storeroomutil.java

J2EE电子商务系统开发从入门到精通---基于Struts和Hibernate技术实现

/*
 * StoreroomUtil.java
 *
 * Created on 2006年5月21日, 下午2:31
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package model.store.hibernate;

import dbservice.hibernate.HibernateService;
import java.util.HashSet;
import java.util.List;
import net.sf.hibernate.Session;
import net.sf.hibernate.Transaction;
import net.sf.hibernate.HibernateException;
/**
 *
 * @author Administrator
 */
public class StoreroomUtil {
    
    public static boolean insert(Storeroom room) {
        Transaction transaction = null;
        Session session = null;
        boolean b = false;
        try {
            session = HibernateService.getSession();
            transaction = session.beginTransaction();
            room.setStoreins(new HashSet());
            room.setStoreouts(new HashSet());
            session.save(room);
            transaction.commit();
            b = true;
        }
        catch (HibernateException he) {
            he.printStackTrace();
            HibernateService.rollbackTransaction(transaction);
            b = false;
        }
        catch (Exception e) {
            e.printStackTrace();
            b = false;
        }
        finally {
            HibernateService.closeSession(session);
            return b;
        }
    }
    
    public static boolean update(String id, Storeroom r) {
        Transaction transaction = null;
        Session session = null;
        boolean b = false;
        try {
            session = HibernateService.getSession();
            transaction = session.beginTransaction();
            Storeroom room = new Storeroom();
            session.load(room, id);
            room.setName(r.getName());
            room.setRemarks(r.getRemarks());
            room.setStoreins(r.getStoreins());
            room.setStoreouts(r.getStoreouts());
            transaction.commit();
            b = true;
        }
        catch (HibernateException he) {
            he.printStackTrace();
            HibernateService.rollbackTransaction(transaction);
            b = false;
        }
        catch (Exception e) {
            e.printStackTrace();
            b = false;
        }
        finally {
            HibernateService.closeSession(session);
            return b;
        }
    }
    
    public static List findAll() {
        List list = null;
        Transaction transaction = null;
        Session session = null;
        try {
            session = HibernateService.getSession();
            transaction = session.beginTransaction();
            list = HibernateService.execQuery("from Storeroom");
            transaction.commit();
            HibernateService.closeSession(session);
        }
        catch (HibernateException he) {
            he.printStackTrace();
            HibernateService.rollbackTransaction(transaction);
            list = null;
        }
        catch (Exception e) {
            e.printStackTrace();
            list = null;
        }
        finally {
            HibernateService.closeSession(session);
            return list;
        }
    }
    
    public static Storeroom find(String id) {
        Storeroom room = null;
        Transaction transaction = null;
        Session session = null;
        try {
            session = HibernateService.getSession();
            transaction = session.beginTransaction();
            room = new Storeroom();
            session.load(room, id);
            transaction.commit();
        }
        catch (HibernateException he) {
            he.printStackTrace();
            HibernateService.rollbackTransaction(transaction);
            room = null;
        }
        catch (Exception e) {
            e.printStackTrace();
            room = null;
        }
        finally {
            HibernateService.closeSession(session);
            return room;
        }
    }
    
    public static boolean delete(String id) {
        Transaction transaction = null;
        Session session = null;
        boolean b = false;
        try {
            session = HibernateService.getSession();
            transaction = session.beginTransaction();
            Storeroom room = new Storeroom();
            session.load(room, id);
            room.getStoreins().clear();
            session.delete(room);
            transaction.commit();
            b = true;
        }
        catch (HibernateException he) {
            he.printStackTrace();
            HibernateService.rollbackTransaction(transaction);
            b = false;
        }
        catch (Exception e) {
            e.printStackTrace();
            b = false;
        }
        finally {
            HibernateService.closeSession(session);
            return b;
        }
    }
    
    public static boolean addStoreouts(String id, Storeout storeout) {
        Transaction transaction = null;
        Session session = null;
        boolean b = false;
        try {
            session = HibernateService.getSession();
            transaction = session.beginTransaction();
            Storeroom room = new Storeroom();
            session.load(room, id);
            storeout.setStoreroom(room);
            session.update(room);
            transaction.commit();
            b = true;
        }
        catch (HibernateException he) {
            he.printStackTrace();
            HibernateService.rollbackTransaction(transaction);
            b = false;
        }
        catch (Exception e) {
            e.printStackTrace();
            b = false;
        }
        finally {
            HibernateService.closeSession(session);
            return b;
        }
    }
    
    public static boolean addStoreins(String id, Storein storein) {
        Transaction transaction = null;
        Session session = null;
        boolean b = false;
        try {
            session = HibernateService.getSession();
            transaction = session.beginTransaction();
            Storeroom room = new Storeroom();
            session.load(room, id);
            storein.setStoreroom(room);
            session.update(room);
            transaction.commit();
            b = true;
        }
        catch (HibernateException he) {
            he.printStackTrace();
            HibernateService.rollbackTransaction(transaction);
            b = false;
        }
        catch (Exception e) {
            e.printStackTrace();
            b = false;
        }
        finally {
            HibernateService.closeSession(session);
            return b;
        }
    }
}