departmentutil.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

/*
 * DepartmentUtil.java
 *
 * Created on 2006年5月6日, 下午10:30
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package model.hr.hibernate;

import dbservice.hibernate.HibernateService;
import java.util.HashSet;
import java.util.List;
import model.asset.hibernate.Asset;
import net.sf.hibernate.HibernateException;
import net.sf.hibernate.Session;
import net.sf.hibernate.Transaction;

/**
 *
 * @author Administrator
 */
public class DepartmentUtil {
    
    public static boolean insert(Department department) {
        Transaction transaction = null;
        Session session = null;
        boolean b = false;
        try {
            session = HibernateService.getSession();
            transaction = session.beginTransaction();
            session.save(department);
            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;
        list = HibernateService.execQuery("from Department");
        return list;
    }
    
    public static Department find(String id) {
        Department dep = null;
        Transaction transaction = null;
        Session session = null;
        try {
            session = HibernateService.getSession();
            transaction = session.beginTransaction();
            dep = new Department();
            session.load(dep, Byte.valueOf(id));
            transaction.commit();
        } 
        catch (HibernateException he) {
            he.printStackTrace();
            HibernateService.rollbackTransaction(transaction);
            dep = null;
        } 
        catch (Exception e) {
            e.printStackTrace();
            dep = null;
        }
        finally {
            HibernateService.closeSession(session);
            return dep;
        }
    }
    
    public static boolean addEmployees(String id, Employee employee) {
        Transaction transaction = null;
        Session session = null;
        boolean b = false;
        try {
            session = HibernateService.getSession();
            transaction = session.beginTransaction();
            Department department = new Department();
            session.load(department, Byte.valueOf(id));
            employee.setDepartment(department);
            session.update(department);
            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 addAssets(String id, Asset asset) {
        Transaction transaction = null;
        Session session = null;
        boolean b = false;
        try {
            session = HibernateService.getSession();
            transaction = session.beginTransaction();
            Department department = new Department();
            session.load(department, Byte.valueOf(id));
            asset.setDepartment(department);
            session.update(department);
            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;
        }
    }
}