MergeSubscriberType Перечисление
Определение
Важно!
Некоторые сведения относятся к предварительной версии продукта, в которую до выпуска могут быть внесены существенные изменения. Майкрософт не предоставляет никаких гарантий, явных или подразумеваемых, относительно приведенных здесь сведений.
Перечисление дополнительных типов подписки, поддерживаемых репликацией слиянием.
public enum class MergeSubscriberType
public enum MergeSubscriberType
type MergeSubscriberType =
Public Enum MergeSubscriberType
- Наследование
-
MergeSubscriberType
Поля
Anonymous | 3 | Подписка по запросу не зарегистрирована явно на издателе с использованием MakePullSubscriptionWellKnown(String, String, SubscriptionSyncType, MergeSubscriberType, Single). Анонимные подписки необходимы, если требуется создать подписку без регистрации у издателя подписки. Это необходимо для таких случаев, как веб-синхронизация, при которой невозможно установить подключение SQL Server к издателю во время настройки подписки. |
Global | 1 | Подписка является серверной подпиской. Этот тип обычно используется для подписчиков, которые переиздают данные на других подписчиках. |
Local | 2 | Подписка является клиентской подпиской. Этот тип подписки подходит для большинства подписчиков. |
Примеры
// Define the Publisher, publication, and databases.
string publicationName = "AdvWorksSalesOrdersMerge";
string publisherName = publisherInstance;
string subscriberName = subscriberInstance;
string subscriptionDbName = "AdventureWorks2012Replica";
string publicationDbName = "AdventureWorks2012";
string hostname = @"adventure-works\garrett1";
//Create connections to the Publisher and Subscriber.
ServerConnection subscriberConn = new ServerConnection(subscriberName);
ServerConnection publisherConn = new ServerConnection(publisherName);
// Create the objects that we need.
MergePublication publication;
MergePullSubscription subscription;
try
{
// Connect to the Subscriber.
subscriberConn.Connect();
// Ensure that the publication exists and that
// it supports pull subscriptions.
publication = new MergePublication();
publication.Name = publicationName;
publication.DatabaseName = publicationDbName;
publication.ConnectionContext = publisherConn;
if (publication.LoadProperties())
{
if ((publication.Attributes & PublicationAttributes.AllowPull) == 0)
{
publication.Attributes |= PublicationAttributes.AllowPull;
}
// Define the pull subscription.
subscription = new MergePullSubscription();
subscription.ConnectionContext = subscriberConn;
subscription.PublisherName = publisherName;
subscription.PublicationName = publicationName;
subscription.PublicationDBName = publicationDbName;
subscription.DatabaseName = subscriptionDbName;
subscription.HostName = hostname;
// Specify the Windows login credentials for the Merge Agent job.
subscription.SynchronizationAgentProcessSecurity.Login = winLogin;
subscription.SynchronizationAgentProcessSecurity.Password = winPassword;
// Make sure that the agent job for the subscription is created.
subscription.CreateSyncAgentByDefault = true;
// Create the pull subscription at the Subscriber.
subscription.Create();
Boolean registered = false;
// Verify that the subscription is not already registered.
foreach (MergeSubscription existing
in publication.EnumSubscriptions())
{
if (existing.SubscriberName == subscriberName
&& existing.SubscriptionDBName == subscriptionDbName
&& existing.SubscriptionType == SubscriptionOption.Pull)
{
registered = true;
}
}
if (!registered)
{
// Register the local subscription with the Publisher.
publication.MakePullSubscriptionWellKnown(
subscriberName, subscriptionDbName,
SubscriptionSyncType.Automatic,
MergeSubscriberType.Local, 0);
}
}
else
{
// Do something here if the publication does not exist.
throw new ApplicationException(String.Format(
"The publication '{0}' does not exist on {1}.",
publicationName, publisherName));
}
}
catch (Exception ex)
{
// Implement the appropriate error handling here.
throw new ApplicationException(String.Format(
"The subscription to {0} could not be created.", publicationName), ex);
}
finally
{
subscriberConn.Disconnect();
publisherConn.Disconnect();
}
' Define the Publisher, publication, and databases.
Dim publicationName As String = "AdvWorksSalesOrdersMerge"
Dim publisherName As String = publisherInstance
Dim subscriberName As String = subscriberInstance
Dim subscriptionDbName As String = "AdventureWorks2012Replica"
Dim publicationDbName As String = "AdventureWorks2012"
Dim hostname As String = "adventure-works\garrett1"
'Create connections to the Publisher and Subscriber.
Dim subscriberConn As ServerConnection = New ServerConnection(subscriberName)
Dim publisherConn As ServerConnection = New ServerConnection(publisherName)
' Create the objects that we need.
Dim publication As MergePublication
Dim subscription As MergePullSubscription
Try
' Connect to the Subscriber.
subscriberConn.Connect()
' Ensure that the publication exists and that
' it supports pull subscriptions.
publication = New MergePublication()
publication.Name = publicationName
publication.DatabaseName = publicationDbName
publication.ConnectionContext = publisherConn
If publication.LoadProperties() Then
If (publication.Attributes And PublicationAttributes.AllowPull) = 0 Then
publication.Attributes = publication.Attributes _
Or PublicationAttributes.AllowPull
End If
' Define the pull subscription.
subscription = New MergePullSubscription()
subscription.ConnectionContext = subscriberConn
subscription.PublisherName = publisherName
subscription.PublicationName = publicationName
subscription.PublicationDBName = publicationDbName
subscription.DatabaseName = subscriptionDbName
subscription.HostName = hostname
' Specify the Windows login credentials for the Merge Agent job.
subscription.SynchronizationAgentProcessSecurity.Login = winLogin
subscription.SynchronizationAgentProcessSecurity.Password = winPassword
' Make sure that the agent job for the subscription is created.
subscription.CreateSyncAgentByDefault = True
' Create the pull subscription at the Subscriber.
subscription.Create()
Dim registered As Boolean = False
' Verify that the subscription is not already registered.
For Each existing As MergeSubscription In _
publication.EnumSubscriptions()
If existing.SubscriberName = subscriberName Then
registered = True
End If
Next
If Not registered Then
' Register the local subscription with the Publisher.
publication.MakePullSubscriptionWellKnown( _
subscriberName, subscriptionDbName, _
SubscriptionSyncType.Automatic, _
MergeSubscriberType.Local, 0)
End If
Else
' Do something here if the publication does not exist.
Throw New ApplicationException(String.Format( _
"The publication '{0}' does not exist on {1}.", _
publicationName, publisherName))
End If
Catch ex As Exception
' Implement the appropriate error handling here.
Throw New ApplicationException(String.Format( _
"The subscription to {0} could not be created.", publicationName), ex)
Finally
subscriberConn.Disconnect()
publisherConn.Disconnect()
End Try
Комментарии
Это пространство имен, класс или элемент поддерживается только платформой Microsoft .NET Framework версии 2.0.