ReturnMessage クラス

.NET Framework クラス ライブラリ リファレンス

ReturnMessage クラス

リモート オブジェクトに対するメソッド呼び出しへの応答として返されるメッセージを保持します。

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 Class ReturnMessage
    Implements IMethodReturnMessage, IMethodMessage, IMessage

Visual Basic (使用法)

Dim instance As ReturnMessage

C#

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

C++

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

J#

/** @attribute ComVisibleAttribute(true) */ 
public class ReturnMessage implements IMethodReturnMessage,
 IMethodMessage, 
    IMessage

JScript

ComVisibleAttribute(true) 
public class ReturnMessage implements IMethodReturnMessage,
 IMethodMessage, 
    IMessage

解説

メモ
このクラスは、リンク確認要求と継承確認要求をクラス レベルで行います。直前の呼び出し元または派生クラスにインフラストラクチャ アクセス許可がない場合、SecurityException がスローされます。セキュリティ要求の詳細については、「リンク確認要求」および「継承確認要求」を参照してください。

使用例

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

.NET Framework のセキュリティ

• SecurityPermission  (インフラストラクチャ コードを操作するために必要なアクセス許可)。要求値 : SecurityAction.LinkDemand; アクセス許可値 : SecurityPermissionFlag.Infrastructure
• SecurityPermission  (インフラストラクチャ コードを操作するために必要なアクセス許可)。要求値 : SecurityAction.InheritanceDemand; アクセス許可値 : SecurityPermissionFlag.Infrastructure

継承階層

System.Object
  System.Runtime.Remoting.Messaging.ReturnMessage

スレッド セーフ

この型の public static (Visual Basic では Shared) メンバはすべて、スレッド セーフです。インスタンス メンバの場合は、スレッド セーフであるとは限りません。

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
ReturnMessage メンバ
System.Runtime.Remoting.Messaging 名前空間