TransactionOption Enumeration
.NET Framework 3.0
Specifies the automatic transaction type requested by the component.
Namespace: System.EnterpriseServices
Assembly: System.EnterpriseServices (in system.enterpriseservices.dll)
Assembly: System.EnterpriseServices (in system.enterpriseservices.dll)
| Member name | Description | |
|---|---|---|
| Disabled | Ignores any transaction in the current context. | |
| NotSupported | Creates the component in a context with no governing transaction. | |
| Required | Shares a transaction, if one exists, and creates a new transaction if necessary. | |
| RequiresNew | Creates the component with a new transaction, regardless of the state of the current context. | |
| Supported | Shares a transaction, if one exists. |
When using the .NET Installation Tool (Regsvcs.exe), the transaction option for a ServicedComponent defaults to Disabled.
The following code example demonstrates the use of the TransactionOption type.
using System; using System.EnterpriseServices; using System.Reflection; // References: // System.EnterpriseServices // An instance of this class will not participate in transactions, but can // share its caller's context even if its caller is configured as // NotSupported, Supported, Required, or RequiresNew. [Transaction(TransactionOption.Disabled)] public class TransactionAttribute_TransactionDisabled : ServicedComponent { } // An instance of this class will not participate in transactions, and will // share its caller's context only if its caller is also configured as // NotSupported. [Transaction(TransactionOption.NotSupported)] public class TransactionAttribute_TransactionNotSupported : ServicedComponent { } // An instance of this class will participate in its caller's transaction // if one exists. [Transaction(TransactionOption.Supported)] public class TransactionAttribute_TransactionSupported : ServicedComponent { } // An instance of this class will participate in its caller's transaction // if one exists. If not, a new transaction will be created for it. [Transaction(TransactionOption.Required)] public class TransactionAttribute_TransactionRequired : ServicedComponent { } // A new transaction will always be created for an instance of this class. [Transaction(TransactionOption.RequiresNew)] public class TransactionAttribute_TransactionRequiresNew : ServicedComponent { }
import System.*;
import System.EnterpriseServices.*;
import System.Reflection.*;
// References:
// System.EnterpriseServices
// An instance of this class will not participate in transactions, but can
// share its caller's context even if its caller is configured as
// NotSupported, Supported, Required, or RequiresNew.
/** @attribute Transaction(TransactionOption.Disabled)
*/
public class TransactionAttribute_TransactionDisabled extends ServicedComponent
{
} //TransactionAttribute_TransactionDisabled
// An instance of this class will not participate in transactions, and will
// share its caller's context only if its caller is also configured as
// NotSupported.
/** @attribute Transaction(TransactionOption.NotSupported)
*/
public class TransactionAttribute_TransactionNotSupported extends
ServicedComponent
{
} //TransactionAttribute_TransactionNotSupported
// An instance of this class will participate in its caller's transaction
// if one exists.
/** @attribute Transaction(TransactionOption.Supported)
*/
public class TransactionAttribute_TransactionSupported extends ServicedComponent
{
} //TransactionAttribute_TransactionSupported
// An instance of this class will participate in its caller's transaction
// if one exists. If not, a new transaction will be created for it.
/** @attribute Transaction(TransactionOption.Required)
*/
public class TransactionAttribute_TransactionRequired extends ServicedComponent
{
} //TransactionAttribute_TransactionRequired
// A new transaction will always be created for an instance of this class.
/** @attribute Transaction(TransactionOption.RequiresNew)
*/
public class TransactionAttribute_TransactionRequiresNew extends
ServicedComponent
{
} //TransactionAttribute_TransactionRequiresNew
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