/// <summary>
/// 如果与方法 BeginTransaction 匹配，则提交数据库事务。
/// </summary>
/// <returns>成功提交事务则为 true，否则为 false。</returns>
public virtual bool CommitTransaction()
{
if (_transactionScope == null)
{
return(false);
}
Tracer.Debug("Commiting transcation.");
_transaction.Commit();
_connMaster?.TryClose();
_transactionScope.Dispose();
_transaction = null;
_transactionScope = null;
return(true);
}
/// <summary>
/// 如果与方法 BeginTransaction 匹配，则回滚数据库事务。
/// </summary>
/// <returns>成功回滚事务则为 true，否则为 false。</returns>
public virtual bool RollbackTransaction()
{
if (_transactionScope == null)
{
return(false);
}
Tracer.Debug("Rollbacking transcation.");
_transaction.Rollback();
_connMaster?.TryClose();
_transactionScope.Dispose();
_transaction = null;
_transactionScope = null;
return(true);
}
/// <summary>
/// 使用指定锁定行为启动一个数据库事务。
/// </summary>
/// <param name="level">事务的锁定行为。</param>
/// <returns>如果当前实例首次启动事务，则为 true，否则为 false。</returns>
public virtual bool BeginTransaction(IsolationLevel level = IsolationLevel.ReadCommitted)
{
if (Transaction != null)
{
return(false);
}
if (TransactionScopeConnections.GetConnection(this) != null)
{
return(false);
}
Connection.TryOpen();
Tracer.Debug("Starting transcation.");
_transaction = Connection.BeginTransaction(Provider.AmendIsolationLevel(level));
_transactionScope = new DbTransactionScope(ConnectionString, _transaction);
return(true);
}
