banking.java

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package itso.bank.facade;

import itso.bank.exception.AccountDoesNotExistException;
import itso.bank.exception.CustomerDoesNotExistException;
import itso.bank.exception.InsufficientFundsException;
import itso.bank.model.*;
import java.math.BigDecimal;

import java.io.Serializable;
import java.util.Collection;

/**
 * JavaBean Banking, implementing the banking example fa鏰de.
 * 
 * @author Fabio Ferraz
 */

public class Banking implements Serializable {

	// the Bank	
	private transient Bank bank;
	
	private Bank getBank() {
		if (bank == null) bank = Bank.getInstance();		
		return bank;
	}

	// business methods
	public BigDecimal deposit(String accountID, BigDecimal amount)
		throws AccountDoesNotExistException {
		return getBank().deposit(accountID, amount);
	}

	public BigDecimal withdraw(String accountID, BigDecimal amount)
		throws InsufficientFundsException, AccountDoesNotExistException {
		return getBank().withdraw(accountID, amount);
	}

	public BigDecimal transfer(String accountID1, String accountID2, BigDecimal amount)
		throws InsufficientFundsException, AccountDoesNotExistException {
		return getBank().transfer(accountID1, accountID2, amount);
	}

	public Customer getCustomer(String customerID) throws CustomerDoesNotExistException {
		return getBank().getCustomer(customerID);
	}

	public Account getAccount(String accountID) throws AccountDoesNotExistException {
		return getBank().getAccount(accountID);
	}

	public Account[] getAccounts(String customerID) throws CustomerDoesNotExistException {
		return getBank().getAccounts(customerID);
	}
	
	public TransRecord[] getTransactions(String accountID) throws AccountDoesNotExistException {
		return getBank().getTransactions(accountID);
	}
}