countrydaoimpl.java

本系统是网上购物的详细代码

package cn.com.tarena.ecport.dao.impl;

import java.util.List;

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

import cn.com.tarena.ecport.common.util.HibernateUtil;
import cn.com.tarena.ecport.dao.ICountryDAO;
import cn.com.tarena.ecport.exception.ECPortException;
import cn.com.tarena.ecport.pojo.Country;

public class CountryDAOImpl implements ICountryDAO {

	@SuppressWarnings("unchecked")
	public List<Country> findAllCountry() throws ECPortException {
		try {
			List<Country> countries = HibernateUtil.getSessionFactory().getCurrentSession().createQuery("from Country").list();
			return countries;
		} catch (RuntimeException e) {
			throw e;
		}
	}

	public void delete(Country persistencePojo) {
		try {
			HibernateUtil.getSessionFactory().getCurrentSession().delete(persistencePojo);
		} catch (RuntimeException e) {
			throw e;
		}
	}

	@SuppressWarnings("unchecked")
	public List<Country> findByExample(Country ExamplePojo) {
		try {
			List<Country> results = HibernateUtil.getSessionFactory().getCurrentSession().createCriteria("Country").add(
                                  Example.create(ExamplePojo)).list();
			return results;
		} catch (RuntimeException re) {
			throw re;
		}
	}

	public Country findById(Long id) {
		try {
			Country country = (Country) HibernateUtil.getSessionFactory().getCurrentSession().get(Country.class, id);
			return country;
		} catch (RuntimeException e) {
			throw e;
		}
	}

	@SuppressWarnings("unchecked")
	public List<Country> findByProperty(String propertyName, Object value) {
		try {
			String queryString = "from Country as model where model."+ propertyName + "= ?";
			Query queryObject = HibernateUtil.getSessionFactory().getCurrentSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			throw re;
		}
	}

	public void lock(Country pojo) {
		try {
			HibernateUtil.getSessionFactory().getCurrentSession().lock(pojo, LockMode.READ);
		} catch (RuntimeException e) {
			throw e;
		}

	}

	public Country merge(Country detachedPojo) {
		try {
			Country country = (Country) HibernateUtil.getSessionFactory().getCurrentSession().merge(detachedPojo);
			return country;
		} catch (RuntimeException e) {
			throw e;
		}
	}

	public void save(Country transientPojo) {
		try {
			HibernateUtil.getSessionFactory().getCurrentSession().save(transientPojo);
		} catch (RuntimeException e) {
			throw e;
		}
	}

	public void saveOrUpdate(Country pojo) {
		try {
			HibernateUtil.getSessionFactory().getCurrentSession().saveOrUpdate(pojo);
		} catch (RuntimeException e) {
			throw e;
		}
	}

}