@EJB injection question

[Jazon Din]

Hello again.

I recently viewed duke' bank application which was developed using @EJB annotation.
Also, As i know @EJB injection can be done only in main class.

What if i don't want to write all the bussiness logic and components , events discription/ initializations in one class?

I mean, i want to separate them into 3 different classes like here:

http://java.sun.com/developer/technicalArticles/J2EE/appclient/

graphics.java , dataHandler, eventHandler and so on..

and not to do like here:

 
public class BankAdmin extends javax.swing.JFrame {
    @EJB
    private static CustomerController customerController;
    @EJB
    private static AccountController accountController;

...

private void removeCustomerFromAccountButtonMouseReleased(
        java.awt.event.MouseEvent evt) {                                                               

        if (this.accountIdTextField.getText() == null) {
            this.messageTextLabel.setText("Enter an account ID.");
        } else {
            try {
                accountController.removeCustomerFromAccount(
                        new Long(this.addCustomerToAccountTextField.getText()),
                        new Long(this.accountIdTextField.getText()));

                List<Long> customerIds = accountController.getCustomerIds(
                            new Long(this.accountIdTextField.getText()));
                this.customersTextField.setText(customerIds.toString());
            .....
    

QUESTION : how i can call remote session bean methods with @EJB from class different from main if it is not allowed? I tryed to make references to main class but failed with NullPointerException... ))


Should i use EJB 2.1 insted of 3.0 then?i am really confused.

[Ankit Garg]

You can use a JNDI lookup if injection isn't working...