IMethodReturnMessage インターフェイス

.NET Framework クラス ライブラリ リファレンス

IMethodReturnMessage インターフェイス

メソッド呼び出しの応答メッセージのインターフェイスを定義します。

名前空間: System.Runtime.Remoting.Messaging
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

<ComVisibleAttribute(True)> _
Public Interface IMethodReturnMessage
    Inherits IMethodMessage, IMessage

Visual Basic (使用法)

Dim instance As IMethodReturnMessage

C#

[ComVisibleAttribute(true)] 
public interface IMethodReturnMessage : IMethodMessage, IMessage

C++

[ComVisibleAttribute(true)] 
public interface class IMethodReturnMessage
 : IMethodMessage, IMessage

J#

/** @attribute ComVisibleAttribute(true) */ 
public interface IMethodReturnMessage extends IMethodMessage,
 IMessage

JScript

ComVisibleAttribute(true) 
public interface IMethodReturnMessage extends
 IMethodMessage, IMessage

解説

メソッド呼び出しの応答メッセージは、メッセージ シンク側における、オブジェクトに対するメソッド呼び出しへの応答を表します。IMethodReturnMessage は、リモート オブジェクトに対して呼び出されたメソッドの結果として生成され、そのメソッド呼び出しの結果を呼び出し元に返すために使用されます。

使用例

RealProxy.Invoke をオーバーライドして、返されたメッセージの情報をコンソールに書き込むカスタム プロキシについては、次のコード例を参照してください。

Visual Basic

<PermissionSet(SecurityAction.Demand, Name:="FullTrust")>
 _
Public Class MyProxy
   Inherits RealProxy
   Private stringUri As String
   Private myMarshalByRefObject As MarshalByRefObject
   
   Public Sub New(myType
 As Type)
      MyBase.New(myType)
      myMarshalByRefObject = CType(Activator.CreateInstance(myType), MarshalByRefObject)
      Dim myObject As ObjRef = RemotingServices.Marshal(myMarshalByRefObject)
      stringUri = myObject.URI
   End Sub 'New
   
   Public Overrides Function
 Invoke(myMessage As IMessage) As IMessage
      Dim myCallMessage As IMethodCallMessage
 = CType(myMessage, IMethodCallMessage)

      Dim myIMethodReturnMessage As IMethodReturnMessage
 = RemotingServices. _
         ExecuteMessage(myMarshalByRefObject, myCallMessage)

      Console.WriteLine("Method name : " + myIMethodReturnMessage.MethodName)
      Console.WriteLine("The return value is : " +
 myIMethodReturnMessage.ReturnValue)
      
      ' Get number of 'ref' and 'out' parameters.
      Dim myArgOutCount As Integer
 = myIMethodReturnMessage.OutArgCount
      Console.WriteLine("The number of 'ref',
 'out' parameters are : " + _
         myIMethodReturnMessage.OutArgCount.ToString())
      ' Gets name and values of 'ref' and 'out' parameters.
      Dim i As Integer
      For i = 0 To myArgOutCount - 1
         Console.WriteLine("Name of argument {0} is
 '{1}'.", i, _
            myIMethodReturnMessage.GetOutArgName(i))
         Console.WriteLine("Value of argument {0} is
 '{1}'.", i, _
            myIMethodReturnMessage.GetOutArg(i))
      Next i
      Console.WriteLine()
      Dim myObjectArray As Object()
 = myIMethodReturnMessage.OutArgs
      For i = 0 To myObjectArray.Length - 1
         Console.WriteLine("Value of argument {0} is
 '{1}' in OutArgs", i, myObjectArray(i))
      Next i
      Return myIMethodReturnMessage
   End Function 'Invoke
End Class 'MyProxy

C#

[PermissionSet(SecurityAction.Demand, Name="FullTrust")]
public class MyProxy : RealProxy
{
   String stringUri;
   MarshalByRefObject myMarshalByRefObject;

   public MyProxy(Type myType): base(myType)
   {
      myMarshalByRefObject = (MarshalByRefObject)Activator.CreateInstance(myType);
      ObjRef myObject = RemotingServices.Marshal(myMarshalByRefObject);
      stringUri = myObject.URI;
   }

   public override IMessage Invoke(IMessage myMessage)
   {
      IMethodCallMessage myCallMessage = (IMethodCallMessage)myMessage;

      IMethodReturnMessage myIMethodReturnMessage =
         RemotingServices.ExecuteMessage(myMarshalByRefObject, myCallMessage);

      Console.WriteLine("Method name : " + myIMethodReturnMessage.MethodName);
      Console.WriteLine("The return value is : " + myIMethodReturnMessage.ReturnValue);

      // Get number of 'ref' and 'out' parameters.
      int myArgOutCount = myIMethodReturnMessage.OutArgCount;
      Console.WriteLine("The number of 'ref', 'out' parameters are : "
 +
         myIMethodReturnMessage.OutArgCount);
      // Gets name and values of 'ref' and 'out' parameters.
      for(int i = 0; i < myArgOutCount;
 i++)
      {
         Console.WriteLine("Name of argument {0} is '{1}'.",
            i, myIMethodReturnMessage.GetOutArgName(i));
         Console.WriteLine("Value of argument {0} is '{1}'.",
            i, myIMethodReturnMessage.GetOutArg(i));
      }
      Console.WriteLine();
      object[] myObjectArray = myIMethodReturnMessage.OutArgs; 
      for(int i = 0; i < myObjectArray.Length;
 i++)
         Console.WriteLine("Value of argument {0} is '{1}' in
 OutArgs",
            i, myObjectArray[i]);
      return myIMethodReturnMessage;
   }
}

C++

[System::Security::Permissions::SecurityPermissionAttribute
(System::Security::Permissions::SecurityAction::LinkDemand, 
Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
[System::Security::Permissions::SecurityPermissionAttribute
(System::Security::Permissions::SecurityAction::InheritanceDemand, 
Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
public ref class MyProxy: public
 RealProxy
{
private:
   String^ stringUri;
   MarshalByRefObject^ myMarshalByRefObject;

public:
   MyProxy( Type^ myType ) : RealProxy( myType )
   {
      myMarshalByRefObject = dynamic_cast<MarshalByRefObject^>(Activator::CreateInstance(
 myType ));
      ObjRef^ myObject = RemotingServices::Marshal( myMarshalByRefObject );
      stringUri = myObject->URI;
   }

   virtual IMessage^ Invoke( IMessage^ myMessage ) override
   {
      IMethodCallMessage^ myCallMessage = (IMethodCallMessage^)( myMessage );

      IMethodReturnMessage^ myIMethodReturnMessage =
         RemotingServices::ExecuteMessage( myMarshalByRefObject, myCallMessage );

      Console::WriteLine( "Method name : {0}", myIMethodReturnMessage->MethodName
 );
      Console::WriteLine( "The return value is : {0}",
 myIMethodReturnMessage->ReturnValue );

      // Get number of 'ref' and 'out' parameters.
      int myArgOutCount = myIMethodReturnMessage->OutArgCount;
      Console::WriteLine( "The number of 'ref', 'out' parameters are : {0}"
,
         myIMethodReturnMessage->OutArgCount );
      // Gets name and values of 'ref' and 'out' parameters.
      for ( int i = 0; i < myArgOutCount;
 i++ )
      {
         Console::WriteLine( "Name of argument {0} is '{1}'.",
            i, myIMethodReturnMessage->GetOutArgName( i ) );
         Console::WriteLine( "Value of argument {0} is '{1}'.",
            i, myIMethodReturnMessage->GetOutArg( i ) );
      }
      Console::WriteLine();
      array<Object^>^myObjectArray = myIMethodReturnMessage->OutArgs;
      for ( int i = 0; i < myObjectArray->Length;
 i++ )
         Console::WriteLine( "Value of argument {0} is '{1}' in
 OutArgs",
            i, myObjectArray[ i ] );
      return myIMethodReturnMessage;
   }
};

J#

/** @attribute SecurityPermission(SecurityAction.Demand, Flags = SecurityPermissionFlag.Infrastructure)
*/
public class MyProxy extends RealProxy
{
    private String stringUri;
    private MarshalByRefObject myMarshalByRefObject;

    public MyProxy(Type myType)
    {
        super(myType);
        myMarshalByRefObject 
            = (MarshalByRefObject)Activator.CreateInstance(myType);
        ObjRef myObject = RemotingServices.Marshal(myMarshalByRefObject);
        stringUri = myObject.get_URI();
    } //MyProxy

    public IMessage Invoke(IMessage myMessage)
    {
        IMethodCallMessage myCallMessage = (IMethodCallMessage)myMessage;
        IMethodReturnMessage myIMethodReturnMessage 
            = RemotingServices.ExecuteMessage(myMarshalByRefObject,
                myCallMessage);
        Console.WriteLine("Method name : " 
            + myIMethodReturnMessage.get_MethodName());
        Console.WriteLine("The return value is : " 
            + myIMethodReturnMessage.get_ReturnValue());

        // Get number of 'ref' and 'out' parameters.
        int myArgOutCount = myIMethodReturnMessage.get_OutArgCount();

        Console.WriteLine("The number of 'ref', 'out' parameters are : "
 
            + myIMethodReturnMessage.get_OutArgCount());

        // Gets name and values of 'ref' and 'out' parameters.
        for (int i = 0; i < myArgOutCount;
 i++) {
            Console.WriteLine("Name of argument {0} is '{1}'.",
                System.Convert.ToString(i),
                myIMethodReturnMessage.GetOutArgName(i));
            Console.WriteLine("Value of argument {0} is '{1}'.",
                System.Convert.ToString(i),
                myIMethodReturnMessage.GetOutArg(i));
        }
        Console.WriteLine();
        Object myObjectArray[] = myIMethodReturnMessage.get_OutArgs();

        for (int i = 0; i < myObjectArray.length;
 i++) {
            Console.WriteLine("Value of argument {0} is '{1}' in
 OutArgs",
                System.Convert.ToString(i), myObjectArray.get_Item(i));
        }

        return myIMethodReturnMessage;
    } //Invoke
} //MyProxy

プラットフォーム

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0

参照

関連項目
IMethodReturnMessage メンバ
System.Runtime.Remoting.Messaging 名前空間