added DB layer

src/edu/uchicago/mpcs/topics/auction/Bid.java

 package edu.uchicago.mpcs.topics.auction;
 package edu.uchicago.mpcs.topics.auction;
 
 
+import edu.uchicago.mpcs.topics.user.Buyer;
+
 public class Bid {
 public class Bid {
+    private String id;
     private Listing listing;
     private Listing listing;
     private double price;
     private double price;
+    private Buyer buyer;
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public Listing getListing() {
+        return listing;
+    }
+
+    public void setListing(Listing listing) {
+        this.listing = listing;
+    }
+
+    public double getPrice() {
+        return price;
+    }
+
+    public void setPrice(double price) {
+        this.price = price;
+    }
+
+    public Buyer getBuyer() {
+        return buyer;
+    }
 
 
+    public void setBuyer(Buyer buyer) {
+        this.buyer = buyer;
+    }
 }
 }

src/edu/uchicago/mpcs/topics/auction/Item.java

@@ -6,4 +6,19 @@ public class Item {
     private String title;
     private String title;
     private URI image;
     private URI image;
 
 
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public URI getImage() {
+        return image;
+    }
+
+    public void setImage(URI image) {
+        this.image = image;
+    }
 }
 }

src/edu/uchicago/mpcs/topics/auction/Listing.java

@@ -5,9 +5,58 @@ import edu.uchicago.mpcs.topics.user.Seller;
 import java.util.List;
 import java.util.List;
 
 
 public class Listing {
 public class Listing {
+    private String id;
     private Item item;
     private Item item;
     private ItemCategory itemCategory;
     private ItemCategory itemCategory;
     private TimeTracker timeTracker;
     private TimeTracker timeTracker;
     private Seller owner;
     private Seller owner;
     private List<Bid> bids;
     private List<Bid> bids;
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public Item getItem() {
+        return item;
+    }
+
+    public void setItem(Item item) {
+        this.item = item;
+    }
+
+    public ItemCategory getItemCategory() {
+        return itemCategory;
+    }
+
+    public void setItemCategory(ItemCategory itemCategory) {
+        this.itemCategory = itemCategory;
+    }
+
+    public TimeTracker getTimeTracker() {
+        return timeTracker;
+    }
+
+    public void setTimeTracker(TimeTracker timeTracker) {
+        this.timeTracker = timeTracker;
+    }
+
+    public Seller getOwner() {
+        return owner;
+    }
+
+    public void setOwner(Seller owner) {
+        this.owner = owner;
+    }
+
+    public List<Bid> getBids() {
+        return bids;
+    }
+
+    public void setBids(List<Bid> bids) {
+        this.bids = bids;
+    }
 }
 }

src/edu/uchicago/mpcs/topics/auction/TimeTracker.java

@@ -7,4 +7,28 @@ public class TimeTracker {
     private Timer timer;
     private Timer timer;
     private long timeWindow;
     private long timeWindow;
     private Date start;
     private Date start;
+
+    public Timer getTimer() {
+        return timer;
+    }
+
+    public void setTimer(Timer timer) {
+        this.timer = timer;
+    }
+
+    public long getTimeWindow() {
+        return timeWindow;
+    }
+
+    public void setTimeWindow(long timeWindow) {
+        this.timeWindow = timeWindow;
+    }
+
+    public Date getStart() {
+        return start;
+    }
+
+    public void setStart(Date start) {
+        this.start = start;
+    }
 }
 }

src/edu/uchicago/mpcs/topics/db/ListingDB.java

+package edu.uchicago.mpcs.topics.db;
+
+import edu.uchicago.mpcs.topics.auction.Listing;
+
+import java.util.List;
+
+public interface ListingDB {
+    void create(Listing listing);
+    List<Listing> getAll(Listing listing);
+    void update(Listing listing);
+}

src/edu/uchicago/mpcs/topics/db/UserDB.java

+package edu.uchicago.mpcs.topics.db;
+
+import edu.uchicago.mpcs.topics.user.Admin;
+import edu.uchicago.mpcs.topics.user.Buyer;
+import edu.uchicago.mpcs.topics.user.CustomerSupport;
+import edu.uchicago.mpcs.topics.user.Seller;
+
+public interface UserDB {
+    void create(Admin admin);
+    void create(Seller seller);
+    void create(Buyer buyer);
+    void create(CustomerSupport customerSupport);
+
+    void block(Admin admin);
+    void block(Seller seller);
+    void block(Buyer buyer);
+    void block(CustomerSupport customerSupport);
+}

src/edu/uchicago/mpcs/topics/rest/CustomerSupportController.java

+package edu.uchicago.mpcs.topics.rest;
+
+import edu.uchicago.mpcs.topics.support.Email;
+
+import java.util.List;
+
+public interface CustomerSupportController {
+    List<Email> viewCustomerEmails();
+    void reply(Email email);
+}

src/edu/uchicago/mpcs/topics/service/AdminService.java

@@ -3,7 +3,6 @@ package edu.uchicago.mpcs.topics.service;
 import edu.uchicago.mpcs.topics.auction.ItemCategory;
 import edu.uchicago.mpcs.topics.auction.ItemCategory;
 import edu.uchicago.mpcs.topics.auction.Listing;
 import edu.uchicago.mpcs.topics.auction.Listing;
 import edu.uchicago.mpcs.topics.auction.Query;
 import edu.uchicago.mpcs.topics.auction.Query;
-import edu.uchicago.mpcs.topics.support.Email;
 import edu.uchicago.mpcs.topics.user.User;
 import edu.uchicago.mpcs.topics.user.User;
 
 
 import java.util.List;
 import java.util.List;
@@ -19,5 +18,4 @@ public interface AdminService {
     List<Listing> viewFlaggedItems();
     List<Listing> viewFlaggedItems();
     List<Listing> viewInProgressItems();
     List<Listing> viewInProgressItems();
     List<Listing> viewClosed(Query query);
     List<Listing> viewClosed(Query query);
-    List<Email> viewCustomerEmails();
 }
 }

src/edu/uchicago/mpcs/topics/service/CustomerSupportService.java

+package edu.uchicago.mpcs.topics.service;
+
+import edu.uchicago.mpcs.topics.support.Email;
+
+import java.util.List;
+
+public interface CustomerSupportService {
+    List<Email> viewCustomerEmails();
+    void reply(Email email);
+
+}

src/edu/uchicago/mpcs/topics/service/impl/BiddingServiceImpl.java

+package edu.uchicago.mpcs.topics.service.impl;
+
+import edu.uchicago.mpcs.topics.auction.Bid;
+import edu.uchicago.mpcs.topics.auction.Listing;
+import edu.uchicago.mpcs.topics.service.BiddingService;
+import edu.uchicago.mpcs.topics.transaction.ShoppingCart;
+import edu.uchicago.mpcs.topics.user.User;
+
+/**
+ * Created by HSong on 2018/11/4.
+ */
+public class BiddingServiceImpl implements BiddingService {
+    @Override
+    public void placeBid(Listing listing, Bid bid) {
+
+    }
+
+    @Override
+    public void buyNow(Listing listing, ShoppingCart shoppingCart) {
+
+    }
+
+    @Override
+    public void notifyUser(Listing listing, User user) {
+
+    }
+
+    @Override
+    public void createListing(Listing listing) {
+
+    }
+
+    @Override
+    public Listing updateListing(Listing listing) {
+        return null;
+    }
+
+    @Override
+    public boolean removeListing(Listing listing, User user) {
+        return false;
+    }
+}

src/edu/uchicago/mpcs/topics/support/Email.java

@@ -6,8 +6,49 @@ import edu.uchicago.mpcs.topics.user.User;
  * Created by HSong on 2018/11/4.
  * Created by HSong on 2018/11/4.
  */
  */
 public class Email {
 public class Email {
+    private String id;
     private User from;
     private User from;
     private User to;
     private User to;
     private String subject;
     private String subject;
     private String content;
     private String content;
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public User getFrom() {
+        return from;
+    }
+
+    public void setFrom(User from) {
+        this.from = from;
+    }
+
+    public User getTo() {
+        return to;
+    }
+
+    public void setTo(User to) {
+        this.to = to;
+    }
+
+    public String getSubject() {
+        return subject;
+    }
+
+    public void setSubject(String subject) {
+        this.subject = subject;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
 }
 }

src/edu/uchicago/mpcs/topics/transaction/ShoppingCart.java

@@ -6,4 +6,12 @@ import java.util.List;
 
 
 public class ShoppingCart {
 public class ShoppingCart {
     private List<Listing> listings;
     private List<Listing> listings;
+
+    public List<Listing> getListings() {
+        return listings;
+    }
+
+    public void setListings(List<Listing> listings) {
+        this.listings = listings;
+    }
 }
 }

src/edu/uchicago/mpcs/topics/transaction/Transaction.java

@@ -6,4 +6,20 @@ import edu.uchicago.mpcs.topics.user.Buyer;
 public class Transaction {
 public class Transaction {
     private Listing listing;
     private Listing listing;
     private Buyer buyer;
     private Buyer buyer;
+
+    public Listing getListing() {
+        return listing;
+    }
+
+    public void setListing(Listing listing) {
+        this.listing = listing;
+    }
+
+    public Buyer getBuyer() {
+        return buyer;
+    }
+
+    public void setBuyer(Buyer buyer) {
+        this.buyer = buyer;
+    }
 }
 }

src/edu/uchicago/mpcs/topics/user/User.java

 package edu.uchicago.mpcs.topics.user;
 package edu.uchicago.mpcs.topics.user;
 
 
 public class User {
 public class User {
+    private String id;
+    private String password;
+    private String firstName;
+    private String lastName;
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
 }
 }

src/edu/uchicago/mpcs/topics/user/WatchList.java

@@ -5,5 +5,13 @@ import edu.uchicago.mpcs.topics.auction.Item;
 import java.util.List;
 import java.util.List;
 
 
 public class WatchList {
 public class WatchList {
-    List<Item> items;
+    private List<Item> items;
+
+    public List<Item> getItems() {
+        return items;
+    }
+
+    public void setItems(List<Item> items) {
+        this.items = items;
+    }
 }
 }