State of object

I wanted to create Items and be able to display it. The user will do some selection based on what i had displayed. But the constraint was when am asked to add new items i should do it without modifying existing code. I thought factory pattern would solve the issue. I was able to create a facotry which would create instance of an item. This works fine, but the problem is how do i save the state of the object. Like if i have two items. i would want to have object1 with its name, price and manufacturer and object with its details like wise.

I want this because I should be able to display the items somewhere else.

Item.java

public class Item {

int _price;

String _nameOfItem;

String _manufacturer;

int count = 0 ;

public Item() {

}

public void setname(String nameOfItem){

_nameOfItem = nameOfItem;

System.out.println("name of appliance: " +_nameOfItem);

}

public void getprice() {

System.out.println("price: " +_price);

}

public void setprice(int price) {

_price = price;

}

public void setmaker(String maker) {

_manufacturer = maker;

}

public void getmaker(){

System.out.println("manufacured by: " + _manufacturer);

}

}

ItemFactory.java

public class ItemFactory {

Item i;

public void getObject(String str,String name,int cost,String manufacturer) throws ClassNotFoundException, IllegalAccessException, InstantiationException {

Class c = Class.forName(str);

Item i = (Item)c.newInstance();

setDetails(i,name,cost,manufacturer);

}

public void setDetails(Item i,String name,int cost,String maker){

i.setname(name);

i.setprice(cost);

i.getprice();

i.setmaker(maker);

i.getmaker();

}

client.java

public class Client {

public static void main(String[] args) throws ClassNotFoundException, IllegalAccessException, InstantiationException {

ItemFactory i = new ItemFactory();

i.getObject("Item","Microwave",1222,"LG");

//i.getObject("Item","Fan",2233,"kaitan");

//i.getObject("Item","fridge",1234,"LG");

}

}

I might be be wrong in how i went about coding this.

but any help would be reallly appreciated

Thanks

k

[2338 byte] By [avaj_rocksa] at [2007-10-2 19:21:50]
# 1
If I understand your question correctly, you have a couple of choices:(1) Write the data to a file in some format (e.g., comma-separated values, XML, serialized Java objects)(2) Store them in a relational database via JDBC%
duffymoa at 2007-7-13 21:05:55 > top of Java-index,Other Topics,Patterns & OO Design...