Classe SnapshotGenerationAgent

Article
02/01/2013

Provides the functionality of the Replication Snapshot Agent.

Hiérarchie d'héritage

System.Object
  System.MarshalByRefObject
    Microsoft.SqlServer.Replication.AgentCore
      Microsoft.SqlServer.Replication.SnapshotGenerationAgent

Espace de noms : Microsoft.SqlServer.Replication
Assembly : Microsoft.SqlServer.Replication (en Microsoft.SqlServer.Replication.dll)

Syntaxe

'Déclaration
<ComVisibleAttribute(True)> _
<GuidAttribute("80016755-0016-4129-A778-1461AD058C86")> _
<ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)> _
Public NotInheritable Class SnapshotGenerationAgent _
    Inherits AgentCore _
    Implements ISnapshotGenerationAgent
'Utilisation
Dim instance As SnapshotGenerationAgent

[ComVisibleAttribute(true)]
[GuidAttribute("80016755-0016-4129-A778-1461AD058C86")]
[ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)]
public sealed class SnapshotGenerationAgent : AgentCore, 
    ISnapshotGenerationAgent

[ComVisibleAttribute(true)]
[GuidAttribute(L"80016755-0016-4129-A778-1461AD058C86")]
[ClassInterfaceAttribute(ClassInterfaceType::AutoDispatch)]
public ref class SnapshotGenerationAgent sealed : public AgentCore, 
    ISnapshotGenerationAgent

[<SealedAttribute>]
[<ComVisibleAttribute(true)>]
[<GuidAttribute("80016755-0016-4129-A778-1461AD058C86")>]
[<ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)>]
type SnapshotGenerationAgent =  
    class 
        inherit AgentCore 
        interface ISnapshotGenerationAgent 
    end

public final class SnapshotGenerationAgent extends AgentCore implements ISnapshotGenerationAgent

Le type SnapshotGenerationAgent expose les membres suivants.

Constructeurs

	Nom	Description
	SnapshotGenerationAgent	Creates an instance of the SnapshotGenerationAgent class.

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Propriétés

	Nom	Description
	AbortPolicy	Gets or sets how running replication agent threads are terminated when an unanticipated shutdown occurs. (hérité de AgentCore.)
	BcpBatchSize	Gets or set the number of rows to send to the Distributor in a bulk copy operation.
	ComErrorCollection	Gets information on errors that occur during agent execution. (hérité de AgentCore.)
	Distributor	Gets or sets the name of the instance of SQL Server acting as the Distributor for the publication.
	DistributorDeadlockPriority	Gets or sets the priority of the Snapshot Agent connection to the Distributor when a deadlock occurs.
	DistributorEncryptedPassword	Infrastructure. Gets or sets the encrypted password for the distributor.
	DistributorEncryptionLevel	Gets of sets the level of Secure Sockets Layer (SSL) encryption used by the Snapshot Agent when connecting to the Distributor.
	DistributorLogin	Gets or sets the login name used when connecting locally to the Distributor using SQL Server Authentication.
	DistributorNetworkLibrary	Infrastructure. Gets or sets the Network library used when connecting locally to the Distributor using SQL Server Authentication.
	DistributorPassword	Sets the password used when connecting locally to the Distributor using SQL Server Authentication.
	DistributorSecurityMode	Gets or sets the security mode used when connecting locally to the Distributor.
	DynamicFilterHostName	Gets or sets the value supplied to the HOST_NAME function used in a parameterized row filter.
	DynamicFilterLogin	Gets or sets the value supplied to the SUSER_SNAME function used in a parameterized row filter.
	DynamicSnapshotLocation	Gets or sets the location of the partitioned snapshot for a subscription to a merge publication that is defined based-on a parameterized row filter.
	FieldDelimiter	Gets or sets the character or character sequence that marks the end of a field in the SQL Server bulk-copy data file.
	FlatExceptionCollection	Infrastructure. Gets the collection of exception objects accessed using the IEnumerable interface. (hérité de AgentCore.)
	HistoryVerboseLevel	Gets or sets the amount of history logged during agent execution. (hérité de AgentCore.)
	HRBcpBlocks	Infrastructure. Gets or sets the HR bulk copy program blocks.
	HRBcpBlockSize	Infrastructure. Gets or sets the HR bulk copy program block size.
	HRBcpDynamicBlocks	Infrastructure. Gets or sets the HR bulk copy program dynamic blocks.
	LoginTimeout	Get or sets the number of seconds before the login times out for connections made by the agent. (hérité de AgentCore.)
	MaxBcpThreads	Gets or sets the number of bulk copy operations that can be performed in parallel.
	MaxNetworkOptimization	Gets or sets whether out-of-partition deletes are sent to the Subscriber.
	OnetimeDynamicSnapshot	Infrastructure. Gets or sets the one time dynamic snapshot.
	Output	Gets or sets the name and path of the agent output file. (hérité de AgentCore.)
	OutputVerboseLevel	Gets or sets the level of detail of information written to the agent output file. (hérité de AgentCore.)
	PacketSize	Infrastructure. Gets or sets the packet size associated with the agent. (hérité de AgentCore.)
	ProfileName	Gets or sets an agent profile to use when running the agent. (hérité de AgentCore.)
	Publication	Gets or sets the name of the publication.
	Publisher	Gets or sets the name of the instance of SQL Server that is the Publisher.
	PublisherDatabase	Gets or sets the name of the publication database.
	PublisherDeadlockPriority	Gets or sets the priority of the Snapshot Agent connection to the Publisher when a deadlock occurs.
	PublisherEncryptedPassword	Infrastructure. Gets or sets the encrypted password for the publisher.
	PublisherEncryptionLevel	Gets of sets the level of Secure Sockets Layer (SSL) encryption used by the Snapshot Agent when connecting to the Distributor.
	PublisherFailoverPartner	Gets or sets the failover partner instance of SQL Server participating in a database mirroring session with the publication database. (hérité de AgentCore.)
	PublisherLogin	Gets or sets the login name used when connecting to the Publisher using SQL Server Authentication.
	PublisherNetworkLibrary	Infrastructure. Gets or sets the Network library used when connecting locally to the Publisher using SQL Server Authentication.
	PublisherPassword	Sets the password used when connecting to the Publisher using SQL Server Authentication.
	PublisherSecurityMode	Gets or sets the security mode used when connecting to the Publisher.
	QueryTimeout	Gets or sets the number of seconds before a query times out. (hérité de AgentCore.)
	ReplicationType	Gets or sets the type of publication.
	RowDelimiter	Gets or sets the character or character sequence that marks the end of a row in the SQL Server bulk-copy data file.
	SecureDistributorEncryptedPassword	Infrastructure. Sets the encrypted password used when connecting locally to the Distributor using SQL Server Authentication.
	SecureDistributorPassword	Sets the password (as a SecureString object) used when connecting locally to the Distributor using SQL Server Authentication.
	SecurePublisherEncryptedPassword	Infrastructure. Sets the encrypted password used when connecting to the Publisher using SQL Server Authentication.
	SecurePublisherPassword	Sets the password (as a SecureString object) used when connecting to the Publisher using SQL Server Authentication.
	StartQueueTimeout	Gets or sets the time that the Snapshot Agent waits when the maximum number of concurrent partitioned snapshot processes for a merge publication are already running.
	Supports70Subscribers	Gets or sets whether the generated snapshot supports SQL Server 7.0 Subscribers.

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Méthodes

	Nom	Description
	Abort	Aborts the process of the current instance. (hérité de AgentCore.)
	CreateObjRef	Informations critiques de sécurité. (hérité de MarshalByRefObject.)
	Equals	(hérité de Object.)
	GenerateSnapshot	Starts the Snapshot Agent to generate the snapshot.
	GetHashCode	(hérité de Object.)
	GetLifetimeService	Informations critiques de sécurité. (hérité de MarshalByRefObject.)
	GetType	(hérité de Object.)
	InitializeLifetimeService	Informations critiques de sécurité. (hérité de MarshalByRefObject.)
	ResetParametersToDefault	Resets the value of the parameters to default. (hérité de AgentCore.)
	ToString	(hérité de Object.)

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Événements

	Nom	Description
	ComStatus	Infrastructure. Occurs when a running agent returns synchronization Com status information. (hérité de AgentCore.)
	Status	Occurs when a running agent returns status information. (hérité de AgentCore.)

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Implémentations d'interfaces explicites

	Nom	Description
	ISnapshotGenerationAgent.ResetParametersToDefault	Resets the parameters to its default value.

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Notes

The SnapshotGenerationAgent class provides direct, programmatic access to the Snapshot Agent.

The SnapshotGenerationAgent class supports the ability to do the following replication tasks:

Generate the initial snapshot
Generate a partitioned snapshot for a subscription defined based-on a parameterized filter.

Exemples

This example generates a standard snapshot for a transactional publication.

         // Set the Publisher, publication database, and publication names.
            string publicationName = "AdvWorksProductTran";
            string publicationDbName = "AdventureWorks2012";
            string publisherName = publisherInstance;
            string distributorName = publisherInstance;

            SnapshotGenerationAgent agent;

            try
            {
                // Set the required properties for Snapshot Agent.
                agent = new SnapshotGenerationAgent();
                agent.Distributor = distributorName;
                agent.DistributorSecurityMode = SecurityMode.Integrated;
                agent.Publisher = publisherName;
                agent.PublisherSecurityMode = SecurityMode.Integrated;
                agent.Publication = publicationName;
                agent.PublisherDatabase = publicationDbName;
                agent.ReplicationType = ReplicationType.Transactional;

                // Start the agent synchronously.
                agent.GenerateSnapshot();

            }
            catch (Exception ex)
            {
                // Implement custom application error handling here.
                throw new ApplicationException(String.Format(
                    "A snapshot could not be generated for the {0} publication."
                    , publicationName), ex);
            }

' Set the Publisher, publication database, and publication names.
Dim publicationName As String = "AdvWorksProductTran"
Dim publicationDbName As String = "AdventureWorks2012"
Dim publisherName As String = publisherInstance
Dim distributorName As String = publisherInstance

Dim agent As SnapshotGenerationAgent

Try
    ' Set the required properties for Snapshot Agent.
    agent = New SnapshotGenerationAgent()
    agent.Distributor = distributorName
    agent.DistributorSecurityMode = SecurityMode.Integrated
    agent.Publisher = publisherName
    agent.PublisherSecurityMode = SecurityMode.Integrated
    agent.Publication = publicationName
    agent.PublisherDatabase = publicationDbName
    agent.ReplicationType = ReplicationType.Transactional

    ' Start the agent synchronously.
    agent.GenerateSnapshot()

Catch ex As Exception
    ' Implement custom application error handling here.
    Throw New ApplicationException(String.Format( _
     "A snapshot could not be generated for the {0} publication." _
     , publicationName), ex)
End Try

This example generates a standard snapshot for a merge publication.

// Set the Publisher, publication database, and publication names.
string publicationName = "AdvWorksSalesOrdersMerge";
string publicationDbName = "AdventureWorks2012";
string publisherName = publisherInstance;
string distributorName = publisherInstance;

SnapshotGenerationAgent agent;

try
{
    // Set the required properties for Snapshot Agent.
    agent = new SnapshotGenerationAgent();
    agent.Distributor = distributorName;
    agent.DistributorSecurityMode = SecurityMode.Integrated;
    agent.Publisher = publisherName;
    agent.PublisherSecurityMode = SecurityMode.Integrated;
    agent.Publication = publicationName;
    agent.PublisherDatabase = publicationDbName;
    agent.ReplicationType = ReplicationType.Merge;

    // Start the agent synchronously.
    agent.GenerateSnapshot();

}
catch (Exception ex)
{
    // Implement custom application error handling here.
    throw new ApplicationException(String.Format(
        "A snapshot could not be generated for the {0} publication."
        , publicationName), ex);
}

' Set the Publisher, publication database, and publication names.
Dim publicationName As String = "AdvWorksSalesOrdersMerge"
Dim publicationDbName As String = "AdventureWorks2012"
Dim publisherName As String = publisherInstance
Dim distributorName As String = publisherInstance

Dim agent As SnapshotGenerationAgent

Try
    ' Set the required properties for Snapshot Agent.
    agent = New SnapshotGenerationAgent()
    agent.Distributor = distributorName
    agent.DistributorSecurityMode = SecurityMode.Integrated
    agent.Publisher = publisherName
    agent.PublisherSecurityMode = SecurityMode.Integrated
    agent.Publication = publicationName
    agent.PublisherDatabase = publicationDbName
    agent.ReplicationType = ReplicationType.Merge

    ' Start the agent synchronously.
    agent.GenerateSnapshot()

Catch ex As Exception
    ' Implement custom application error handling here.
    Throw New ApplicationException(String.Format( _
     "A snapshot could not be generated for the {0} publication." _
     , publicationName), ex)
End Try

This example overloads the HOST_NAME function to generate a filtered data snapshot for a subscription to a merge publication that has a parameterized filter.

           // Set the Publisher, publication database, and publication names.
            string publicationName = "AdvWorksSalesOrdersMerge";
            string publicationDbName = "AdventureWorks2012";
            string publisherName = publisherInstance;
            string distributorName = publisherInstance;

            SnapshotGenerationAgent agent;

            try
            {
                // Set the required properties for Snapshot Agent.
                agent = new SnapshotGenerationAgent();
                agent.Distributor = distributorName;
                agent.DistributorSecurityMode = SecurityMode.Integrated;
                agent.Publisher = publisherName;
                agent.PublisherSecurityMode = SecurityMode.Integrated;
                agent.Publication = publicationName;
                agent.PublisherDatabase = publicationDbName;
                agent.ReplicationType = ReplicationType.Merge;

                // Specify the partition information to generate a 
                // filtered snapshot based on Hostname.
                agent.DynamicFilterHostName = hostname;

                // Start the agent synchronously.
                agent.GenerateSnapshot();
            }
            catch (Exception ex)
            {
                // Implement custom application error handling here.
                throw new ApplicationException(String.Format(
                    "A snapshot could not be generated for the {0} publication."
                    , publicationName), ex);
            }

' Set the Publisher, publication database, and publication names.
Dim publicationName As String = "AdvWorksSalesOrdersMerge"
Dim publicationDbName As String = "AdventureWorks2012"
Dim publisherName As String = publisherInstance
Dim distributorName As String = publisherInstance

Dim agent As SnapshotGenerationAgent

Try
    ' Set the required properties for Snapshot Agent.
    agent = New SnapshotGenerationAgent()
    agent.Distributor = distributorName
    agent.DistributorSecurityMode = SecurityMode.Integrated
    agent.Publisher = publisherName
    agent.PublisherSecurityMode = SecurityMode.Integrated
    agent.Publication = publicationName
    agent.PublisherDatabase = publicationDbName
    agent.ReplicationType = ReplicationType.Merge

    ' Specify the partition information to generate a 
    ' filtered snapshot based on Hostname.
    agent.DynamicFilterHostName = hostname

    ' Start the agent synchronously.
    agent.GenerateSnapshot()
Catch ex As Exception
    ' Implement custom application error handling here.
    Throw New ApplicationException(String.Format( _
     "A snapshot could not be generated for the {0} publication." _
     , publicationName), ex)
End Try

Sécurité des threads

Tous les membres publics static (Shared dans Visual Basic) de ce type sont thread-safe. Tous les membres de l'instance ne sont pas garantis comme étant thread-safe.