Classe TransSubscription

  • Articolo

Represents a push subscription to a transactional or snapshot publication.

Gerarchia di ereditarietà

System.Object
  Microsoft.SqlServer.Replication.ReplicationObject
    Microsoft.SqlServer.Replication.Subscription
      Microsoft.SqlServer.Replication.TransSubscription

Spazio dei nomi  Microsoft.SqlServer.Replication
Assembly:  Microsoft.SqlServer.Rmo (in Microsoft.SqlServer.Rmo.dll)

Sintassi

'Dichiarazione
Public NotInheritable Class TransSubscription _
    Inherits Subscription
'Utilizzo
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

Nel tipo TransSubscription sono esposti i membri seguenti.

Costruttori

  Nome Descrizione
Metodo pubblico TransSubscription() Creates a new instance of the TransSubscription class.
Metodo pubblico TransSubscription(String, String, String, String, ServerConnection) Creates a new instance of the TransSubscription class with the specified publication, database, Subscriber, and subscriber database, and with the specified connection to the instance of Microsoft SQL Server.

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Proprietà

  Nome Descrizione
Proprietà pubblica AgentJobId Gets the ID of the agent job used to synchronize the subscription. Ereditato da Subscription.
Proprietà pubblica AgentOffload Gets or sets whether the synchronization agent runs on a computer other than the one where the agent job was created. This property is no longer supported for Distributors running Microsoft SQL Server 2005 and later. Ereditato da Subscription.
Proprietà pubblica AgentOffloadServer Gets or sets the name of the remote computer where the agent runs when using remote agent activation. Ereditato da Subscription.
Proprietà pubblica AgentSchedule Gets the schedule for the agent job used to synchronize the subscription. Ereditato da Subscription.
Proprietà pubblica BackupInformation Gets or sets information needed to initialize a subscription from a backup.
Proprietà pubblica CachePropertyChanges Gets or sets whether to cache changes made to the replication properties or to apply them immediately. Ereditato da ReplicationObject.
Proprietà pubblica ConnectionContext Gets or sets the connection to an instance of Microsoft SQL Server. Ereditato da ReplicationObject.
Proprietà pubblica CreateSyncAgentByDefault Gets or sets whether the agent job used to synchronize the subscription is created by default. Ereditato da Subscription.
Proprietà pubblica DatabaseName Gets or sets the name of the publication database. Ereditato da Subscription.
Proprietà pubblica DtsPackageLocation Gets or sets the location of the Microsoft SQL Server 2000 Data Transformation Services (DTS) package.
Proprietà pubblica DtsPackageName Gets or sets the name of the Microsoft SQL Server 2000 Data Transformation Services (DTS) package that is applied at the Subscriber.
Proprietà pubblica DtsPackagePassword Sets the password used to run the Microsoft SQL Server 2000 Data Transformation Services (DTS) package.
Proprietà pubblica EnabledForSynchronizationManager Specifies whether the subscription can be synchronized using Microsoft Windows Synchronization Manager. Ereditato da Subscription.
Proprietà pubblica FullSubscription Infrastruttura. Gets a value that indicates whether the subscription is full.
Proprietà pubblica IsExistingObject Gets whether the object exists on the server or not. Ereditato da ReplicationObject.
Proprietà pubblica LoopBackDetection Gets or sets whether or not the Distribution Agent sends transactions that originated at the Subscriber back to the Subscriber.
Proprietà pubblica Name Gets the name assigned to an existing subscription. Ereditato da Subscription.
Proprietà pubblica PublicationName Gets or sets the name of the publication to which the subscription subscribes. Ereditato da Subscription.
Proprietà pubblica PublisherName Gets or sets the name of the Publisher when the subscription belongs to a non- SQL Server Publisher.
Proprietà pubblica SecureDtsPackagePassword Sets the password (as a SecureString object) used to run the Microsoft SQL Server 2000 Data Transformation Services (DTS) package.
Proprietà pubblica SqlServerName Gets the name of the Microsoft SQL Server instance to which this object is connected. Ereditato da ReplicationObject.
Proprietà pubblica Status Gets the status of the subscription. Ereditato da Subscription.
Proprietà pubblica SubscriberCatalog Gets or sets the catalog used when making a connection to the OLE DB provider for a non-SQL Server Subscriber.
Proprietà pubblica SubscriberDatasource Name of the data source as understood by the OLE DB provider for a non-SQL Server Subscriber.
Proprietà pubblica SubscriberDatasourceType Identifies the type of data source that is a non-SQL Server Subscriber.
Proprietà pubblica SubscriberLocation Location of the database as understood by the OLE DB provider for the non-SQL Server Subscriber.
Proprietà pubblica SubscriberName Gets or sets the name of the instance of Microsoft SQL Server that is the Subscriber. Ereditato da Subscription.
Proprietà pubblica SubscriberProvider Unique programmatic identifier (PROGID) with which the OLE DB provider for the non-SQL Server Subscriber is registered
Proprietà pubblica SubscriberProviderString OLE DB provider-specific connection string is used to connect to the data source for non-SQL Server Subscribers.
Proprietà pubblica SubscriberSecurity Gets the security context used to connect to the Subscriber. Ereditato da Subscription.
Proprietà pubblica SubscriberType Gets or sets the updating behavior for data changes at the Subscriber.
Proprietà pubblica SubscriptionDBName Gets or sets the name of the database on the Subscriber that receives the replicated data. Ereditato da Subscription.
Proprietà pubblica SubscriptionLSN Gets or sets the log sequence number of the subscription.
Proprietà pubblica SubscriptionType Gets whether the subscription registration is for a push or pull subscription. Ereditato da Subscription.
Proprietà pubblica SynchronizationAgent Gets an instance of the TransSynchronizationAgent class that can be used to synchronize the subscription.
Proprietà pubblica SynchronizationAgentName Gets or sets the name of the agent job created to synchronize the subscription. Ereditato da Subscription.
Proprietà pubblica SynchronizationAgentProcessSecurity Gets the security context that is used to specify the Microsoft Windows account under which the synchronization agent job runs to synchronize the subscription. Ereditato da Subscription.
Proprietà pubblica SyncType Gets or sets the manner in which the subscription is initialized. Ereditato da Subscription.
Proprietà pubblica UserData Gets or sets an object property that allows users to attach their own data to the object. Ereditato da ReplicationObject.

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Metodi

  Nome Descrizione
Metodo pubblico CommitPropertyChanges Sends all the cached property change statements to the instance of Microsoft SQL Server. Ereditato da ReplicationObject.
Metodo pubblico Create Creates the subscription registration at the Publisher. Ereditato da Subscription.
Metodo pubblico Decouple Decouples the referenced replication object from the server. Ereditato da ReplicationObject.
Metodo pubblico Equals Ereditato da Object.
Metodo pubblico GetHashCode Ereditato da Object.
Metodo pubblico GetType Ereditato da Object.
Metodo pubblico Load Loads the properties of an existing object from the server. Ereditato da ReplicationObject.
Metodo pubblico LoadProperties Loads the properties of an existing object from the server. Ereditato da ReplicationObject.
Metodo pubblico Refresh Reloads the properties of the object. Ereditato da ReplicationObject.
Metodo pubblico Reinitialize() Marks the subscription for reinitialization the next time the Distribution Agent runs to synchronize the subscription.
Metodo pubblico Reinitialize(Boolean) Reinitializes the subscription.
Metodo pubblico Remove Deletes the subscription registration at the Publisher and removes replication objects at the Subscriber for a push subscription. Ereditato da Subscription.
Metodo pubblico Script Returns a Transact-SQL script that can be used to create or delete the subscription. Ereditato da Subscription.
Metodo pubblico StopSynchronizationJob Attempts to stop a running Distribution Agent job that is currently synchronizing the subscription.
Metodo pubblico SynchronizeWithJob Starts the agent job to synchronize the subscription.
Metodo pubblico ToString Ereditato da Object.

In alto

Osservazioni

When configuring a Publisher with a remote Distributor, the values supplied for all parameters, including SynchronizationAgentProcessSecurity, are sent to the Distributor as plain text. You should encrypt the connection between the Publisher and its remote Distributor before calling the Create method. For more information, see Crittografia delle connessioni a SQL Server.

When the subscription belongs to a non-SQL Server Publisher, the ConnectionContext property is set to the Distributor instead of Publisher, the DatabaseName property is set to the distribution database instead of the publication database, and the PublisherName property is set to the name of the non-SQL Server Publisher.

Thread Safety

Any public static (Shared in Microsoft Visual Basic) members of this type are safe for multithreaded operations. Any instance members are not guaranteed to be thread safe.

Esempi

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

            //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 = "AdventureWorks2012Replica"
Dim publicationDbName As String = "AdventureWorks2012"

'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

Protezione dei thread

I membri static (Shared in Visual Basic) pubblici di questo tipo sono affidabili. Non è invece garantita la sicurezza dei membri dell'istanza.

Vedere anche

Riferimento

Spazio dei nomi Microsoft.SqlServer.Replication

Altre risorse

Procedura: Creazione di una sottoscrizione push (programmazione RMO)