// COBOL Programmers Swing With Java - copyright 2005 Doke, Hardgrave, & Johnson
// Chapter 9 - Data Access
// Program to demonstrate Object Persistence using Serialization
// ObjectSerializationDemo.java 1 JAN 05

import java.io.*;

public class ObjectSerializationDemo
{
    public static void main (String args[])  // main is first method executed
    {
	// create a File instance for Customer.dat
	File customerFile = new File ("C:/Temporary/Customer.dat");
	// create two customer instances
        String name = "Jed Muzzy";
        String ssNo = "499444471";
        String address = "P.O. Box 1881, Great Falls, MT 59601";
        String phoneNumber = "None";
        Customer customer1 =  new Customer(name, ssNo, address, phoneNumber);

        name = "Bill Sinclair";
        ssNo = "491446543";
        address = "General Delivery, Pender Harbor, BC, Canada";
        phoneNumber = "441-8970";
        Customer customer2 =  new Customer(name, ssNo, address, phoneNumber);

	// and store them in "CustomerFile"
	try
	{
	    FileOutputStream f = new FileOutputStream (customerFile);
	    ObjectOutputStream o = new ObjectOutputStream (f);
	    o.writeObject(customer1);
	    o.writeObject(customer2);
	}
	catch (Exception event)
	{System.out.println ("I/O error during write to CustomerFile");}

	// now read them back - Note customer1 is now Bill)
	try
	{
	    FileInputStream f = new FileInputStream (customerFile);
	    ObjectInputStream i = new ObjectInputStream (f);
	    customer2 = (Customer) i.readObject();
	    customer1 = (Customer) i.readObject();
	}
	catch (Exception event)
	{System.out.println ("I/O error during read from CustomerFile");}

	// now display the attributes from retrieved customer instances
        System.out.println ("Name: " + customer1.getName());
        System.out.println ("SS No: " + customer1.getSSNo());
        System.out.println ("Address: " + customer1.getAddress());
        System.out.println ("Phone: " + customer1.getPhoneNumber());

        System.out.println ("Name: " + customer2.getName());
        System.out.println ("SS No: " + customer2.getSSNo());
        System.out.println ("Address: " + customer2.getAddress());
        System.out.println ("Phone: " + customer2.getPhoneNumber());
    }
}  // end of ObjectSerializationDemo.java