Task.InitializeTask Metode

Referensi

Definisi

Ruang nama:: Microsoft.SqlServer.Dts.Runtime

Rakitan:: Microsoft.SqlServer.ManagedDTS.dll

Penting

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Menginisialisasi properti yang terkait dengan tugas. Metode ini dipanggil oleh runtime dan tidak digunakan dalam kode.

public:
 virtual void InitializeTask(Microsoft::SqlServer::Dts::Runtime::Connections ^ connections, Microsoft::SqlServer::Dts::Runtime::VariableDispenser ^ variableDispenser, Microsoft::SqlServer::Dts::Runtime::IDTSInfoEvents ^ events, Microsoft::SqlServer::Dts::Runtime::IDTSLogging ^ log, Microsoft::SqlServer::Dts::Runtime::EventInfos ^ eventInfos, Microsoft::SqlServer::Dts::Runtime::LogEntryInfos ^ logEntryInfos, Microsoft::SqlServer::Dts::Runtime::ObjectReferenceTracker ^ refTracker);

public virtual void InitializeTask (Microsoft.SqlServer.Dts.Runtime.Connections connections, Microsoft.SqlServer.Dts.Runtime.VariableDispenser variableDispenser, Microsoft.SqlServer.Dts.Runtime.IDTSInfoEvents events, Microsoft.SqlServer.Dts.Runtime.IDTSLogging log, Microsoft.SqlServer.Dts.Runtime.EventInfos eventInfos, Microsoft.SqlServer.Dts.Runtime.LogEntryInfos logEntryInfos, Microsoft.SqlServer.Dts.Runtime.ObjectReferenceTracker refTracker);

abstract member InitializeTask : Microsoft.SqlServer.Dts.Runtime.Connections * Microsoft.SqlServer.Dts.Runtime.VariableDispenser * Microsoft.SqlServer.Dts.Runtime.IDTSInfoEvents * Microsoft.SqlServer.Dts.Runtime.IDTSLogging * Microsoft.SqlServer.Dts.Runtime.EventInfos * Microsoft.SqlServer.Dts.Runtime.LogEntryInfos * Microsoft.SqlServer.Dts.Runtime.ObjectReferenceTracker -> unit
override this.InitializeTask : Microsoft.SqlServer.Dts.Runtime.Connections * Microsoft.SqlServer.Dts.Runtime.VariableDispenser * Microsoft.SqlServer.Dts.Runtime.IDTSInfoEvents * Microsoft.SqlServer.Dts.Runtime.IDTSLogging * Microsoft.SqlServer.Dts.Runtime.EventInfos * Microsoft.SqlServer.Dts.Runtime.LogEntryInfos * Microsoft.SqlServer.Dts.Runtime.ObjectReferenceTracker -> unit

Public Overridable Sub InitializeTask (connections As Connections, variableDispenser As VariableDispenser, events As IDTSInfoEvents, log As IDTSLogging, eventInfos As EventInfos, logEntryInfos As LogEntryInfos, refTracker As ObjectReferenceTracker)

Parameter

connections: Connections

Kumpulan koneksi yang digunakan oleh tugas.

variableDispenser: VariableDispenser

Objek VariableDispenser untuk mengunci variabel.

events: IDTSInfoEvents

Objek yang mengimplementasikan IDTSInfoEvents antarmuka.

log: IDTSLogging

Objek yang mengimplementasikan IDTSLogging antarmuka.

eventInfos: EventInfos

Koleksi yang berisi peristiwa yang akan dimunculkan selama eksekusi tugas.

logEntryInfos: LogEntryInfos

Kumpulan entri log.

refTracker: ObjectReferenceTracker

Pelacak referensi objek.

Contoh

Pengembang tugas menentukan peristiwa kustom dengan mengambil InitializeTask alih metode Task kelas dasar, dan membuat baru EventInfo. Sampel kode berikut menunjukkan metode InitializeTask dari tugas kustom, di mana dua peristiwa kustom dibuat, dan ditambahkan ke koleksi eventInfos.

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

Keterangan

Untuk tugas stok, metode ini digunakan untuk mengatur peristiwa log dari setiap tugas.

Mesin run-time memanggil InitializeTask segera setelah tugas dibuat—sebelum operasi validasi, eksekusi, atau persistensi.

Berlaku untuk