Using MS Access as backend in Webdynpro Application

Question

hi guys,
I am creating a application in webdynpro in which i want to use MS Access as Backend, so can u please tell how to use MS Access as backend.
What all needs to be done and where the database file needs to be stored etc. please give me all the details...
thanks in advance
Gaurav Makin

Answer 1

Hi Gaurav,
It is pretty easy to use the MSAccess as a  back end from the webdynpro applications. Take the driver as a JDBC-ODBBC driver and  creat the alias name for the  database  server  to use as a data source.Select the model as a Beanmodel  while creating a model in the Webdynpro explorer.
please  find the below code which will help you lot.
Please let me know if you need any further information.
package com.accenture.radar.project;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import javax.naming.InitialContext;
import javax.sql.DataSource;
@author suvarna.chittoor
To change the template for this generated type comment go to
Window>Preferences>Java>Code Generation>Code and Comments
public class ProjectBean {
     private String name;
     private String description;
     private String du;
     private String saveOrUpdate;
     static DataSource dataSource;
     private Connection connection;
     private ResultSet rs;
     private ArrayList duArrayList =new ArrayList();
     private ArrayList projectArrayList =new ArrayList();
     public ProjectBean()
          try
               //code to look up the datasource
               InitialContext initialContext = new InitialContext();
               dataSource = (DataSource)initialContext.lookup("jdbc/aliasforradar");
          catch(Exception e)
               System.err.print("Error Message"+e.getMessage());
     public static Connection getConnection() throws SQLException, ClassNotFoundException
          System.err.println("In Get Connection");
          java.sql.Connection connection = null ;
          try
               connection = dataSource.getConnection();
          catch (SQLException e)
               System.err.println(e.getMessage());     
               throw e;                         
          System.err.println("After getting Connection from the datasource");
          return connection;
     public void getDUInformation()throws SQLException, ClassNotFoundException
                    connection = getConnection();
                    PreparedStatement ps= connection.prepareStatement("select distinct name from du");
                    rs=ps.executeQuery();
                         while(rs.next())
                              duArrayList.add(rs.getString("name"));
                    ps.close();
                    connection.close();
     public void saveProjectDetails() throws SQLException, ClassNotFoundException
               Connection connection = null;
                         if(saveOrUpdate.equalsIgnoreCase("Save"))
                              connection = getConnection();
                              PreparedStatement ps =
                                   connection.prepareStatement(
                                        "insert into project values(?,?,?)");
                                   ps.setString(1, getName());
                                   ps.setString(2, getDescription());
                                   ps.setString(3, getDu());
                                   ps.executeUpdate();
                                   connection.close();
                                   ps.close();
                         else
                              connection = getConnection();
                              PreparedStatement ps =connection.prepareStatement("update project set du=?,description=? where name='"name.trim()"'");
                              ps.setString(1,du);
                              ps.setString(2,description);                         
                              ps.executeUpdate();                         
                              connection.close();
                              ps.close();
     public void getProjectDetails() throws SQLException, ClassNotFoundException
                         Connection connection = null;
                              connection = getConnection();
                              PreparedStatement ps=connection.prepareStatement("select name,description,du from project");
                              rs=ps.executeQuery();
                                   while(rs.next())
                                        Project_HelperClass proj= new Project_HelperClass();
                                        proj.setName(rs.getString("name"));
                                        proj.setDescription(rs.getString("Description"));
                                        proj.setDu(rs.getString("du"));
                                        projectArrayList.add(proj);
                                ps.close();
                                connection.close();
     public void getProjectInformation()
               throws SQLException, ClassNotFoundException {
               Connection connection = null;
               connection = getConnection();
               PreparedStatement ps =
               connection.prepareStatement("select description,du from project where name='"name"'");
               rs = ps.executeQuery();
                 while(rs.next())
                    this.description=rs.getString("description");
                    this.du=rs.getString("du");
                  connection.close();
                  ps.close();
@return
          public String getDescription() {
               return description;
     public void deleteProject() throws SQLException, ClassNotFoundException
         Connection connection = null;
          connection = getConnection();
          PreparedStatement ps=connection.prepareStatement("delete from sme_support where project = '"name"'");
          ps.executeUpdate();
          PreparedStatement ps1=connection.prepareStatement("delete from wbse where project = '"name"'");
          ps1.executeUpdate();
          PreparedStatement ps2=connection.prepareStatement("delete from supervisor where project = '"name"'");
          ps2.executeUpdate();
          PreparedStatement ps3=connection.prepareStatement("delete from du_lead where project = '"name"'");
          ps3.executeUpdate();
          PreparedStatement ps4=connection.prepareStatement("delete from project where name = '"name"'");
          ps4.executeUpdate();
          connection.close();
          ps.close();     
          ps1.close();
          ps2.close();
          ps3.close();
          ps4.close();          
@return
     public String getDu() {
          return du;
@return
          public ArrayList getDuArrayList() {
               return duArrayList;
@return
     public String getName() {
          return name;
@param string
          public void setDescription(String string) {
               description = string;
@param string
     public void setDu(String string) {
          du = string;
@param list
          public void setDuArrayList(ArrayList list) {
               duArrayList = list;
@param string
     public void setName(String string) {
          name = string;
@return
     public ArrayList getProjectArrayList() {
          return projectArrayList;
@param list
     public void setProjectArrayList(ArrayList list) {
          projectArrayList = list;
@return
     public String getSaveOrUpdate() {
          return saveOrUpdate;
@param string
     public void setSaveOrUpdate(String string) {
          saveOrUpdate = string;
Thanks and regards
Ratnakar reddy alwala