Here, we will introduce you to about the sum() function . It returns the sum of total value of column.
Syntax :
Criteria criteria=session.createCriteria(Pojo.class); criteria.setProjection(Projections.sum(propertyName));
LazyLoading.java
package net.roseindia.action;
import java.util.List;
import net.roseindia.bean.StudentBean;
import net.roseindia.util.HibernateUtil;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.criterion.Projections;
public class CriteiaSort {
public static void main(String[] args) {
Session session = HibernateUtil.getSessionFactory().openSession();
Criteria criteria = session.createCriteria(StudentBean.class);
criteria.setProjection(Projections.sum("fee"));
List totalFee = criteria.list();
System.out.println("Total of fee columm : " + totalFee);
}
}
When you run this application it will display message as shown below:
|
Hibernate: select sum(this_.fee) as y0_ from studentinfo this_ Total of fee columm : [5000] |