SynchronizationOption Enum
Definition
Important
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Specifies the type of automatic synchronization requested by the component.
public enum class SynchronizationOption
[System.Serializable]
public enum SynchronizationOption
[<System.Serializable>]
type SynchronizationOption =
Public Enum SynchronizationOption
- Inheritance
- Attributes
Fields
Name | Value | Description |
---|---|---|
Disabled | 0 | COM+ ignores the synchronization requirements of the component when determining context for the object. |
NotSupported | 1 | An object with this value never participates in synchronization, regardless of the status of its caller. This setting is only available for components that are non-transactional and do not use just-in-time (JIT) activation. |
Supported | 2 | An object with this value participates in synchronization, if it exists. |
Required | 3 | Ensures that all objects created from the component are synchronized. |
RequiresNew | 4 | An object with this value must participate in a new synchronization where COM+ manages contexts and apartments on behalf of all components involved in the call. |
Examples
The following code example demonstrates the use of the SynchronizationOption type.
#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