Класс MergePullSubscription

Represents a pull subscription to a merge publication.

Иерархия наследования

System.Object
  Microsoft.SqlServer.Replication.ReplicationObject
    Microsoft.SqlServer.Replication.PullSubscription
      Microsoft.SqlServer.Replication.MergePullSubscription

Пространство имен:  Microsoft.SqlServer.Replication
Сборка:  Microsoft.SqlServer.Rmo (в Microsoft.SqlServer.Rmo.dll)

Синтаксис

'Декларация
Public NotInheritable Class MergePullSubscription _
    Inherits PullSubscription
'Применение
Dim instance As MergePullSubscription

public sealed class MergePullSubscription : PullSubscription

public ref class MergePullSubscription sealed : public PullSubscription

[<SealedAttribute>]
type MergePullSubscription =  
    class 
        inherit PullSubscription 
    end

public final class MergePullSubscription extends PullSubscription

Тип MergePullSubscription обеспечивает доступ к следующим элементам.

Конструкторы

	Имя	Описание
	MergePullSubscription()	Creates a new instance of the MergePullSubscription class.
	MergePullSubscription(String, String, String, String, ServerConnection)	Creates a new instance of the MergePullSubscription class with the specified database, Publisher, publication, and Subscriber connection.
	MergePullSubscription(String, String, String, String, ServerConnection, Boolean)	Creates a new instance of the MergePullSubscription class with the specified database, Publisher, publication, Subscriber connection, and whether the agent job is created.

В начало

Свойства

	Имя	Описание
	AgentJobId	Gets the ID of the agent job used to synchronize the subscription. (Производный от PullSubscription.)
	AgentOffload	Gets or sets whether or not 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. (Производный от PullSubscription.)
	AgentOffloadServer	Gets or sets the name of the remote computer where the agent runs when using remote agent activation. (Производный от PullSubscription.)
	AgentSchedule	Gets the schedule for the agent job used to synchronize the subscription. (Производный от PullSubscription.)
	AltSnapshotFolder	Gets or sets the location where the publication snapshot files are obtained when the default snapshot location at the Distributor is not used. (Производный от PullSubscription.)
	CachePropertyChanges	Gets or sets whether to cache changes made to the replication properties or to apply them immediately. (Производный от ReplicationObject.)
	ConnectionContext	Gets or sets the connection to an instance of Microsoft SQL Server. (Производный от ReplicationObject.)
	CreateSyncAgentByDefault	Gets or sets whether or not the agent job used to start the Replication Agent to synchronize the subscription is created when the subscription is created. (Производный от PullSubscription.)
	DatabaseName	Gets or sets the name of the subscription database. (Производный от PullSubscription.)
	Description	Gets or sets a textual description of the pull subscription. (Производный от PullSubscription.)
	DistributorName	Gets or sets the instance of Microsoft SQL Server that is the Distributor and is distributing the publication to which the subscription subscribes. (Производный от PullSubscription.)
	DistributorSecurity	Gets the security context used to connect to the Distributor. (Производный от PullSubscription.)
	DynamicSnapshotLocation	Gets or sets the file location for the subscription-specific snapshot files when the publication uses a parameterized row filter.
	EnabledForSynchronizationManager	Specifies whether or not the subscription can be synchronized using Windows Synchronization Manager. (Производный от PullSubscription.)
	FtpAddress	Инфраструктура. Gets or sets the IP address of the FTP server. (Производный от PullSubscription.)
	FtpLogin	Инфраструктура. Gets or sets the FTP login. (Производный от PullSubscription.)
	FtpPassword	Инфраструктура. Gets or sets the FTP password. (Производный от PullSubscription.)
	FtpPort	Инфраструктура. Gets or sets the port number for the FTP server. (Производный от PullSubscription.)
	HostName	Gets or sets the value supplied to the HOST_NAME function when this function is used in the parameterized row filter that defines the Subscriber's data partition.
	InternetLogin	Gets or sets the login used with HTTP Basic Authentication when connecting to the Web server during Web synchronization.
	InternetPassword	Gets or sets the password for the supplied InternetLogin value when connecting to the Web server during Web synchronization.
	InternetSecurityMode	Gets or sets the HTTP authentication method used when connecting to the Web server during Web synchronization.
	InternetTimeout	Gets or sets the HTTP timeout, in seconds, when connecting to the Web server during Web synchronization.
	InternetUrl	Gets or sets the URL to use when synchronizing the subscription using Web synchronization.
	IsExistingObject	Gets whether the object exists on the server or not. (Производный от ReplicationObject.)
	LastAgentDateTime	Gets the date and time when the subscription was last synchronized. (Производный от PullSubscription.)
	LastAgentStatus	Gets the status of the most recent synchronization of the subscription. (Производный от PullSubscription.)
	LastAgentSummary	Gets a summary of the result of the most recent synchronization of the subscription. (Производный от PullSubscription.)
	Name	Gets the name generated for the pull subscription. (Производный от PullSubscription.)
	Priority	Gets or sets the weighting of this server subscription relative to other server subscriptions when resolving conflicts between subscriptions.
	PublicationDBName	Gets or sets the name of the publication database. (Производный от PullSubscription.)
	PublicationName	Gets or sets the name of the publication to which the subscription subscribes. (Производный от PullSubscription.)
	PublisherName	Gets or sets the name of the Publisher. (Производный от PullSubscription.)
	PublisherSecurity	Gets or sets the security context used by the Synchronization Agent when connecting to the Publisher. (Производный от PullSubscription.)
	SecureFtpPassword	Инфраструктура. Gets or sets the secured password for the login used to connect to the FTP server. (Производный от PullSubscription.)
	SecureInternetPassword	Sets the password (as a SecureString object) used when connecting to the Web server using HTTP Basic Authentication.
	SqlServerName	Gets the name of the Microsoft SQL Server instance to which this object is connected. (Производный от ReplicationObject.)
	SubscriberSecurity	Gets the security context that is used by the Synchronization Agent when connecting to the Subscriber. (Производный от PullSubscription.)
	SubscriberType	Gets or sets whether the subscription is a server or client subscription.
	SubscriptionId	Gets the subscription ID value. (Производный от PullSubscription.)
	SubscriptionType	Gets whether the subscription registration is for a push, pull, or anonymous subscription. (Производный от PullSubscription.)
	SynchronizationAgent	Gets an object that represents an instance of the Merge Agent that can be used to synchronize the subscription.
	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. (Производный от PullSubscription.)
	SyncType	Gets or sets the manner in which data is initialized at the Subscriber.
	Type	Инфраструктура. Gets or sets the publication type. (Производный от PullSubscription.)
	UseFtp	Gets or sets whether or not the snapshot files needed to initialize the pull subscription are accessed by the Synchronization Agent using File Transfer Protocol (FTP). (Производный от PullSubscription.)
	UseInteractiveResolver	Gets or sets whether the Interactive Resolver is used during the synchronization process.
	UserData	Gets or sets an object property that allows users to attach their own data to the object. (Производный от ReplicationObject.)
	UseWebSynchronization	Gets or sets whether the subscription is synchronized using Web synchronization.
	WorkingDirectory	Gets or sets the path of the directory at the Subscriber that is used to temporarily store and decompress downloaded snapshot files. (Производный от PullSubscription.)

В начало

Методы

	Имя	Описание
	CommitPropertyChanges	Sends all the cached property change statements to the instance of Microsoft SQL Server. (Производный от ReplicationObject.)
	Create	Creates the pull subscription on the Subscriber. (Производный от PullSubscription.)
	Decouple	Decouples the referenced replication object from the server. (Производный от ReplicationObject.)
	EnumSynchronizationPartners	Returns the Alternate Synchronization Partners
	Equals	(Производный от Object.)
	GetHashCode	(Производный от Object.)
	GetType	(Производный от Object.)
	LastAgentJobHistoryInfo	Returns information on the last Synchronization Agent job that was run. (Производный от PullSubscription.)
	Load	Loads the properties of an existing object from the server. (Производный от ReplicationObject.)
	LoadProperties	Loads the properties of an existing object from the server. (Производный от ReplicationObject.)
	Refresh	Reloads the properties of the object. (Производный от ReplicationObject.)
	Reinitialize	Marks the merge pull subscription for reinitialization.
	Remove	Removes the pull subscription. (Производный от PullSubscription.)
	Script	Returns a Transact-SQL script to create or delete the pull subscription based on the current property setting of the PullSubscription object. (Производный от PullSubscription.)
	StopSynchronizationJob	Attempts to stop a running Merge Agent job that is currently synchronizing the subscription. (Переопределяет PullSubscription.StopSynchronizationJob().)
	SynchronizeWithJob	Starts the agent job asynchronously to synchronize the pull subscription. (Переопределяет PullSubscription.SynchronizeWithJob().)
	ToString	(Производный от Object.)

В начало

Замечания

For a pull subscription, the Merge Agent runs at the Subscriber.

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.

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

Безопасность многопоточности

Любые открытые статический (Shared в Visual Basic) элементы этого типа потокобезопасны. Потокобезопасность с элементами экземпляров не гарантируется.

См. также

Справочник

Пространство имен Microsoft.SqlServer.Replication

Другие ресурсы

Как создать подписку по запросу (программирование объектов RMO)

Sales Orders Sample for Merge Replication