BaseTransaction.java

package com.transactions.transactions;

import com.transactions.exceptions.InsufficientFundsException;
import com.transactions.interfaces.TransactionInterface;
import com.transactions.models.BankAccount;
import java.util.Calendar;
import java.util.UUID;

public class BaseTransaction implements TransactionInterface {

    private double amount;
    private Calendar date;
    private String transactionID;

    public BaseTransaction(double amount, Calendar date) {
        this.amount = amount;
        this.date = date;
        this.transactionID = UUID.randomUUID().toString();
    }

    @Override
    public double getAmount() {
        return amount;
    }

    @Override
    public Calendar getDate() {
        return date;
    }

    @Override
    public String getTransactionID() {
        return transactionID;
    }

    @Override
    public void printTransactionDetails() {
        System.out.println("Transaction ID: " + transactionID);
        System.out.println("Amount: " + amount);
        System.out.println("Date: " + date.getTime());
    }

    // Base apply method - does not perform any actual credit or debit
    // subclasses override this with their own specific behaviour
    @Override
    public void apply(BankAccount ba) throws InsufficientFundsException {
        System.out.println("Applying base transaction to: " + ba.getAccountHolder());
        printTransactionDetails();
    }
}