Help needed for entity bean

Question

i have this entity bean tat creates a new row in a mysql database... and using mysql query browser i see the record... but when using the bean to retrieve, it gives finderexception... i have to undeploy + redeploy to be able to retrieve the record... y is tat so?
how can i solve this..? i'm using jboss.

Answer 1

some parts of my code is listed as below...
private static final String insertStatement = "INSERT INTO cards (cardid, imageid, musicid, message, createdby, recipientEmail, createddate) VALUES (?, ?, ?, ?, ?, ?, ?)";
private static final String updateStatement = "UPDATE cards SET imageid=?, musicId=?, message=?, createdby=?, recipientEmail=?, createddate=? WHERE cardid=?";
private static final String deleteStatement = "DELETE FROM cards WHERE cardid=?";
private static final String findByPKStatement = "SELECT imageid, musicid, message, createdby, recipientEmail, createddate FROM cards WHERE cardid = ?";
public String ejbCreate(String cardID, String imageID, String musicID, String message, String createdBy, String recipientEmail, java.sql.Date createdTime) throws CreateException {
try {
getDatabaseConnection();
ps = connection.prepareStatement(insertStatement);
ps.setString(1, cardID);
ps.setString(2, imageID);
ps.setString(3, musicID);
ps.setString(4, message);
ps.setString(5, createdBy);
ps.setString(6, recipientEmail);
ps.setDate(7, createdTime);
if (ps.executeUpdate() != 1) {
throw new CreateException("Failed to insert new record");
} catch (SQLException e) {
throw new CreateException(e.getMessage());
} catch (Exception e) {
} finally {
try {
ps.close();
connection.close();
} catch (Exception e) { }
return cardID;
public String ejbFindByPrimaryKey(String cardID) throws FinderException {       
try {
getDatabaseConnection();
ps = connection.prepareStatement(findByPKStatement);
ps.setString(1, cardID);
ps.executeQuery();
ResultSet rs = ps.getResultSet();
if (rs.next()) {
this.cardID = cardID;
imageID = new String(rs.getString(1));
musicID = new String(rs.getString(2));
message = new String(rs.getString(3));
createdBy = new String(rs.getString(4));
recipientEmail = new String(rs.getString(5));
createdTime = rs.getDate(6);
} else {
throw new FinderException("Failed to select this Primary Key");
} catch (SQLException e) {
throw new FinderException(e.getMessage());
} catch (Exception e) {
} finally {
try {
ps.close();
connection.close();
} catch (Exception e) { }
return cardID;
private void getDatabaseConnection() throws NamingException, SQLException {
InitialContext ctx = new InitialContext();
String connectionURL = "jdbc:mysql://localhost:3306/card";
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(connectionURL, "root", "123");
catch (Exception e) {     }
}