TransactionFlowAttribute TransactionFlowAttribute TransactionFlowAttribute TransactionFlowAttribute Class

Definición

Especifica si una operación de servicio acepta las transacciones entrantes de un cliente.Specifies whether a service operation accepts incoming transactions from a client.

public ref class TransactionFlowAttribute sealed : Attribute, System::ServiceModel::Description::IOperationBehavior
[System.AttributeUsage(System.AttributeTargets.Method)]
public sealed class TransactionFlowAttribute : Attribute, System.ServiceModel.Description.IOperationBehavior
type TransactionFlowAttribute = class
    inherit Attribute
    interface IOperationBehavior
Public NotInheritable Class TransactionFlowAttribute
Inherits Attribute
Implements IOperationBehavior
Herencia
TransactionFlowAttributeTransactionFlowAttributeTransactionFlowAttributeTransactionFlowAttribute
Atributos
Implementaciones

Ejemplos

El ejemplo de código siguiente muestra el uso de esta enumeración junto con la clase TransactionFlowOption en el nivel de la operación.The following code example shows the use of this enumeration together with the TransactionFlowOption class at the operation level.

using System;  
using System.ServiceModel;  
using System.Transactions;  

namespace Microsoft.WCF.Documentation  
{  
  [ServiceContract(  
    Namespace="http://microsoft.wcf.documentation",   
    SessionMode=SessionMode.Required  
  )]  
  public interface IBehaviorService  
  {  
    [OperationContract]  
    [TransactionFlow(TransactionFlowOption.Mandatory)]  
    string TxWork(string message);  
  }  

  // Note: To use the TransactionIsolationLevel property, you   
  // must add a reference to the System.Transactions.dll assembly.  
  /* The following service implementation:  
   *   -- Processes messages on one thread at a time  
   *   -- Creates one service object per session  
   *   -- Releases the service object when the transaction commits  
   */  
  [ServiceBehavior(  
    ConcurrencyMode=ConcurrencyMode.Single,  
    InstanceContextMode=InstanceContextMode.PerSession,  
    ReleaseServiceInstanceOnTransactionComplete=true  
  )]  
  public class BehaviorService : IBehaviorService, IDisposable  
  {  
    Guid myID;  

    public BehaviorService()  
    {  
      myID = Guid.NewGuid();  
      Console.WriteLine(  
        "Object "  
        + myID.ToString()  
        + " created.");  
    }  

    /*  
    / * The following operation-level behaviors are specified:  
    / * Always executes under a transaction scope.  
    / * The transaction scope is completed when the operation  
    / * terminates without an unhandled exception.  
    /*  
    [OperationBehavior(  
      TransactionAutoComplete = true,  
      TransactionScopeRequired = true  
    )]  
    public string TxWork(string message)  
    {  
      // Do some transactable work.  
      Console.WriteLine("TxWork called with: " + message);  
      // Display transaction information.  

      TransactionInformation info = Transaction.Current.TransactionInformation;  
      Console.WriteLine("The distributed tx ID: {0}.", info.DistributedIdentifier);  
      Console.WriteLine("The tx status: {0}.", info.Status);  
      return String.Format("Hello. This was object {0}.",myID.ToString()) ;  
    }  

    public void Dispose()  
    {  
      Console.WriteLine(  
        "Service "  
        + myID.ToString()  
        + " is being recycled."  
      );  
    }  
  }  
}  

Comentarios

TransactionFlowAttribute es un atributo utilizado mediante declaración para asociar una directiva de flujo de transacción concreta a una operación del servicio.The TransactionFlowAttribute is an attribute used declaratively to associate a specific transaction flow policy with a service operation. La propiedad TransactionFlowOption de este atributo especifica si la operación respectiva acepta una transacción que ha fluido del cliente o si la operación exige al cliente que fluya siempre una transacción.The TransactionFlowOption property of this attribute specifies whether the respective operation accepts a transaction flowed from the client, or if the operation requires the client to always flow a transaction. TransactionFlowAttribute también se puede utilizar como comportamiento de la operación para asociar mediante programación una directiva de flujo de transacción a una operación concreta.The TransactionFlowAttribute can also be used as an operation behavior to programmatically associate a transaction flow policy with a specific operation. En este caso, debe agregarse a la Behaviors colección en la descripción de la operación.In this case, it should be added to the Behaviors collection on the operation's description.

Nota

OperationContract para cada método que utiliza TransactionFlowAttribute debe proporcionar una cadena Action completa.The OperationContract for each method that uses the TransactionFlowAttribute must provide a fully-qualified Action string. No se admite un valor de "*".A value of "*" is not supported.

Constructores

TransactionFlowAttribute(TransactionFlowOption) TransactionFlowAttribute(TransactionFlowOption) TransactionFlowAttribute(TransactionFlowOption) TransactionFlowAttribute(TransactionFlowOption)

Inicializa una nueva instancia de la clase TransactionFlowAttribute.Initializes a new instance of the TransactionFlowAttribute class.

Propiedades

Transactions Transactions Transactions Transactions

Obtiene un valor que indica si se admite la transacción entrante.Gets a value that indicates whether the incoming transaction is supported.

TypeId TypeId TypeId TypeId

Cuando se implementa en una clase derivada, obtiene un identificador único para este Attribute.When implemented in a derived class, gets a unique identifier for this Attribute.

(Inherited from Attribute)

Implementaciones de interfaz explícitas

IOperationBehavior.AddBindingParameters(OperationDescription, BindingParameterCollection) IOperationBehavior.AddBindingParameters(OperationDescription, BindingParameterCollection) IOperationBehavior.AddBindingParameters(OperationDescription, BindingParameterCollection) IOperationBehavior.AddBindingParameters(OperationDescription, BindingParameterCollection)

Agrega parámetros adicionales (valores) al contexto de enlace para admitir el comportamiento de esta operación.Adds extra parameters (settings) to the binding context to support this operation's behavior. Este método no puede heredarse.This method cannot be inherited.

IOperationBehavior.ApplyClientBehavior(OperationDescription, ClientOperation) IOperationBehavior.ApplyClientBehavior(OperationDescription, ClientOperation) IOperationBehavior.ApplyClientBehavior(OperationDescription, ClientOperation) IOperationBehavior.ApplyClientBehavior(OperationDescription, ClientOperation)

Asocia la funcionalidad del atributo al objeto ProxyOperation para el método que marca el atributo.Attaches the attribute functionality to the ProxyOperation object for the method that the attribute marks. Este método no puede heredarse.This method cannot be inherited.

IOperationBehavior.ApplyDispatchBehavior(OperationDescription, DispatchOperation) IOperationBehavior.ApplyDispatchBehavior(OperationDescription, DispatchOperation) IOperationBehavior.ApplyDispatchBehavior(OperationDescription, DispatchOperation) IOperationBehavior.ApplyDispatchBehavior(OperationDescription, DispatchOperation)

Asocia la funcionalidad del atributo al objeto DispatchOperation para el método que marca el atributo.Attaches the attribute functionality to the DispatchOperation object for the method that the attribute marks. Este método no puede heredarse.This method cannot be inherited.

IOperationBehavior.Validate(OperationDescription) IOperationBehavior.Validate(OperationDescription) IOperationBehavior.Validate(OperationDescription) IOperationBehavior.Validate(OperationDescription)

Comprueba que la operación puede admitir este comportamiento.Verifies that the operation can support this behavior. Este método no puede heredarse.This method cannot be inherited.

_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

Asigna un conjunto de nombres a un conjunto correspondiente de identificadores de envío.Maps a set of names to a corresponding set of dispatch identifiers.

(Inherited from Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

Obtiene la información de tipos de un objeto, que puede utilizarse para obtener la información de tipos de una interfaz.Retrieves the type information for an object, which can be used to get the type information for an interface.

(Inherited from Attribute)
_Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32)

Recupera el número de interfaces de información de tipo que proporciona un objeto (0 ó 1).Retrieves the number of type information interfaces that an object provides (either 0 or 1).

(Inherited from Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Proporciona acceso a las propiedades y los métodos expuestos por un objeto.Provides access to properties and methods exposed by an object.

(Inherited from Attribute)

Métodos

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Devuelve un valor que indica si esta instancia es igual que un objeto especificado.Returns a value that indicates whether this instance is equal to a specified object.

(Inherited from Attribute)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Devuelve el código hash de esta instancia.Returns the hash code for this instance.

(Inherited from Attribute)
GetType() GetType() GetType() GetType()

Obtiene el Type de la instancia actual.Gets the Type of the current instance.

(Inherited from Object)
IsDefaultAttribute() IsDefaultAttribute() IsDefaultAttribute() IsDefaultAttribute()

Si se reemplaza en una clase derivada, indica si el valor de esta instancia es el valor predeterminado de la clase derivada.When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.

(Inherited from Attribute)
Match(Object) Match(Object) Match(Object) Match(Object)

Cuando se invalida en una clase derivada, devuelve un valor que indica si esta instancia es igual a un objeto especificado.When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.

(Inherited from Attribute)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Crea una copia superficial del objeto Object actual.Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Devuelve una cadena que representa el objeto actual.Returns a string that represents the current object.

(Inherited from Object)

Se aplica a

Consulte también: