ISponsor 接口

定义

命名空间:

System.Runtime.Remoting.Lifetime

程序集:

mscorlib.dll

指示该实施者希望成为生存期租约主办方。

public interface class ISponsor

[System.Runtime.InteropServices.ComVisible(true)]
public interface ISponsor

[<System.Runtime.InteropServices.ComVisible(true)>]
type ISponsor = interface

Public Interface ISponsor

派生

System.AddIn.Pipeline.ContractBase

System.Runtime.Remoting.Lifetime.ClientSponsor

属性

ComVisibleAttribute

示例

public ref class MyClientSponsor: public MarshalByRefObject, public ISponsor
{
private:
   DateTime lastRenewal;

public:
   MyClientSponsor()
   {
      lastRenewal = DateTime::Now;
   }

   [SecurityPermissionAttribute(SecurityAction::LinkDemand,Flags=SecurityPermissionFlag::Infrastructure)]
   virtual TimeSpan Renewal( ILease^ /* lease */ )
   {
      Console::WriteLine( "Request to renew the lease time." );
      Console::WriteLine( "Time since last renewal: {0}",
         DateTime::Now - lastRenewal );

      lastRenewal = DateTime::Now;
      return TimeSpan::FromSeconds( 20 );
   }
};

public class MyClientSponsor : MarshalByRefObject, ISponsor
{
   private DateTime lastRenewal;
   public MyClientSponsor()
   {
      lastRenewal = DateTime.Now;
   }

   public TimeSpan Renewal(ILease lease)
   {
      Console.WriteLine("Request to renew the lease time.");
      Console.WriteLine("Time since last renewal: " +
         (DateTime.Now - lastRenewal).ToString());

      lastRenewal = DateTime.Now;
      return TimeSpan.FromSeconds(20);
   }
}

Public Class MyClientSponsor
   Inherits MarshalByRefObject
   Implements ISponsor 
   Private lastRenewal As DateTime
   
   Public Sub New()
      lastRenewal = DateTime.Now
   End Sub
   
   <SecurityPermission(SecurityAction.LinkDemand, Flags := SecurityPermissionFlag.Infrastructure)> _
   Public Function Renewal(lease As ILease) As TimeSpan Implements ISponsor.Renewal
      Console.WriteLine("Request to renew the lease time.")
      Console.WriteLine("Time since last renewal: " + _ 
                      DateTime.op_Subtraction(DateTime.Now, lastRenewal).ToString())
      
      lastRenewal = DateTime.Now
      Return TimeSpan.FromSeconds(20)
   End Function 'Renewal
End Class

注解

如果对象需要为特定对象请求租约续订，则它必须实现 ISponsor 接口。 实现 ISponsor 接口的对象可以通过向租约管理器注册自身来成为发起人。 ISponsor生存期服务使用该接口来回拨给发起人。

方法

Renewal(ILease)

请求发起客户端续订指定对象的租约。