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Learn complete Hibernate framework at https://www.javaguides.net/p/hibernate-tutorial.html.
Session.clear() Method
Hibernate Session.clear() Method Example
package net.javaguides.hibernate.tutorial;
import org.hibernate.Session;
import org.hibernate.Transaction;
import net.javaguides.hibernate.tutorial.config.HibernateJavaConfig;
import net.javaguides.hibernate.tutorial.entity.Student;
public class RemoveFirstCacheDemo {
public static void main(String[] args) {
Transaction transaction = null;
try (Session session = HibernateJavaConfig.getSessionfactory().openSession()) {
// start the transaction
transaction = session.beginTransaction();
// get the student entity using id
Student student1 = session.load(Student.class, new Long(1));
System.out.println(student1.getFirstName());
System.out.println(student1.getLastName());
System.out.println(student1.getEmail());
// load student entity by id
Student student2 = session.load(Student.class, new Long(1));
System.out.println(student2.getFirstName());
System.out.println(student2.getLastName());
System.out.println(student2.getEmail());
session.clear();
// load student entity by id
Student student3 = session.load(Student.class, new Long(1));
System.out.println(student3.getFirstName());
System.out.println(student3.getLastName());
System.out.println(student3.getEmail());
// commit transaction
transaction.commit();
} catch (Exception e) {
if (transaction != null) {
transaction.rollback();
}
}
}
}
Hibernate: select student0_.id as id1_0_0_, student0_.email as email2_0_0_, student0_.first_name as first_na3_0_0_, student0_.last_name as last_nam4_0_0_ from student student0_ where student0_.id=?
Prabhas
Fadatare
prabhas@gmail.com
Prabhas
Fadatare
prabhas@gmail.com
Hibernate: select student0_.id as id1_0_0_, student0_.email as email2_0_0_, student0_.first_name as first_na3_0_0_, student0_.last_name as last_nam4_0_0_ from student student0_ where student0_.id=?
Prabhas
Fadatare
prabhas@gmail.com
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