ClientSponsor 類別

定義

命名空間:

System.Runtime.Remoting.Lifetime

組件:

mscorlib.dll

提供存留期贊助者類別的預設實作。

public ref class ClientSponsor : MarshalByRefObject, System::Runtime::Remoting::Lifetime::ISponsor

[System.Runtime.InteropServices.ComVisible(true)]
[System.Security.SecurityCritical]
public class ClientSponsor : MarshalByRefObject, System.Runtime.Remoting.Lifetime.ISponsor

[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Security.SecurityCritical>]
type ClientSponsor = class
    inherit MarshalByRefObject
    interface ISponsor

Public Class ClientSponsor
Inherits MarshalByRefObject
Implements ISponsor

繼承

Object

MarshalByRefObject

ClientSponsor

屬性

ComVisibleAttribute SecurityCriticalAttribute

實作

ISponsor

範例

下列範例說明 ClientSponsor 類別，以延長類別啟動遠端物件的生命週期。

#using <system.dll>
#using <system.runtime.remoting.dll>
#using <ClientSponsor_Share.dll>

using namespace System;
using namespace System::Runtime::Remoting;
using namespace System::Runtime::Remoting::Channels;
using namespace System::Runtime::Remoting::Channels::Tcp;
using namespace System::Runtime::Remoting::Lifetime;

int main()
{
   // Register a channel.
   TcpChannel^ myChannel = gcnew TcpChannel;
   ChannelServices::RegisterChannel( myChannel );
   RemotingConfiguration::RegisterActivatedClientType(
      RemotingSamples::HelloService::typeid, "tcp://localhost:8085/" );
   
   // Get the remote Object*.
   RemotingSamples::HelloService ^ myService = gcnew RemotingSamples::HelloService;
   
   // Get a sponsor for renewal of time.
   ClientSponsor^ mySponsor = gcnew ClientSponsor;
   
   // Register the service with sponsor.
   mySponsor->Register( myService );
   
   // Set renewaltime.
   mySponsor->RenewalTime = TimeSpan::FromMinutes( 2 );
   
   // Renew the lease.
   ILease^ myLease = dynamic_cast<ILease^>(mySponsor->InitializeLifetimeService());
   TimeSpan myTime = mySponsor->Renewal( myLease );
   Console::WriteLine( "Renewed time in minutes is {0}", myTime.Minutes );
   
   // Call the remote method.
   Console::WriteLine( myService->HelloMethod( "World" ) );
   
   // Unregister the channel.
   mySponsor->Unregister( myService );
   mySponsor->Close();
}

using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;
using System.Runtime.Remoting.Lifetime;
namespace RemotingSamples
{

   class HelloClient
   {
       static void Main()
      {
         // Register a channel.
         TcpChannel myChannel = new TcpChannel ();
         ChannelServices.RegisterChannel(myChannel);
         RemotingConfiguration.RegisterActivatedClientType(
                                typeof(HelloService),"tcp://localhost:8085/");

         // Get the remote object.
         HelloService myService = new HelloService();

         // Get a sponsor for renewal of time.
         ClientSponsor mySponsor = new ClientSponsor();

         // Register the service with sponsor.
         mySponsor.Register(myService);

         // Set renewaltime.
         mySponsor.RenewalTime = TimeSpan.FromMinutes(2);

         // Renew the lease.
         ILease myLease = (ILease)mySponsor.InitializeLifetimeService();
         TimeSpan myTime = mySponsor.Renewal(myLease);
         Console.WriteLine("Renewed time in minutes is " + myTime.Minutes.ToString());

         // Call the remote method.
         Console.WriteLine(myService.HelloMethod("World"));

         // Unregister the channel.
         mySponsor.Unregister(myService);
         mySponsor.Close();
      }
   }
}

Imports System.Runtime.Remoting
Imports System.Runtime.Remoting.Channels
Imports System.Runtime.Remoting.Channels.Tcp
Imports System.Runtime.Remoting.Lifetime

Namespace RemotingSamples

   Class HelloClient

      Shared Sub Main()
         ' Register a channel.
         Dim myChannel As New TcpChannel()
         ChannelServices.RegisterChannel(myChannel)
         RemotingConfiguration.RegisterActivatedClientType( _
                     GetType(HelloService), "tcp://localhost:8085")

         ' Get the remote object.
         Dim myService As New HelloService()

         ' Get a sponsor for renewal of time.
         Dim mySponsor As New ClientSponsor()

         ' Register the service with sponsor.
         mySponsor.Register(myService)

         ' Set renewaltime.
         mySponsor.RenewalTime = TimeSpan.FromMinutes(2)

         ' Renew the lease.
         Dim myLease As ILease = CType(mySponsor.InitializeLifetimeService(), ILease)
         Dim myTime As TimeSpan = mySponsor.Renewal(myLease)
         Console.WriteLine("Renewed time in minutes is " & myTime.Minutes)

         ' Call the remote method.
         Console.WriteLine(myService.HelloMethod("World"))

         ' Unregister the channel.
         mySponsor.Unregister(myService)
         mySponsor.Close()
      End Sub
   End Class


End Namespace 'RemotingSamples

備註

目前的存留期贊助者實作可用來贊助物件，方法是指定必要的更新 TimeSpan 。

注意

這個類別會在類別層級建立連結需求和繼承需求。 SecurityException當立即呼叫端或衍生類別沒有基礎結構許可權時，就會擲回 。 如需安全性需求的詳細資訊，請參閱 連結需求 和 繼承需求。

建構函式

ClientSponsor()	使用預設值，初始化 ClientSponsor 類別的新執行個體。
ClientSponsor(TimeSpan)	使用受贊助物件的更新時間，初始化 ClientSponsor 類別的新執行個體。

屬性

RenewalTime

取得或設定在要求更新時要據以增加受贊助物件存留期的 TimeSpan。

方法

Close()	清空註冊於 ClientSponsor 的清單物件。
CreateObjRef(Type)	建立包含所有相關資訊的物件，這些資訊是產生用來與遠端物件通訊的所需 Proxy。 (繼承來源 MarshalByRefObject)
Equals(Object)	判斷指定的物件是否等於目前的物件。 (繼承來源 Object)
Finalize()	在記憶體回收行程回收目前 ClientSponsor 的資源之前釋放它們。
GetHashCode()	做為預設雜湊函式。 (繼承來源 Object)
GetLifetimeService()	擷取控制這個執行個體存留期 (Lifetime) 原則的目前存留期服務物件。 (繼承來源 MarshalByRefObject)
GetType()	取得目前執行個體的 Type。 (繼承來源 Object)
InitializeLifetimeService()	提供目前物件的使用期 (Lease)，初始化 ClientSponsor 的新執行個體。
MemberwiseClone()	建立目前 Object 的淺層複製。 (繼承來源 Object)
MemberwiseClone(Boolean)	建立目前 MarshalByRefObject 物件的淺層複本。 (繼承來源 MarshalByRefObject)
Register(MarshalByRefObject)	註冊為贊助身分的指定 MarshalByRefObject。
Renewal(ILease)	要求贊助的用戶端更新指定物件的使用期。
ToString()	傳回代表目前物件的字串。 (繼承來源 Object)
Unregister(MarshalByRefObject)	將指定 MarshalByRefObject 從目前 ClientSponsor 所贊助物件的清單中移除註冊。