ReleaseInstanceMode Énumération

Définition

Spécifie quand le système recycle l'objet de service dans le processus d'appel d'opération.Specifies when the system recycles the service object in the operation invocation process.

public enum class ReleaseInstanceMode
public enum ReleaseInstanceMode
type ReleaseInstanceMode = 
Public Enum ReleaseInstanceMode
Héritage
ReleaseInstanceMode

Champs

AfterCall 2

Recycle l'objet après la fin de l'opération.Recycles the object subsequent to the completion of the operation.

BeforeAndAfterCall 3

Recycle l'objet avant d'appeler l'opération et après la fin de l'opération.Recycles the object prior to calling the operation and subsequent to the completion of the operation.

BeforeCall 1

Recycle l'objet avant d'appeler l'opération.Recycles the object prior to calling the operation.

None 0

Recycle l'objet d'après la valeur InstanceContextMode.Recycles the object according to the InstanceContextMode value.

Exemples

Le code d'exemple suivant illustre l'utilisation de ReleaseInstanceMode pour recycler des objets de service avant et après un appel.The following example code shows the use of ReleaseInstanceMode to recycle service objects both before and after a call.

class SampleService : ISampleService
{
  private Guid id;
  private string session;

  public SampleService()
  {
    id = Guid.NewGuid();
    session = OperationContext.Current.SessionId;
    Console.WriteLine("Object {0} has been created.", id);
    Console.WriteLine("For session {0}", session);
  }
  [OperationBehavior(
          ReleaseInstanceMode=ReleaseInstanceMode.BeforeAndAfterCall
  )]
  public string  SampleMethod(string msg)
  {
    Console.WriteLine("The caller said: \"{0}\"", msg);
    Console.WriteLine("For session {0}", OperationContext.Current.SessionId);
    return "The service greets you: " + msg;
  }

  ~SampleService()
  {
    Console.WriteLine("Object {0} has been destroyed.", id);
    Console.WriteLine("For session {0}", session);
  }
}
Friend Class SampleService
    Implements ISampleService
  Private id As Guid
  Private session As String

  Public Sub New()
    id = Guid.NewGuid()
    session = OperationContext.Current.SessionId
    Console.WriteLine("Object {0} has been created.", id)
    Console.WriteLine("For session {0}", session)
  End Sub
  <OperationBehavior(ReleaseInstanceMode:=ReleaseInstanceMode.BeforeAndAfterCall)> _
  Public Function SampleMethod(ByVal msg As String) As String Implements ISampleService.SampleMethod
    Console.WriteLine("The caller said: ""{0}""", msg)
    Console.WriteLine("For session {0}", OperationContext.Current.SessionId)
    Return "The service greets you: " & msg
  End Function

  Protected Overrides Sub Finalize()
    Console.WriteLine("Object {0} has been destroyed.", id)
    Console.WriteLine("For session {0}", session)
  End Sub
End Class

Remarques

Utilisez avec la ReleaseInstanceMode propriété pour informer Windows Communication Foundation (WCF) que l’objet de service en cours doit être recyclé à un point particulier dans le processus d’appel. ReleaseInstanceModeUse the ReleaseInstanceMode with the ReleaseInstanceMode property to inform Windows Communication Foundation (WCF) that the current service object must be recycled at a particular point in the invocation process. Par défaut, l'objet de service est recyclé en fonction de la valeur InstanceContextMode.The default behavior is to recycle a service object according to the InstanceContextMode value.

S’applique à