SynchronizationOption 枚举

定义

命名空间:

System.EnterpriseServices

程序集:

System.EnterpriseServices.dll

指定组件请求的自动同步的类型。

public enum class SynchronizationOption

[System.Serializable]
public enum SynchronizationOption

[<System.Serializable>]
type SynchronizationOption = 

Public Enum SynchronizationOption

继承

Object

ValueType

Enum

SynchronizationOption

属性

SerializableAttribute

字段

Disabled	0	COM+ 在确定对象的上下文时忽略组件的同步要求。
NotSupported	1	具有该值的对象永远不加入同步，而与其调用方的状态无关。 此设置仅适用于不使用实时 (JIT) 激活的非事务性组件。
Required	3	确保从该组件创建的所有对象都是同步的。
RequiresNew	4	具有该值的对象必须加入新同步，在其中 COM+ 管理上下文和单元，这些上下文和单元代表涉及调用的所有组件。
Supported	2	具有该值的对象加入同步（如果它存在）。

示例

下面的代码示例演示如何使用 SynchronizationOption 类型。

#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