forumleveldao.java

来自「struts+hibernate BBS mysql数据库 功能基本齐全」· Java 代码 · 共 40 行

package com.elan.forum.dao;

import java.util.List;

import org.hibernate.Query;
import org.hibernate.Session;

import com.elan.db.ElHbnDB;
import com.elan.forum.model.Forumlevel;

public class ForumLevelDAO {
	private ForumLevelDAO() {
	}

	private static ForumLevelDAO flDAO = null;
	static {
		flDAO = new ForumLevelDAO();
	}

	public static ForumLevelDAO newInstance() {
		return flDAO;
	}
	
	@SuppressWarnings("unchecked")
	public List<Forumlevel> getForumLevel() { 
		Session session = ElHbnDB.getSession();
		Query query = session.createQuery("from Forumlevel");
		List<Forumlevel> list = query.list();
		if(!isEmptyList(list)) {
			return list;
		}
		return null;
	}
	

	private boolean isEmptyList(List<Forumlevel> list) {
		return list.size() > 0 ? false : true;
	}
}