Transaction.DependentClone(DependentCloneOption) 메서드

정의

네임스페이스:

System.Transactions

어셈블리:

System.Transactions.Local.dll

어셈블리:

System.Transactions.dll

어셈블리:

netstandard.dll

트랜잭션의 종속 복제본을 만듭니다.

public:
 System::Transactions::DependentTransaction ^ DependentClone(System::Transactions::DependentCloneOption cloneOption);

public:
 System::Transactions::DependentTransaction ^ DependentClone(System::Transactions::DependentCloneOption option);

public System.Transactions.DependentTransaction DependentClone (System.Transactions.DependentCloneOption cloneOption);

public System.Transactions.DependentTransaction DependentClone (System.Transactions.DependentCloneOption option);

member this.DependentClone : System.Transactions.DependentCloneOption -> System.Transactions.DependentTransaction

member this.DependentClone : System.Transactions.DependentCloneOption -> System.Transactions.DependentTransaction

Public Function DependentClone (cloneOption As DependentCloneOption) As DependentTransaction

Public Function DependentClone (option As DependentCloneOption) As DependentTransaction

매개 변수

cloneOptionoption

DependentCloneOption

만들려는 종속 트랜잭션의 종류를 제어하는 DependentCloneOption입니다.

반환

DependentTransaction

종속 복제본을 나타내는 DependentTransaction입니다.

예제

다음 예제에서는 종속 트랜잭션을 만드는 방법을 보여줍니다.

static void Main(string[] args)
{
    try
    {
        using (TransactionScope scope = new TransactionScope())
        {
            // Perform transactional work here.

            //Queue work item
            ThreadPool.QueueUserWorkItem(new WaitCallback(WorkerThread), Transaction.Current.DependentClone(DependentCloneOption.BlockCommitUntilComplete));

            //Display transaction information
            Console.WriteLine("Transaction information:");
            Console.WriteLine("ID:             {0}", Transaction.Current.TransactionInformation.LocalIdentifier);
            Console.WriteLine("status:         {0}", Transaction.Current.TransactionInformation.Status);
            Console.WriteLine("isolationlevel: {0}", Transaction.Current.IsolationLevel);

            //Call Complete on the TransactionScope based on console input
            ConsoleKeyInfo c;
            while (true)
            {
                            Console.Write("Complete the transaction scope? [Y|N] ");
                c = Console.ReadKey();
                Console.WriteLine();

                if ((c.KeyChar == 'Y') || (c.KeyChar == 'y'))
                {
                    //Call complete on the scope
                    scope.Complete();
                    break;
                }
                else if ((c.KeyChar == 'N') || (c.KeyChar == 'n'))
                {
                    break;
                }
            }
        }
    }
    catch (System.Transactions.TransactionException ex)
    {
        Console.WriteLine(ex);
    }
    catch
    {
        Console.WriteLine("Cannot complete transaction");
        throw;
    }
}

private static void WorkerThread(object transaction)
{
    //Create a DependentTransaction from the object passed to the WorkerThread
    DependentTransaction dTx = (DependentTransaction)transaction;

    //Sleep for 1 second to force the worker thread to delay
    Thread.Sleep(1000);

    //Pass the DependentTransaction to the scope, so that work done in the scope becomes part of the transaction passed to the worker thread
    using (TransactionScope ts = new TransactionScope(dTx))
    {
        //Perform transactional work here.

        //Call complete on the transaction scope
        ts.Complete();
    }

    //Call complete on the dependent transaction
    dTx.Complete();
}

Public Shared Sub Main()
    Try
        Using scope As TransactionScope = New TransactionScope()

            'Perform transactional work here.

            'Queue work item
            ThreadPool.QueueUserWorkItem(AddressOf WorkerThread, Transaction.Current.DependentClone(DependentCloneOption.BlockCommitUntilComplete))

            'Display transaction information
            Console.WriteLine("Transaction information:")
            Console.WriteLine("ID:             {0}", Transaction.Current.TransactionInformation.LocalIdentifier)
            Console.WriteLine("status:         {0}", Transaction.Current.TransactionInformation.Status)
            Console.WriteLine("isolationlevel: {0}", Transaction.Current.IsolationLevel)

            'Call Complete on the TransactionScope based on console input
            Dim c As ConsoleKeyInfo
            While (True)

                Console.Write("Complete the transaction scope? [Y|N] ")
                c = Console.ReadKey()
                Console.WriteLine()
                If (c.KeyChar = "Y") Or (c.KeyChar = "y") Then
                    scope.Complete()
                    Exit While
                ElseIf ((c.KeyChar = "N") Or (c.KeyChar = "n")) Then
                    Exit While
                End If
            End While
        End Using

    Catch ex As TransactionException
        Console.WriteLine(ex)
    Catch
        Console.WriteLine("Cannot complete transaction")
        Throw
    End Try
End Sub

Public Shared Sub WorkerThread(ByVal myTransaction As Object)

    'Create a DependentTransaction from the object passed to the WorkerThread
    Dim dTx As DependentTransaction
    dTx = CType(myTransaction, DependentTransaction)

    'Sleep for 1 second to force the worker thread to delay
    Thread.Sleep(1000)

    'Pass the DependentTransaction to the scope, so that work done in the scope becomes part of the transaction passed to the worker thread
    Using ts As TransactionScope = New TransactionScope(dTx)
        'Perform transactional work here.

        'Call complete on the transaction scope
        ts.Complete()
    End Using

    'Call complete on the dependent transaction
    dTx.Complete()
End Sub

설명

종속 트랜잭션은 복제된 트랜잭션의 결과에 따라 결과가 달라지는 트랜잭션입니다.

매개 변수는 cloneoption 만들 종속 트랜잭션의 종류를 제어합니다. 종속 트랜잭션을 사용하여 만든 BlockCommitUntilComplete경우 트랜잭션 시간이 초과되거나 Complete DependentTransaction호출될 때까지 트랜잭션의 커밋 프로세스를 차단합니다. 이 값을 사용하여 RollbackIfNotComplete만든 경우 트랜잭션이 호출되기 전에 Complete 호출DependentTransaction되면 Commit 트랜잭션이 자동으로 중단됩니다.

추가 정보

• DependentTransaction을 사용하여 동시성 관리