ObjectPoolingAttribute Constructeurs

public:
 ObjectPoolingAttribute();

public ObjectPoolingAttribute ();

Public Sub New ()

Exemples

L’exemple de code suivant illustre l’utilisation de cet attribut.

#using <System.Windows.Forms.dll>
#using <System.Transactions.dll>
#using <System.EnterpriseServices.dll>

using namespace System;
using namespace System::EnterpriseServices;
using namespace System::Windows::Forms;


[assembly:ApplicationName("ObjectInspector")];
[assembly:ApplicationActivation(ActivationOption::Server)];
[assembly:System::Reflection::AssemblyKeyFile("Inspector.snk")];
[JustInTimeActivation]
[ObjectPooling(MinPoolSize=2,MaxPoolSize=100,CreationTimeout=1000)]
public ref class ObjectInspector: public ServicedComponent
{
public:
   String^ IdentifyObject( Object^ obj )
   {
      // Return this object to the pool after use.
      ContextUtil::DeactivateOnReturn = true;

      // Get the supplied object's type.        
      Type^ objType = obj->GetType();

      // Return its name.
      return (objType->FullName);
   }

protected:
   virtual void Activate() override
   {
      MessageBox::Show( String::Format( "Now entering...\nApplication: {0}\nInstance: {1}\nContext: {2}\n", ContextUtil::ApplicationId.ToString(), ContextUtil::ApplicationInstanceId.ToString(), ContextUtil::ContextId.ToString() ) );
   }

   virtual void Deactivate() override
   {
      MessageBox::Show( "Bye Bye!" );
   }

   // This object can be pooled.
   virtual bool CanBePooled() override
   {
      return (true);
   }
};

using System;
using System.EnterpriseServices;
using System.Windows.Forms;

[assembly: ApplicationName("ObjectInspector")]
[assembly: ApplicationActivation(ActivationOption.Server)]
[assembly: System.Reflection.AssemblyKeyFile("Inspector.snk")]

[JustInTimeActivation]
[ObjectPooling(MinPoolSize=2, MaxPoolSize=100, CreationTimeout=1000)]
public class ObjectInspector : ServicedComponent
{

    public string IdentifyObject (Object obj)
    {
        // Return this object to the pool after use.
        ContextUtil.DeactivateOnReturn = true;

        // Get the supplied object's type.
        Type objType = obj.GetType();

        // Return its name.
        return(objType.FullName);
    }

    protected override void Activate()
    {
        MessageBox.Show( String.Format("Now entering...\nApplication: {0}\nInstance: {1}\nContext: {2}\n",
                                       ContextUtil.ApplicationId.ToString(), ContextUtil.ApplicationInstanceId.ToString(),
                                       ContextUtil.ContextId.ToString() ) );
    }

    protected override void Deactivate()
    {
        MessageBox.Show("Bye Bye!");
    }

    // This object can be pooled.
    protected override bool CanBePooled()
    {
        return(true);
    }
}

Imports System.EnterpriseServices
Imports System.Windows.Forms



<Assembly: ApplicationName("ObjectInspector")> 
<Assembly: ApplicationActivation(ActivationOption.Server)> 
<Assembly: System.Reflection.AssemblyKeyFile("Inspector.snk")> 
 
<JustInTimeActivation(), ObjectPooling(MinPoolSize := 2, MaxPoolSize := 100, CreationTimeout := 1000)>  _
Public Class ObjectInspector
    Inherits ServicedComponent
    
    
    Public Function IdentifyObject(ByVal obj As [Object]) As String 
        ' Return this object to the pool after use.
        ContextUtil.DeactivateOnReturn = True
        
        ' Get the supplied object's type.        
        Dim objType As Type = obj.GetType()
        
        ' Return its name.
        Return objType.FullName
    
    End Function 'IdentifyObject

    Protected Overrides Sub Activate() 
        MessageBox.Show(String.Format("Now entering..." + vbLf + "Application: {0}" + vbLf + "Instance: {1}" + vbLf + "Context: {2}" + vbLf, ContextUtil.ApplicationId.ToString(), ContextUtil.ApplicationInstanceId.ToString(), ContextUtil.ContextId.ToString()))
    
    End Sub

    Protected Overrides Sub Deactivate() 
        MessageBox.Show("Bye Bye!")
    
    End Sub

    ' This object can be pooled.
    Protected Overrides Function CanBePooled() As Boolean 
        Return True
    
    End Function 'CanBePooled

End Class

Remarques

Le tableau suivant montre les valeurs de propriété initiales d’un instance de ObjectPoolingAttribute.

public:
 ObjectPoolingAttribute(bool enable);

public ObjectPoolingAttribute (bool enable);

new System.EnterpriseServices.ObjectPoolingAttribute : bool -> System.EnterpriseServices.ObjectPoolingAttribute

Public Sub New (enable As Boolean)

Paramètres

Exemples

L’exemple de code suivant crée un nouveau ObjectPoolingAttribute.

[ObjectPooling(true)]
public ref class ObjectPoolingAttributeCtorBool : public ServicedComponent
{
};

[ObjectPooling(true)]
public class ObjectPoolingAttribute_Ctor_Bool : ServicedComponent
{
}

<ObjectPooling(True)>  _
Public Class ObjectPoolingAttribute_Ctor_Bool
    Inherits ServicedComponent
End Class

public:
 ObjectPoolingAttribute(int minPoolSize, int maxPoolSize);

public ObjectPoolingAttribute (int minPoolSize, int maxPoolSize);

new System.EnterpriseServices.ObjectPoolingAttribute : int * int -> System.EnterpriseServices.ObjectPoolingAttribute

Public Sub New (minPoolSize As Integer, maxPoolSize As Integer)

Paramètres

Exemples

L’exemple de code suivant crée un nouveau ObjectPoolingAttribute.

[ObjectPooling(1, 10)]
public ref class ObjectPoolingAttributeCtorIntInt : public ServicedComponent
{
};

[ObjectPooling(1, 10)]
public class ObjectPoolingAttribute_Ctor_Int_Int : ServicedComponent
{
}

<ObjectPooling(1, 10)>  _
Public Class ObjectPoolingAttribute_Ctor_Int_Int
    Inherits ServicedComponent
End Class

public:
 ObjectPoolingAttribute(bool enable, int minPoolSize, int maxPoolSize);

public ObjectPoolingAttribute (bool enable, int minPoolSize, int maxPoolSize);

new System.EnterpriseServices.ObjectPoolingAttribute : bool * int * int -> System.EnterpriseServices.ObjectPoolingAttribute

Public Sub New (enable As Boolean, minPoolSize As Integer, maxPoolSize As Integer)

Paramètres

Exemples

L’exemple de code suivant crée un nouveau ObjectPoolingAttribute.

[ObjectPooling(true, 1, 10)]
public ref class ObjectPoolingAttributeCtorBoolIntInt : 
    public ServicedComponent
{
};

[ObjectPooling(true, 1, 10)]
public class ObjectPoolingAttribute_Ctor_Bool_Int_Int : ServicedComponent
{
}

<ObjectPooling(True, 1, 10)>  _
Public Class ObjectPoolingAttribute_Ctor_Bool_Int_Int
    Inherits ServicedComponent
End Class