public static bool BeginTransation(string conn, IsolationLevel level)
{
string key = StaticTool.GetTransationKey(conn);
if (!TransationKeys.ContainsKey(key))
{
TransationKeys.Add(key, level);
return(true);
}
return(false);
}
/// <summary>
/// 事务回滚
/// </summary>
public static bool RollBack(string conn)
{
string key = StaticTool.GetTransationKey(conn);
TransationKeys.Remove(key);
DalBase dal = DalCreate.Get(key);
if (dal != null && dal.RollBack())
{
dal.Dispose();
return(DalCreate.Remove(key));
}
return(false);
}
/// <summary>
/// 提交事务
/// </summary>
public static bool EndTransation(string conn)
{
string key = StaticTool.GetTransationKey(conn);
TransationKeys.Remove(key);
DalBase dal = DalCreate.Get(key);
if (dal != null && dal.EndTransaction())//如果事务回滚了，
{
dal.Dispose();
return(DalCreate.Remove(key));
}
return(false);
}
public void Dispose()
{
string key = StaticTool.GetTransationKey(UsingConnBean.ConnName);
if (DBFast.HasTransation(key))
{
return;//全局事务由全局控制（全局事务会在移除key后重新调用）。
}
if (_con != null)
{
CloseCon();
_con = null;
}
if (_com != null)
{
_com.Dispose();
_com = null;
}
if (_watch != null)
{
_watch = null;
}
}
/// <summary>
/// 简单工厂（Factory Method）
/// </summary>
public static DalBase CreateDal(string connNameOrString)
{
string key = StaticTool.GetTransationKey(connNameOrString);
//检测是否开启了全局事务;
bool isTrans = DBFast.HasTransation(key);
if (isTrans)
{
if (dalBaseDic.ContainsKey(key))
{
return(dalBaseDic[key]);
}
}
DalBase dal = CreateDalBase(connNameOrString);
if (isTrans)
{
dal.TranLevel = DBFast.GetTransationLevel(key);
dal.IsOpenTrans = true;
dalBaseDic.Add(key, dal);
}
return(dal);
}