forumfieldsdaoimpl.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.ForumfieldsDao;
import cn.jsprun.domain.Forumfields;
import cn.jsprun.utils.HibernateUtil;

public class ForumfieldsDaoImpl implements ForumfieldsDao {
	public boolean addForumfield(Forumfields forumfield) {
		boolean flag = false;
		if (forumfield != null) {
			Session session = null;
			Transaction tran = null;
			try {
				session = HibernateUtil.getSessionFactory().getCurrentSession();
				tran = session.beginTransaction();
				session.save(forumfield);
				flag = true;
				tran.commit();
			} catch (HibernateException e) {
				flag = false;
				if(tran!=null){
					tran.rollback();
				}
				e.printStackTrace();
			}
		}
		return flag;
	}

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

	public boolean updateForumfield(Forumfields forumfield) {
		boolean flag = false;
		if (forumfield != null) {
			Session session = null;
			Transaction tran = null;
			try {
				session = HibernateUtil.getSessionFactory().getCurrentSession();
				tran = session.beginTransaction();
				session.saveOrUpdate(forumfield);
				flag = true;
				tran.commit();
			} catch (HibernateException e) {
				flag = false;
				if(tran!=null){
					tran.rollback();
				}
				e.printStackTrace();
			}
		}
		return flag;
	}

	public Forumfields findById(Short fid) {
		Session session = null;
		Transaction tran = null;
		Forumfields forumfield = null;
		if (fid != null) {
			try {
				session = HibernateUtil.getSessionFactory().getCurrentSession();
				tran = session.beginTransaction();
				forumfield = (Forumfields) session.get(Forumfields.class, fid);
				tran.commit();
			} catch (HibernateException e) {
				if(tran!=null){
					tran.rollback();
				}
				e.printStackTrace();
			}
		}
		return forumfield;
	}
	@SuppressWarnings("unchecked")
	public List<Forumfields> findAll() {
		Session session = null;
		Transaction tran = null;
		Query query = null;
		List<Forumfields> forumfields = null;
		try {
			forumfields = new ArrayList<Forumfields>();
			session = HibernateUtil.getSessionFactory().getCurrentSession();
			tran = session.beginTransaction();
			query = session.createQuery("from Forumfields");
			forumfields = query.list();
			tran.commit();
		} catch (HibernateException e) {
			if(tran!=null){
				tran.rollback();
			}
			e.printStackTrace();
		}
		return forumfields;
	}
	
	public List<Forumfields> findById(List<Short> id) {
		Session session = null;
		Transaction tran = null;
		List<Forumfields> forumfieldsList = new ArrayList<Forumfields>();
		try {
			session = HibernateUtil.getSessionFactory().getCurrentSession();
			tran = session.beginTransaction();
			for(int i = 0;i<id.size();i++){
				Forumfields forumfields = (Forumfields)session.get(Forumfields.class, id.get(i));
				forumfieldsList.add(forumfields);
			}
			tran.commit();
		} catch (HibernateException e) {
			if(tran!=null){
				tran.rollback();
			}
			e.printStackTrace();
		}
		return forumfieldsList;
	}
	
	public void updateForumfields(List<Forumfields> forumsfUpdateList) {
		Session session = null;
		Transaction tran = null;
		try {
			session = HibernateUtil.getSessionFactory().getCurrentSession();
			tran = session.beginTransaction();
			for(int i = 0;i<forumsfUpdateList.size();i++){
				session.update(forumsfUpdateList.get(i));
			}
			tran.commit();
		} catch (HibernateException e) {
			if(tran!=null){
				tran.rollback();
			}
			e.printStackTrace();
		}
	}
	
}