• Article

Classe BusinessLogicHandler

Represents the server registration for the managed code assembly that implements a business logic handler.

Espace de noms :  Microsoft.SqlServer.Replication
Assembly :  Microsoft.SqlServer.Rmo (dans Microsoft.SqlServer.Rmo.dll)

Syntaxe

'Déclaration
Public NotInheritable Class BusinessLogicHandler
'Utilisation
Dim instance As BusinessLogicHandler

public sealed class BusinessLogicHandler

public ref class BusinessLogicHandler sealed

[<SealedAttribute>]
type BusinessLogicHandler =  class end

public final class BusinessLogicHandler

Notes

Business logic handlers are registered by calling RegisterBusinessLogicHandler. The properties of the BusinessLogicHandler object must be set before calling RegisterBusinessLogicHandler.

Business logic handler registrations are removed by calling UnregisterBusinessLogicHandler.

Call EnumBusinessLogicHandlers to get a list of business logic handlers that are registered on a server.

Exemples

           // Specify the Distributor name and business logic properties.
            string distributorName = publisherInstance;
            string assemblyName = @"C:\Program Files\Microsoft SQL Server\100\COM\CustomLogic.dll";
            string className = "Microsoft.Samples.SqlServer.BusinessLogicHandler.OrderEntryBusinessLogicHandler";
            string friendlyName = "OrderEntryLogic";

            ReplicationServer distributor;
            BusinessLogicHandler customLogic;

                // Create a connection to the Distributor.
            ServerConnection distributorConn = new ServerConnection(distributorName);

            try
            {
                // Connect to the Distributor.
                distributorConn.Connect();

                // Set the Distributor properties.
                distributor = new ReplicationServer(distributorConn);

                // Set the business logic handler properties.
                customLogic = new BusinessLogicHandler();
                customLogic.DotNetAssemblyName = assemblyName;
                customLogic.DotNetClassName = className;
                customLogic.FriendlyName = friendlyName;
                customLogic.IsDotNetAssembly = true;

                Boolean isRegistered = false;

                // Check if the business logic handler is already registered at the Distributor.
                foreach (BusinessLogicHandler registeredLogic
                    in distributor.EnumBusinessLogicHandlers())
                {
                    if (registeredLogic == customLogic)
                    {
                        isRegistered = true;
                    }
                }

                // Register the custom logic.
                if (!isRegistered)
                {
                    distributor.RegisterBusinessLogicHandler(customLogic);
                }
            }
            catch (Exception ex)
            {
                // Do error handling here.
                throw new ApplicationException(string.Format(
                    "The {0} assembly could not be registered.",
                    assemblyName), ex);
            }
            finally
            {
                distributorConn.Disconnect();
            }

' Specify the Distributor name and business logic properties.
Dim distributorName As String = publisherInstance
Dim assemblyName As String = "C:\Program Files\Microsoft SQL Server\100\COM\CustomLogic.dll"
Dim className As String = "Microsoft.Samples.SqlServer.BusinessLogicHandler.OrderEntryBusinessLogicHandler"
Dim friendlyName As String = "OrderEntryLogic"

Dim distributor As ReplicationServer
Dim customLogic As BusinessLogicHandler

' Create a connection to the Distributor.
Dim distributorConn As ServerConnection = New ServerConnection(distributorName)

Try
    ' Connect to the Distributor.
    distributorConn.Connect()

    ' Set the Distributor properties.
    distributor = New ReplicationServer(distributorConn)

    ' Set the business logic handler properties.
    customLogic = New BusinessLogicHandler()
    customLogic.DotNetAssemblyName = assemblyName
    customLogic.DotNetClassName = className
    customLogic.FriendlyName = friendlyName
    customLogic.IsDotNetAssembly = True

    Dim isRegistered As Boolean = False

    ' Check if the business logic handler is already registered at the Distributor.
    For Each registeredLogic As BusinessLogicHandler _
    In distributor.EnumBusinessLogicHandlers
        If registeredLogic Is customLogic Then
            isRegistered = True
        End If
    Next

    ' Register the custom logic.
    If Not isRegistered Then
        distributor.RegisterBusinessLogicHandler(customLogic)
    End If
Catch ex As Exception
    ' Do error handling here.
    Throw New ApplicationException(String.Format( _
     "The {0} assembly could not be registered.", _
     assemblyName), ex)
Finally
    distributorConn.Disconnect()
End Try

Hiérarchie d'héritage

System. . :: . .Object
  Microsoft.SqlServer.Replication..::..BusinessLogicHandler

Sécurité des threads

Tous les membres publics static (Shared dans Visual Basic) de ce type sont thread-safe. Il n'est pas garanti que les membres d'instance soient thread-safe.