frequentbuyer.java

此程序都是企业级 的数据库开发程序 全面揭示了JAVA对数据库的操作

import java.util.*;

import org.jlf.log.*;
import org.jlf.dataMap.*;

/**
 * This class hold information for a customer who is a
 * frequent buyer, to give discounts in reward for their loyalty.
 */
public class FrequentBuyer extends VolumeCustomer {

  /**
   * Main constructor for the class.  Populates all
   * attributes of the class and sets the type accordingly.
   */
  public FrequentBuyer(String nickname, String emailAddress, String name, 
                       String address, String city, String state, 
                       String zipcode) {
    super(nickname, emailAddress, name, address, city, state, zipcode);
    resetCustomerType(CustomerType.FREQUENT_BUYER);
  }

  /**
   * Default constructor must be public for the data mapping
   * framework!  However, when creating a new object, look to use
   * a paramterized constructor.
   */
  public FrequentBuyer() {}

  /**
   * Return the amount of discount applicable to the volume
   * customer.  Give a 5% discount to all frequent buyers.
   */
  public double discountRate() {
    return 0.05;
  } 

}