Breaking News: Grepper is joining You.com. Read the official announcement!

Entity Instances Fetched in Different Sessions

Deepika Sahu answered on December 30, 2022 Popularity 1/10 Helpfulness 1/10

answer Entity Instances Fetched in Different Sessions

related Entity Instances Fetched in Same Session

Entity Instances Fetched in Different Sessions

Comment

@Entity
@Table(name = "Employee")
public class EmployeeEntity implements Serializable
{
   private static final long serialVersionUID = -1798070786993154676L;
   @Id
   @Column(name = "ID", unique = true, nullable = false)
   @GeneratedValue(strategy = GenerationType.SEQUENCE)
   private Integer           employeeId;
   @Column(name = "FIRST_NAME", unique = false, nullable = false, length = 100)
   private String            firstName;
   @Column(name = "LAST_NAME", unique = false, nullable = false, length = 100)
   private String            lastName;

   @Override
   public boolean equals(Object o) {
       if (this == o) return true;
       if (!(o instanceof EmployeeEntity)) return false;

       EmployeeEntity otherEmployee = (EmployeeEntity) o;

       if (getEmployeeId() != null ?
           !getEmployeeId().equals(otherEmployee.getEmployeeId()) : otherEmployee.getEmployeeId() != null)
           return false;
       if (getFirstName() != null ?
           !getFirstName().equals(otherEmployee.getFirstName()) : otherEmployee.getFirstName() != null)
           return false;
       if (getLastName() != null ?
           !getLastName().equals(otherEmployee.getLastName()) : otherEmployee.getLastName() != null)
           return false;

       return true;
   }

   @Override
   public int hashCode() {
   int result = getEmployeeId() != null ? getEmployeeId().hashCode() : 0;
       result = 31 * result + (getFirstName() != null ? getFirstName().hashCode() : 0);
       result = 31 * result + (getLastName() != null?getLastName().hashCode() : 0);
       return result;
   }

   //Setters and Getters
}

Popularity 1/10 Helpfulness 1/10 Language java

Source: howtodoinjava.com

Tags: entity instances java

Link to this answer
Share Copy Link

Contributed on Dec 30 2022

Deepika Sahu

0 Answers Avg Quality 2/10

Closely Related Answers

Entity Instances Fetched in Same Session

Comment

public static void main(String[] args)
{
	Session sessionOne = HibernateUtil.getSessionFactory().openSession();
	sessionOne.beginTransaction();

	// Create new Employee object
	EmployeeEntity emp = new EmployeeEntity();
	emp.setFirstName("Lokesh");
	emp.setLastName("Gupta");
	//Save employee
	sessionOne.save(emp);

	sessionOne.getTransaction().commit();

	//Get employee id
	Integer empId = emp.getEmployeeId();

	//New session where we will fetch the employee two times and compare the objects
	Session sessionTwo = HibernateUtil.getSessionFactory().openSession();
	sessionTwo.beginTransaction();

	EmployeeEntity employeeObj1 = (EmployeeEntity) sessionTwo.get(EmployeeEntity.class, empId);
	EmployeeEntity employeeObj2 = (EmployeeEntity) sessionTwo.get(EmployeeEntity.class, empId);

	//Checking equality
	System.out.println(employeeObj1 == employeeObj2);      //TRUE

	HibernateUtil.shutdown();
}

Popularity 1/10 Helpfulness 1/10 Language java

Source: howtodoinjava.com

Tags: java session entity instances

Link to this answer
Share Copy Link

Contributed on Dec 30 2022

Deepika Sahu

0 Answers Avg Quality 2/10

Entity Instances Fetched in Different Sessions

Contents

More Related Answers

Entity Instances Fetched in Different Sessions

Closely Related Answers

Entity Instances Fetched in Same Session

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.