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Id Equal Restriction
The following example shows how to use Hibernate Id Equal restriction.
Refer first example for the configuration and mapping.
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package com.bethecoder.tutorials.hibernate.basic.criteria;
import java.util.List;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.criterion.Restrictions;
import com.bethecoder.tutorials.hibernate.basic.Company;
import com.bethecoder.tutorials.hibernate.basic.util.HibernateUtil;
public class CrteriaIdEqualRestrictionTest {
/**
* @param args
*/
public static void main(String[] args) {
getCompanyById(2);
getCompanyById(8);
}
private static void getCompanyById(int id) {
Session session = HibernateUtil.getSessionFactory().openSession();
session.beginTransaction();
Criteria criteria = session.createCriteria(Company.class);
criteria.add(Restrictions.idEq(new Integer(id)));
List<Company> companies = criteria.list();
System.out.println("Selected row count : " + companies.size());
for (Company company : companies) {
System.out.println(company);
}
session.getTransaction().commit();
session.close();
}
}
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It gives the following output,
Selected row count : 1
{ id = 2, name = ABC, employeeCount = 23430,
projectCount = 160, address1 = add11, address2 = add22 }
Selected row count : 1
{ id = 8, name = BQO, employeeCount = 9778,
projectCount = 487, address1 = add1459, address2 = add2443 }
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