Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package bank.DAO; import bank.entity.Card; import bank.entity.Clients; import bank.entity.Operations; import bank.utils.HibernateUtil; import java.util.List; import java.util.Set; import org.hibernate.Criteria; import org.hibernate.Session; import org.hibernate.criterion.Order; import org.hibernate.criterion.Projections; import org.hibernate.criterion.Restrictions; /** * * @author Danya */ public class OperationsDAO { public List<Operations> listOperations(int bill_id) { Session session = HibernateUtil.getSessionFactory().openSession(); try { return (List<Operations>) session.createCriteria(Operations.class) .add(Restrictions.eq("id_local_side", bill_id)).addOrder(Order.desc("for_id")).list(); } finally { session.close(); } } public List<Operations> listOperations() { Session session = HibernateUtil.getSessionFactory().getCurrentSession(); session.beginTransaction(); List<Operations> result = session.createQuery("from Operations order by for_id").list(); session.getTransaction().commit(); return result; } ///////////////////////////////////// public List<Operations> listFirstOperations(int n) { Session session = HibernateUtil.getSessionFactory().openSession(); session.beginTransaction(); List<Operations> result = session.createCriteria(Operations.class).addOrder(Order.asc("for_id")) .setMaxResults(n).list(); session.getTransaction().commit(); session.close(); return result; } public Long countOperations() { Session session = HibernateUtil.getSessionFactory().openSession(); session.beginTransaction(); ///////////int result = session.createSQLQuery("select count(*) from Operations").executeUpdate(); Criteria criteria = session.createCriteria(Operations.class); criteria.setProjection(Projections.rowCount()); Long result = (Long) criteria.list().get(0); session.getTransaction().commit(); session.close(); return result; } public void displayResultOperations(List resultList) { for (Object o : resultList) { Operations operations = (Operations) o; System.out.println("for_id: " + operations.getFor_id() + " op_type: " + operations.getOp_type() + " id_local_side: " + operations.getId_local_side() + " amount: " + operations.getAmount() + " date: " + operations.getDate()); } } }