Updating an object
Here, we look at how to get a record from the database and update the same record to the database. The main goal is to get Employee#2
and update the first name, aarush
, to aarush_updated
.
How to do it…
Here, we are trying to update an employee
object having id
equals 2
.
The SQL query executed to achieve the same result is as follows:
UPDATE employee SET firstName='aarush_updated' WHERE id=2;
Now, let's take a look at how to do the same using hibernate.
Code
Enter the following code to update an object of the employee
type, where id
is 2
:
SessionFactory sessionFactory = HibernateUtil.getSessionFactory(); Session session = sessionFactory.openSession(); /* Line 3 */ Employee employee = (Employee) session.get(Employee.class, new Long(2)); ...
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