetics/beans/Comment.hbm.xml"/>
        <mapping resource="com/mimetics/beans/Message.hbm.xml"/>
        <mapping resource="com/mimetics/beans/MessageType.hbm.xml"/>
    </session-factory>
</hibernate-configuration>

public class Setup extends Action
{
    private Set topTen = null;
    private SessionFactory sFactory = null;
   
    public ActionForward execute (ActionMapping mapping, ActionForm  form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception
    {
        ServletContext sCtx = request.getSession ().getServletContext ();
        sFactory = (SessionFactory) sCtx.getAttribute (HibernatePlugIn.SESSION_FACTORY_KEY);
        sFactory.getCurrentSession().clear(); // make sure the current session is totally empty before proceeding
        sFactory.getCurrentSession ().beginTransaction ();
     
        User cybrid = (User) sFactory.getCurrentSession ().createQuery ("from User usr where usr.email='xabier.burgos@gmail.com'").uniqueResult ();
        topTen = cybrid.getUploadedMedia ();
       
        sFactory.getCurrentSession ().getTransaction ().commit ();
       
        return (mapping.findForward ("setup.successfull"));
    }
}

sFactory.getCurrentSession().clear();

org.hibernate.HibernateException: clear is not valid without active transaction
   org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:297)
   $Proxy0.clear(Unknown Source)
   com.mimetics.actions.Setup.execute(Setup.java:44)
   org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:53)
   org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:64)
   org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:48)
   org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
   org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)
   org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)
   org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:280)
   org.apache.struts.action.ActionServlet.process(ActionServlet.java:1858)
   org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:446)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
   org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)

sFactory.getCurrentSession().clear();

org.hibernate.exception.GenericJDBCException: Could not execute JDBC batch update

public class User implements Serializable
{
    private String email;       // Email address (used as primary key)
    private String name;        // Real name
    private String surname;     // Real surname
    private String password;    // Password
    private UserType userType;      // Type
    private UserPreferences userPreferences; //User defined preferences
    private String nickname;        // Nick, used to login
    private String country;     // Country
    private Long favorites;
    private Long groups;
    private Set uploadedMedia = new HashSet();
    private Set sentMessages = new HashSet();
    private Set receivedMessages = new HashSet();
    private Set postedComments = new HashSet();
   
    /** Creates a new instance of user */
    public User ()
    {
    }
    public User (String name, String surname, String password, UserType utype,
            UserPreferences upreferences, String nick, String country)
    {
        this.name = name;
        this.surname = surname;
        this.password = password;
        this.userType = utype;
        this.nickname = nick;
        this.country = country;
        this.email = email;
        this.userPreferences = upreferences;
        this.postedComments = new HashSet();
        this.receivedMessages = new HashSet();
        this.sentMessages = new HashSet();
        this.uploadedMedia = new HashSet();
    }
    //GET
    public String getName ()
    {
        return this.name;
    }
    public String getSurname ()
    {
        return this.surname;
    }
    public String getPassword ()
    {
        return this.password;
    }
    public UserType getUserType ()
    {
        return this.userType;
    }
    public String getNickname ()
    {
        return this.nickname;
    }
    public String getCountry ()
    {
        return this.country;
    }
    public String getEmail ()
    {
        return this.email;
    }
    public UserPreferences getUserPreferences ()
    {
        return this.userPreferences;
    }
    public Set getUploadedMedia ()
    {
        return this.uploadedMedia;
    }
    public Set getSentMessages ()
    {
        return this.sentMessages;
    }
    public Set getReceivedMessages ()
    {
        return this.receivedMessages;
    }
    public Set getPostedComments ()
    {
        return this.postedComments;
    }
    //SET
    public void setName (String name)
    {
        this.name = name;
    }
    public void setSurname (String surname)
    {
        this.surname = surname;
    }
    public void setPassword (String password)
    {
        this.password = password;
    }
    public void setUserType (UserType utype)
    {
        this.userType = utype;
    }
    public void setNickname (String nick)
    {
        this.nickname = nick;
    }
    public void setCountry (String country)
    {
        this.country = country;
    }
    public void setEmail (String email)
    {
        this.email = email;
    }
    public void setUserPreferences (UserPreferences upreferences)
    {
        this.userPreferences = upreferences;
    }
    public void setUploadedMedia (Set uploadedMedia)
    {
        this.uploadedMedia = uploadedMedia;
    }
    public void setSentMessages (Set sentMessages)
    {
        this.sentMessages = sentMessages;
    }
    public void setReceivedMessages (Set receivedMessages)
    {
        this.receivedMessages = receivedMessages;
    }
    public void setPostedComments (Set postedComments)
    {
        this.postedComments = postedComments;
    }
}

package com.mimetics.beans;

/**
*
* @author cybrid
*/
public class UserType
{
      private Integer userTypeId;
      private String userTypeName;
      private UserPrivileges userPrivileges;
     
      /** Creates a new instance of UserType */
      public UserType ()
      {
      }
      public UserType (String userTypeName, UserPrivileges userPrivileges)
      {
            this.userTypeName = userTypeName;
            this.userPrivileges = userPrivileges;
      }
      //GET
      public Integer getUserTypeId ()
      {
            return this.userTypeId;
      }
      public String getUserTypeName ()
      {
            return this.userTypeName;
      }
      public UserPrivileges getUserPrivileges()
      {
          return this.userPrivileges;
      }
      //SET
      public void setUserTypeId (Integer userTypeId)
      {
            this.userTypeId = userTypeId;
      }
      public void setUserTypeName (String userTypeName)
      {
            this.userTypeName = userTypeName;
      }
      public void setUserPrivileges (UserPrivileges userPrivileges)
      {
          this.userPrivileges = userPrivileges;
      }
}

public class UserPrivileges
{
    private Integer privilegeId;        // Identifier
    private Boolean convertVideo;        // Should user's files be converted?
    private Boolean convertAudio;
    private Boolean convertImage;
    private Boolean conserveFiles;
    private Long maxFSize;       // Maximum file size allowed to upload
    private Boolean canSendMsg;   // Can user send messages to other members?
   
    /** Creates a new instance of privileges */
    public UserPrivileges ()
    {
       
    }
   
    public UserPrivileges (Boolean convertVideo, Boolean convertAudio, Boolean convertImage,
            Boolean conserveFiles, Long maxFSize, Boolean canSendMsg)
    {
        this.convertAudio = convertAudio;
        this.convertVideo = convertVideo;
        this.convertImage = convertImage;
        this.conserveFiles = conserveFiles;
        this.maxFSize = maxFSize;
        this.canSendMsg = canSendMsg;
    }
    //GET
    public Integer  getPrivilegeId ()
    {
        return this.privilegeId;
    }
    public Boolean getConvertAudio ()
    {
        return this.convertAudio;
    }
    public Boolean getConvertVideo ()
    {
        return this.convertVideo;
    }
    public Boolean getConvertImage ()
    {
        return this.convertImage;
    }
    public Boolean getConserveFiles ()
    {
        return this.conserveFiles;
    }
    public Long  getMaxFSize ()
    {
        return this.maxFSize;
    }
    public Boolean getCanSendMsg ()
    {
        return this.canSendMsg;
    }
    //SET
    public void setPrivilegeId (Integer privilegeId)
    {
        this.privilegeId = privilegeId;
    }
    public void setConvertAudio (Boolean convertAudio)
    {
        this.convertAudio = convertAudio;
    }
    public void setConvertVideo (Boolean convertVideo)
    {
        this.convertVideo = convertVideo;
    }
    public void setConvertImage (Boolean convertImage)
    {
        this.convertImage = convertImage;
    }
    public void setConserveFiles (Boolean conserveFiles)
    {
        this.conserveFiles = conserveFiles;
    }
    public void setMaxFSize (Long maxFSize)
    {
        this.maxFSize = maxFSize;
    }
    public void setCanSendMsg (Boolean CanSendMsg)
    {
        this.canSendMsg = canSendMsg;
    }
}

package com.mimetics.beans;
/**
*
* @author cybrid
*/
public class UserPreferences
{
    private Long userPreferencesId;
    private String toolboxOrder;
    private String rbarOrder;
    private Boolean showEmail;
    private Boolean showComments;
   
    /** Creates a new instance of UserPreferences */
    public UserPreferences ()
    {
    }
    public UserPreferences (String toolboxOrder, String rbarOrder, Boolean showEmail, Boolean showComments)
    {
        this.toolboxOrder = toolboxOrder;
        this.rbarOrder = rbarOrder;
        this.showComments = showComments;
        this.showEmail = showEmail;
    }
   
    //GET
    public Long getUserPreferencesId()
    {
        return this.userPreferencesId;
    }
    public String getToolboxOrder ()
    {
        return this.toolboxOrder;
    }
    public String getRbarOrder ()
    {
        return this.rbarOrder;
    }
    public Boolean getShowComments ()
    {
        return this.showComments;
    }
    public boolean getShowEmail ()
    {
        return this.showEmail;
    }
    //SET
    public void setUserPreferencesId (Long userPreferencesId)
    {
        this.userPreferencesId = userPreferencesId;
    }
    public void setToolboxOrder (String toolboxOrder)
    {
        this.toolboxOrder = toolboxOrder;
    }
    public void setRbarOrder (String rbarOrder)
    {
        this.rbarOrder = rbarOrder;
    }
    public void setShowComments (Boolean showComments)
    {
        this.showComments = showComments;
    }
    public void setShowEmail (Boolean showEmail)
    {
        this.showEmail = showEmail;
    }
}

<hibernate-mapping auto-import="true" default-lazy="false">   
    <class name="com.mimetics.beans.User" table="users">       
        <id name="email" type="string" column="email">
            <generator class="native"/>
        </id>
        <property name="name" type="string" column="name" not-null="true" length="45"/>
        <property name="surname" type="string" column="surname" not-null="true" length="45"/>
        <property name="country" type="string" column="country" not-null="true" length="255"/>
        <property name="nickname" type="string" column="nickname" not-null="true" length="45"/>
        <property name="password" type="string" column="password" not-null="true" length="12"/>
       
        <many-to-one name="userPreferences"  class="com.mimetics.beans.UserPreferences"
                     foreign-key="fk_user_user_preferences" column="preferences"  not-null="true" unique="true"/>
                     
        <many-to-one name="userType"  class="com.mimetics.beans.UserType"
                     foreign-key="fk_user_user_types" column="type"  not-null="true"/>
       
        <!-- Collection Sets -->
        <set name="uploadedMedia" lazy="true" inverse="true">
            <key  column="owner"/>
            <one-to-many class="com.mimetics.beans.Media"/>
        </set>
       
        <!-- SENT & RECEIVED MESSAGES -->
        <set name="sentMessages" table="messages" lazy="true" >
            <key not-null="true" column="from"/>
            <one-to-many class="com.mimetics.beans.Message"/>
        </set>
        <set name="receivedMessages" table="messages" lazy="true">
            <key not-null="true" column="to"/>
            <one-to-many class="com.mimetics.beans.Message"/>
        </set>
        <!-- POSTED COMMENTS -->
        <set name="postedComments" lazy="true">
            <key not-null="true" column="email"/>
            <one-to-many class="com.mimetics.beans.Comment" />
        </set>
    </class>
</hibernate-mapping>

topTen = cybrid.getUploadedMedia ();

        this.postedComments = new HashSet();
        this.receivedMessages = new HashSet();
        this.sentMessages = new HashSet();
        this.uploadedMedia = new HashSet();

<hibernate-mapping auto-import="true" default-lazy="false">
   
    <!-- Indicamos la clase a persistir y la tabla a la que corresponde-->
    <class name="com.mimetics.beans.UserPrivileges" table="user_privileges">
       
        <!-- Especificamos la clave primaria -->
        <id name="privilegeId" type="integer" column="privilege_id">
            <generator class="native"/>
        </id>
       
        <!-- A continuación el resto de atributos -->
        <property name="convertVideo" type="java.lang.Boolean" column="convert_video" not-null="true"/>
        <property name="convertAudio" type="java.lang.Boolean" column="convert_audio" not-null="true"/>
        <property name="convertImage" type="java.lang.Boolean" column="convert_image" not-null="true"/>
        <property name="conserveFiles" type="java.lang.Boolean" column="conserve_files" not-null="true"/>
        <property name="maxFSize" type="java.lang.Long" column="max_fsize" not-null="true" />
        <property name="canSendMsg" type="java.lang.Boolean" column="can_send_msg"/>
    </class>
</hibernate-mapping>