depositcommand.java

国外的数据结构与算法分析用书

package Commands;

import Interfaces.*;
import Sets.*;
import SystemEntities.*;
import Accounts.*;
import dslib.exception.ItemNotFoundUosException;

/**	Command to carry out a deposit.  The command can only be applied
	to regular accounts. */
public class DepositCommand extends Command
{
	/**	The interface that is to be used by this command. */
	StaffInterface cmdInterface;

	/**	The command's constructor. */
	public DepositCommand(StaffInterface userInterface)
	{
		cmdInterface = userInterface;
	}
	
	/**	Execute the command. */
	public void execute()
	{
		int acctID = cmdInterface.getAcctID();
		Account accountAccessed = null;
		try
		{
			accountAccessed = (Account) AccountSetAccess.dictionary().obtain(new Integer(acctID));
		} catch (ItemNotFoundUosException e) 
		{
			cmdInterface.sendMessage("Account number " + acctID + " was not found.");
			return;
		}
		if (accountAccessed instanceof RegularAccount)
		{
			RegularAccount acct = (RegularAccount) accountAccessed;
			amount = cmdInterface.getAmount();
			date = Clock.date();
			acct.deposit(amount);
			acct.logTrans(date, "deposit", amount, 0.0f);
			Printer.printDeposit(acct.number(), amount, date);
		}
		else
			cmdInterface.sendMessage("\n*****Illegal deposit: "
						+ "Cannot deposit in a non-regular account."
						+ "\n    The account with number " + accountAccessed.number() 
						+ " is a " + accountAccessed.getClass().getName() + ".");
	}
}