HibernateDaoSupport
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Data;
using System.Linq;
using NHibernate;
using NHibernate.Criterion;
using NHibernate.Linq;
using Spring.Data.NHibernate;
using Spring.Data.NHibernate.Generic;
using Spring.Data.NHibernate.Generic.Support;
namespace DAO.Hibernate.common
{
/**
* GenericHibernateDao 继承 HibernateDao，简单封HibernateTemplate各项功能
* 基于Hibernate Dao 的编写�
*
* @author rls
*/
public class HibernateDaoHelp<T, TK> : HibernateDaoSupport, IDaoHelp<T, TK> where T : class
{
// -------------------- 基本增加修改删除操作--------------------
/// <summary>
///根据主键获取实体。如果没有相应的实体，返回null�
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public T Get(TK id)
{
return HibernateTemplate.Get<T>(id);
}
/// <summary>
/// 根据主键获取实体并加锁�?如果没有相应的实体，返回 null�?
/// </summary>
/// <param name="id">主键ID</param>
/// <param name="locked">锁</param>
/// <returns>返回一个对象实体</returns>
public T GetWithLock(TK id, LockMode locked)
{
var t = HibernateTemplate.Get<T>(id,locked);
if (t != null)
{
HibernateTemplate.Flush(); // 立即刷新，否则锁不会生效�?
}
return t;
}
/// <summary>
/// 根据主键获取实体。如果没有相应的实体，抛出异常�?
/// </summary>
/// <param name="id">主键ID</param>
/// <returns></returns>
public T Load(TK id)
{
return HibernateTemplate.Load<T>(id);
}
/// <summary>
/// 根据主键获取实体并加锁�?如果没有相应的实体，抛出异常�?
/// </summary>
/// <param name="id"></param>
/// <param name="locked"></param>
/// <returns></returns>
public T LoadWithLock(TK id, LockMode locked)
{
var t = HibernateTemplate.Get<T>(id,
locked)
;
if (t != null)
{
HibernateTemplate.Flush(); // 立即刷新，否则锁不会生效�?
}
return t;
}
/// <summary>
/// 获取全部实体
/// </summary>
/// <returns></returns>
public List<T> LoadAll()
{
return HibernateTemplate.LoadAll<T>().ToList();
}
/// <summary>
/// 更新实体信息
/// </summary>
/// <param name="entity"></param>
public void Update(T entity)
{
HibernateTemplate.Update(entity);
}
/// <summary>
/// 更新实体并加锁
/// </summary>
/// <param name="entity"></param>
/// <param name="locked"></param>
public void UpdateWithLock(T entity, LockMode locked)
{
HibernateTemplate.Update(entity,
locked);
HibernateTemplate.Flush(); // 立即刷新，否则锁不会生效
}
/// <summary>
/// 存储实体到数据库
/// </summary>
/// <param name="entity"></param>
public void Save(T entity)
{
HibernateTemplate.Save(entity);
}
/// <summary>
/// 实现实体列表的保存
/// </summary>
/// <param name="entities"></param>
public void SaveAll(List<T> entities)
{
//for (int i = 0; i < entities.Count; i++)
//{
// HibernateTemplate.Save(entities[i]);
//}
var session = SessionFactory.OpenStatelessSession();
using (var tx = session.BeginTransaction())
{
foreach (var entity in entities)
{
session.Insert(entity);
}
tx.Commit();
}
session.Close();
}
/// <summary>
/// 增加或更新
/// </summary>
/// <param name="entity"></param>
public void SaveOrUpdate(T entity)
{
HibernateTemplate.SaveOrUpdate(Session.Merge(entity));
}
/// <summary>
/// 增加或更新集合中的全部实体
/// </summary>
/// <param name="entities"></param>
public void SaveOrUpdateAll(Collection<T> entities)
{
foreach (var ent in entities)
{
HibernateTemplate.SaveOrUpdate(ent);
}
}
/// <summary>
/// 删除指定的实体
/// </summary>
/// <param name="modeentity"></param>
public void Delete(T modeentity)
{
HibernateTemplate.Delete(modeentity);
}
public int Delete(string queryString)
{
return HibernateTemplate.Delete(queryString);
}
/// <summary>
/// 带参数的删除语句，可实现批量删除
/// </summary>
/// <param name="queryString"></param>
/// <param name="values"></param>
/// <param name="types"></param>
public void Delete(string queryString,object[] values,NHibernate.Type.IType[] types)
{
HibernateTemplate.Delete(queryString,values,types);
}
/// <summary>
/// 加锁并删除指定的实体
/// </summary>
/// <param name="entity"></param>
/// <param name="locked"></param>
public void DeleteWithLock(T entity, LockMode locked)
{
HibernateTemplate.Delete(entity, locked);
HibernateTemplate.Flush(); // 立即刷新，否则锁不会生效�?
}
/// <summary>
/// 根据主键删除指定实体
/// </summary>
/// <param name="id">主键ID</param>
public void DeleteByKey(TK id)
{
Delete(Load(id));
}
/// <summary>
/// 根据主键加锁并删除指定的实体
/// </summary>
/// <param name="id">主键ID</param>
/// <param name="locked">锁</param>
public void DeleteByKeyWithLock(TK id, LockMode locked)
{
DeleteWithLock(Load(id),
locked);
}
/// <summary>
/// 删除集合信息
/// </summary>
/// <param name="entities"></param>
public void DeleteAll(Collection<T> entities)
{
foreach (var entitie in entities)
{
HibernateTemplate.Delete(entitie);
}
}
public int UpdateHQL(string hql)
{
IQuery iQuery = this.GetSession().CreateQuery(hql);
return iQuery.ExecuteUpdate();
}
/// <summary>
/// 删除集合信息
/// </summary>
/// <param name="entities"></param>
public void DeleteAll(List<T> entities)
{
foreach (var entitie in entities)
{
HibernateTemplate.Delete(entitie);
}
}
// -------------------- 基本增加修改删除操作结束--------------------
// ---------------------- HSQL语句查询--------------------
/// <summary>
/// 返回总记录数
/// </summary>
/// <param name="countHql"></param>
/// <param name="values"></param>
/// <returns></returns>
public int CountHql(string countHql, object[] values)
{
countHql = "select count(*) " + RemoveSelectAndOrder(countHql);
IQuery iQuery = this.GetSession().CreateQuery(countHql);
for (int i = 0; i < values.Count(); i++)
{
iQuery.SetParameter(i, values[i]);
}
return int.Parse(iQuery.UniqueResult().ToString());
}
/// <summary>
/// 使用hql获取分页,实体列表
/// </summary>
/// <param name="hql"></param>
/// <param name="values"></param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <returns></returns>
public List<T> FindListByHql(string hql, object[] values, int pageIndex, int pageSize)
{
IQuery iQuery = this.GetSession().CreateQuery(hql);
for (int i = 0; i < values.Count(); i++)
{
iQuery.SetParameter(i, values[i]);
}
var list = (List<T>)iQuery.SetFirstResult((pageIndex - 1) * pageSize)
.SetMaxResults(pageSize).List<T>();
return list;
}
/// <summary>
/// 使用hql获取分页,实体列表
/// </summary>
/// <param name="hql"></param>
/// <param name="paramNames"></param>
/// <param name="values"></param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <returns></returns>
public List<T> FindListByHql(string hql, string[] paramNames, object[] values, int pageIndex, int pageSize)
{
IQuery iQuery = this.GetSession().CreateQuery(hql);
for (int i = 0; i < values.Count(); i++)
{
iQuery.SetParameter(paramNames[i], values[i]);
}
var list = (List<T>)iQuery.SetFirstResult((pageIndex - 1) * pageSize)
.SetMaxResults(pageSize).List<T>();
return list;
}
/// <summary>
/// 使用hql获取分页,数组列表
/// </summary>
/// <param name="hql"></param>
/// <param name="values"></param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <returns></returns>
public List<object[]> FindObjsByHql(string hql, object[] values, int pageIndex, int pageSize)
{
IQuery iQuery = this.GetSession().CreateQuery(hql);
for (int i = 0; i < values.Count(); i++)
{
iQuery.SetParameter(i, values[i]);
}
var list = (List<object[]>)iQuery.SetFirstResult((pageIndex - 1) * pageSize)
.SetMaxResults(pageSize)
.List<object[]>();
return list;
}
/// <summary>
/// 使用hql获取分页,数组列表
/// </summary>
/// <param name="hql"></param>
/// <param name="values"></param>
/// <returns></returns>
public List<object[]> FindObjsByHql(string hql, object[] values)
{
IQuery iQuery = this.GetSession().CreateQuery(hql);
if(values !=null)
for (int i = 0; i < values.Count(); i++)
{
iQuery.SetParameter(i, values[i]);
}
var list = (List<object[]>)iQuery.List<object[]>();
return list;
}
/// <summary>
/// 使用hql获取分页,数组列表
/// </summary>
/// <param name="hql"></param>
/// <param name="paramNames"></param>
/// <param name="values"></param>
/// <param name="pageIndex"></param>
/// <param name="pageSize"></param>
/// <returns></returns>
public List<object[]> FindObjsByHql(string hql, string[] paramNames, object[] values, int pageIndex, int pageSize)
{
IQuery iQuery = this.GetSession().CreateQuery(hql);
for (int i = 0; i < values.Count(); i++)
{
iQuery.SetParameter(paramNames[i], values[i]);
}
var list = (List<object[]>)iQuery.SetFirstResult((pageIndex - 1) * pageSize)
.SetMaxResults(pageSize)
.List<object[]>();
return list;
}
/// <summary>
/// 使用HSQL语句查询数据
/// </summary>
/// <param name="queryString"></param>
/// <returns></returns>
public List<T> Find(String queryString)
{
return HibernateTemplate.Find<T>(queryString).ToList();
}
/// <summary>
/// 使用带参数的HSQL语句查询指定数据
/// </summary>
/// <param name="queryString">HQL语句</param>
/// <param name="values">值集合</param>
/// <returns>结果集</returns>
public List<T> Find(String queryString, Object[] values)
{
return HibernateTemplate.Find<T>(queryString, values).ToList();
}
/// <summary>
/// 使用带命名的参数的HSQL语句查询数据
/// </summary>
/// <param name="queryString">HQL语句</param>
/// <param name="paramNames">参数名称集合</param>
/// <param name="values">值结合</param>
/// <returns>结果集</returns>
public List<T> FindByNamedParam(string queryString, string[] paramNames,
Object[] values)
{
return HibernateTemplate.FindByNamedParam<T>(queryString, paramNames,
values).ToList();
}
/// <summary>
/// 使用命名的HSQL语句查询数据
/// </summary>
/// <param name="queryName">HQL语句</param>
/// <returns>结果集</returns>
public List<T> FindByNamedQuery(String queryName)
{
return HibernateTemplate.FindByNamedQuery<T>(queryName).ToList();
}
/// <summary>
/// 使用带参数的命名HSQL语句查询数据
/// </summary>
/// <param name="queryName"></param>
/// <param name="values"></param>
/// <returns></returns>
public List<T> FindByNamedQuery(String queryName, Object[] values)
{
return HibernateTemplate.FindByNamedQuery<T>(queryName, values).ToList();
}
/// <summary>
/// 使用带命名参数的命名HSQL语句查询数据
/// </summary>
/// <param name="queryName"></param>
/// <param name="paramNames"></param>
/// <param name="values"></param>
/// <returns></returns>
public List<T> FindByNamedQueryAndNamedParam(String queryName,
String[] paramNames, Object[] values)
{
return HibernateTemplate.FindByNamedQueryAndNamedParam<T>(queryName,
paramNames, values).ToList();
}
// ---------------------- HSQL语句查询结束--------------------
// -------------------------------- Criteria ------------------------------
/// <summary>
/// 创建与会话无关的Criteria标准
/// </summary>
/// <returns></returns>
public DetachedCriteria CreateDetachedCriteria()
{
return DetachedCriteria.For<T>();
}
/// <summary>
/// 创建与会话绑定的Criteria标准
/// </summary>
/// <returns></returns>
public NHibernate.ICriteria CreateCriteria()
{
return this.GetSession().CreateCriteria<T>();
}
// -------------------------------- Criteria 结束------------------------------
//--------------------------------复合查询2-----------------------------------
/// <summary>
/// DetachedCriteria满足标准的数据
/// </summary>
/// <param name="detachedCriteria"> </param>
/// <returns>对象结果集</returns>
public IList<T> FindByCriteria(DetachedCriteria detachedCriteria)
{
ICriteria iCriteria = detachedCriteria.GetExecutableCriteria(GetSession());
return iCriteria.List<T>();
//var entityType = HibernateTemplate.Execute(new HibernateDelegate<IList<T>>(delegate(ISession session)
//{
// ICriteria iCriteria = detachedCriteria.GetExecutableCriteria(session);
// return iCriteria.List<T>();
//}));
//return entityType;
}
/// <summary>
/// DetachedCriteria满足标准的数据，返回指定范围的记�?
/// </summary>
/// <param name="detachedCriteria"> </param>
/// <param name="firstResult"></param>
/// <param name="maxResults"></param>
/// <returns></returns>
public IList<T> FindByCriteria(DetachedCriteria detachedCriteria, int firstResult,
int maxResults)
{
detachedCriteria.SetFirstResult(firstResult).SetMaxResults(maxResults);
ICriteria iCriteria = detachedCriteria.GetExecutableCriteria(GetSession());
return iCriteria.List<T>();
//detachedCriteria.SetFirstResult(firstResult).SetMaxResults(maxResults);
//var entityType = HibernateTemplate.Execute(new HibernateDelegate<IList<T>>(delegate(ISession session)
//{
// if (session == null) throw new ArgumentNullException("session");
// ICriteria iCriteria = detachedCriteria.GetExecutableCriteria(session);
// return iCriteria.List<T>();
//}));
//return entityType;
}
/// <summary>
/// “复杂条件”实体对象列表
/// 注意：没有关闭Session!
/// (criteria是criterion的复数) 标准
/// </summary>
public IList<T> GetEntities(ICriterion iCriterion)
{
//这是参考E:\NHibernate\Spring.net\官网下载\Spring.NET-1.3.2\Spring.NET\src\Spring\Spring.Data.NHibernate12\Data\NHibernate\Generic\ HibernateTemplate.cs
//取集合的，别有取单个实体的!
//exposeNativeSession的作用：（取自spring.net）
//(exposeNativeSession ? session : classic HibernateTemplate.CreateSessionProxy(session));
return HibernateTemplate.ExecuteFind(new FindByCriterionHibernateCallback<T>(iCriterion), true);
}
//--------------------------------复合查询2结束-----------------------------------
//*********************************linq查询方式*****************************
/// <summary>
/// 使用linq查询数据
/// </summary>
/// <returns></returns>
public IQueryable<T> FindByLinq()
{
return this.GetSession().Query<T>();
}
//*********************************linq查询方式结束*****************************
//-----------------------------------存储过程------------------------------------
#region IList ExecuteStoredProc(string spName, ICollection<ParamInfo> paramInfos)
public IList ExecuteStoredProc(string spName, ICollection<ParamInfo> paramInfos)
{
IList result = new ArrayList();
IDbCommand cmd = this.GetSession().Connection.CreateCommand();
cmd.CommandText = spName;
cmd.CommandType = CommandType.StoredProcedure;
// 加入参数
if (paramInfos != null)
{
foreach (ParamInfo info in paramInfos)
{
IDbDataParameter parameter = cmd.CreateParameter();
parameter.ParameterName = info.Name; // driver.FormatNameForSql( info.Name );
parameter.Value = info.Value;
cmd.Parameters.Add(parameter);
}
}
IDbConnection conn = GetSession().Connection;
//conn.Open();
try
{
cmd.Connection = conn;
IDataReader rs = cmd.ExecuteReader();
while (rs.Read())
{
var fieldCount = rs.FieldCount;
var values = new Object[fieldCount];
for (int i = 0; i < fieldCount; i++)
values[i] = rs.GetValue(i);
result.Add(values);
}
}
finally
{
this.GetSession().Connection.Close();
}
return result;
}
public IDataReader GetDataReaderStoredProc(string spName, ICollection<ParamInfo> paramInfos)
{
IDbCommand cmd = this.GetSession().Connection.CreateCommand();
cmd.CommandText = spName;
cmd.CommandType = CommandType.StoredProcedure;
// 加入参数
if (paramInfos != null)
{
foreach (ParamInfo info in paramInfos)
{
IDbDataParameter parameter = cmd.CreateParameter();
parameter.ParameterName = info.Name; // driver.FormatNameForSql( info.Name );
parameter.Value = info.Value;
cmd.Parameters.Add(parameter);
}
}
IDbConnection conn = GetSession().Connection;
//conn.Open();
IDataReader rs = null;
try
{
cmd.Connection = conn;
rs = cmd.ExecuteReader();
}
finally
{
this.GetSession().Connection.Close();
}
return rs;
}
#endregion
//-----------------------------------存储过程结束----------------------------------------
//***********************************其他***************************************
/// <summary>
/// 未实现强制初始化指定的实体
/// </summary>
/// <param name="proxy"></param>
public void Initialize(object proxy)
{
throw new NotImplementedException();
}
/// <summary>
/// 强制立即更新缓冲数据到数据库（否则仅在事务提交时才更新）
/// </summary>
public void Flush()
{
HibernateTemplate.Flush();
}
/// <summary>
/// 获取Session
/// </summary>
/// <returns></returns>
public ISession GetSession()
{
return this.Session;
}
/// <summary>
/// 关闭session
/// </summary>
public void CloseSession()
{
this.Session.Close();
}
/// <summary>
/// 强制立即缓冲数据
/// </summary>
public void Clear()
{
HibernateTemplate.Clear();
}
/// <summary>
/// 去掉hql中的select和order
/// </summary>
/// <param name="hql"></param>
/// <returns></returns>
public string RemoveSelectAndOrder(string hql)
{
string hql_ = hql.ToLower();
int beginPos = hql_.IndexOf("from");
if (beginPos != -1)
hql_ = hql.Substring(beginPos);
beginPos = hql_.IndexOf("order");
if (beginPos != -1)
hql_ = hql_.Substring(0, beginPos);
return hql_;
}
//***********************************其他结束***************************************
//***********************************************************内部类*********************************
internal class HibernateCallback<TH> : IHibernateCallback
{
private DetachedCriteria DCriteria{ set; get; }
public HibernateCallback( DetachedCriteria dCriteria)
{
DCriteria = dCriteria;
}
public Object DoInHibernate(ISession session)
{
ICriteria criteri = DCriteria.GetExecutableCriteria(session);
return criteri.List<TH>();
}
}
internal class FindByCriterionHibernateCallback<TT> : IFindHibernateCallback<TT>
{
private ICriterion ic;
public FindByCriterionHibernateCallback(ICriterion iCriterion)
{
ic = iCriterion;
}
/// <summary>
/// Gets called by HibernateTemplate with an active
/// Hibernate Session. Does not need to care about activating or closing
/// the Session, or handling transactions.
/// </summary>
/// <remarks>
/// <p>
/// Allows for returning a result object created within the callback, i.e.
/// a domain object or a collection of domain objects. Note that there's
/// special support for single step actions: see HibernateTemplate.find etc.
/// </p>
/// </remarks>
public IList<TT> DoInHibernate(ISession session)
{
var criteria = session.CreateCriteria(typeof(TT));
criteria.Add(ic);
var entities = criteria.List<TT>();
return entities;
}
}
//***********************************************************内部类结束*********************************
}
}
