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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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