loanaccountdao.java

jsf开发用例

package com.fisci.custrexam.hibernate;

import java.util.List;
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;

/**
 * A data access object (DAO) providing persistence and search support for
 * Loanaccount 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 com.fisci.custrexam.hibernate.Loanaccount
 * @author MyEclipse Persistence Tools
 */

public class LoanaccountDAO extends HibernateDaoSupport {
	private static final Log log = LogFactory.getLog(LoanaccountDAO.class);
	// property constants
	public static final String BALANCE = "balance";
	public static final String ACCOUNT_NO = "accountNo";

	protected void initDao() {
		// do nothing
	}

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

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

	public Loanaccount findById(java.lang.Long id) {
		log.debug("getting Loanaccount instance with id: " + id);
		try {
			Loanaccount instance = (Loanaccount) getHibernateTemplate().get(
					"com.fisci.custrexam.hibernate.Loanaccount", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Loanaccount instance) {
		log.debug("finding Loanaccount 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 Loanaccount instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Loanaccount 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 findByBalance(Object balance) {
		return findByProperty(BALANCE, balance);
	}

	public List findByAccountNo(Object accountNo) {
		return findByProperty(ACCOUNT_NO, accountNo);
	}

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

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

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

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

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