tfiledao.java

使用SSH三大框架

package dao;

import java.util.List;

import model.TFile;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

/**
 * Hibernate反向工程自动生成的对数据库进行增，删，改，查的类
 * A data access object (DAO) providing persistence and search support for TFile
 * entities. Transaction control of the save(), update() and delete() operations
 * can directly support Spring container-managed transactions or they can be
 * augmented to handle user-managed Spring transactions. Each of these methods
 * provides additional information for how to configure it for the desired type
 * of transaction control.
 * 
 * @see model.TFile
 * @author MyEclipse Persistence Tools
 */

public class TFileDAO extends HibernateDaoSupport {
	private static final Log log = LogFactory.getLog(TFileDAO.class);
	// property constants
	public static final String FILE_NAME = "fileName";
	public static final String FILE_CONTENT = "fileContent";
	public static final String REMARK = "remark";

	protected void initDao() {
		// do nothing
	}

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

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

	public TFile findById(java.lang.String id) {
		log.debug("getting TFile instance with id: " + id);
		try {
			TFile instance = (TFile) getHibernateTemplate()
					.get("model.TFile", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(TFile instance) {
		log.debug("finding TFile instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			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 TFile instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from TFile as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByFileName(Object fileName) {
		return findByProperty(FILE_NAME, fileName);
	}

	public List findByFileContent(Object fileContent) {
		return findByProperty(FILE_CONTENT, fileContent);
	}

	public List findByRemark(Object remark) {
		return findByProperty(REMARK, remark);
	}

	public List findAll() {
		log.debug("finding all TFile instances");
		try {
			String queryString = "from TFile";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

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

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

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

	public static TFileDAO getFromApplicationContext(ApplicationContext ctx) {
		return (TFileDAO) ctx.getBean("TFileDAO");
	}
}