Метод ExecuteProcess.InitializeTask

Initializes the properties associated with the task. This method is called by the runtime and is not used in code.

Пространство имен:  Microsoft.SqlServer.Dts.Tasks.ExecuteProcess
Сборка:  Microsoft.SqlServer.ExecProcTask (в Microsoft.SqlServer.ExecProcTask.dll)

Синтаксис

'Декларация
Public Overrides Sub InitializeTask ( _
    connections As Connections, _
    variableDispenser As VariableDispenser, _
    events As IDTSInfoEvents, _
    log As IDTSLogging, _
    eventInfos As EventInfos, _
    logEntryInfos As LogEntryInfos, _
    refTracker As ObjectReferenceTracker _
)
'Применение
Dim instance As ExecuteProcess 
Dim connections As Connections 
Dim variableDispenser As VariableDispenser 
Dim events As IDTSInfoEvents 
Dim log As IDTSLogging 
Dim eventInfos As EventInfos 
Dim logEntryInfos As LogEntryInfos 
Dim refTracker As ObjectReferenceTracker

instance.InitializeTask(connections, _
    variableDispenser, events, log, eventInfos, _
    logEntryInfos, refTracker)

public override void InitializeTask(
    Connections connections,
    VariableDispenser variableDispenser,
    IDTSInfoEvents events,
    IDTSLogging log,
    EventInfos eventInfos,
    LogEntryInfos logEntryInfos,
    ObjectReferenceTracker refTracker
)

public:
virtual void InitializeTask(
    Connections^ connections, 
    VariableDispenser^ variableDispenser, 
    IDTSInfoEvents^ events, 
    IDTSLogging^ log, 
    EventInfos^ eventInfos, 
    LogEntryInfos^ logEntryInfos, 
    ObjectReferenceTracker^ refTracker
) override

abstract InitializeTask : 
        connections:Connections * 
        variableDispenser:VariableDispenser * 
        events:IDTSInfoEvents * 
        log:IDTSLogging * 
        eventInfos:EventInfos * 
        logEntryInfos:LogEntryInfos * 
        refTracker:ObjectReferenceTracker -> unit  
override InitializeTask : 
        connections:Connections * 
        variableDispenser:VariableDispenser * 
        events:IDTSInfoEvents * 
        log:IDTSLogging * 
        eventInfos:EventInfos * 
        logEntryInfos:LogEntryInfos * 
        refTracker:ObjectReferenceTracker -> unit

public override function InitializeTask(
    connections : Connections, 
    variableDispenser : VariableDispenser, 
    events : IDTSInfoEvents, 
    log : IDTSLogging, 
    eventInfos : EventInfos, 
    logEntryInfos : LogEntryInfos, 
    refTracker : ObjectReferenceTracker
)

Параметры

• connections
  Тип: Microsoft.SqlServer.Dts.Runtime.Connections
  A collection of connections used by the task.

• variableDispenser
  Тип: Microsoft.SqlServer.Dts.Runtime.VariableDispenser
  A T:Microsoft.SqlServer.Dts.Runtime.VariableDispenser object for locking variables.

• events
  Тип: Microsoft.SqlServer.Dts.Runtime.IDTSInfoEvents
  An object implementing the T:Microsoft.SqlServer.Dts.Runtime.IDTSInfoEvents interface.

• log
  Тип: Microsoft.SqlServer.Dts.Runtime.IDTSLogging
  An object implementing the T:Microsoft.SqlServer.Dts.Runtime.IDTSLogging interface.

• eventInfos
  Тип: Microsoft.SqlServer.Dts.Runtime.EventInfos
  A collection containing events to be raised during execution of the task.

• logEntryInfos
  Тип: Microsoft.SqlServer.Dts.Runtime.LogEntryInfos
  A collection of log entries.

• refTracker
  Тип: Microsoft.SqlServer.Dts.Runtime.ObjectReferenceTracker
  An object reference tracker.

Замечания

For the ExecuteProcess task and all other stock tasks, this method is used to set the log events of each task.

The run-time engine calls InitializeTask immediately after the task is created and before validation, execution, or persistence operations.

Примеры

Task developers define custom events by overriding the InitializeTask method of the Task base class, and creating a new EventInfo. The following code sample shows the InitializeTask method of a custom task, where two custom events are created, and added to the eventInfos collection.

public override void InitializeTask(Connections connections, VariableDispenser variables, IDTSInfoEvents events, IDTSLogging log, EventInfos eventInfos, LogEntryInfos logEntryInfos, ObjectReferenceTracker refTracker)
{
    this.eventInfos = eventInfos;
    string[] paramNames = new string[1];
    TypeCode[] paramTypes = new TypeCode[1]{TypeCode.Int32};
    string[] paramDescriptions = new string[1];

    paramNames[0] = "InitialValue";
    paramDescriptions[0] = "The value before increment.";

    this.eventInfos.Add("OnBeforeIncrement","Fires before the task increments the value.",true,paramNames,paramTypes,paramDescriptions);
    this.onBeforeIncrement = this.eventInfos["OnBeforeIncrement"];

    paramDescriptions[0] = "The value after increment.";
    this.eventInfos.Add("OnAfterIncrement","Fires after the initial value is updated.",true,paramNames, paramTypes,paramDescriptions);
    this.onAfterIncrement = this.eventInfos["OnAfterIncrement"];
}

Public Overrides Sub InitializeTask(ByVal connections As Connections,  ByVal variables As VariableDispenser, ByVal events As IDTSInfoEvents, ByVal log As IDTSLogging, ByVal eventInfos As EventInfos, ByVal logEntryInfos As LogEntryInfos, ByVal refTracker As ObjectReferenceTracker) 
    Me.eventInfos = eventInfos
    Dim paramNames(0) As String
    Dim paramTypes(0) As TypeCode = {TypeCode.Int32}
    Dim paramDescriptions(0) As String
    
    paramNames(0) = "InitialValue"
    paramDescriptions(0) = "The value before increment."
    
    Me.eventInfos.Add("OnBeforeIncrement", "Fires before the task increments the value.", True, paramNames, paramTypes, paramDescriptions)
    Me.onBeforeIncrement = Me.eventInfos("OnBeforeIncrement")
    
    paramDescriptions(0) = "The value after increment."
    Me.eventInfos.Add("OnAfterIncrement", "Fires after the initial value is updated.", True, paramNames, paramTypes, paramDescriptions)
    Me.onAfterIncrement = Me.eventInfos("OnAfterIncrement")
End Sub

См. также

Справочник

ExecuteProcess Класс

Пространство имен Microsoft.SqlServer.Dts.Tasks.ExecuteProcess