MarshalByRefObject.InitializeLifetimeService MarshalByRefObject.InitializeLifetimeService MarshalByRefObject.InitializeLifetimeService MarshalByRefObject.InitializeLifetimeService Method

Définition

Obtient un objet de service de durée de vie pour contrôler la stratégie de durée de vie de cette instance.Obtains a lifetime service object to control the lifetime policy for this instance.

public:
 virtual System::Object ^ InitializeLifetimeService();
[System.Security.SecurityCritical]
public virtual object InitializeLifetimeService ();
abstract member InitializeLifetimeService : unit -> obj
override this.InitializeLifetimeService : unit -> obj
Public Overridable Function InitializeLifetimeService () As Object

Retours

Objet de type ILease utilisé pour contrôler la stratégie de durée de vie de cette instance.An object of type ILease used to control the lifetime policy for this instance. Il s'agit de l'objet de service de durée de vie en cours de cette instance s'il existe ; sinon, il s'agit d'un nouvel objet de service de durée de vie initialisé en utilisant la valeur de la propriété LeaseManagerPollTime.This is the current lifetime service object for this instance if one exists; otherwise, a new lifetime service object initialized to the value of the LeaseManagerPollTime property.

Exceptions

L'appelant immédiat n'a pas d'autorisation d'accès à l'infrastructure.The immediate caller does not have infrastructure permission.

Exemples

L’exemple de code suivant illustre la création d’un bail.The following code example demonstrates creating a lease.

public ref class MyClass: public MarshalByRefObject
{
public:
   
   [System::Security::Permissions::SecurityPermissionAttribute
   (System::Security::Permissions::SecurityAction::Demand,
   Flags=System::Security::Permissions::SecurityPermissionFlag::Infrastructure)]
   virtual Object^ InitializeLifetimeService() override
   {
      ILease^ lease = dynamic_cast<ILease^>(MarshalByRefObject::InitializeLifetimeService());
      if ( lease->CurrentState == LeaseState::Initial )
      {
         lease->InitialLeaseTime = TimeSpan::FromMinutes( 1 );
         lease->SponsorshipTimeout = TimeSpan::FromMinutes( 2 );
         lease->RenewOnCallTime = TimeSpan::FromSeconds( 2 );
      }

      return lease;
   }

};

public class MyClass : MarshalByRefObject
{
  [SecurityPermissionAttribute(SecurityAction.Demand, 
                               Flags=SecurityPermissionFlag.Infrastructure)]
  public override Object InitializeLifetimeService()
  {
    ILease lease = (ILease)base.InitializeLifetimeService();
    if (lease.CurrentState == LeaseState.Initial)
    {
         lease.InitialLeaseTime = TimeSpan.FromMinutes(1);
         lease.SponsorshipTimeout = TimeSpan.FromMinutes(2);
          lease.RenewOnCallTime = TimeSpan.FromSeconds(2);
    }
      return lease;
  }
}
Public Class LSClass
    Inherits MarshalByRefObject
    
    <SecurityPermissionAttribute(SecurityAction.Demand, _
                                 Flags:=SecurityPermissionFlag.Infrastructure)> _
    Public Overrides Function InitializeLifetimeService() As Object
        Dim lease As ILease = CType(MyBase.InitializeLifetimeService(), ILease)
        If lease.CurrentState = LeaseState.Initial Then
            lease.InitialLeaseTime = TimeSpan.FromMinutes(1)
            lease.SponsorshipTimeout = TimeSpan.FromMinutes(2)
            lease.RenewOnCallTime = TimeSpan.FromSeconds(2)
        End If
        Return lease
    End Function


    Public Shared Sub Main()  
    ' The main thread processing is here.
    End Sub
End Class

Remarques

Pour plus d’informations sur les services de durée LifetimeServices de vie, consultez la classe.For more information about lifetime services, see the LifetimeServices class.

Sécurité

SecurityCriticalAttribute
Requiert une confiance totale pour l’appelant immédiat.requires full trust for the immediate caller. Ce membre ne peut pas être utilisé par du code de confiance partielle ou transparent.This member cannot be used by partially trusted or transparent code.

S’applique à