The Hibernate Criteria Is Null value is used to check whether the given value is null.
Criteria criteria = session.createCriteria(Student.class); criteria.add(Restrictions.isNull("name")); List list = criteria.list();
An example based on Hibernate Criteria isNull is given below
CriteriaIsNull.javaADS_TO_REPLACE_1
package net.roseindia.main; import java.util.Iterator; import java.util.List; import net.roseindia.bean.Student; import net.roseindia.util.HibernateUtil; import org.hibernate.Criteria; import org.hibernate.Session; import org.hibernate.criterion.Restrictions; public class CriteriaIsNull { public static void main(String[] args) { Session session = HibernateUtil.getSessionFactory().openSession(); Criteria criteria = session.createCriteria(Student.class); criteria.add(Restrictions.isNull("name")); List list = criteria.list(); Iterator iterator = list.iterator(); while (iterator.hasNext()) { Student student = (Student) iterator.next(); System.out.println(student.getName()); } } }
Hibernate: select this_.roll_no as roll1_0_0_, this_.name as name0_0_, this_.course as course0_0_, this_.address as address0_0_ from student this_ where this_.name is null |
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