RealProxy.Invoke(IMessage) Método

public:
 abstract System::Runtime::Remoting::Messaging::IMessage ^ Invoke(System::Runtime::Remoting::Messaging::IMessage ^ msg);

public abstract System.Runtime.Remoting.Messaging.IMessage Invoke (System.Runtime.Remoting.Messaging.IMessage msg);

abstract member Invoke : System.Runtime.Remoting.Messaging.IMessage -> System.Runtime.Remoting.Messaging.IMessage

Public MustOverride Function Invoke (msg As IMessage) As IMessage

Parâmetros

Retornos

A mensagem retornada pelo método invocado, que contém o valor retornado e quaisquer parâmetros out ou ref.

Exemplos

virtual IMessage^ Invoke( IMessage^ myMessage ) override
{
   Console::WriteLine( "MyProxy 'Invoke method' Called..." );
   if ( dynamic_cast<IMethodCallMessage^>(myMessage) )
   {
      Console::WriteLine( "IMethodCallMessage*" );
   }

   if ( dynamic_cast<IMethodReturnMessage^>(myMessage) )
   {
      Console::WriteLine( "IMethodReturnMessage*" );
   }

   if ( dynamic_cast<IConstructionCallMessage^>(myMessage) )
   {
      // Initialize a new instance of remote object
      IConstructionReturnMessage^ myIConstructionReturnMessage = this->InitializeServerObject( static_cast<IConstructionCallMessage^>(myMessage) );
      ConstructionResponse^ constructionResponse = gcnew ConstructionResponse( nullptr,static_cast<IMethodCallMessage^>(myMessage) );
      return constructionResponse;
   }

   IDictionary^ myIDictionary = myMessage->Properties;
   IMessage^ returnMessage;
   myIDictionary[ "__Uri" ] = myUri;

   // Synchronously dispatch messages to server.
   returnMessage = ChannelServices::SyncDispatchMessage( myMessage );

   // Pushing return value and OUT parameters back onto stack.
   IMethodReturnMessage^ myMethodReturnMessage = dynamic_cast<IMethodReturnMessage^>(returnMessage);
   return returnMessage;
}

public override IMessage Invoke(IMessage myMessage)
{
   Console.WriteLine("MyProxy 'Invoke method' Called...");
   if (myMessage is IMethodCallMessage)
   {
      Console.WriteLine("IMethodCallMessage");
   }
   if (myMessage is IMethodReturnMessage)
   {
      Console.WriteLine("IMethodReturnMessage");
   }
   if (myMessage is IConstructionCallMessage)
   {
      // Initialize a new instance of remote object
      IConstructionReturnMessage myIConstructionReturnMessage =
         this.InitializeServerObject((IConstructionCallMessage)myMessage);
      ConstructionResponse constructionResponse = new
         ConstructionResponse(null,(IMethodCallMessage) myMessage);
      return constructionResponse;
   }
   IDictionary myIDictionary = myMessage.Properties;
   IMessage returnMessage;
   myIDictionary["__Uri"] = myUri;

   // Synchronously dispatch messages to server.
   returnMessage = ChannelServices.SyncDispatchMessage(myMessage);
   // Pushing return value and OUT parameters back onto stack.
   IMethodReturnMessage myMethodReturnMessage = (IMethodReturnMessage)returnMessage;
   return returnMessage;
}

Public Overrides Function Invoke(myMessage As IMessage) As IMessage
   Console.WriteLine("MyProxy 'Invoke method' Called...")
   If TypeOf myMessage Is IMethodCallMessage Then
      Console.WriteLine("IMethodCallMessage")
   End If
   If TypeOf myMessage Is IMethodReturnMessage Then
      Console.WriteLine("IMethodReturnMessage")
   End If
   If TypeOf myMessage Is IConstructionCallMessage Then
      ' Initialize a new instance of remote object
      Dim myIConstructionReturnMessage As IConstructionReturnMessage = _
            Me.InitializeServerObject(CType(myMessage, IConstructionCallMessage))
      Dim constructionResponse As _
            New ConstructionResponse(Nothing, CType(myMessage, IMethodCallMessage))
      Return constructionResponse
   End If
   Dim myIDictionary As IDictionary = myMessage.Properties
   Dim returnMessage As IMessage
   myIDictionary("__Uri") = myUri
   ' Synchronously dispatch messages to server.
   returnMessage = ChannelServices.SyncDispatchMessage(myMessage)
   ' Pushing return value and OUT parameters back onto stack.
   Dim myMethodReturnMessage As IMethodReturnMessage = _
         CType(returnMessage, IMethodReturnMessage)
   Return returnMessage
End Function 'Invoke

Comentários

Quando o proxy transparente que é apoiado pelo RealProxy é chamado, ele delega as chamadas para o Invoke método . O Invoke método transforma a mensagem no parâmetro em msg um IMethodCallMessagee a envia para o objeto remoto representado pela instância atual do RealProxy.

O IMessage parâmetro fornece um dicionário por meio da IMessage.Properties propriedade . O dicionário contém pares nome/valor de informações sobre a chamada de método, como o nome do método chamado e seus parâmetros.

Aplica-se a