TransSubscription クラス
トランザクション パブリケーションまたはスナップショット パブリケーションへのプッシュ サブスクリプションを表します。
名前空間: Microsoft.SqlServer.Replication
アセンブリ: Microsoft.SqlServer.Rmo (Microsoft.SqlServer.Rmo.dll)
構文
'宣言
Public NotInheritable Class TransSubscription _
Inherits Subscription
'使用
Dim instance As TransSubscription
public sealed class TransSubscription : Subscription
public ref class TransSubscription sealed : public Subscription
[<SealedAttribute>]
type TransSubscription =
class
inherit Subscription
end
public final class TransSubscription extends Subscription
説明
パブリッシャにリモート ディストリビュータを構成するとき、パラメータに指定した値は、SynchronizationAgentProcessSecurity も含めてすべてプレーン テキストとしてディストリビュータに送信されます。Create メソッドを呼び出す前に、パブリッシャとリモート ディストリビュータ間の接続を暗号化する必要があります。詳細については、「SQL Server への接続の暗号化」を参照してください。
サブスクリプションが SQL Server 以外のパブリッシャに属している場合、ConnectionContext プロパティはパブリッシャではなくディストリビュータに設定され、DatabaseName プロパティはパブリケーション データベースではなくディストリビューション データベースに設定され、PublisherName プロパティは SQL Server 以外のパブリッシャの名前に設定されます。
この名前空間、クラス、またはメンバは、.NET Framework 2.0 でのみサポートされています。
スレッド セーフ
この型の public static (Microsoft Visual Basic では Shared) のすべてのメンバは、マルチスレッド操作で安全に使用できます。インスタンス メンバの場合は、スレッド セーフであるとは限りません。
使用例
// Define the Publisher, publication, and databases.
string publicationName = "AdvWorksProductTran";
string publisherName = publisherInstance;
string subscriberName = subscriberInstance;
string subscriptionDbName = "AdventureWorksReplica";
string publicationDbName = "AdventureWorks";
//Create a connection to the Publisher.
ServerConnection conn = new ServerConnection(subscriberName);
// Create the objects that we need.
TransPublication publication;
TransSubscription subscription;
try
{
// Connect to the Publisher.
conn.Connect();
// Ensure that the publication exists and that
// it supports push subscriptions.
publication = new TransPublication();
publication.Name = publicationName;
publication.DatabaseName = publicationDbName;
publication.ConnectionContext = conn;
if (publication.IsExistingObject)
{
if ((publication.Attributes & PublicationAttributes.AllowPush) == 0)
{
publication.Attributes |= PublicationAttributes.AllowPush;
}
// Define the push subscription.
subscription = new TransSubscription();
subscription.ConnectionContext = conn;
subscription.SubscriberName = subscriberName;
subscription.PublicationName = publicationName;
subscription.DatabaseName = publicationDbName;
subscription.SubscriptionDBName = subscriptionDbName;
// Specify the Windows login credentials for the Distribution Agent job.
subscription.SynchronizationAgentProcessSecurity.Login = winLogin;
subscription.SynchronizationAgentProcessSecurity.Password = winPassword;
// By default, subscriptions to transactional publications are synchronized
// continuously, but in this case we only want to synchronize on demand.
subscription.AgentSchedule.FrequencyType = ScheduleFrequencyType.OnDemand;
// Create the push subscription.
subscription.Create();
}
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
{
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 = "AdventureWorksReplica"
Dim publicationDbName As String = "AdventureWorks"
'Create a connection to the Publisher.
Dim conn As ServerConnection = New ServerConnection(subscriberName)
' Create the objects that we need.
Dim publication As TransPublication
Dim subscription As TransSubscription
Try
' Connect to the Publisher.
conn.Connect()
' Ensure that the publication exists and that
' it supports push subscriptions.
publication = New TransPublication()
publication.Name = publicationName
publication.DatabaseName = publicationDbName
publication.ConnectionContext = conn
If publication.IsExistingObject Then
If (publication.Attributes And PublicationAttributes.AllowPush) = 0 Then
publication.Attributes = publication.Attributes _
Or PublicationAttributes.AllowPush
End If
' Define the push subscription.
subscription = New TransSubscription()
subscription.ConnectionContext = conn
subscription.SubscriberName = subscriberName
subscription.PublicationName = publicationName
subscription.DatabaseName = publicationDbName
subscription.SubscriptionDBName = subscriptionDbName
' Specify the Windows login credentials for the Distribution Agent job.
subscription.SynchronizationAgentProcessSecurity.Login = winLogin
subscription.SynchronizationAgentProcessSecurity.Password = winPassword
' By default, subscriptions to transactional publications are synchronized
' continuously, but in this case we only want to synchronize on demand.
subscription.AgentSchedule.FrequencyType = ScheduleFrequencyType.OnDemand
' Create the push subscription.
subscription.Create()
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
conn.Disconnect()
End Try
継承階層
System. . :: . .Object
Microsoft.SqlServer.Replication. . :: . .ReplicationObject
Microsoft.SqlServer.Replication. . :: . .Subscription
Microsoft.SqlServer.Replication..::..TransSubscription
スレッド セーフ
この型の public static (Visual Basic では Shared) のメンバーはすべて、スレッド セーフです。インスタンス メンバーの場合は、スレッド セーフであるとは限りません。