TransSynchronizationAgent Класс

Определение

public ref class TransSynchronizationAgent : MarshalByRefObject, IDisposable, Microsoft::SqlServer::Replication::ITransSynchronizationAgent

[System.Runtime.InteropServices.ClassInterface(System.Runtime.InteropServices.ClassInterfaceType.AutoDispatch)]
[System.Runtime.InteropServices.ComSourceInterfaces(typeof(Microsoft.SqlServer.Replication.IComStatusEvent))]
[System.Runtime.InteropServices.ComVisible(true)]
[System.Runtime.InteropServices.Guid("adeda98a-bdfc-4029-b6fb-991d6b468395")]
public class TransSynchronizationAgent : MarshalByRefObject, IDisposable, Microsoft.SqlServer.Replication.ITransSynchronizationAgent

[<System.Runtime.InteropServices.ClassInterface(System.Runtime.InteropServices.ClassInterfaceType.AutoDispatch)>]
[<System.Runtime.InteropServices.ComSourceInterfaces(typeof(Microsoft.SqlServer.Replication.IComStatusEvent))>]
[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Runtime.InteropServices.Guid("adeda98a-bdfc-4029-b6fb-991d6b468395")>]
type TransSynchronizationAgent = class
    inherit MarshalByRefObject
    interface IDisposable
    interface ITransSynchronizationAgent

Public Class TransSynchronizationAgent
Inherits MarshalByRefObject
Implements IDisposable, ITransSynchronizationAgent

Наследование

MarshalByRefObject

TransSynchronizationAgent

Атрибуты

ClassInterfaceAttribute ComSourceInterfacesAttribute ComVisibleAttribute GuidAttribute

Реализации

ITransSynchronizationAgent IDisposable

Примеры

В следующем примере Synchronize метод вызывается на экземпляре TransSynchronizationAgent класса, к которому доступен из свойства SynchronizationAgent , для синхронизации push-подписки.

// Define the server, publication, and database names.
string subscriberName = subscriberInstance;
string publisherName = publisherInstance;
string publicationName = "AdvWorksProductTran";
string subscriptionDbName = "AdventureWorks2012Replica";
string publicationDbName = "AdventureWorks2012";

// Create a connection to the Publisher.
ServerConnection conn = new ServerConnection(publisherName);

TransSubscription subscription;

try
{
    // Connect to the Publisher.
    conn.Connect();

    // Define the push subscription.
    subscription = new TransSubscription();
    subscription.ConnectionContext = conn;
    subscription.DatabaseName = publicationDbName;
    subscription.PublicationName = publicationName;
    subscription.SubscriptionDBName = subscriptionDbName;
    subscription.SubscriberName = subscriberName;

    // If the push subscription exists, start the synchronization.
    if (subscription.LoadProperties())
    {
        // Check that we have enough metadata to start the agent.
        if (subscription.SubscriberSecurity != null)
        {
            // Synchronously start the Distribution Agent for the subscription.
            subscription.SynchronizationAgent.Synchronize();
        }
        else
        {
            throw new ApplicationException("There is insufficent metadata to " +
                "synchronize the subscription. Recreate the subscription with " +
                "the agent job or supply the required agent properties at run time.");
        }
    }
    else
    {
        // Do something here if the push subscription does not exist.
        throw new ApplicationException(String.Format(
            "The subscription to '{0}' does not exist on {1}",
            publicationName, subscriberName));
    }
}
catch (Exception ex)
{
    // Implement appropriate error handling here.
    throw new ApplicationException("The subscription could not be synchronized.", ex);
}
finally
{
    conn.Disconnect();
}

' Define the server, publication, and database names.
Dim subscriberName As String = subscriberInstance
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksProductTran"
Dim subscriptionDbName As String = "AdventureWorks2012Replica"
Dim publicationDbName As String = "AdventureWorks2012"

' Create a connection to the Publisher.
Dim conn As ServerConnection = New ServerConnection(publisherName)

Dim subscription As TransSubscription

Try
    ' Connect to the Publisher.
    conn.Connect()

    ' Define the push subscription.
    subscription = New TransSubscription()
    subscription.ConnectionContext = conn
    subscription.DatabaseName = publicationDbName
    subscription.PublicationName = publicationName
    subscription.SubscriptionDBName = subscriptionDbName
    subscription.SubscriberName = subscriberName

    ' If the push subscription exists, start the synchronization.
    If subscription.LoadProperties() Then
        ' Check that we have enough metadata to start the agent.
        If Not subscription.SubscriberSecurity Is Nothing Then

            ' Synchronously start the Distribution Agent for the subscription.
            subscription.SynchronizationAgent.Synchronize()
        Else
            Throw New ApplicationException("There is insufficent metadata to " + _
             "synchronize the subscription. Recreate the subscription with " + _
             "the agent job or supply the required agent properties at run time.")
        End If
    Else
        ' Do something here if the push subscription does not exist.
        Throw New ApplicationException(String.Format( _
         "The subscription to '{0}' does not exist on {1}", _
         publicationName, subscriberName))
    End If
Catch ex As Exception
    ' Implement appropriate error handling here.
    Throw New ApplicationException("The subscription could not be synchronized.", ex)
Finally
    conn.Disconnect()
End Try

Комментарии

Класс TransSynchronizationAgent поддерживает возможность программной синхронизации подписок на транзакционные или снимочные публикации.

Потокобезопасность

Класс TransSynchronizationAgent не поддерживает многопоточные квартиры. Вы можете указать однопоточную квартиру, объявив [STAThread] атрибут на методе, который является основной точкой входа для приложения. Это стандарт для приложений на базе Microsoft Windows, которые создаются с помощью Microsoft Visual Studio.