basketcontroller.java

我做的ssd9 exercise6 的答案。分享

/**
 * BasketController is used to control user's basket.
 * It contains an attribute basket with type of Basket.
 */ 


import java.util.*;
public class BasketController {
    private Basket basket;
    /**
	 * Class constructor.
	 * When create this object, the basket to manage will be set.
	 *
     * @param basket  the basket's object that this class will manage.
     */
	public BasketController(Basket basket){
		this.basket=basket;
	}
	/**
	 * Add a product to user's basket.
	 * <p>
	 * Algorithm:
	 * <p>
	 * This method takes two arguments: the product to add and it's count.
	 * Firstly, this method will judage whether the product is in the basket or not.
	 * If the product already in the basket, this method will add it's purchasecount number with the param count.
	 * Otherwise, this method will set the product's purchasecount with param count. 
	 * And then add the product object into the collection class(products vector) of the basket(this class control,also the user's basket)
	 *  This method will invoke the basket class's add method. 
	 * <p>
	 * Internal data structures:
	 * <p>
	 * Product p.
	 * @see Product
	 * @see Basket
	 * 
	 * @param p  the product's object to added.
	 * @param count  how many the user wants to buy.
	 */
	public void add(Product p,int count){
		//body
	}
	/**
	 * Remove a product from user's basket.
	 * <p>
	 * Algorithm:
	 * <p>
	 * This method takes one arguments: the product to removed.
	 * This method will set the removed product's purchasecount with 0. 
	 * And then remove it from the collection class(products vector) of the basket(this class control,also the user's basket.) 
	 * This method will invoke the basket class's remove method.
	 * <p>
	 * Internal data structures:
	 * <p>
	 * Product p.
	 * @see Product
	 * @see Basket
	 * 
	 * @param p  the product's object to removed.
	 */
	public void remove(Product p){
		//body
	}
	/**
	 * Clear user's basket.
	 * <p>
	 * Algorithm:
	 * <p>
	 * This method will set the all the product purchasecount with 0 in basket. 
	 * And then clear collection class(products vector) of the basket(this class control,also the user's basket.) 
	 * This method will invoke the basket class's clear method.
	 * <p>
	 * Internal data structures:
	 * <p>
	 * Product p.
	 * @see Product
	 * @see Basket
	 *
	 */
	public void clear(){
		//body
	}
	/**
     * Gets all products in the basket.
     * <p>
	 * Algorithm:
	 * <p>
	 * This method will invoke the basket class's getProducts method.
	 * <p>
	 * Internal data structures:
	 * <p>
	 * Basket basket
	 * @see Basket
     * @return  the collection class(vector) of the basket (this class control,also the user's basket.)
     */
	public Vector getAllProducts(){
		return this.basket.getProducts();
	}
}