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1 package org.hibernate.ce.auction.model;
2
3 import org.hibernate.ce.auction.exceptions.*;
4
5 import javax.persistence.*;
6 import java.io.Serializable  ;
7 import java.util.*;
8
9
15 @Entity(access = AccessType.FIELD)
16 @Table(name = "ITEM")
17 @org.hibernate.annotations.BatchSize(size = 10)
18 public class Item implements Serializable , Comparable , Auditable {
19
20 @Id(generate = GeneratorType.AUTO)
21 @Column(name = "USER_ID")
22 private Long id = null;
23
24 @Version
25 private int version = 0;
26
27 @Column(length = 255, nullable = false, updatable = false)
28 private String name;
29
30 @ManyToOne
31 @JoinColumn(name="SELLER_ID", nullable = false, updatable = false)
32 private User seller;
33
34 @Column(length = 4000, nullable = false)
35 private String description;
36
37 @org.hibernate.annotations.Type(type = "monetary_amount_usd")
38 @org.hibernate.annotations.Columns(columns = {
39 @Column( name="INITIAL_PRICE"),
40 @Column( name="INITIAL_PRICE_CURRENCY", length = 2)
41 })
42 private MonetaryAmount initialPrice;
43
44 @org.hibernate.annotations.Type(type = "monetary_amount_usd")
45 @org.hibernate.annotations.Columns(columns = {
46 @Column( name="RESERVE_PRICE"),
47 @Column( name="RESERVE_PRICE_CURRENCY", length = 2)
48 })
49 private MonetaryAmount reservePrice;
50
51 @Column( nullable = false, updatable = false)
52 private Date startDate;
53
54 @Column( nullable = false, updatable = false)
55 private Date endDate;
56
57 @OneToMany(cascade = CascadeType.ALL, mappedBy = "item")
58 @org.hibernate.annotations.Cascade(value = org.hibernate.annotations.CascadeType.DELETE_ORPHAN)
59 private Set<CategorizedItem> categorizedItems = new HashSet<CategorizedItem>();
60
61 @OneToMany(cascade = CascadeType.ALL, mappedBy = "item")
62 @org.hibernate.annotations.Cascade(value = org.hibernate.annotations.CascadeType.DELETE_ORPHAN)
63 @org.hibernate.annotations.OrderBy(clause = "CREATED desc")
64 private Collection<Bid> bids = new ArrayList<Bid>();
65
66 @ManyToOne
67 @JoinColumn(name = "SUCCESSFUL_BID_ID", nullable = true)
68 private Bid successfulBid;
69
70
85 @Transient
86 private Collection<String > images = new ArrayList<String >();
87
88 @org.hibernate.annotations.Type(type = "item_state")
90 @Column(name = "ITEM_STATE", nullable = false)
91 private ItemState state;
92
93 @ManyToOne
94 @JoinColumn(name = "APPROVED_BY_USER_ID", nullable = true)
95 private User approvedBy;
96
97 @Column( nullable = true)
98 private Date approvalDatetime;
99
100 @Column( nullable = false, updatable = false)
101 private Date created = new Date();
102
103
106 Item() {}
107
108
111 public Item(String name, String description, User seller,
112 MonetaryAmount initialPrice, MonetaryAmount reservePrice,
113 Date startDate, Date endDate,
114 Set<CategorizedItem> categories, List<Bid> bids, Bid successfulBid, Collection<String > images) {
115 this.name = name;
116 this.seller = seller;
117 this.description = description;
118 this.initialPrice = initialPrice;
119 this.reservePrice = reservePrice;
120 this.startDate = startDate;
121 this.endDate = endDate;
122 this.categorizedItems = categories;
123 this.bids = bids;
124 this.successfulBid = successfulBid;
125 this.images = images;
126 this.state = ItemState.DRAFT;
127 }
128
129
132 public Item(String name, String description, User seller,
133 MonetaryAmount initialPrice, MonetaryAmount reservePrice,
134 Date startDate, Date endDate) {
135 this.name = name;
136 this.seller = seller;
137 this.description = description;
138 this.initialPrice = initialPrice;
139 this.reservePrice = reservePrice;
140 this.startDate = startDate;
141 this.endDate = endDate;
142 this.state = ItemState.DRAFT;
143 }
144
145
147 public Long getId() { return id; }
148 public int getVersion() { return version; }
149
150 public String getName() { return name; }
151 public User getSeller() { return seller; }
152
153 public String getDescription() { return description; }
154 public void setDescription(String description) { this.description = description; }
155
156 public MonetaryAmount getInitialPrice() { return initialPrice; }
157
158 public MonetaryAmount getReservePrice() { return reservePrice; }
159
160 public Date getStartDate() { return startDate; }
161
162 public Date getEndDate() { return endDate; }
163
164 public Set<CategorizedItem> getCategorizedItems() { return categorizedItems; }
165 public void addCategorizedItem(CategorizedItem catItem) {
166 if (catItem == null)
167 throw new IllegalArgumentException ("Can't add a null CategorizedItem.");
168 this.getCategorizedItems().add(catItem);
169 }
170
171 public Collection<Bid> getBids() { return bids; }
172 public void addBid(Bid bid) {
173 if (bid == null)
174 throw new IllegalArgumentException ("Can't add a null Bid.");
175 this.getBids().add(bid);
176 }
177
178 public Bid getSuccessfulBid() { return successfulBid; }
179 public void setSuccessfulBid(Bid successfulBid) { this.successfulBid = successfulBid; }
180
181 public Collection<String > getImages() { return images; }
182 public void setImages(Collection<String > images) { this.images = images; }
183
184 public ItemState getState() { return state; }
185
186 public User getApprovedBy() { return approvedBy; }
187 public void setApprovedBy(User approvedBy) { this.approvedBy = approvedBy; }
188
189 public Date getApprovalDatetime() { return approvalDatetime; }
190 public void setApprovalDatetime(Date approvalDatetime) { this.approvalDatetime = approvalDatetime; }
191
192 public Date getCreated() { return created; }
193
194
196 public boolean equals(Object o) {
197 if (this == o) return true;
198 if (!(o instanceof Item)) return false;
199
200 final Item item = (Item) o;
201
202 if (!created.equals(item.created)) return false;
203 if (name != null ? !name.equals(item.name) : item.name != null) return false;
204
205 return true;
206 }
207
208 public int hashCode() {
209 int result;
210 result = (name != null ? name.hashCode() : 0);
211 result = 29 * result + created.hashCode();
212 return result;
213 }
214
215 public String toString() {
216 return "Item ('" + getId() + "'), " +
217 "Name: '" + getName() + "' " +
218 "Initial Price: '" + getInitialPrice()+ "'";
219 }
220
221 public int compareTo(Object o) {
222 if (o instanceof Item) {
223 return this.getCreated().compareTo( ((Item)o).getCreated() );
224 }
225 return 0;
226 }
227
228
230
243 public Bid placeBid(User bidder, MonetaryAmount bidAmount,
244 Bid currentMaxBid, Bid currentMinBid)
245 throws BusinessException {
246
247 if (currentMaxBid != null && currentMaxBid.getAmount().compareTo(bidAmount) > 0) {
249 throw new BusinessException("Bid too low.");
250 }
251
252 if ( !state.equals(ItemState.ACTIVE) )
254 throw new BusinessException("Auction is not active yet.");
255
256 if ( this.getEndDate().before( new Date() ) )
258 throw new BusinessException("Can't place new bid, auction already ended.");
259
260 Bid newBid = new Bid(bidAmount, this, bidder);
262
263 this.addBid(newBid);
265
266 return newBid;
267 }
268
269
272 public void setPendingForApproval() {
273 state = ItemState.PENDING;
274 }
275
276
282 public void approve(User byUser) throws BusinessException {
283
284 if ( !byUser.isAdmin() )
285 throw new PermissionException("Not an administrator.");
286
287 if ( !state.equals(ItemState.PENDING) )
288 throw new IllegalStateException ("Item still in draft.");
289
290 state = ItemState.ACTIVE;
291 approvedBy = byUser;
292 approvalDatetime = new Date();
293 }
294
295 }
296 |
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