Метод WmiEventWatcherTask.InitializeTask

Статья
04/26/2013

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

Пространство имен: Microsoft.SqlServer.Dts.Tasks.WmiEventWatcherTask
Сборка: Microsoft.SqlServer.WMIEWTask (в Microsoft.SqlServer.WMIEWTask.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 WmiEventWatcherTask 
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 Connections collection for the task.

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

events
Тип: Microsoft.SqlServer.Dts.Runtime.IDTSInfoEvents
An object that implements the IDTSInfoEvents interface for receiving events.

log
Тип: Microsoft.SqlServer.Dts.Runtime.IDTSLogging
An object that implements the IDTSLogging interface for logging events.

eventInfos
Тип: Microsoft.SqlServer.Dts.Runtime.EventInfos
A EventInfos object.

logEntryInfos
Тип: Microsoft.SqlServer.Dts.Runtime.LogEntryInfos
A LogEntryInfos object.

refTracker
Тип: Microsoft.SqlServer.Dts.Runtime.ObjectReferenceTracker
An ObjectReferenceTracker object.

Замечания

For the WmiEventWatcherTask and all other stock tasks, this method is used to set the log events of each task. The Службы Integration Services run-time engine calls this method 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 in which 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"];
}

См. также

Справочник

WmiEventWatcherTask Класс

Пространство имен Microsoft.SqlServer.Dts.Tasks.WmiEventWatcherTask

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