This assessment focuses on using Java Persistence API (JPA), Object Relational Mapping (ORM) and Java Persistence Query Language (JPQL) technologies in software application development. In this...

jpqldemo/pom.xml

4.0.0
com.tfth
jpqldemo
1.0-SNAPSHOT
ja

UTF-8
1.8
1.8



org.apache.de
y
de
yclient
10.14.2.0


javax.persistence
javax.persistence-api
2.2


org.eclipse.persistence
eclipselink
2.5.2


org.eclipse.persistence
org.eclipse.persistence.jpa.modelgen.processo
2.5.2
provided


jpqldemo/src/main/java/com/tfth/jpqldemo/Car.java
jpqldemo/src/main/java/com/tfth/jpqldemo/Car.java
package com.tfth.jpqldemo;
import java.io.Serializable;
import javax.persistence.*;
@Entity
@Table(name = "CAR")
@Inheritance(strategy = InheritanceType.JOINED)
@DiscriminatorColumn(name="model")
public abstract class Car implements Serializable {
    private static final long serialVersionUID = 1L;
    
    @Id
    private long carID;
    private String make;
    private String model;
    private long year_of_manufacture;
    private String registration_number;
    private String transmission_type;
    private int number_of_seats;
    private String colour;
    private long price;
    public Car() {
    }
    Car(long carID,String make, String model,long year_of_manufacture,String registration_number,String transmission_type,int number_of_seats,String colour,long price){
        this.carID = carID;
        this.make = make;
        this.model = model;
        this.year_of_manufacture = year_of_manufacture;
        this.registration_number = registration_number;
        this.transmission_type = transmission_type;
        this.number_of_seats = number_of_seats;
        this.colour=colour;
        this.price = price;
    }
    public Long getId() {
        return carID;
    }
    public String getMake() {
         return make;
    }
    public String getModel() {
         return model;
    }
    @Ove
ide
    public String toString() {
        return String.format("%d, %s, %s", this.carID, this.make, this.model);
    }
}
jpqldemo/src/main/java/com/tfth/jpqldemo/Customer.java
jpqldemo/src/main/java/com/tfth/jpqldemo/Customer.java
package com.tfth.jpqldemo;
import java.io.Serializable;
import javax.persistence.*;
import java.util.*;
@Entity
public class Customer implements Serializable {
    private static final long serialVersionUID = 1L;
    
    @Id
    private Long customerID;
    private String firstname;
    private String lastname;
    private String streetaddress;
    private String subu
;
    private String state;
    private String postcode;
    private String emailaddress;
    private String mobilenumber;
    public Customer() {
    }
    Customer(long customerID,String firstname,String lastname,String streetaddress,String subu
,String state,String postcode,String emailaddress,String mobilenumber) {
        this.customerID = customerID;
        this.firstname = firstname;
        this.lastname = lastname;
        this.streetaddress = streetaddress;
        this.subu
 = subu
;
        this.state = state;
        this.postcode = postcode;
        this.emailaddress = emailaddress;
        this.mobilenumber = mobilenumber;
    }
    public Long getcustomerID() {
        return customerID;
    }
    public String getfirstname() {
         return firstname;
    }
    public String getlastname() {
         return lastname;
    }
    public String getstreetaddress() {
         return streetaddress;
    }
    public String getsubu
() {
         return subu
;
    }
    
    public String getstate() {
         return state;
    }
    public String getpostcode() {
         return postcode;
    }
    public String getemailaddress() {
         return emailaddress;
    }
    public String getmobilenumber() {
         return mobilenumber;
    }
    @Ove
ide
    public String toString() {
        return String.format("%d, %s , %s , %s , %s , %s , %s , %s, %s", this.customerID, this.firstname,this.lastname,this.streetaddress,this.subu
,this.state,this.postcode,this.emailaddress,this.mobilenumber);
    }
    
    
}
jpqldemo/src/main/java/com/tfth/jpqldemo/Demo.java
jpqldemo/src/main/java/com/tfth/jpqldemo/Demo.java
package com.tfth.jpqldemo;
import javax.persistence.*;
import java.util.*;
public class Demo {
    
   public static void main(String args[]){
        Customer[] cust_a
 = new Customer[10];
        Car[] car_a
 = new Car[10];
        {
        EntityManagerFactory emf =
            Persistence.createEntityManagerFactory("TFTHPU");
        EntityManager em = emf.createEntityManager();
        for (int i = 0; i < 10; i++) {
            cust_a
[i] = new Customer(i,"FN"+i,"LN"+i,"test","test","test","test","test","test");
        }
        for (int i = 0; i < 5; i++) {
            car_a
[i] = new Echo(i,"ABC","Echo",2000,"test","auto",4,"blue",10000,true,true,true,true,true);
        }
        for (int i = 5; i < 10; i++) {
            car_a
[i] = new Liana(i,"ABC","Liana",2000,"test","auto",4,"blue",10000,true,true,true,true,true);
        }
        em.getTransaction().begin();
        for (int i = 0; i < 10; i++) {
            Sales s = new Sales(i,"05-06-2018",cust_a
[i],car_a
[i]);
            em.persist(s);
        }
        em.getTransaction().commit();
        
        
JPQL
        
Total number of customer records
        Query q1 = em.createQuery("SELECT COUNT(c) FROM Customer c");
        System.out.println("Total Customers: " + q1.getSingleResult());
        
 Retrieve all the Sales objects from the database:
        TypedQuery query =
            em.createQuery("SELECT s FROM Sales s", Sales.class);
        List results = query.getResultList();
        for (Sales s : results) {
            System.out.println(s);
        }
        em.close();
        emf.close();
        }
   }
    
}
        
Query q1 = em.createQuery("SELECT COUNT(c) FROM Customer c");
        
System.out.println("Total Customers: " + q1.getSingleResult());
       
        
 Retrieve all the Customer objects from the database:
        /*
        TypedQuery query =
            em.createQuery("SELECT c FROM Customer c", Customer.class);
        List results = query.getResultList();
        for (Customer c : results) {
            System.out.println(c);
        }
        *
jpqldemo/src/main/java/com/tfth/jpqldemo/Echo.java
jpqldemo/src/main/java/com/tfth/jpqldemo/Echo.java
package com.tfth.jpqldemo;
import java.io.Serializable;
import javax.persistence.*;
@Entity
@DiscriminatorValue(value="Ëcho")
public class Echo extends Car implements Serializable {
    private static final long serialVersionUID = 1L;
    
    
@Id
    
private long carID;
    private boolean inbuilt_navigator;
    private boolean audio;
    private boolean airconditioning;
    private boolean child_safety_lock;
    private boolean fog_lights;
    public Echo() {
    }
    Echo(long carID,String make, String model,long year_of_manufacture,String registration_number,String transmission_type,int number_of_seats,String colour,long price,boolean inbuilt_navigator,boolean audio,boolean airconditioning,boolean child_safety_lock,boolean fog_lights){
        super(carID,make,model,year_of_manufacture,registration_number,transmission_type,number_of_seats,colour,price);
        this.inbuilt_navigator=inbuilt_navigator;
        this.audio=audio;
        this.airconditioning=airconditioning;
        this.child_safety_lock=child_safety_lock;
        this.fog_lights=fog_lights;
    }
}
jpqldemo/src/main/java/com/tfth/jpqldemo/Liana.java
jpqldemo/src/main/java/com/tfth/jpqldemo/Liana.java
package com.tfth.jpqldemo;
import java.io.Serializable;
import javax.persistence.*;
@Entity
@DiscriminatorValue(value="Liana")
public class Liana extends Car implements Serializable {
    private static final long serialVersionUID = 1L;
    
    
@Id
    
private long carID;
    private boolean inbuilt_navigator;
    private boolean audio;
    private boolean airconditioning;
    private boolean child_safety_lock;
    private boolean fog_lights;
    public Liana() {
    }
    Liana(long carID,String make, String model,long year_of_manufacture,String registration_number,String transmission_type,int number_of_seats,String colour,long price,boolean inbuilt_navigator,boolean audio,boolean airconditioning,boolean child_safety_lock,boolean fog_lights){
        super(carID,make,model,year_of_manufacture,registration_number,transmission_type,number_of_seats,colour,price);
        this.inbuilt_navigator=inbuilt_navigator;
        this.audio=audio;
        this.airconditioning=airconditioning;
        this.child_safety_lock=child_safety_lock;
        this.fog_lights=fog_lights;
    }
}
jpqldemo/src/main/java/com/tfth/jpqldemo/Sales.java
jpqldemo/src/main/java/com/tfth/jpqldemo/Sales.java
package com.tfth.jpqldemo;
import java.io.Serializable;
import javax.persistence.*;
@Entity
public class Sales implements Serializable {
    private static final long serialVersionUID = 1L;
    
    @Id
    private long salesID;
    private String date;
    @ManyToOne(optional=false,cascade=CascadeType.PERSIST)
    @JoinColumn(name = "customerID")
    private Customer customer;
    @OneToOne(optional=false,cascade=CascadeType.PERSIST)
    @JoinColumn(name="carID")
    private Car car;
    public Sales() {
    }
    Sales(long salesID,String date,Customer cust,Car car) {
        this.salesID = salesID;
        this.date = date;
        this.customer=cust;
customerID;
        this.car = car;
    }
    public Long getsalesID() {
        return salesID;
    }
    public String getdate() {
         return date;
    }
    public Customer getCustomer() {
         return customer;
    }
    
    public Car getCar() {
         return car;
    }
    
    @Ove
ide
    public String toString() {
        return String.format("%d, %s, %d, %d", this.salesID, this.date, this.customer.getcustomerID(), this.car.getId());
    }
}
jpqldemo/src/main
esources/META-INF/persistence.xml


org.eclipse.persistence.jpa.PersistenceProvide
com.tfth.jpqldemo.Echo
com.tfth.jpqldemo.Liana
com.tfth.jpqldemo.Ca
com.tfth.jpqldemo.Custome
com.tfth.jpqldemo.Sales










jpqldemo/target/classes/.netbeans_automatic_build
jpqldemo/target/classes/com/tfth/jpqldemo/Car.class
package com.tfth.jpqldemo;
public abstract synchronized class Car implements java.io.Serializable {
private static final long serialVersionUID = 1;
private long carID;
private String make;
private String model;
private long year_of_manufacture;
private String registration_number;
private String transmission_type;
private int number_of_seats;
private String colour;
private long price;
public void Car();
void Car(long, String, String, long, String, String, int, String, long);
public Long getId();
public String getMake();
public String getModel();
public String toString();
}
jpqldemo/target/classes/com/tfth/jpqldemo/Customer.class
package com.tfth.jpqldemo;
public synchronized class Customer implements java.io.Serializable {
private static final long serialVersionUID = 1;
private Long customerID;
private String firstname;
private String lastname;
private String streetaddress;
private String subu
;
private String state;
private String postcode;
private String emailaddress;
private String mobilenumber;
public void Customer();
void Customer(long, String, String, String, String, String, String, String, String);
public Long getcustomerID();
public String getfirstname();
public String getlastname();
public String getstreetaddress();
public String getsubu
();
public String getstate();
public String getpostcode();
public String getemailaddress();
public String getmobilenumber();
public String toString();
}
jpqldemo/target/classes/com/tfth/jpqldemo/Demo.class
package com.tfth.jpqldemo;
public synchronized class Demo {
public void Demo();
public static void main(String[]);
}
jpqldemo/target/classes/com/tfth/jpqldemo/Echo.class
package com.tfth.jpqldemo;
public synchronized class Echo extends Car implements java.io.Serializable {
private static final long serialVersionUID = 1;
private boolean inbuilt_navigator;
private boolean audio;
private boolean airconditioning;
private boolean child_safety_lock;
private boolean fog_lights;
public void Echo();
void Echo(long, String, String, long, String, String, int, String, long, boolean, boolean, boolean, boolean, boolean);
}
jpqldemo/target/classes/com/tfth/jpqldemo/Liana.class
package com.tfth.jpqldemo;
public synchronized class Liana extends Car implements java.io.Serializable {
private static final long serialVersionUID = 1;
private boolean inbuilt_navigator;
private boolean audio;
private boolean airconditioning;
private boolean child_safety_lock;
private boolean fog_lights;
public void Liana();
void Liana(long, String, String, long, String, String, int, String, long, boolean, boolean, boolean, boolean, boolean);
}
jpqldemo/target/classes/com/tfth/jpqldemo/one/Car_.class
package com.tfth.jpqldemo.one;
public abstract synchronized class Car_ {
public static volatile javax.persistence.metamodel.SingularAttribute colour;
public static volatile javax.persistence.metamodel.SingularAttribute registration_number;
public static volatile javax.persistence.metamodel.SingularAttribute price;
public static volatile javax.persistence.metamodel.SingularAttribute model;
public static volatile javax.persistence.metamodel.SingularAttribute year_of_manufacture;
public static volatile javax.persistence.metamodel.SingularAttribute make;
public static volatile javax.persistence.metamodel.SingularAttribute transmission_type;
public static volatile javax.persistence.metamodel.SingularAttribute number_of_seats;
public static volatile javax.persistence.metamodel.SingularAttribute carID;
public void Car_();
}
jpqldemo/target/classes/com/tfth/jpqldemo/one/Customer_.class
package com.tfth.jpqldemo.one;
public synchronized class Customer_ {
public static volatile javax.persistence.metamodel.SingularAttribute firstname;
public static volatile javax.persistence.metamodel.SingularAttribute mobilenumber;
public static volatile javax.persistence.metamodel.SingularAttribute...