ChangeStates Énumération
Définition
Important
Certaines informations portent sur la préversion du produit qui est susceptible d’être en grande partie modifiée avant sa publication. Microsoft exclut toute garantie, expresse ou implicite, concernant les informations fournies ici.
Énumère tous les états de modification des données que la logique métier personnalisée peut gérer pendant la synchronisation.
Cette énumération prend en charge une combinaison au niveau du bit de ses valeurs membres.
public enum class ChangeStates
[System.Flags]
public enum ChangeStates
[<System.Flags>]
type ChangeStates =
Public Enum ChangeStates
- Héritage
-
ChangeStates
- Attributs
Champs
CommitsToDestination | 32768 | Lorsque les modifications sont validées sur la base de données de destination. |
PublisherDeleteErrors | 2048 | Lorsqu'une erreur se produit en propageant une instruction DELETE du serveur de publication à l'Abonné. |
PublisherDeletes | 4 | Lorsqu'une instruction DELETE sur le serveur de publication est appliquée à l'Abonné. |
PublisherInsertErrors | 512 | Lorsqu'une erreur se produit en propageant une instruction INSERT du serveur de publication à l'Abonné. |
PublisherInserts | 1 | Lorsqu'une instruction INSERT sur le serveur de publication est appliquée à l'Abonné. |
PublisherUpdateErrors | 1024 | Lorsqu'une erreur se produit en propageant une instruction UPDATE du serveur de publication à l'Abonné. |
PublisherUpdates | 2 | Lorsqu'une instruction UPDATE sur le serveur de publication est appliquée à l'Abonné. |
PublisherUpdateSubscriberDeleteConflicts | 128 | Lorsqu'une instruction UPDATE sur le serveur de publication entre en conflit avec une instruction DELETE sur l'Abonné. |
SubscriberDeleteErrors | 16384 | Lorsqu'une erreur se produit en propageant une instruction DELETE de l'Abonné au serveur de publication. |
SubscriberDeletes | 32 | Lorsqu'une instruction DELETE sur l'Abonné est appliquée au serveur de publication. |
SubscriberInsertErrors | 4096 | Lorsqu'une erreur se produit en propageant une instruction INSERT de l'Abonné au serveur de publication. |
SubscriberInserts | 8 | Lorsqu'une instruction INSERT sur l'Abonné est appliquée au serveur de publication. |
SubscriberUpdateErrors | 8192 | Lorsqu'une erreur se produit en propageant une instruction UPDATE de l'Abonné au serveur de publication. |
SubscriberUpdatePublisherDeleteConflicts | 256 | Lorsqu'une instruction UPDATE sur l'Abonné entre en conflit avec une instruction DELETE sur le serveur de publication. |
SubscriberUpdates | 16 | Lorsqu'une instruction UPDATE sur l'Abonné est appliquée au serveur de publication. |
UpdateConflicts | 64 | Lorsqu'une instruction UPDATE sur le serveur de publication entre en conflit avec une instruction UPDATE sur l'Abonné. |
Exemples
using System;
using System.Text;
using System.Data;
using System.Data.Common;
using Microsoft.SqlServer.Replication.BusinessLogicSupport;
using Microsoft.Samples.SqlServer.BusinessLogicHandler;
namespace Microsoft.Samples.SqlServer.BusinessLogicHandler
{
public class OrderEntryBusinessLogicHandler :
Microsoft.SqlServer.Replication.BusinessLogicSupport.BusinessLogicModule
{
// Variables to hold server names.
private string publisherName;
private string subscriberName;
public OrderEntryBusinessLogicHandler()
{
}
// Implement the Initialize method to get publication
// and subscription information.
public override void Initialize(
string publisher,
string subscriber,
string distributor,
string publisherDB,
string subscriberDB,
string articleName)
{
// Set the Publisher and Subscriber names.
publisherName = publisher;
subscriberName = subscriber;
}
// Declare what types of row changes, conflicts, or errors to handle.
override public ChangeStates HandledChangeStates
{
get
{
// Handle Subscriber inserts, updates and deletes.
return ChangeStates.SubscriberInserts |
ChangeStates.SubscriberUpdates | ChangeStates.SubscriberDeletes;
}
}
public override ActionOnDataChange InsertHandler(SourceIdentifier insertSource,
DataSet insertedDataSet, ref DataSet customDataSet, ref int historyLogLevel,
ref string historyLogMessage)
{
if (insertSource == SourceIdentifier.SourceIsSubscriber)
{
// Build a line item in the audit message to log the Subscriber insert.
StringBuilder AuditMessage = new StringBuilder();
AuditMessage.Append(String.Format("A new order was entered at {0}. " +
"The SalesOrderID for the order is :", subscriberName));
AuditMessage.Append(insertedDataSet.Tables[0].Rows[0]["SalesOrderID"].ToString());
AuditMessage.Append("The order must be shipped by :");
AuditMessage.Append(insertedDataSet.Tables[0].Rows[0]["DueDate"].ToString());
// Set the reference parameter to write the line to the log file.
historyLogMessage = AuditMessage.ToString();
// Set the history log level to the default verbose level.
historyLogLevel = 1;
// Accept the inserted data in the Subscriber's data set and
// apply it to the Publisher.
return ActionOnDataChange.AcceptData;
}
else
{
return base.InsertHandler(insertSource, insertedDataSet, ref customDataSet,
ref historyLogLevel, ref historyLogMessage);
}
}
public override ActionOnDataChange UpdateHandler(SourceIdentifier updateSource,
DataSet updatedDataSet, ref DataSet customDataSet, ref int historyLogLevel,
ref string historyLogMessage)
{
if (updateSource == SourceIdentifier.SourceIsPublisher)
{
// Build a line item in the audit message to log the Subscriber update.
StringBuilder AuditMessage = new StringBuilder();
AuditMessage.Append(String.Format("An existing order was updated at {0}. " +
"The SalesOrderID for the order is ", subscriberName));
AuditMessage.Append(updatedDataSet.Tables[0].Rows[0]["SalesOrderID"].ToString());
AuditMessage.Append("The order must now be shipped by :");
AuditMessage.Append(updatedDataSet.Tables[0].Rows[0]["DueDate"].ToString());
// Set the reference parameter to write the line to the log file.
historyLogMessage = AuditMessage.ToString();
// Set the history log level to the default verbose level.
historyLogLevel = 1;
// Accept the updated data in the Subscriber's data set and apply it to the Publisher.
return ActionOnDataChange.AcceptData;
}
else
{
return base.UpdateHandler(updateSource, updatedDataSet,
ref customDataSet, ref historyLogLevel, ref historyLogMessage);
}
}
public override ActionOnDataDelete DeleteHandler(SourceIdentifier deleteSource,
DataSet deletedDataSet, ref int historyLogLevel, ref string historyLogMessage)
{
if (deleteSource == SourceIdentifier.SourceIsSubscriber)
{
// Build a line item in the audit message to log the Subscriber deletes.
// Note that the rowguid is the only information that is
// available in the dataset.
StringBuilder AuditMessage = new StringBuilder();
AuditMessage.Append(String.Format("An existing order was deleted at {0}. " +
"The rowguid for the order is ", subscriberName));
AuditMessage.Append(deletedDataSet.Tables[0].Rows[0]["rowguid"].ToString());
// Set the reference parameter to write the line to the log file.
historyLogMessage = AuditMessage.ToString();
// Set the history log level to the default verbose level.
historyLogLevel = 1;
// Accept the delete and apply it to the Publisher.
return ActionOnDataDelete.AcceptDelete;
}
else
{
return base.DeleteHandler(deleteSource, deletedDataSet,
ref historyLogLevel, ref historyLogMessage);
}
}
}
}
Imports System
Imports System.Text
Imports System.Data
Imports System.Data.Common
Imports Microsoft.SqlServer.Replication.BusinessLogicSupport
Namespace Microsoft.Samples.SqlServer.BusinessLogicHandler
Public Class OrderEntryBusinessLogicHandler
Inherits BusinessLogicModule
' Variables to hold server names.
Private publisherName As String
Private subscriberName As String
' Implement the Initialize method to get publication
' and subscription information.
Public Overrides Sub Initialize( _
ByVal publisher As String, _
ByVal subscriber As String, _
ByVal distributor As String, _
ByVal publisherDB As String, _
ByVal subscriberDB As String, _
ByVal articleName As String _
)
' Set the Publisher and Subscriber names.
publisherName = publisher
subscriberName = subscriber
End Sub
' Declare what types of row changes, conflicts, or errors to handle.
Public Overrides ReadOnly Property HandledChangeStates() As ChangeStates
Get
' Handle Subscriber inserts, updates and deletes.
Return (ChangeStates.SubscriberInserts Or _
ChangeStates.SubscriberUpdates Or ChangeStates.SubscriberDeletes)
End Get
End Property
Public Overrides Function InsertHandler(ByVal insertSource As SourceIdentifier, _
ByVal insertedDataSet As DataSet, ByRef customDataSet As DataSet, _
ByRef historyLogLevel As Integer, ByRef historyLogMessage As String) _
As ActionOnDataChange
If insertSource = SourceIdentifier.SourceIsSubscriber Then
' Build a line item in the audit message to log the Subscriber insert.
Dim AuditMessage As StringBuilder = New StringBuilder()
AuditMessage.Append(String.Format("A new order was entered at {0}. " + _
"The SalesOrderID for the order is :", subscriberName))
AuditMessage.Append(insertedDataSet.Tables(0).Rows(0)("SalesOrderID").ToString())
AuditMessage.Append("The order must be shipped by :")
AuditMessage.Append(insertedDataSet.Tables(0).Rows(0)("DueDate").ToString())
' Set the reference parameter to write the line to the log file.
historyLogMessage = AuditMessage.ToString()
' Set the history log level to the default verbose level.
historyLogLevel = 1
' Accept the inserted data in the Subscriber's data set and
' apply it to the Publisher.
Return ActionOnDataChange.AcceptData
Else
Return MyBase.InsertHandler(insertSource, insertedDataSet, customDataSet, _
historyLogLevel, historyLogMessage)
End If
End Function
Public Overrides Function UpdateHandler(ByVal updateSource As SourceIdentifier, _
ByVal updatedDataSet As DataSet, ByRef customDataSet As DataSet, _
ByRef historyLogLevel As Integer, ByRef historyLogMessage As String) _
As ActionOnDataChange
If updateSource = SourceIdentifier.SourceIsPublisher Then
' Build a line item in the audit message to log the Subscriber update.
Dim AuditMessage As StringBuilder = New StringBuilder()
AuditMessage.Append(String.Format("An existing order was updated at {0}. " + _
"The SalesOrderID for the order is ", subscriberName))
AuditMessage.Append(updatedDataSet.Tables(0).Rows(0)("SalesOrderID").ToString())
AuditMessage.Append("The order must now be shipped by :")
AuditMessage.Append(updatedDataSet.Tables(0).Rows(0)("DueDate").ToString())
' Set the reference parameter to write the line to the log file.
historyLogMessage = AuditMessage.ToString()
' Set the history log level to the default verbose level.
historyLogLevel = 1
' Accept the updated data in the Subscriber's data set and apply it to the Publisher.
Return ActionOnDataChange.AcceptData
Else
Return MyBase.UpdateHandler(updateSource, updatedDataSet, _
customDataSet, historyLogLevel, historyLogMessage)
End If
End Function
Public Overrides Function DeleteHandler(ByVal deleteSource As SourceIdentifier, _
ByVal deletedDataSet As DataSet, ByRef historyLogLevel As Integer, _
ByRef historyLogMessage As String) As ActionOnDataDelete
If deleteSource = SourceIdentifier.SourceIsSubscriber Then
' Build a line item in the audit message to log the Subscriber deletes.
' Note that the rowguid is the only information that is
' available in the dataset.
Dim AuditMessage As StringBuilder = New StringBuilder()
AuditMessage.Append(String.Format("An existing order was deleted at {0}. " + _
"The rowguid for the order is ", subscriberName))
AuditMessage.Append(deletedDataSet.Tables(0).Rows(0)("rowguid").ToString())
' Set the reference parameter to write the line to the log file.
historyLogMessage = AuditMessage.ToString()
' Set the history log level to the default verbose level.
historyLogLevel = 1
' Accept the delete and apply it to the Publisher.
Return ActionOnDataDelete.AcceptDelete
Else
Return MyBase.DeleteHandler(deleteSource, deletedDataSet, _
historyLogLevel, historyLogMessage)
End If
End Function
End Class
End Namespace