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Top Five Employed Companies
The following example shows getting top five employed companies.
Refer first example for the configuration and mapping.
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package com.bethecoder.tutorials.hibernate.basic.tests;
import java.util.List;
import org.hibernate.Session;
import com.bethecoder.tutorials.hibernate.basic.Company;
import com.bethecoder.tutorials.hibernate.basic.util.HibernateUtil;
public class TopListTest {
/**
* @param args
*/
public static void main(String[] args) {
Session session = HibernateUtil.getSessionFactory().openSession();
session.beginTransaction();
String HQL_QUERY = "from Company comp where 5 > " +
"(select count(*) from Company comp2 where comp2.employeeCount > comp.employeeCount)" +
" order by comp.employeeCount desc";
List<Company> companies = (List<Company>) session.createQuery(HQL_QUERY).list();
for (Company company : companies) {
System.out.println(company);
}
session.getTransaction().commit();
session.close();
}
}
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It gives the following output,
{ id = 6, name = RNK, employeeCount = 98890,
projectCount = 8478, address1 = add1412, address2 = add27823 }
{ id = 7, name = AOQ, employeeCount = 97890,
projectCount = 4578, address1 = add17892, address2 = add2893 }
{ id = 4, name = IJK, employeeCount = 67890,
projectCount = 850, address1 = add1112, address2 = add2223 }
{ id = 5, name = ART, employeeCount = 67890,
projectCount = 850, address1 = add1112, address2 = add2223 }
{ id = 3, name = MNO, employeeCount = 26790,
projectCount = 670, address1 = add111, address2 = add222 }
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