Como excluir uma assinatura push (Programação RMO)
Você pode excluir assinaturas push programaticamente, usando RMO (Replication Management Objects). As classes RMO a serem usadas para excluir uma assinatura push dependem do tipo de publicação em que a assinatura push está inscrita.
Para excluir uma assinatura push de um instantâneo ou publicação transacional
Crie uma conexão com o Assinante usando a classe ServerConnection.
Crie uma instância da classe TransSubscription.
Defina as propriedades PublicationName, SubscriptionDBName, SubscriberName e DatabaseName.
Defina a propriedade ServerConnection da etapa 1 para o ConnectionContext.
Verifique a propriedade IsExistingObject para confirmar se a assinatura existe. Se o valor dessa propriedade for false, as propriedades de assinatura na etapa 2 foram definidas incorretamente ou a assinatura não existe.
Chame o método Remove.
Para excluir uma assinatura push para uma publicação de mesclagem.
Crie uma conexão com o Assinante usando a classe ServerConnection.
Crie uma instância da classe MergeSubscription.
Defina as propriedades PublicationName, SubscriptionDBName, SubscriberName e DatabaseName.
Defina a propriedade ServerConnection da etapa 1 para o ConnectionContext.
Verifique a propriedade IsExistingObject para confirmar se a assinatura existe. Se o valor dessa propriedade for false, as propriedades de assinatura na etapa 2 foram definidas incorretamente ou a assinatura não existe.
Chame o método Remove.
Exemplo
Esse exemplo exclui uma assinatura push para uma publicação transacional.
// Define the Publisher, publication, and databases.
string publicationName = "AdvWorksProductTran";
string publisherName = publisherInstance;
string subscriberName = subscriberInstance;
string subscriptionDbName = "AdventureWorks2008R2Replica";
string publicationDbName = "AdventureWorks2008R2";
//Create a connection to the Publisher.
ServerConnection conn = new ServerConnection(publisherName);
// Create the objects that we need.
TransSubscription subscription;
try
{
// Connect to the Subscriber.
conn.Connect();
// Define the pull subscription.
subscription = new TransSubscription();
subscription.ConnectionContext = conn;
subscription.SubscriberName = subscriberName;
subscription.PublicationName = publicationName;
subscription.SubscriptionDBName = subscriptionDbName;
subscription.DatabaseName = publicationDbName;
// Delete the pull subscription, if it exists.
if (subscription.IsExistingObject)
{
// Delete the pull subscription at the Subscriber.
subscription.Remove();
}
else
{
throw new ApplicationException(String.Format(
"The subscription to {0} does not exist on {1}",
publicationName, subscriberName));
}
}
catch (Exception ex)
{
// Implement the appropriate error handling here.
throw new ApplicationException(String.Format(
"The subscription to {0} could not be deleted.", publicationName), ex);
}
finally
{
conn.Disconnect();
}
' Define the Publisher, publication, and databases.
Dim publicationName As String = "AdvWorksProductTran"
Dim publisherName As String = publisherInstance
Dim subscriberName As String = subscriberInstance
Dim subscriptionDbName As String = "AdventureWorks2008R2Replica"
Dim publicationDbName As String = "AdventureWorks2008R2"
'Create a connection to the Publisher.
Dim conn As ServerConnection = New ServerConnection(publisherName)
' Create the objects that we need.
Dim subscription As TransSubscription
Try
' Connect to the Subscriber.
conn.Connect()
' Define the pull subscription.
subscription = New TransSubscription()
subscription.ConnectionContext = conn
subscription.SubscriberName = subscriberName
subscription.PublicationName = publicationName
subscription.SubscriptionDBName = subscriptionDbName
subscription.DatabaseName = publicationDbName
' Delete the pull subscription, if it exists.
If subscription.IsExistingObject Then
' Delete the pull subscription at the Subscriber.
subscription.Remove()
Else
Throw New ApplicationException(String.Format( _
"The subscription to {0} does not exist on {1}", _
publicationName, subscriberName))
End If
Catch ex As Exception
' Implement the appropriate error handling here.
Throw New ApplicationException(String.Format( _
"The subscription to {0} could not be deleted.", publicationName), ex)
Finally
conn.Disconnect()
End Try
Esse exemplo exclui uma assinatura push para uma publicação de mesclagem.
// Define the Publisher, publication, and databases.
string publicationName = "AdvWorksSalesOrdersMerge";
string publisherName = publisherInstance;
string subscriberName = subscriberInstance;
string subscriptionDbName = "AdventureWorks2008R2Replica";
string publicationDbName = "AdventureWorks2008R2";
//Create a connection to the Publisher.
ServerConnection conn = new ServerConnection(publisherName);
// Create the objects that we need.
MergeSubscription subscription;
try
{
// Connect to the Subscriber.
conn.Connect();
// Define the pull subscription.
subscription = new MergeSubscription();
subscription.ConnectionContext = conn;
subscription.SubscriberName = subscriberName;
subscription.PublicationName = publicationName;
subscription.SubscriptionDBName = subscriptionDbName;
subscription.DatabaseName = publicationDbName;
// Delete the pull subscription, if it exists.
if (subscription.IsExistingObject)
{
// Delete the pull subscription at the Subscriber.
subscription.Remove();
}
else
{
throw new ApplicationException(String.Format(
"The subscription to {0} does not exist on {1}",
publicationName, subscriberName));
}
}
catch (Exception ex)
{
// Implement the appropriate error handling here.
throw new ApplicationException(String.Format(
"The subscription to {0} could not be deleted.", publicationName), ex);
}
finally
{
conn.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 = "AdventureWorks2008R2Replica"
Dim publicationDbName As String = "AdventureWorks2008R2"
'Create a connection to the Publisher.
Dim conn As ServerConnection = New ServerConnection(publisherName)
' Create the objects that we need.
Dim subscription As MergeSubscription
Try
' Connect to the Subscriber.
conn.Connect()
' Define the pull subscription.
subscription = New MergeSubscription()
subscription.ConnectionContext = conn
subscription.SubscriberName = subscriberName
subscription.PublicationName = publicationName
subscription.SubscriptionDBName = subscriptionDbName
subscription.DatabaseName = publicationDbName
' Delete the pull subscription, if it exists.
If subscription.IsExistingObject Then
' Delete the pull subscription at the Subscriber.
subscription.Remove()
Else
Throw New ApplicationException(String.Format( _
"The subscription to {0} does not exist on {1}", _
publicationName, subscriberName))
End If
Catch ex As Exception
' Implement the appropriate error handling here.
Throw New ApplicationException(String.Format( _
"The subscription to {0} could not be deleted.", publicationName), ex)
Finally
conn.Disconnect()
End Try
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