/// <summary>
/// 数据回收操作
/// </summary>
public void Dispose()
{
if (!this._isDisposed && _daoTransactionScopeList.Count > 0)
{
if (!this._isComplete)
{
this._isUnComplete = true;
}
string currentFlag = "";
for (int i = 0; i < _daoTransactionScopeList.Count; i++)
{
//if (DaoTransactionScopeList[i] == this)
//{
if (currentFlag == "")
currentFlag = DaoTransactionScopeList[i].CurrentFlag;
_dataAccessInstance = _daoTransactionScopeList[i].DataAccessInstance;
if (_dataAccessInstance != null && !_dataAccessInstance.Disposed && DaoTransactionScopeList[i].CurrentFlag == currentFlag)
{
if ((_dataAccessInstance.State != ConnectionState.Closed) && _dataAccessInstance.IsTransaction)
{
try
{
_dataAccessInstance.RollbackTransaction();
//清理失败的SQL语句
_dataAccessInstance.lastSql = null;
}
catch (Exception exception3)
{
//清理失败的SQL语句
_dataAccessInstance.lastSql = null;
}
finally
{
try
{
_dataAccessInstance.Dispose();
_dataAccessInstance = null;
}
catch { }
}
}
}
_daoTransactionScopeList[i].IsTransacting = false;
}
if (this == _transactionOwner)
{
_transactionOwner = null;
}
for (int i = _daoTransactionScopeList.Count - 1; i >= 0; i--)
{
if (_daoTransactionScopeList[i].IsTransacting == false)
_daoTransactionScopeList.Remove(DaoTransactionScopeList[i]);
}
if (_daoTransactionScopeList.Count > 0)
{
_current = _daoTransactionScopeList[_daoTransactionScopeList.Count - 1];
}
else
{
_current = null;
}
this._isDisposed = true;
}
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="isRequiredTransaction">是否开启事务判断</param>
public DaoTransactionScope(bool isRequiredTransaction)
{
//构建事务标记
if (CurrentFlag == null || CurrentFlag == "")
CurrentFlag = new Random().Next(DateTime.Now.Millisecond).ToString();
//构建事务信息
if ((_daoTransactionScopeList == null) || (_daoTransactionScopeList.Count == 0))
{
if (_daoTransactionScopeList == null)
{
_daoTransactionScopeList = new List<DaoTransactionScope>();
}
_isTransacting = isRequiredTransaction;
_daoTransactionScopeList.Add(this);
_current = this;
if (isRequiredTransaction)
{
_transactionOwner = this;
}
else
{
_transactionOwner = null;
}
_dataAccessInstance = null;
}
else
{
//if (_current == null)
//{
// throw new NullReferenceException("当前的 DaoTransactionScope 对象（DaoTransactionScope.Current 属性值）已不存在。请在后面调用上一层 DaoTransactionScope 对象的 Complete() or Dispose() 方法。");
//}
if (isRequiredTransaction && !_isTransacting)
{
_isTransacting = isRequiredTransaction;
}
_daoTransactionScopeList.Add(this);
_current = this;
if ((_transactionOwner == null) && isRequiredTransaction)
{
_transactionOwner = this;
}
}
}
/// <summary>
/// 实现数据提交信息
/// </summary>
public void Complete()
{
if (this.Disposed)
{
throw new ObjectDisposedException("DaoTransactionScope");
}
if (_current == null)
{
throw new NullReferenceException("当前的 DaoTransactionScope 对象（DaoTransactionScope.Current 属性值）已不存在。请不要重复调用 Complete() 方法。");
}
string currentFlag = "";
for (int i = 0; i < DaoTransactionScopeList.Count; i++)
{
if (currentFlag == "")
currentFlag = DaoTransactionScopeList[i].CurrentFlag;
if (DaoTransactionScopeList[i].IsTransacting && DaoTransactionScopeList[i].CurrentFlag == currentFlag)
{
_dataAccessInstance = DaoTransactionScopeList[i].DataAccessInstance;
if ((_dataAccessInstance != null) && _dataAccessInstance.IsTransaction)
{
_dataAccessInstance.CommitTransaction();
}
//DaoTransactionScopeList.Remove(DaoTransactionScopeList[i]);
DaoTransactionScopeList[i].IsTransacting = false;
try
{
_dataAccessInstance.Dispose();
_dataAccessInstance = null;
}
catch { }
_transactionOwner = null;
}
}
for (int i = DaoTransactionScopeList.Count - 1; i >= 0; i--)
{
if (DaoTransactionScopeList[i].IsTransacting == false)
DaoTransactionScopeList.Remove(DaoTransactionScopeList[i]);
}
this._isComplete = true;
_current = null;
}
