typemodelsdaoimpl.java

论坛软件系统亦称电子公告板(BBS)系统

package cn.jsprun.dao.impl;

import java.util.ArrayList;
import java.util.List;

import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;

import cn.jsprun.dao.TypemodelsDao;
import cn.jsprun.domain.Typemodels;
import cn.jsprun.utils.HibernateUtil;

public class TypemodelsDaoImpl implements TypemodelsDao {
	public boolean addTypemodel(Typemodels typemodel) {
		boolean flag = false;
		if (typemodel != null) {
			Session session = null;
			Transaction tran = null;
			try {
				session = HibernateUtil.getSessionFactory().getCurrentSession();
				tran = session.beginTransaction();
				session.save(typemodel);
				flag = true;
				tran.commit();
			} catch (HibernateException e) {
				flag = false;
				if(tran!=null){
					tran.rollback();
				}
				e.printStackTrace();
			}
		}
		return flag;
	}

	public boolean removeTypemodel(Typemodels typemodel) {
		boolean flag = false;
		if (typemodel != null) {
			Session session = null;
			Transaction tran = null;
			try {
				session = HibernateUtil.getSessionFactory().getCurrentSession();
				tran = session.beginTransaction();
				session.delete(typemodel);
				flag = true;
				tran.commit();
			} catch (HibernateException e) {
				flag = false;
				if(tran!=null){
					tran.rollback();
				}
				e.printStackTrace();
			}
		}
		return flag;
	}

	public boolean updateTypemodel(Typemodels typemodel) {
		boolean flag = false;
		if (typemodel != null) {
			Session session = null;
			Transaction tran = null;
			try {
				session = HibernateUtil.getSessionFactory().getCurrentSession();
				tran = session.beginTransaction();
				session.saveOrUpdate(typemodel);
				flag = true;
				tran.commit();
			} catch (HibernateException e) {
				flag = false;
				if(tran!=null){
					tran.rollback();
				}
				e.printStackTrace();
			}
		}
		return flag;
	}
	@SuppressWarnings("unchecked")
	public List<Typemodels> findAll() {
		Session session = null;
		Transaction tran = null;
		Query query = null;
		List<Typemodels> typemodels = null;
		try {
			typemodels = new ArrayList<Typemodels>();
			session = HibernateUtil.getSessionFactory().getCurrentSession();
			tran = session.beginTransaction();
			query = session.createQuery("from Typemodels order by displayorder");
			typemodels = query.list();
			tran.commit();
		} catch (HibernateException e) {
			if(tran!=null){
				tran.rollback();
			}
			e.printStackTrace();
		}
		return typemodels;
	}

	public Typemodels findById(Short id) {
		Session session = null;
		Transaction tran = null;
		Typemodels typemodel = null;
		try {
			session = HibernateUtil.getSessionFactory().getCurrentSession();
			tran = session.beginTransaction();
			typemodel = (Typemodels) session.get(Typemodels.class, id);
			tran.commit();
		} catch (HibernateException e) {
			if(tran!=null){
				tran.rollback();
			}
			e.printStackTrace();
		}
		return typemodel;
	}

	@SuppressWarnings("unchecked")
	public List<Typemodels> findByProperty(String propertyName, Object value) {
		Session session = null;
		Transaction tran = null;
		Query query = null;
		List<Typemodels> typemodels = null;
		try {
			typemodels = new ArrayList<Typemodels>();
			session = HibernateUtil.getSessionFactory().getCurrentSession();
			tran = session.beginTransaction();
			query = session.createQuery("from Typemodels as t where t."
					+ propertyName + "=? order by displayorder");
			query.setString(0, value.toString());
			typemodels = query.list();
			tran.commit();
		} catch (HibernateException e) {
			if(tran!=null){
				tran.rollback();
			}
			e.printStackTrace();
		}
		return typemodels;
	}
}