OperationBehaviorAttribute OperationBehaviorAttribute OperationBehaviorAttribute OperationBehaviorAttribute Class

定义

指定服务方法的本地执行行为。Specifies the local execution behavior of a service method.

public ref class OperationBehaviorAttribute sealed : Attribute, System::ServiceModel::Description::IOperationBehavior
[System.AttributeUsage(System.AttributeTargets.Method)]
public sealed class OperationBehaviorAttribute : Attribute, System.ServiceModel.Description.IOperationBehavior
type OperationBehaviorAttribute = class
    inherit Attribute
    interface IOperationBehavior
Public NotInheritable Class OperationBehaviorAttribute
Inherits Attribute
Implements IOperationBehavior
继承
OperationBehaviorAttributeOperationBehaviorAttributeOperationBehaviorAttributeOperationBehaviorAttribute
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。The following code example shows an operation that executes within a mandatory distributed transaction. 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。The TransactionScopeRequired property indicates that the method executes under the caller's transaction and the TransactionAutoComplete property indicates that if no unhandled exceptions occur, the transaction commits automatically. 如果确实出现未经处理的异常,则中止此事务。If an unhandled exception does occur, the transaction is aborted.

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。Use the OperationBehaviorAttribute attribute to indicate what operation-specific execution behavior the operation has when executed. 若要指定服务级别的执行行为,请使用 ServiceBehaviorAttribute 属性。(To specify execution behavior at the service level, use the ServiceBehaviorAttribute attribute.)

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。You can also use OperationBehaviorAttribute to configure a callback contract operation in a duplex client application. 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。When used on a callback operation, the ReleaseInstanceMode property must be None or an InvalidOperationException exception is thrown at runtime.

OperationBehaviorAttribute特性是一个 Windows Communication Foundation (WCF) 编程模型功能, 它能够实现开发人员必须自行实现的通用功能。The OperationBehaviorAttribute attribute is a Windows Communication Foundation (WCF) programming model feature that enables common features that developers otherwise must implement themselves.

  • AutoDisposeParameters 属性控制当服务操作完成时是否释放传递给操作的参数对象。The AutoDisposeParameters property controls whether parameter objects passed to an operation are disposed when the operation completes.

  • TransactionAutoComplete 属性指定如果没有发生未经处理的异常,是否自动提交在其中执行方法的事务。The TransactionAutoComplete property specifies whether the transaction in which the method executes is automatically committed if no unhandled exceptions occur.

  • TransactionScopeRequired 属性指定是否必须在事务内执行方法。The TransactionScopeRequired property specifies whether a method must execute within a transaction.

  • Impersonation 属性指定服务操作是可以、必须还是无法模拟调用方的标识。The Impersonation property specifies whether the service operation can, must, or cannot impersonate the caller's identity.

  • ReleaseInstanceMode 属性指定在调用方法过程中回收服务对象的时间。The ReleaseInstanceMode property specifies when service objects are recycled during the method invocation process.

构造函数

OperationBehaviorAttribute() OperationBehaviorAttribute() OperationBehaviorAttribute() OperationBehaviorAttribute()

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

属性

AutoDisposeParameters AutoDisposeParameters AutoDisposeParameters AutoDisposeParameters

获取或设置一个值,它指示是否自动释放参数。Gets or sets a value that indicates whether parameters are to be automatically disposed.

Impersonation Impersonation Impersonation 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。Gets or sets a value that indicates the level of caller impersonation that the operation supports.

ReleaseInstanceMode ReleaseInstanceMode ReleaseInstanceMode 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。Gets or sets a value that indicates when in the course of an operation invocation to recycle the service object.

TransactionAutoComplete TransactionAutoComplete TransactionAutoComplete 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。Gets or sets a value that indicates whether to automatically complete the current transaction scope if no unhandled exceptions occur.

TransactionScopeRequired TransactionScopeRequired TransactionScopeRequired 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。Gets or sets a value that indicates whether the method requires a transaction scope for its execution.

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)

实现 AddBindingParameters(OperationDescription, BindingParameterCollection) 方法。Implements the AddBindingParameters(OperationDescription, BindingParameterCollection) method.

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

实现客户端操作行为。Implements the client operation behavior.

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

实现服务操作行为。Implements the service operation behavior.

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

实现验证行为。Implements the validation behavior.

_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