MergePullSubscription Class

Reference

Definition

Namespace:: Microsoft.SqlServer.Replication

Assembly:: Microsoft.SqlServer.Rmo.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Represents a pull subscription to a merge publication.

public ref class MergePullSubscription sealed : Microsoft::SqlServer::Replication::PullSubscription

public sealed class MergePullSubscription : Microsoft.SqlServer.Replication.PullSubscription

type MergePullSubscription = class
    inherit PullSubscription

Public NotInheritable Class MergePullSubscription
Inherits PullSubscription

Inheritance: Object

ReplicationObject

PullSubscription
MergePullSubscription

Examples

// 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

Remarks

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.

Constructors

MergePullSubscription()	Creates a new instance of the MergePullSubscription class.
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.
MergePullSubscription(String, String, String, String, ServerConnection)	Initializes a new instance of the MergePullSubscription class with the specified database, Publisher, publication, and Subscriber connection.

Properties

AgentJobId	Gets the ID of the agent job used to synchronize the subscription. (Inherited from 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. (Inherited from PullSubscription)
AgentOffloadServer	Gets or sets the name of the remote computer where the agent runs when using remote agent activation. (Inherited from PullSubscription)
AgentSchedule	Gets the schedule for the agent job used to synchronize the subscription. (Inherited from 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. (Inherited from PullSubscription)
CachePropertyChanges	Gets or sets whether to cache changes made to the replication properties or to apply them immediately. (Inherited from ReplicationObject)
ConnectionContext	Gets or sets the connection to an instance of Microsoft SQL Server. (Inherited from 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. (Inherited from PullSubscription)
DatabaseName	Gets or sets the name of the subscription database. (Inherited from PullSubscription)
Description	Gets or sets a textual description of the pull subscription. (Inherited from 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. (Inherited from PullSubscription)
DistributorSecurity	Gets the security context used to connect to the Distributor. (Inherited from 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. (Inherited from PullSubscription)
FtpAddress	Gets or sets the IP address of the FTP server. (Inherited from PullSubscription)
FtpLogin	Gets or sets the FTP login. (Inherited from PullSubscription)
FtpPassword	Gets or sets the FTP password. (Inherited from PullSubscription)
FtpPort	Gets or sets the port number for the FTP server. (Inherited from 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. (Inherited from ReplicationObject)
IsMemoryOptimized	(Inherited from PullSubscription)
LastAgentDateTime	Gets the date and time when the subscription was last synchronized. (Inherited from PullSubscription)
LastAgentStatus	Gets the status of the most recent synchronization of the subscription. (Inherited from PullSubscription)
LastAgentSummary	Gets a summary of the result of the most recent synchronization of the subscription. (Inherited from PullSubscription)
Name	Gets the name generated for the pull subscription. (Inherited from 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. (Inherited from PullSubscription)
PublicationName	Gets or sets the name of the publication to which the subscription subscribes. (Inherited from PullSubscription)
PublisherName	Gets or sets the name of the Publisher. (Inherited from PullSubscription)
PublisherSecurity	Gets or sets the security context used by the Synchronization Agent when connecting to the Publisher. (Inherited from PullSubscription)
SecureFtpPassword	Gets or sets the secured password for the login used to connect to the FTP server. (Inherited from 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. (Inherited from ReplicationObject)
SubscriberSecurity	Gets the security context that is used by the Synchronization Agent when connecting to the Subscriber. (Inherited from PullSubscription)
SubscriberType	Gets or sets whether the subscription is a server or client subscription.
SubscriptionId	Gets the subscription ID value. (Inherited from PullSubscription)
SubscriptionType	Gets whether the subscription registration is for a push, pull, or anonymous subscription. (Inherited from 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. (Inherited from PullSubscription)
SyncType	Gets or sets the manner in which data is initialized at the Subscriber.
Type	Gets or sets the publication type. (Inherited from 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). (Inherited from 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. (Inherited from 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. (Inherited from PullSubscription)

Methods

CheckValidCreation()	Checks the valid replication creation. (Inherited from ReplicationObject)
CheckValidDefinition(Boolean)	Indicates whether the definition if valid. (Inherited from PullSubscription)
CommitPropertyChanges()	Sends all the cached property change statements to the instance of Microsoft SQL Server. (Inherited from ReplicationObject)
Create()	Creates the pull subscription on the Subscriber. (Inherited from PullSubscription)
CustomEnabledForSyncMgr(StringBuilder)	Enables the custom publication for synchronous manager. (Inherited from PullSubscription)
Decouple()	Decouples the referenced replication object from the server. (Inherited from ReplicationObject)
EnumSynchronizationPartners()	Returns the Alternate Synchronization Partners
GetChangeCommand(StringBuilder, String, String)	Returns the change command from the replication. (Inherited from ReplicationObject)
GetCreateCommand(StringBuilder, Boolean, ScriptOptions)	Returns the create command from the replication. (Inherited from ReplicationObject)
GetDropCommand(StringBuilder, Boolean)	Returns the drop command from the replication. (Inherited from ReplicationObject)
InitMemberVariables(String, String, String, String, Boolean)	Initializes the member variables. (Inherited from PullSubscription)
InternalRefresh(Boolean)	Initiates an internal refresh from the replication. (Inherited from ReplicationObject)
LastAgentJobHistoryInfo()	Returns information on the last Synchronization Agent job that was run. (Inherited from PullSubscription)
Load()	Loads the properties of an existing object from the server. (Inherited from ReplicationObject)
LoadProperties()	Loads the properties of an existing object from the server. (Inherited from ReplicationObject)
Refresh()	Reloads the properties of the object. (Inherited from ReplicationObject)
Reinitialize(Boolean)	Marks the merge pull subscription for reinitialization.
Remove()	Removes the pull subscription. (Inherited from PullSubscription)
Script(ScriptOptions)	Returns a Transact-SQL script to create or delete the pull subscription based on the current property setting of the PullSubscription object. (Inherited from PullSubscription)
StopSynchronizationJob()	Attempts to stop a running Merge Agent job that is currently synchronizing the subscription.
SynchronizeWithJob()	Starts the agent job asynchronously to synchronize the pull subscription.

Applies to

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