DistributionPublisher Class
Represents information about a Publisher registered at the currently connected Distributor.
Inheritance Hierarchy
System.Object
Microsoft.SqlServer.Replication.ReplicationObject
Microsoft.SqlServer.Replication.DistributionPublisher
Namespace: Microsoft.SqlServer.Replication
Assembly: Microsoft.SqlServer.Rmo (in Microsoft.SqlServer.Rmo.dll)
Syntax
'Declaration
Public NotInheritable Class DistributionPublisher _
Inherits ReplicationObject
'Usage
Dim instance As DistributionPublisher
public sealed class DistributionPublisher : ReplicationObject
public ref class DistributionPublisher sealed : public ReplicationObject
[<SealedAttribute>]
type DistributionPublisher =
class
inherit ReplicationObject
end
public final class DistributionPublisher extends ReplicationObject
The DistributionPublisher type exposes the following members.
Constructors
| Name | Description | |
|---|---|---|
.gif "Public method") |
DistributionPublisher() | Creates a new instance of the DistributionPublisher class. |
|
DistributionPublisher(String, ServerConnection) | Creates a new instance of the DistributionPublisher class, with the Publisher name and with a connection to the Distributor used by the Publisher. |
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Properties
| Name | Description | |
|---|---|---|
.gif "Public property") |
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.) |
|
DistributionDatabase | Gets or sets the name of the distribution database used by the Publisher. |
|
DistributionPublications | Returns the publications that exist at the Publisher. |
|
HeterogeneousLogReaderAgentExists | Gets whether the Log Reader Agent job exists for the non-SQL Server Publisher. |
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HeterogeneousLogReaderAgentProcessSecurity | Gets the security context used by the Log Reader agent for a non-SQL Server Publisher. |
|
IsExistingObject | Gets whether the object exists on the server or not. (Inherited from ReplicationObject.) |
|
Name | Gets or sets the name of the Publisher instance of Microsoft SQL Server. |
|
PublisherSecurity | Gets the security context used by replication agent when connecting to the Publisher. |
|
PublisherType | Gets or sets the Publisher type. |
|
RegisteredSubscribers | Returns the Subscribers that are subscribed to publications at the Publisher. |
|
SqlServerName | Gets the name of the Microsoft SQL Server instance to which this object is connected. (Inherited from ReplicationObject.) |
|
Status | Gets the Publisher status. |
|
ThirdParty | Gets or sets whether the Publisher is a non-SQL Server Publisher. |
|
TransPublications | Returns the transactional publications at the Publisher. |
|
TrustedDistributorConnection | Infrastructure. |
|
UserData | Gets or sets an object property that allows users to attach their own data to the object. (Inherited from ReplicationObject.) |
|
WorkingDirectory | Gets or sets the name of the working directory used to store data and schema files for the publication. |
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Methods
| Name | Description | |
|---|---|---|
.gif "Protected method") |
CheckValidCreation | Infrastructure. (Inherited from ReplicationObject.) |
|
CheckValidDefinition | Infrastructure. (Inherited from ReplicationObject.) |
|
CommitPropertyChanges | Sends all the cached property change statements to the instance of Microsoft SQL Server. (Inherited from ReplicationObject.) |
|
Create | Registers the Publisher with the specified properties at the Distributor. |
|
CreateHeterogeneousLogReaderAgent | Creates a Log Reader Agent job for a non-SQL Server Publisher. |
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Decouple | Decouples the referenced replication object from the server. (Inherited from ReplicationObject.) |
|
EnumDistributionPublications | Returns information stored at the Distributor about publications at this Publisher. |
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EnumRegisteredSubscribers | Returns information stored at the Distributor about Subscribers to publications at this Publisher. |
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EnumTransPublications | Returns information at the Distributor about transactional publications at this Publisher. |
|
Equals | (Inherited from Object.) |
|
Finalize | (Inherited from Object.) |
|
GetChangeCommand | Infrastructure. (Inherited from ReplicationObject.) |
|
GetCreateCommand | Infrastructure. (Inherited from ReplicationObject.) |
|
GetDropCommand | Infrastructure. (Inherited from ReplicationObject.) |
|
GetHashCode | (Inherited from Object.) |
|
GetType | (Inherited from Object.) |
|
InternalRefresh | Infrastructure. (Inherited from ReplicationObject.) |
|
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.) |
|
MemberwiseClone | (Inherited from Object.) |
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Refresh | Reloads the properties of the object. (Inherited from ReplicationObject.) |
|
Remove | Removes the registration for this Publisher from the currently connected Distributor. |
|
Script | Generates a Transact-SQL script that can be used to install or uninstall the Publisher. |
|
ToString | (Inherited from Object.) |
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Remarks
The DistributionPublisher class requires a connection to the Distributor that is used by the Publisher.
This namespace, class, or member is supported only in version 2.0 of the .NET Framework.
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.
Examples
This example shows how a DistributionPublisher object is used to enable publishing.
// Set the server and database names
string distributionDbName = "distribution";
string publisherName = publisherInstance;
string publicationDbName = "AdventureWorks2008R2";
DistributionDatabase distributionDb;
ReplicationServer distributor;
DistributionPublisher publisher;
ReplicationDatabase publicationDb;
// Create a connection to the server using Windows Authentication.
ServerConnection conn = new ServerConnection(publisherName);
try
{
// Connect to the server acting as the Distributor
// and local Publisher.
conn.Connect();
// Define the distribution database at the Distributor,
// but do not create it now.
distributionDb = new DistributionDatabase(distributionDbName, conn);
distributionDb.MaxDistributionRetention = 96;
distributionDb.HistoryRetention = 120;
// Set the Distributor properties and install the Distributor.
// This also creates the specified distribution database.
distributor = new ReplicationServer(conn);
distributor.InstallDistributor((string)null, distributionDb);
// Set the Publisher properties and install the Publisher.
publisher = new DistributionPublisher(publisherName, conn);
publisher.DistributionDatabase = distributionDb.Name;
publisher.WorkingDirectory = @"\\" + publisherName + @"\repldata";
publisher.PublisherSecurity.WindowsAuthentication = true;
publisher.Create();
// Enable AdventureWorks as a publication database.
publicationDb = new ReplicationDatabase(publicationDbName, conn);
publicationDb.EnabledTransPublishing = true;
publicationDb.EnabledMergePublishing = true;
}
catch (Exception ex)
{
// Implement appropriate error handling here.
throw new ApplicationException("An error occured when installing distribution and publishing.", ex);
}
finally
{
conn.Disconnect();
}
' Set the server and database names
Dim distributionDbName As String = "distribution"
Dim publisherName As String = publisherInstance
Dim publicationDbName As String = "AdventureWorks2008R2"
Dim distributionDb As DistributionDatabase
Dim distributor As ReplicationServer
Dim publisher As DistributionPublisher
Dim publicationDb As ReplicationDatabase
' Create a connection to the server using Windows Authentication.
Dim conn As ServerConnection = New ServerConnection(publisherName)
Try
' Connect to the server acting as the Distributor
' and local Publisher.
conn.Connect()
' Define the distribution database at the Distributor,
' but do not create it now.
distributionDb = New DistributionDatabase(distributionDbName, conn)
distributionDb.MaxDistributionRetention = 96
distributionDb.HistoryRetention = 120
' Set the Distributor properties and install the Distributor.
' This also creates the specified distribution database.
distributor = New ReplicationServer(conn)
distributor.InstallDistributor((CType(Nothing, String)), distributionDb)
' Set the Publisher properties and install the Publisher.
publisher = New DistributionPublisher(publisherName, conn)
publisher.DistributionDatabase = distributionDb.Name
publisher.WorkingDirectory = "\\" + publisherName + "\repldata"
publisher.PublisherSecurity.WindowsAuthentication = True
publisher.Create()
' Enable AdventureWorks as a publication database.
publicationDb = New ReplicationDatabase(publicationDbName, conn)
publicationDb.EnabledTransPublishing = True
publicationDb.EnabledMergePublishing = True
Catch ex As Exception
' Implement appropriate error handling here.
Throw New ApplicationException("An error occured when installing distribution and publishing.", ex)
Finally
conn.Disconnect()
End Try
This example shows how a DistributionPublisher object is used to disable publishing at the Distributor.
// Set the Distributor and publication database names.
// Publisher and Distributor are on the same server instance.
string publisherName = publisherInstance;
string distributorName = publisherInstance;
string distributionDbName = "distribution";
string publicationDbName = "AdventureWorks";
// Create connections to the Publisher and Distributor
// using Windows Authentication.
ServerConnection publisherConn = new ServerConnection(publisherName);
ServerConnection distributorConn = new ServerConnection(distributorName);
// Create the objects we need.
ReplicationServer distributor =
new ReplicationServer(distributorConn);
DistributionPublisher publisher;
DistributionDatabase distributionDb =
new DistributionDatabase(distributionDbName, distributorConn);
ReplicationDatabase publicationDb;
publicationDb = new ReplicationDatabase(publicationDbName, publisherConn);
try
{
// Connect to the Publisher and Distributor.
publisherConn.Connect();
distributorConn.Connect();
// Disable all publishing on the AdventureWorks2008R2 database.
if (publicationDb.LoadProperties())
{
if (publicationDb.EnabledMergePublishing)
{
publicationDb.EnabledMergePublishing = false;
}
else if (publicationDb.EnabledTransPublishing)
{
publicationDb.EnabledTransPublishing = false;
}
}
else
{
throw new ApplicationException(
String.Format("The {0} database does not exist.", publicationDbName));
}
// We cannot uninstall the Publisher if there are still Subscribers.
if (distributor.RegisteredSubscribers.Count == 0)
{
// Uninstall the Publisher, if it exists.
publisher = new DistributionPublisher(publisherName, distributorConn);
if (publisher.LoadProperties())
{
publisher.Remove(false);
}
else
{
// Do something here if the Publisher does not exist.
throw new ApplicationException(String.Format(
"{0} is not a Publisher for {1}.", publisherName, distributorName));
}
// Drop the distribution database.
if (distributionDb.LoadProperties())
{
distributionDb.Remove();
}
else
{
// Do something here if the distribition DB does not exist.
throw new ApplicationException(String.Format(
"The distribution database '{0}' does not exist on {1}.",
distributionDbName, distributorName));
}
// Uninstall the Distributor, if it exists.
if (distributor.LoadProperties())
{
// Passing a value of false means that the Publisher
// and distribution databases must already be uninstalled,
// and that no local databases be enabled for publishing.
distributor.UninstallDistributor(false);
}
else
{
//Do something here if the distributor does not exist.
throw new ApplicationException(String.Format(
"The Distributor '{0}' does not exist.", distributorName));
}
}
else
{
throw new ApplicationException("You must first delete all subscriptions.");
}
}
catch (Exception ex)
{
// Implement appropriate error handling here.
throw new ApplicationException("The Publisher and Distributor could not be uninstalled", ex);
}
finally
{
publisherConn.Disconnect();
distributorConn.Disconnect();
}
' Set the Distributor and publication database names.
' Publisher and Distributor are on the same server instance.
Dim publisherName As String = publisherInstance
Dim distributorName As String = subscriberInstance
Dim distributionDbName As String = "distribution"
Dim publicationDbName As String = "AdventureWorks2008R2"
' Create connections to the Publisher and Distributor
' using Windows Authentication.
Dim publisherConn As ServerConnection = New ServerConnection(publisherName)
Dim distributorConn As ServerConnection = New ServerConnection(distributorName)
' Create the objects we need.
Dim distributor As ReplicationServer
distributor = New ReplicationServer(distributorConn)
Dim publisher As DistributionPublisher
Dim distributionDb As DistributionDatabase
distributionDb = New DistributionDatabase(distributionDbName, distributorConn)
Dim publicationDb As ReplicationDatabase
publicationDb = New ReplicationDatabase(publicationDbName, publisherConn)
Try
' Connect to the Publisher and Distributor.
publisherConn.Connect()
distributorConn.Connect()
' Disable all publishing on the AdventureWorks database.
If publicationDb.LoadProperties() Then
If publicationDb.EnabledMergePublishing Then
publicationDb.EnabledMergePublishing = False
ElseIf publicationDb.EnabledTransPublishing Then
publicationDb.EnabledTransPublishing = False
End If
Else
Throw New ApplicationException( _
String.Format("The {0} database does not exist.", publicationDbName))
End If
' We cannot uninstall the Publisher if there are still Subscribers.
If distributor.RegisteredSubscribers.Count = 0 Then
' Uninstall the Publisher, if it exists.
publisher = New DistributionPublisher(publisherName, distributorConn)
If publisher.LoadProperties() Then
publisher.Remove(False)
Else
' Do something here if the Publisher does not exist.
Throw New ApplicationException(String.Format( _
"{0} is not a Publisher for {1}.", publisherName, distributorName))
End If
' Drop the distribution database.
If distributionDb.LoadProperties() Then
distributionDb.Remove()
Else
' Do something here if the distribition DB does not exist.
Throw New ApplicationException(String.Format( _
"The distribution database '{0}' does not exist on {1}.", _
distributionDbName, distributorName))
End If
' Uninstall the Distributor, if it exists.
If distributor.LoadProperties() Then
' Passing a value of false means that the Publisher
' and distribution databases must already be uninstalled,
' and that no local databases be enabled for publishing.
distributor.UninstallDistributor(False)
Else
'Do something here if the distributor does not exist.
Throw New ApplicationException(String.Format( _
"The Distributor '{0}' does not exist.", distributorName))
End If
Else
Throw New ApplicationException("You must first delete all subscriptions.")
End If
Catch ex As Exception
' Implement appropriate error handling here.
Throw New ApplicationException("The Publisher and Distributor could not be uninstalled", ex)
Finally
publisherConn.Disconnect()
distributorConn.Disconnect()
End Try
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
See Also