OperationBehaviorAttribute 类

定义

指定服务方法的本地执行行为。

public ref class OperationBehaviorAttribute sealed : Attribute, System::ServiceModel::Description::IOperationBehavior
[System.AttributeUsage(System.AttributeTargets.Method)]
public sealed class OperationBehaviorAttribute : Attribute, System.ServiceModel.Description.IOperationBehavior
[<System.AttributeUsage(System.AttributeTargets.Method)>]
type OperationBehaviorAttribute = class
    inherit Attribute
    interface IOperationBehavior
Public NotInheritable Class OperationBehaviorAttribute
Inherits Attribute
Implements IOperationBehavior
继承
OperationBehaviorAttribute
属性
实现

示例

下面的代码示例演示在强制的分布式事务中执行的操作。 TransactionScopeRequired 属性指示方法在调用方的事务下执行,TransactionAutoComplete 属性指示在没有发生未经处理的异常时,将自动提交事务。 如果确实出现未经处理的异常,则中止此事务。

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]
    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
    )]
    [TransactionFlow(TransactionFlowOption.Mandatory)]
    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."
      );
    }
  }
}
Imports System.ServiceModel
Imports System.Transactions

Namespace Microsoft.WCF.Documentation
  <ServiceContract(Namespace:="http://microsoft.wcf.documentation", SessionMode:=SessionMode.Required)> _
  Public Interface IBehaviorService
    <OperationContract> _
    Function TxWork(ByVal message As String) As String
  End Interface

    ' 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
        Implements IBehaviorService, IDisposable
        Private myID As Guid

        Public Sub New()
            myID = Guid.NewGuid()
            Console.WriteLine("Object " & myID.ToString() & " created.")
        End Sub

        '    
        '     * 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), _
        TransactionFlow(TransactionFlowOption.Mandatory)> _
        Public Function TxWork(ByVal message As String) As String Implements IBehaviorService.TxWork
            ' Do some transactable work.
            Console.WriteLine("TxWork called with: " & message)
            ' Display transaction information.

            Dim info As TransactionInformation = 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())
        End Function

        Public Sub Dispose() Implements IDisposable.Dispose
            Console.WriteLine("Service " & myID.ToString() & " is being recycled.")
        End Sub
    End Class
End Namespace

注解

使用 OperationBehaviorAttribute 属性可以指示操作在执行时具有何种操作特定的执行行为。 若要指定服务级别的执行行为,请使用 ServiceBehaviorAttribute 属性。

备注

也可以使用 OperationBehaviorAttribute 在双工客户端应用程序中配置回调协定操作。 对回调操作使用它时,ReleaseInstanceMode 属性必须为 None,否则会在运行时引发 InvalidOperationException 异常。

OperationBehaviorAttribute属性是一种Windows Communication Foundation (WCF) 编程模型功能,可启用开发人员否则必须实现自己的常见功能。

构造函数

OperationBehaviorAttribute()

初始化 OperationBehaviorAttribute 类的新实例。

属性

AutoDisposeParameters

获取或设置一个值,它指示是否自动释放参数。

Impersonation

获取或设置一个值,该值指示操作支持的调用方模拟级别。

ReleaseInstanceMode

获取或设置一个值,该值指示在调用操作过程中回收服务对象的时间。

TransactionAutoComplete

获取或设置一个值,该值指示如果没有发生未经处理的异常,是否自动完成当前的事务范围。

TransactionScopeRequired

获取或设置一个值,该值指示方法在执行时是否需要事务范围。

TypeId

在派生类中实现时,获取此 Attribute 的唯一标识符。

(继承自 Attribute)

方法

Equals(Object)

返回一个值,该值指示此实例是否与指定的对象相等。

(继承自 Attribute)
GetHashCode()

返回此实例的哈希代码。

(继承自 Attribute)
GetType()

获取当前实例的 Type

(继承自 Object)
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。

(继承自 Attribute)
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。

(继承自 Attribute)
MemberwiseClone()

创建当前 Object 的浅表副本。

(继承自 Object)
ToString()

返回表示当前对象的字符串。

(继承自 Object)

显式接口实现

_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。

(继承自 Attribute)
_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。

(继承自 Attribute)
_Attribute.GetTypeInfoCount(UInt32)

检索对象提供的类型信息接口的数量(0 或 1)。

(继承自 Attribute)
_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。

(继承自 Attribute)
IOperationBehavior.AddBindingParameters(OperationDescription, BindingParameterCollection)

实现 AddBindingParameters(OperationDescription, BindingParameterCollection) 方法。

IOperationBehavior.ApplyClientBehavior(OperationDescription, ClientOperation)

实现客户端操作行为。

IOperationBehavior.ApplyDispatchBehavior(OperationDescription, DispatchOperation)

实现服务操作行为。

IOperationBehavior.Validate(OperationDescription)

实现验证行为。

适用于