materialdao.java

本系统是新华社内部信息管理系统

package com.nitpro.dao;


import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;

import com.nitpro.vo.Material;

/**
 * Data access object (DAO) for domain model class Material.
 * @see com.nitpro.vo.Material
 * @author 邓锦溏
 * @version 1.0
 */

public class MaterialDAO extends BaseHibernateDAO implements IMaterialDAO {
	private static final Log log = LogFactory.getLog(MaterialDAO.class);

	// property constants
	public static final String MATERIALTITLE = "materialtitle";

	public static final String MATERIALCONTENT = "materialcontent";

	public void save(Material transientInstance) {
		log.debug("saving Material instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
			getSession().beginTransaction().commit();
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Material persistentInstance) {
		log.debug("deleting Material instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
			getSession().beginTransaction().commit();
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Material findById(java.lang.Integer id) {
		log.debug("getting Material instance with id: " + id);
		try {
			Material instance = (Material) getSession().get(
					"com.nitpro.vo.Material", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	/**
	 * 多条件查询
	 * @param String title
	 * @param String content
	 * @param String username
	 * @param String date
	 * @return List
	 */
	public List findByCondition(String title, String content, String username,
			String date) {

		String HQLString = null;
		HQLString = " m.materialcontent like '%" + content + "%'";
		HQLString = HQLString + "and m.user.username like '%" + username + "%'";
		HQLString = HQLString + "and m.materialtitle like '%" + title + "%'";
		if (date != null && !date.equals("")) {
			HQLString = HQLString + "and m.materialdate='" + date + "'";
		}

		String queryString = "from Material as m where" + HQLString;
		Query queryObject = getSession().createQuery(
				queryString);
		return queryObject.list();
		

	}

	public List findByExample(Material instance) {
		log.debug("finding Material instance by example");
		try {
			List results = getSession()
					.createCriteria("com.nitpro.vo.Material").add(
							Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Material instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Material as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByMaterialtitle(Object materialtitle) {
		return findByProperty(MATERIALTITLE, materialtitle);
	}

	public List findByMaterialcontent(Object materialcontent) {
		return findByProperty(MATERIALCONTENT, materialcontent);
	}

	public List findAll() {
		log.debug("finding all Material instances");
		try {
			String queryString = "from Material";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Material merge(Material detachedInstance) {
		log.debug("merging Material instance");
		try {
			Material result = (Material) getSession().merge(detachedInstance);
			log.debug("merge successful");
			getSession().beginTransaction().commit();
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Material instance) {
		log.debug("attaching dirty Material instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Material instance) {
		log.debug("attaching clean Material instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}