DeleteDemo - Get id on the fly

DeleteDemo.java

package com.luv2code.hibernate.demo;


import java.util.Scanner;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

import com.luv2code.hibernate.demo.entity.Instructor;
import com.luv2code.hibernate.demo.entity.InstructorDetail;

public class DeleteDemo {

	public static void main(String[] args) {

		// create session factory
		SessionFactory factory = new Configuration()
								.configure("hibernate.cfg.xml")
								.addAnnotatedClass(Instructor.class)
								.addAnnotatedClass(InstructorDetail.class)
								.buildSessionFactory();
		
		// create session
		Session session = factory.getCurrentSession();
		
		try {			
			
			// get user id on the fly
			System.out.println("Enter instructor id: ");
	        Scanner in = new Scanner(System.in); 

	        int theId = in.nextInt();
			
			// start a transaction
			session.beginTransaction();

			// get instructor by primary key / id
			Instructor tempInstructor = 
					session.get(Instructor.class, theId);
			
			System.out.println("Found instructor: " + tempInstructor);
			
			// delete the instructors
			if (tempInstructor != null) {
			
				System.out.println("Deleting: " + tempInstructor);
				
				// Note: will ALSO delete associated "details" object
				// because of CascadeType.ALL
				//
				session.delete(tempInstructor);				
			}
			
			// commit transaction
			session.getTransaction().commit();
			
			System.out.println("Done!");
		}
		finally {
			factory.close();
		}
	}

}