How to import a simple JavaBean as a modelObject ?? -- Urgent

Question

Hi All,
     Taking leaves from the tutorial how to use EJB's in WebDynPro applications,   I am trying to use a SimpleJava bean as a modelObject  and instead of Using EJB's to persist data, I want to connect to the backend using the JDBC connection, So I have put on certain methods to getConnection() and one method to addUser( ) with in the JavaBean model class only.
Now, after extracting out the bean jar and importing it as a model, while trying to  execute the addUser( ) from the JavaBean in the Save Action
  wdContext.currentUserInfoBeanElement().modelObject().addUser( )
I get the error that the method modelObject is undefined for IPrivateResourceEntry.IUserInfoBeanElement( )
It would be really helpful If somebody could suggest how do I solve this ? or better still some error free step by step way to use a simple javabean with methods.So that I am able to persist data from the model class only!!
following is my JavaBean Model class
public class UserInfoBean
     private String empId;
     private String name;
     private String primarySkill;
     private String designation;
     private String emailId;
     private String deskPhone;
     private String mobile;
     private String workLocation;
     private String photoPath;
     private Connection connection;
     private ResultSet rs;
     public UserInfoBean()
     public void execute()
     public void addUser()
          Connection connection = null;
          try
               connection = getConnection();
               String query = null;
               PreparedStatement ps = connection.prepareStatement("insert into User (Employee_Id,Name,Phone1,Phone2,"+
                                                                 "Location,Designation,Technology,Email_Id,Photo_Path)"+
                                                                 "values(?,?,?,?,?,?,?,?,?)");
               try
                    ps.setString(1,getEmpId());
                    ps.setString(2,getName());
                    ps.setString(3,getDeskPhone());
                    ps.setString(4,getMobile());
                    ps.setString(5,getWorkLocation());
                    ps.setString(6,getDesignation());
                    ps.setString(7,getPrimarySkill());
                    ps.setString(8,getEmailId());
                    ps.setString(9,getPhotoPath());
                    ps.executeUpdate();
               catch(SQLException se)
                    se.printStackTrace();
               catch(Exception e)
                    e.printStackTrace();
               finally
                    ps.close();
          catch(Exception e)
               e.printStackTrace();
     public static Connection getConnection() throws SQLException, ClassNotFoundException
          Connection connection = null;
          Class.forName(IConstants.SQL_DRIVER);
          connection = DriverManager.getConnection(IConstants.SQL_URL,IConstants.SQL_UN,IConstants.SQL_PWD);
          return connection;     */     
          java.sql.Connection connection = null ;
          try
               InitialContext initialContext = new InitialContext();
               DataSource dataSource = (DataSource)initialContext.lookup("jdbc/aliasforradar");
               connection = dataSource.getConnection();
          catch (SQLException e)
               e.getMessage();                              
          catch (NamingException e) {
               e.getMessage();
          return connection;
@return
     public String getDesignation() {
          return designation;
@return
     public String getDeskPhone() {
          return deskPhone;
@return
     public String getEmailId() {
          return emailId;
@return
     public String getEmpId() {
          return empId;
@return
     public String getMobile() {
          return mobile;
@return
     public String getName() {
          return name;
@return
     public String getPhotoPath() {
          return photoPath;
@return
     public String getPrimarySkill() {
          return primarySkill;
@return
     public String getWorkLocation() {
          return workLocation;
@param string
     public void setDesignation(String string) {
          designation = string;
@param string
     public void setDeskPhone(String string) {
          deskPhone = string;
@param string
     public void setEmailId(String string) {
          emailId = string;
@param string
     public void setEmpId(String string) {
          empId = string;
@param string
     public void setMobile(String string) {
          mobile = string;
@param string
     public void setName(String string) {
          name = string;
@param string
     public void setPhotoPath(String string) {
          photoPath = string;
@param string
     public void setPrimarySkill(String string) {
          primarySkill = string;
@param string
     public void setWorkLocation(String string) {
          workLocation = string;

Answer 1

Did you type casted modelObject to UserInfoBean.
Like
((UserInfoBean)wdContext.currentUserInfoBeanElement().modelObject()).addUser();
Regards,
Ashwani