Initialize 方法

Sends information about the article being synchronized to the business logic resolver when the Merge Agent is started.

命名空间：  Microsoft.SqlServer.Replication.BusinessLogicSupport
程序集：  Microsoft.SqlServer.Replication.BusinessLogicSupport（在 Microsoft.SqlServer.Replication.BusinessLogicSupport.dll 中）

语法

声明
Public Overridable Sub Initialize ( _
    publisher As String, _
    subscriber As String, _
    distributor As String, _
    publisherDB As String, _
    subscriberDB As String, _
    articleName As String _
)
用法
Dim instance As BusinessLogicModule
Dim publisher As String
Dim subscriber As String
Dim distributor As String
Dim publisherDB As String
Dim subscriberDB As String
Dim articleName As String

instance.Initialize(publisher, subscriber, _
    distributor, publisherDB, subscriberDB, _
    articleName)

public virtual void Initialize(
    string publisher,
    string subscriber,
    string distributor,
    string publisherDB,
    string subscriberDB,
    string articleName
)

public:
virtual void Initialize(
    String^ publisher, 
    String^ subscriber, 
    String^ distributor, 
    String^ publisherDB, 
    String^ subscriberDB, 
    String^ articleName
)

abstract Initialize : 
        publisher:string * 
        subscriber:string * 
        distributor:string * 
        publisherDB:string * 
        subscriberDB:string * 
        articleName:string -> unit 
override Initialize : 
        publisher:string * 
        subscriber:string * 
        distributor:string * 
        publisherDB:string * 
        subscriberDB:string * 
        articleName:string -> unit 

public function Initialize(
    publisher : String, 
    subscriber : String, 
    distributor : String, 
    publisherDB : String, 
    subscriberDB : String, 
    articleName : String
)

参数

• publisher
  类型：System. . :: . .String
  Name of the Publisher.

• subscriber
  类型：System. . :: . .String
  Name of the Subscriber.

• distributor
  类型：System. . :: . .String
  Name of the Distributor.

• publisherDB
  类型：System. . :: . .String
  Name of the publication database.

• subscriberDB
  类型：System. . :: . .String
  Name of the subscription database.

• articleName
  类型：System. . :: . .String
  Name of the published article.

注释

The merge agent will cache this information and use it throughout the lifetime of the synchronization process.

示例

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

请参阅

参考

BusinessLogicModule 类

Microsoft.SqlServer.Replication.BusinessLogicSupport 命名空间

其他资源

在合并同步期间执行业务逻辑

如何实现合并项目的业务逻辑处理程序（复制编程）