Developing EJBs (continued)… Define Session Beans

import java.rmi.*;

import javax.ejb.*;

public class TellerBean implements SessionBean {

protected SessionContext _sessionContext;

public CheckingsHome checkingsHome;

public SavingsHome savingsHome;

// Business methods

public Checkings createCheckingsAccount(String name, double amount) throws Exception

{ return checkingsHome.create(name, amount); }

public Savings createSavingsAccount(String name, double amount) throws Exception

{ return savingsHome.create(name, amount); }

public void TransferMoney(double amount,int fromAccount,int toAccount) throws Exception

{ /*. . . Do something . . .*/ }

// Container managed beans return void - can have many create methods

public void ejbCreate() throws Exception {}

// these methods are required by the SessionBean interface

public void ejbActivate () throws RemoteException {}

public void ejbPassivate() throws RemoteException {}

public void ejbRemove () throws RemoteException, RemoveException {}

public void setSessionContext(SessionContext context) throws RemoteException {

this._sessionContext = context;

try {

checkingsHome = (CheckingsHome)Naming.lookup("Checkings");

savingsHome = (SavingsHome)Naming.lookup("Savings");

}catch (Exception ex) {System.out.println(e));

}