ADF BC and direct database call from ActionListener Method

Question

Hi
I have an ADF BC application which generates a simple form . In the submit button I am calling a Java method which makes a direct database connection. The application hangs when the method does the executeUpdate() method
public void onSubmit(ActionEvent actionEvent) {
DBSequence prdSequenct=((DBSequence) resolveExpression("#{bindings.ProductId.inputValue}"));
          int productId = new Integer(prdSequenct.toString()).intValue();
          String productName = (String) resolveExpression("#{bindings.ProductName.inputValue}");
update(productName,productId);
public void update(String productName,int productId) {
String str ="update products set product_name=? where product_id =?";
Connection con=null;
PreparedStatement pstmt= null;
try {
con = new DatabaseConnection().getConnection();
pstmt= con.prepareStatement(str);
pstmt.setString(1, productName)
pstmt.setInt(2, productId)
pstmt.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}finally {
try
pstmt.close();
con.close();
}catch(SQLException sqle) {
sqle.printStackTrace();
when I submit the form the update() method hangs at executeUpdate();
If I run the update() method from a standalone java its works fine.Can anybody tell what could be the issue ?
Thanks
Suneesh
Edited by: Suneesh Raman on Aug 18, 2010 10:14 AM

Answer 1

I am using jDev Studio Edition Version 11.1.1.2.0 . Infact I need to call a PL/SQL api from the onSubmit method which I set in the action listener of submit button of the form.
My getConnection method is :
     public Connection getConnection() throws SQLException {
          DriverManager.registerDriver(new OracleDriver());
          Connection con =
          DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:XE","rme_pbkr", "rme_pbkr");
          OracleDataSource ods = new OracleDataSource();
          ods.setUser("rme_pbkr");
          ods.setPassword("rme_pbkr");
          ods.setURL("jdbc:oracle:thin:@localhost:1521:XE");
System.out.println("::: con = :::"+con);
          return ods.getConnection();
Does that mean we cannot make a db connection from the actionlistener implementation method ?
How to put the method in AM implementation class ? Just write a public void method there and call from onSubmit button actionlistener through some binding ?
Thanks
Suneesh