4 files changed, 512 insertions, 0 deletions
diff --git a/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/Customer.java b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/Customer.java
new file mode 100644
index 0000000..c986436
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/Customer.java
@@ -0,0 +1,104 @@
+package examples.shop.impl.entity;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+
+/**
+ * This entity represents customer details.
+ */
+@Entity
+public class Customer implements java.io.Serializable {
+
+    private String customerID;
+
+    private String name;
+
+    private String password;
+
+    private String address;
+    
+    private double discount;
+
+    /**
+     * Returns the Id of the customer
+     */
+    @Id
+    public String getCustomerID() {
+        return customerID;
+    }
+
+    /**
+     * Sets the id of the customer
+     */
+    public void setCustomerID(String customerId) {
+        this.customerID = customerId;
+    }
+    /**
+     * Returns the name of the customer
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Sets the name of the customer
+     */
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    /**
+     * Returns the password of the customer
+     */
+    public String getPassword() {
+        return password;
+    }
+
+    /**
+     * Sets the password of the customer
+     */
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    /**
+     * Returns the address of the customer
+     */
+    public String getAddress() {
+        return address;
+    }
+
+    /**
+     * Sets the address of the customer
+     */
+    public void setAddress(String address) {
+        this.address = address;
+    }
+
+    public double getDiscount() {
+        return discount;
+    }
+    
+    public void setDiscount(double discount) {
+        this.discount = discount;
+    }
+    
+    public Customer() {
+    }
+
+    /**
+     * Called when new data is created.
+     *
+     * We need to initialize our Bean's state with the parameters
+     * passed from the client by calling our own abstract set
+     * methods.  The Container can then inspect our Bean and
+     * INSERT the corresponding database entries.
+     */
+    public void init(String id, String name, String password, String address) {
+        setCustomerID(id);
+        setName(name);
+        setAddress(address);
+        setPassword(password);
+    }
+
+}
diff --git a/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/LineItem.java b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/LineItem.java
new file mode 100644
index 0000000..447cc75
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/LineItem.java
@@ -0,0 +1,132 @@
+package examples.shop.impl.entity;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.OneToOne;
+
+
+/**
+ * A line item entity is a quantity of a single product. 
+ * 
+ * Instances of this class are used for both in-memory represenation 
+ * of carts and the persistent representation of orders in 
+ * the database 
+ */
+@Entity
+public class LineItem implements java.io.Serializable {
+
+    private String id;
+    
+    /** the product */
+    private Product product;
+
+    /** Number of items */
+    private int quantity;
+
+    /** Amount of the discount for each item */
+    private double discount;
+
+    /**
+     * Constructor
+     * @param productitem
+     * @param number of items
+     * @Param discount for each item 
+     */
+    public LineItem(Product productItem, int quantity, double discount) {
+        System.out.println("LineItem(...) called");
+        this.product = productItem;
+        this.quantity = quantity;
+        this.discount = discount;
+    }
+
+    public LineItem() {
+        System.out.println("New LineItem created.");
+    }
+    
+    /**
+     * The id number of this line item. This is our primary key as well.
+     * 
+     * @return the id
+     */
+    @Id
+    public String getId() {
+        return id;
+    }
+
+    /**
+     * Sets the id
+     */
+    public void setId(String id) {
+        this.id = id;
+    }
+
+
+    /**
+     * @return the productitem.
+     * productitem has product id, name of the product and description
+     */
+    @OneToOne
+    public Product getProduct() {
+        System.out.println("LineItem.getProduct() called.");
+        return product;
+    }
+
+    /**
+     * @param productItem.
+     */
+    public void setProduct(Product product) {
+        System.out.println("LineItem.setProduct() called.");
+        this.product = product;
+    }
+
+    /**
+     * @return the number of items.
+     */
+    public int getQuantity() {
+        System.out.println("LineItem.getQuantity() called.");
+        return quantity;
+    }
+
+    /**
+     * @param the number of items.
+     */
+    public void setQuantity(int quantity) {
+        System.out.println("LineItem.setQuantity() called.");
+        this.quantity = quantity;
+    }
+
+    /**
+     * @return the base price.  The base price is the
+     * product's price times the quantity ordered.  This
+     * figure does not take discounts into consideration.
+     */
+    public double basePrice() {
+        System.out.println("LineItem.getBasePrice() called.");
+        return quantity * product.getBasePrice();
+    }
+
+    /**
+     * @return the discount that the customer gets on
+     * this order.
+     *
+     * Note: The discount is a whole number, not
+     *       a percentage discount.
+     */
+    public double getDiscount() {
+        System.out.println("LineItem.getDiscount() called.");
+        return discount;
+    }
+
+    /**
+     * @param the discount that the customer gets on
+     * this order.
+     *
+     * Note: The discount is a whole number, not
+     *       a percentage discount.
+     */
+    public void setDiscount(double discount) {
+        System.out.println("LineItem.setDiscount(" + discount + ") called.");
+        this.discount = discount;
+    }
+
+}
diff --git a/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/Order.java b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/Order.java
new file mode 100644
index 0000000..8986495
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/Order.java
@@ -0,0 +1,183 @@
+package examples.shop.impl.entity;
+
+import java.sql.Timestamp;
+import java.util.Iterator;
+import java.util.List;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+import javax.persistence.Table;
+
+/**
+ * This entity represents an order placed for goods. 
+ * 
+ * Note: This entity could easily be extended to include other things, such as:
+ * <ul>
+ * <li>Shipping charges 
+ * <li>Shipping address vs. Billing address 
+ * <li>A date which this order is scheduled to be completed/shipped.
+ * </ul>
+ */
+
+@Entity
+@Table(name = "ORDERS")
+public class Order {
+
+    public enum Status {
+        Submitted, Unverified, Approved, Shipping, Delivered, Returned
+    };
+
+    private String orderId;
+
+    private List<LineItem> lineItems;
+
+    private Customer customer;
+
+    private Timestamp orderDate;
+
+    private Status status;
+
+    private double taxes;
+
+    private double subTotal;
+
+    /**
+     * This order's identification number. It's also our Primary Key.
+     * 
+     * @return order id
+     */
+    @Id
+    public String getOrderID() {
+        return orderId;
+    }
+
+    /**
+     * Sets the order id of an order
+     */
+    public void setOrderID(String id) {
+        orderId = id;
+    }
+
+    /**
+     * This represents a one-to-many relationship to the
+     * line items in the order. Persisting the order cascades
+     * to the line items. 
+     *  
+     * @return the set of order line items
+     */
+    @OneToMany(cascade = CascadeType.PERSIST)
+    public List<LineItem> getLineItems() {
+        return lineItems;
+    }
+
+    /**
+     * Sets set of the order line items
+     */
+    public void setLineItems(List<LineItem> lineItems) {
+        this.lineItems = lineItems;
+    }
+
+    /**
+     * @returns the Customer who placed this Order.
+     */
+    public Customer getCustomer() {
+        return customer;
+    }
+
+    /**
+     * set customer who placed this order.
+     */
+    public void setCustomer(Customer customer) {
+        this.customer = customer;
+    }
+
+    /**
+     * Returns the date this order was placed.
+     */
+    public Timestamp getOrderDate() {
+        return orderDate;
+    }
+
+    /**
+     * Sets the date this order
+     */
+    public void setOrderDate(Timestamp orderDate) {
+        this.orderDate = orderDate;
+    }
+
+    /**
+     * @return status information about the order.
+     */
+    public Status getStatus() {
+        return status;
+    }
+
+    /**
+     * Sets status information about the order.
+     */
+    public void setStatus(Status status) {
+        this.status = status;
+    }
+
+    /**
+     * Sets the subtotal of this order
+     */
+
+    public double getSubTotal() {
+        return subTotal;
+    }
+
+    /**
+     * Returns the subtotal of this order
+     */
+    public void setSubTotal(double subTotal) {
+        this.subTotal = subTotal;
+    }
+
+    /**
+     * Returns taxes of this order
+     */
+    public double getTaxes() {
+        return taxes;
+    }
+
+    /**
+     * Sets the taxes of this order
+     */
+    public void setTaxes(double taxes) {
+        this.taxes = taxes;
+    }
+
+    /**
+     * Returns the subtotal rice of the entire order, ie. the sum of 
+     * the base prices of all line items in this order. 
+     */
+    public double totalPrice() {
+        double totalPrice = 0;
+        for (Iterator<LineItem> iter = getLineItems().iterator(); iter
+                .hasNext();) {
+            LineItem item = iter.next();
+            totalPrice += item.getProduct().basePrice;
+        }
+        return totalPrice;
+    }
+
+    /**
+     * Called to initialize a new order entity 
+     * 
+     * We need to initialize our entity's state with the parameters passed from
+     * the client.
+     */
+    public void init(String orderID, Customer customer, Status status,
+            double subTotal, double taxes) {
+        System.out.println("Order.init(" + orderID + ") called");
+        setOrderID(orderID);
+        setOrderDate(new java.sql.Timestamp(System.currentTimeMillis()));
+        setStatus(status);
+        setSubTotal(subTotal);
+        setTaxes(taxes);
+    }
+
+}
diff --git a/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/Product.java b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/Product.java
new file mode 100644
index 0000000..99fb29a
--- /dev/null
+++ b/Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/Product.java
@@ -0,0 +1,93 @@
+package examples.shop.impl.entity;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+
+/**
+ * Entity 
+ *
+ * This is a product that's persistent.  It has an ID #, a name,
+ * a description, and a base price.
+ */
+@Entity
+public class Product implements java.io.Serializable {
+
+    public String name;
+    public String description;
+    public double basePrice;
+    public String productID;
+    
+    public Product() {
+    }
+
+    /**
+     * @return the product id.
+     */
+    @Id
+    public String getProductID() {
+        return productID;
+    }
+
+    /**
+     * Sets the product id.
+     */
+    public void setProductID(String productID) {
+        this.productID = productID;
+    }
+
+    /**
+     * @return the name of the product.
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Sets the name of the product.
+     */
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    /**
+     * @return the description of the product.
+     */
+    public String getDescription() {
+        return description;
+    }
+
+    /**
+     * Sets the description of the product.
+     */
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    /**
+     * @return the base price of the product.
+     */
+    public double getBasePrice() {
+        return basePrice;
+    }
+
+    /**
+     * Sets the base price of the product.
+     */
+    public void setBasePrice(double price) {
+        this.basePrice = price;
+    }
+
+    
+    /**
+     * This is the initialization method
+     */
+    public Product init(String productID, String name, String description,
+            double basePrice) {
+        this.productID = productID;
+        this.name = name;
+        this.description = description;
+        this.basePrice = basePrice;
+        return this;
+    }
+
+}