TransactionFlowAttribute TransactionFlowAttribute TransactionFlowAttribute TransactionFlowAttribute Class

定义

指定服务操作是否接受来自客户端的传入事务。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
继承
TransactionFlowAttributeTransactionFlowAttributeTransactionFlowAttributeTransactionFlowAttribute
属性
实现

示例

下面的代码示例演示此枚举如何与 TransactionFlowOption 类在操作级别一起使用。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."  
      );  
    }  
  }  
}  

注解

TransactionFlowAttribute 是以声明方式使用的属性,可将特定事务流策略与服务操作关联。The TransactionFlowAttribute is an attribute used declaratively to associate a specific transaction flow policy with a service operation. 此特性的 TransactionFlowOption 属性指定各个操作是否接受从客户端流入的事务,或指定操作是否要求客户端始终流动事务。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 还能够作为操作行为使用,可以编程的方式将事务流策略与特定操作关联。The TransactionFlowAttribute can also be used as an operation behavior to programmatically associate a transaction flow policy with a specific operation. 在这种情况下,它应被添加到Behaviors上操作的说明的集合。In this case, it should be added to the Behaviors collection on the operation's description.

备注

使用 OperationContract 的每个方法的 TransactionFlowAttribute 都必须提供完全限定的 Action 字符串。The OperationContract for each method that uses the TransactionFlowAttribute must provide a fully-qualified Action string. 不支持“*”值。A value of "*" is not supported.

构造函数

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

初始化 TransactionFlowAttribute 类的新实例。Initializes a new instance of the TransactionFlowAttribute class.

属性

Transactions Transactions Transactions Transactions

获取一个值,该值指示是否支持传入事务。Gets a value that indicates whether the incoming transaction is supported.

TypeId TypeId TypeId TypeId

在派生类中实现时,获取此 Attribute 的唯一标识符。When implemented in a derived class, gets a unique identifier for this Attribute.

(Inherited from Attribute)

显式界面实现

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

向绑定上下文中添加额外的参数(设置),以支持此操作的行为。Adds extra parameters (settings) to the binding context to support this operation's behavior. 不能继承此方法。This method cannot be inherited.

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

将属性功能附加到此属性功能标记的方法的 ProxyOperation 对象。Attaches the attribute functionality to the ProxyOperation object for the method that the attribute marks. 不能继承此方法。This method cannot be inherited.

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

将属性功能附加到此属性功能标记的方法的 DispatchOperation 对象。Attaches the attribute functionality to the DispatchOperation object for the method that the attribute marks. 不能继承此方法。This method cannot be inherited.

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

验证操作是否能够支持此行为。Verifies that the operation can support this behavior. 不能继承此方法。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)

将一组名称映射为对应的一组调度标识符。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)

检索对象的类型信息,然后可以使用该信息获取接口的类型信息。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)

检索对象提供的类型信息接口的数量(0 或 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)

提供对某一对象公开的属性和方法的访问。Provides access to properties and methods exposed by an object.

(Inherited from Attribute)

方法

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

返回一个值,该值指示此实例是否与指定的对象相等。Returns a value that indicates whether this instance is equal to a specified object.

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

返回此实例的哈希代码。Returns the hash code for this instance.

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

获取当前实例的 TypeGets the Type of the current instance.

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

在派生类中重写时,指示此实例的值是否是派生类的默认值。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)

当在派生类中重写时,返回一个指示此实例是否等于指定对象的值。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()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

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

返回表示当前对象的字符串。Returns a string that represents the current object.

(Inherited from Object)

适用于

另请参阅