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SynchronizationOption Wyliczenie

Definicja

Określa typ automatycznej synchronizacji żądanej przez składnik.

public enum class SynchronizationOption
[System.Serializable]
public enum SynchronizationOption
[<System.Serializable>]
type SynchronizationOption = 
Public Enum SynchronizationOption
Dziedziczenie
SynchronizationOption
Atrybuty

Pola

Disabled 0

Com+ ignoruje wymagania dotyczące synchronizacji składnika podczas określania kontekstu dla obiektu.

NotSupported 1

Obiekt o tej wartości nigdy nie uczestniczy w synchronizacji, niezależnie od stanu obiektu wywołującego. To ustawienie jest dostępne tylko dla składników, które nie są transakcyjne i nie używają aktywacji just in time (JIT).

Required 3

Zapewnia synchronizację wszystkich obiektów utworzonych na podstawie składnika.

RequiresNew 4

Obiekt o tej wartości musi uczestniczyć w nowej synchronizacji, w której com+ zarządza kontekstami i apartamentami w imieniu wszystkich składników zaangażowanych w wywołanie.

Supported 2

Obiekt o tej wartości uczestniczy w synchronizacji, jeśli istnieje.

Przykłady

W poniższym przykładzie kodu pokazano użycie SynchronizationOption typu .

#using <System.EnterpriseServices.dll>

using namespace System;
using namespace System::EnterpriseServices;

// References:
// System.EnterpriseServices

// An instance of this class will not join an activity, but can share its
// caller's context even if its caller is configured as NotSupported,
// Supported, Required, or RequiresNew.
[Synchronization(SynchronizationOption::Disabled)]
public ref class SynchronizationAttribute_SynchronizationDisabled :
    public ServicedComponent
{
};

// An instance of this class will not join an activity, and will share its
// caller's context only if its caller is also configured as NotSupported.
[Synchronization(SynchronizationOption::NotSupported)]
public ref class SynchronizationAttribute_SynchronizationNotSupported :
    public ServicedComponent
{
};

// An instance of this class will join its caller's activity if one exists.
[Synchronization(SynchronizationOption::Supported)]
public ref class SynchronizationAttribute_SynchronizationSupported :
    public ServicedComponent
{
};

// An instance of this class will join its caller's activity if one exists.
// If not, a new activity will be created for it.
[Synchronization(SynchronizationOption::Required)]
public ref class SynchronizationAttribute_SynchronizationRequired :
    public ServicedComponent
{
};

// A new activity will always be created for an instance of this class.
[Synchronization(SynchronizationOption::RequiresNew)]
public ref class SynchronizationAttribute_SynchronizationRequiresNew :
    public ServicedComponent
{
};
using System;
using System.EnterpriseServices;
using System.Reflection;

// References:
// System.EnterpriseServices

// An instance of this class will not join an activity, but can share its
// caller's context even if its caller is configured as NotSupported,
// Supported, Required, or RequiresNew.
[Synchronization(SynchronizationOption.Disabled)]
public class SynchronizationAttribute_SynchronizationDisabled :
    ServicedComponent
{
}

// An instance of this class will not join an activity, and will share its
// caller's context only if its caller is also configured as NotSupported.
[Synchronization(SynchronizationOption.NotSupported)]
public class SynchronizationAttribute_SynchronizationNotSupported :
    ServicedComponent
{
}

// An instance of this class will join its caller's activity if one exists.
[Synchronization(SynchronizationOption.Supported)]
public class SynchronizationAttribute_SynchronizationSupported :
    ServicedComponent
{
}

// An instance of this class will join its caller's activity if one exists.
// If not, a new activity will be created for it.
[Synchronization(SynchronizationOption.Required)]
public class SynchronizationAttribute_SynchronizationRequired :
    ServicedComponent
{
}

// A new activity will always be created for an instance of this class.
[Synchronization(SynchronizationOption.RequiresNew)]
public class SynchronizationAttribute_SynchronizationRequiresNew :
    ServicedComponent
{
}
Imports System.EnterpriseServices
Imports System.Reflection


' References:
' System.EnterpriseServices

' An instance of this class will not join an activity, but can share its
' caller's context even if its caller is configured as NotSupported,
' Supported, Required, or RequiresNew.
<Synchronization(SynchronizationOption.Disabled)>  _
Public Class SynchronizationAttribute_SynchronizationDisabled
    Inherits ServicedComponent
End Class

' An instance of this class will not join an activity, and will share its
' caller's context only if its caller is also configured as NotSupported.
<Synchronization(SynchronizationOption.NotSupported)>  _
Public Class SynchronizationAttribute_SynchronizationNotSupported
    Inherits ServicedComponent
End Class

' An instance of this class will join its caller's activity if one exists.
<Synchronization(SynchronizationOption.Supported)>  _
Public Class SynchronizationAttribute_SynchronizationSupported
    Inherits ServicedComponent
End Class

' An instance of this class will join its caller's activity if one exists.
' If not, a new activity will be created for it.
<Synchronization(SynchronizationOption.Required)>  _
Public Class SynchronizationAttribute_SynchronizationRequired
    Inherits ServicedComponent
End Class

' A new activity will always be created for an instance of this class.
<Synchronization(SynchronizationOption.RequiresNew)>  _
Public Class SynchronizationAttribute_SynchronizationRequiresNew
    Inherits ServicedComponent
End Class

Dotyczy