Transaction.EnlistVolatile メソッド

public:
 System::Transactions::Enlistment ^ EnlistVolatile(System::Transactions::IEnlistmentNotification ^ enlistmentNotification, System::Transactions::EnlistmentOptions enlistmentOptions);

public:
 System::Transactions::Enlistment ^ EnlistVolatile(System::Transactions::IEnlistmentNotification ^ notification, System::Transactions::EnlistmentOptions options);

public System.Transactions.Enlistment EnlistVolatile (System.Transactions.IEnlistmentNotification enlistmentNotification, System.Transactions.EnlistmentOptions enlistmentOptions);

public System.Transactions.Enlistment EnlistVolatile (System.Transactions.IEnlistmentNotification notification, System.Transactions.EnlistmentOptions options);

member this.EnlistVolatile : System.Transactions.IEnlistmentNotification * System.Transactions.EnlistmentOptions -> System.Transactions.Enlistment

member this.EnlistVolatile : System.Transactions.IEnlistmentNotification * System.Transactions.EnlistmentOptions -> System.Transactions.Enlistment

Public Function EnlistVolatile (enlistmentNotification As IEnlistmentNotification, enlistmentOptions As EnlistmentOptions) As Enlistment

Public Function EnlistVolatile (notification As IEnlistmentNotification, options As EnlistmentOptions) As Enlistment

パラメーター

戻り値

Enlistment

参加リストについて記述している Enlistmentオブジェクト。

例

次の例は、インターフェイスの IEnlistmentNotification 実装と、メソッドを使用してオブジェクトをトランザクションの参加者として参加させる方法を EnlistVolatile 示しています。

static void Main(string[] args)
{
    try
    {
        using (TransactionScope scope = new TransactionScope())
        {
        
            //Create an enlistment object
            myEnlistmentClass myElistment = new myEnlistmentClass();

            //Enlist on the current transaction with the enlistment object
            Transaction.Current.EnlistVolatile(myElistment, EnlistmentOptions.None);

            //Perform transactional work here.

            //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'))
                {
                    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;
    }
}

class myEnlistmentClass : IEnlistmentNotification
{
    public void Prepare(PreparingEnlistment preparingEnlistment)
    {
        Console.WriteLine("Prepare notification received");

        //Perform transactional work

        //If work finished correctly, reply prepared
        preparingEnlistment.Prepared();

        // otherwise, do a ForceRollback
        preparingEnlistment.ForceRollback();
    }

    public void Commit(Enlistment enlistment)
    {
        Console.WriteLine("Commit notification received");

        //Do any work necessary when commit notification is received

        //Declare done on the enlistment
        enlistment.Done();
    }

    public void Rollback(Enlistment enlistment)
    {
        Console.WriteLine("Rollback notification received");

        //Do any work necessary when rollback notification is received

        //Declare done on the enlistment
        enlistment.Done();
    }

    public void InDoubt(Enlistment enlistment)
    {
        Console.WriteLine("In doubt notification received");

        //Do any work necessary when indout notification is received
        
        //Declare done on the enlistment
        enlistment.Done();
    }
}

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

                'Create an enlistment object
                Dim myEnlistmentClass As New EnlistmentClass

                'Enlist on the current transaction with the enlistment object
                Transaction.Current.EnlistVolatile(myEnlistmentClass, EnlistmentOptions.None)

                'Perform transactional work here.

                '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
End Class

Public Class EnlistmentClass
    Implements IEnlistmentNotification

    Public Sub Prepare(ByVal myPreparingEnlistment As PreparingEnlistment) Implements System.Transactions.IEnlistmentNotification.Prepare
        Console.WriteLine("Prepare notification received")

        'Perform transactional work

        'If work finished correctly, reply with prepared
        myPreparingEnlistment.Prepared()
    End Sub

    Public Sub Commit(ByVal myEnlistment As Enlistment) Implements System.Transactions.IEnlistmentNotification.Commit
        Console.WriteLine("Commit notification received")

        'Do any work necessary when commit notification is received

        'Declare done on the enlistment
        myEnlistment.Done()
    End Sub

    Public Sub Rollback(ByVal myEnlistment As Enlistment) Implements System.Transactions.IEnlistmentNotification.Rollback
        Console.WriteLine("Rollback notification received")

        'Do any work necessary when rollback notification is received

        'Declare done on the enlistment
        myEnlistment.Done()
    End Sub

    Public Sub InDoubt(ByVal myEnlistment As Enlistment) Implements System.Transactions.IEnlistmentNotification.InDoubt
        Console.WriteLine("In doubt notification received")

        'Do any work necessary when indout notification is received

        'Declare done on the enlistment
        myEnlistment.Done()
    End Sub
End Class

注釈

揮発性リソース マネージャーは、参加していたトランザクションの完了に失敗した場合、復旧できません。 トランザクションに永続的な参加リストを取得するには、このメソッドを EnlistDurable 使用します。

このメソッドを使用してトランザクションに参加するために参加するリソース マネージャーは、インターフェイスで定義されているメソッドに対応する 2 つのフェーズ コミット通知を IEnlistmentNotification 受け取ります。

public:
 System::Transactions::Enlistment ^ EnlistVolatile(System::Transactions::ISinglePhaseNotification ^ singlePhaseNotification, System::Transactions::EnlistmentOptions enlistmentOptions);

public:
 System::Transactions::Enlistment ^ EnlistVolatile(System::Transactions::ISinglePhaseNotification ^ notification, System::Transactions::EnlistmentOptions options);

public System.Transactions.Enlistment EnlistVolatile (System.Transactions.ISinglePhaseNotification singlePhaseNotification, System.Transactions.EnlistmentOptions enlistmentOptions);

public System.Transactions.Enlistment EnlistVolatile (System.Transactions.ISinglePhaseNotification notification, System.Transactions.EnlistmentOptions options);

member this.EnlistVolatile : System.Transactions.ISinglePhaseNotification * System.Transactions.EnlistmentOptions -> System.Transactions.Enlistment

member this.EnlistVolatile : System.Transactions.ISinglePhaseNotification * System.Transactions.EnlistmentOptions -> System.Transactions.Enlistment

Public Function EnlistVolatile (singlePhaseNotification As ISinglePhaseNotification, enlistmentOptions As EnlistmentOptions) As Enlistment

Public Function EnlistVolatile (notification As ISinglePhaseNotification, options As EnlistmentOptions) As Enlistment

パラメーター

戻り値

Enlistment

参加リストについて記述している Enlistmentオブジェクト。

注釈

揮発性リソース マネージャーは、参加していたトランザクションの完了に失敗した場合、復旧できません。 トランザクションに永続的な参加リストを取得するには、このメソッドを EnlistDurable 使用します。 揮発性および持続性のあるリソースの詳細と、リソースに参加する方法については、「Resource Managerの実装」を参照してください。 リソース マネージャーがコミット通知に応答してコミットを準備する方法の詳細については、「 Single-Phaseおよびマルチフェーズでのトランザクションのコミット」を参照してください。

リソース マネージャーの実装がこのメソッドに参加する場合でも、単一フェーズ コミットを受け取る保証はされないことに注意してください。 トランザクション マネージャーは、代わりに 2 つのフェーズ コミット通知を送信できます。 単一フェーズ コミットの最適化の詳細については、「 単一フェーズ コミットを使用した最適化」および「昇格可能な単一フェーズ通知」を参照してください。

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• リソース マネージャーの実装