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Diffstat (limited to 'Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/entity/intro/Client.java')
| -rw-r--r-- | Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/entity/intro/Client.java | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/entity/intro/Client.java b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/entity/intro/Client.java new file mode 100644 index 0000000..16863fc --- /dev/null +++ b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/entity/intro/Client.java @@ -0,0 +1 @@ +package examples.entity.intro;
import java.util.Iterator;
import java.util.List;
import javax.naming.*;
/**
* Sample client code for an Account entity that is accessed through
* a stateless session bean.
*/
public class Client {
public static void main(String[] args) {
Bank bank = null;
Account account = null;
int accountNumber = 0;
try {
/*
* Get a reference to the Account Session Object
*/
Context ctx = new InitialContext(System.getProperties());
bank = (Bank)ctx.lookup(Bank.class.getName());
/*
* Let's find existing accounts in the bank...
*/
List<Account> accounts = bank.listAccounts();
/*
* ... and print them to the screen
*/
System.out.println("--- Accounts in this bank ---");
for(Iterator iter = accounts.iterator(); iter.hasNext();) {
System.out.println(iter.next());
}
System.out.println("-----------------------------");
/*
* Open an account and get a local copy of the account object
* We can access the object in the bank by using our account number.
*/
account = bank.openAccount("Ben Johnson");
accountNumber = account.accountNumber;
/*
* Call the balance() method, and print it
*/
System.out.println("Initial Balance = " +
bank.getBalance(accountNumber));
/*
* Deposit $100 into the account
*/
bank.deposit(accountNumber,100);
/*
* Retrieve the resulting balance both from
* the original and the local copy
*/
System.out.println("After depositing $100, the account balance is: $"
+ bank.getBalance(accountNumber));
System.out.println("Sadly, the local account balance still is: $"
+ account.balance);
/*
* Try to withdraw $150
*/
System.out.println("Now trying to withdraw $150, which is more than is currently available.");
int withdrawn = bank.withdraw(accountNumber,150);
if(withdrawn != 150)
System.out.println("No success...");
else
System.out.println("Success");
// account.balance += 10000;
// bank.update(account);
//
// System.out.println("After depositing $10,000 locally and updating, the account balance is: $"
// + bank.getBalance(accountNumber));
} catch (Exception e) {
System.out.println("Message: " + e.getMessage());
} finally {
/*
* Destroy the Entity permanently
try {
if (account != null) {
System.out.println("Destroying account..");
bank.close(accountNumber);
}
} catch (Exception e) {
e.printStackTrace();
}
*/
}
}
}
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