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Classe SnapshotGenerationAgent

Provides the functionality of the Replication Snapshot Agent.

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

Sintassi

'Dichiarazione
<ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)> _
<GuidAttribute("141945FD-18BD-4222-B6D9-F937704C7FFE")> _
<ComVisibleAttribute(True)> _
Public NotInheritable Class SnapshotGenerationAgent _
    Inherits AgentCore _
    Implements ISnapshotGenerationAgent
'Utilizzo
Dim instance As SnapshotGenerationAgent

[ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)]
[GuidAttribute("141945FD-18BD-4222-B6D9-F937704C7FFE")]
[ComVisibleAttribute(true)]
public sealed class SnapshotGenerationAgent : AgentCore, 
    ISnapshotGenerationAgent

[ClassInterfaceAttribute(ClassInterfaceType::AutoDispatch)]
[GuidAttribute(L"141945FD-18BD-4222-B6D9-F937704C7FFE")]
[ComVisibleAttribute(true)]
public ref class SnapshotGenerationAgent sealed : public AgentCore, 
    ISnapshotGenerationAgent

[<SealedAttribute>]
[<ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)>]
[<GuidAttribute("141945FD-18BD-4222-B6D9-F937704C7FFE")>]
[<ComVisibleAttribute(true)>]
type SnapshotGenerationAgent =  
    class
        inherit AgentCore
        interface ISnapshotGenerationAgent
    end

public final class SnapshotGenerationAgent extends AgentCore implements ISnapshotGenerationAgent

Osservazioni

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.

Esempi

This example generates a standard snapshot for a transactional publication.

            // Set the Publisher, publication database, and publication names.
            string publicationName = "AdvWorksProductTran";
            string publicationDbName = "AdventureWorks";
            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 = "AdventureWorks"
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 = "AdventureWorks";
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 = "AdventureWorks"
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 = "AdventureWorks";
            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 = "AdventureWorks"
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

Gerarchia di ereditarietà

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

Thread Safety

Tutti i membri pubblici static (Shared in Visual Basic) di questo tipo sono thread safe. I membri di istanza non hanno garanzia di essere thread safe.