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| author | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
|---|---|---|
| committer | Sven Eisenhauer <sven@sven-eisenhauer.net> | 2023-11-10 15:11:48 +0100 |
| commit | 33613a85afc4b1481367fbe92a17ee59c240250b (patch) | |
| tree | 670b842326116b376b505ec2263878912fca97e2 /Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/LineItem.java | |
| download | Studium-master.tar.gz Studium-master.tar.bz2 | |
Diffstat (limited to 'Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/LineItem.java')
| -rw-r--r-- | Master/Reference Architectures and Patterns/EJB 3.0 Code/Gerald Examples/src/examples/shop/impl/entity/LineItem.java | 132 |
1 files changed, 132 insertions, 0 deletions
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;
+ }
+
+}
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