JavaDao-HibernateImpl.template

package dao.impl;

import util.HibernateSessionFactory;
import org.hibernate.Criteria;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Criterion;

import java.io.Serializable;
import java.util.List;

/**
 * @Created with Atom
 * @author @author@
 * @time @now@
 * @description
 * BaseDaoHibernateImpl工具类
 *
 **/

public abstract class BaseDaoHibernateImpl {
   @SuppressWarnings ("unchecked")
   public Object findById(Class entityClass, Serializable id, boolean lock) {
      Object object;

      if (lock) {
         object = HibernateSessionFactory.getSession().get(entityClass, id, LockMode.UPGRADE);
      } else {
         object = HibernateSessionFactory.getSession().get(entityClass, id);
      }
      return(object);
   }

   public List findAll(Class entityClass) {
      return(findByCriteria(entityClass));
   }

   public List findByHql(String hql) {
      Query query = HibernateSessionFactory.getSession().createQuery(hql);

      return(query.list());
   }

   public void saveOrUpdate(Object object) {
      HibernateSessionFactory.getSession().saveOrUpdate(object);
   }

   public void delete(Object object) {
      HibernateSessionFactory.getSession().delete(object);
   }

   @SuppressWarnings ("unchecked")
   protected List findByCriteria(Class entityClass, Criterion ... criterion) {
      Criteria crit = HibernateSessionFactory.getSession().createCriteria(entityClass);

      for (Criterion c: criterion) {
         crit.add(c);
      }
      return(crit.list());
   }
}