2012/12/25

package com.yys.dao.impl;

import java.lang.reflect.ParameterizedType;
import java.util.List;

import javax.annotation.Resource;

import org.hibernate.Query;
import org.hibernate.SessionFactory;

import com.yys.dao.BaseDao;
@SuppressWarnings("unchecked")
public abstract class BaseDaoImpl<T> implements BaseDao<T> {
 private Class<T> clazz;
 @Resource
    private SessionFactory sessionFactory;
 
 protected BaseDaoImpl() {
  ParameterizedType type=(ParameterizedType) this.getClass().getGenericSuperclass();
  clazz=(Class<T>) type.getActualTypeArguments()[0];
 }

 @Override
 public void saveEntity(T t) throws Exception {
  this.sessionFactory.getCurrentSession().save(t);
 }

 @Override
 public void deleteEntity(T t) throws Exception {
  this.sessionFactory.getCurrentSession().delete(t);
  
 }

 @Override
 public void updateEntity(T t) throws Exception {
  this.sessionFactory.getCurrentSession().update(t);
  
 }

 @Override
 public void saveOrUpdate(T t) throws Exception {
  this.sessionFactory.getCurrentSession().saveOrUpdate(t);
  
 }

 @Override
 public void batchEntityByHql(String Hql, Object... objects)
   throws Exception {
  Query query=this.sessionFactory.getCurrentSession().createQuery(Hql);
  for(int i=0;i<objects.length;i++){
   query.setParameter(i, objects[i]);
  }
  query.executeUpdate();
 }

 @Override
 public T getEntity(Integer id) {
    return (T) this.sessionFactory.getCurrentSession().get(clazz,id);
 }

 @Override
 public T loadEntity(Integer id) {
  return (T) this.sessionFactory.getCurrentSession().load(clazz, id);
 }

 @Override
 public List<T> findEntityByHQL(String Hql, Object... objects) {
  Query query=this.sessionFactory.getCurrentSession().createQuery(Hql);
  for(int i=0;i<objects.length;i++){
   query.setParameter(i, objects[i]);
  }
  return query.list();
 }

}