banking.java

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package itso.webserv.model.facade;

import itso.webserv.exception.AccountDatabaseException;
import itso.webserv.exception.AccountDoesNotExistException;
import itso.webserv.exception.ZeroAmountException;
import itso.webserv.model.entity.Account;
import itso.webserv.model.persistence.AccountDB;
import java.io.Serializable;
import java.math.BigDecimal;

/**
 * Facade to access the Account, perform credits and debits.
 * 
 * @author Ian Brown
 */

public class Banking implements Serializable {

	/**
	 * Deposit funds into a bank account
	 */
	public void deposit(String accountId, BigDecimal amount)
		throws AccountDoesNotExistException, ZeroAmountException {
		
		AccountDB accountDB = AccountDB.getInstance();
		accountDB.credit(accountId,amount);
	}

	/**
	 * Withdraw funds from a bank account
	 */
	public void withdraw(String accountId, BigDecimal amount)
		throws AccountDoesNotExistException, ZeroAmountException {
		
		AccountDB accountDB = AccountDB.getInstance();
		accountDB.debit(accountId,amount);
	}

	/**
	 * Get details about a bank account
	 */
	public Account getAccount(String accountId)
		throws AccountDoesNotExistException, AccountDatabaseException {

		AccountDB accountDB = AccountDB.getInstance();
		Account account = accountDB.getAccount(accountId);
		return account;
	}

}