catalog.java

1.本目录存放了演示自定义标签开发与使用的web应用程序

package jnestore.javabeans;

import javax.sql.*;
import java.sql.*;
import java.util.ArrayList;
import java.util.Iterator;

import jnestore.javabeans.ItemInfo;


public class Catalog {
	 ArrayList items ;
	
	public Catalog() {
	 items = new ArrayList();
	 ItemInfo item = new ItemInfo();
	  item.setSku("sku1");
          item.setName("java advanced topic");
          item.setDescription("java book");
          item.setPrice(25);
	  items.add(0,item);
	 
	 ItemInfo item1 = new ItemInfo();
	  item1.setSku("sku2");
          item1.setName("c++ advanced topic");
          item1.setDescription("C++ book");
          item1.setPrice(20);
	  items.add(item1);
	 
	  ItemInfo item2 = new ItemInfo();
	  item2.setSku("sku3");
          item2.setName("C# advanced topic");
          item2.setDescription("C# book");
          item2.setPrice(21);
	 items.add(item2);
		
	}

    // Retrieve an item from the catalog based on it's SKU number
    public ItemInfo getItem(String sku) {
    	Iterator i = items.iterator();
    	while(i.hasNext()) {
         ItemInfo item = (ItemInfo)i.next();
       	 if(item.getSku().equals(sku)) 
       	   return item;       	
       	} 
      return null;
       
    }

    // Retrieves all items in the Catalog and returns the ItemInfo objects as a collection in
    // an ArrayList
    public ArrayList getAllItems() {      

        return items;

    }
}