Source Code Cross Referenced for Cart.java in  » J2EE » jfox » com » ibatis » jpetstore » domain » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » jfox » com.ibatis.jpetstore.domain 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package com.ibatis.jpetstore.domain;
002:
003:        import java.io.Serializable;
004:        import java.math.BigDecimal;
005:        import java.util.ArrayList;
006:        import java.util.Collections;
007:        import java.util.HashMap;
008:        import java.util.Iterator;
009:        import java.util.List;
010:        import java.util.Map;
011:
012:        import com.ibatis.common.util.PaginatedArrayList;
013:        import com.ibatis.common.util.PaginatedList;
014:
015:        public class Cart implements  Serializable {
016:
017:            /* Private Fields */
018:
019:            private final Map itemMap = Collections
020:                    .synchronizedMap(new HashMap());
021:
022:            private final PaginatedList itemList = new PaginatedArrayList(4);
023:
024:            /* JavaBeans Properties */
025:
026:            public Iterator getCartItems() {
027:                return itemList.iterator();
028:            }
029:
030:            public PaginatedList getCartItemList() {
031:                return itemList;
032:            }
033:
034:            public int getNumberOfItems() {
035:                return itemList.size();
036:            }
037:
038:            /* Public Methods */
039:
040:            public Iterator getAllCartItems() {
041:                List allItems = new ArrayList();
042:                itemList.gotoPage(0);
043:                allItems.addAll(itemList);
044:                while (itemList.nextPage()) {
045:                    allItems.addAll(itemList);
046:                }
047:                return allItems.iterator();
048:            }
049:
050:            public boolean containsItemId(String itemId) {
051:                return itemMap.containsKey(itemId);
052:            }
053:
054:            public void addItem(Item item, boolean isInStock) {
055:                CartItem cartItem = (CartItem) itemMap.get(item.getItemId());
056:                if (cartItem == null) {
057:                    cartItem = new CartItem();
058:                    cartItem.setItem(item);
059:                    cartItem.setQuantity(0);
060:                    cartItem.setInStock(isInStock);
061:                    itemMap.put(item.getItemId(), cartItem);
062:                    itemList.add(cartItem);
063:                }
064:                cartItem.incrementQuantity();
065:            }
066:
067:            public Item removeItemById(String itemId) {
068:                CartItem cartItem = (CartItem) itemMap.remove(itemId);
069:                if (cartItem == null) {
070:                    return null;
071:                } else {
072:                    itemList.remove(cartItem);
073:                    return cartItem.getItem();
074:                }
075:            }
076:
077:            public void incrementQuantityByItemId(String itemId) {
078:                CartItem cartItem = (CartItem) itemMap.get(itemId);
079:                cartItem.incrementQuantity();
080:            }
081:
082:            public void setQuantityByItemId(String itemId, int quantity) {
083:                CartItem cartItem = (CartItem) itemMap.get(itemId);
084:                cartItem.setQuantity(quantity);
085:            }
086:
087:            public BigDecimal getSubTotal() {
088:                BigDecimal subTotal = new BigDecimal("0");
089:                Iterator items = getAllCartItems();
090:                while (items.hasNext()) {
091:                    CartItem cartItem = (CartItem) items.next();
092:                    Item item = cartItem.getItem();
093:                    BigDecimal listPrice = item.getListPrice();
094:                    BigDecimal quantity = new BigDecimal(String
095:                            .valueOf(cartItem.getQuantity()));
096:                    subTotal = subTotal.add(listPrice.multiply(quantity));
097:                }
098:                return subTotal;
099:            }
100:
101:        }
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