Artículo
03/31/2012

Clase Task

Defines an abstract class that implements the methods and properties common to all tasks in Integration Services.

Jerarquía de herencia

System. . :: . .Object
  Microsoft.SqlServer.Dts.Runtime. . :: . .DtsObject
    Microsoft.SqlServer.Dts.Runtime..::..Task
      Más...

Espacio de nombres: Microsoft.SqlServer.Dts.Runtime
Ensamblado: Microsoft.SqlServer.ManagedDTS (en Microsoft.SqlServer.ManagedDTS.dll)

Sintaxis

'Declaración
Public MustInherit Class Task _
    Inherits DtsObject _
    Implements IDTSManagedTask
'Uso
Dim instance As Task

public abstract class Task : DtsObject, 
    IDTSManagedTask

public ref class Task abstract : public DtsObject, 
    IDTSManagedTask

[<AbstractClassAttribute>]
type Task =  
    class
        inherit DtsObject
        interface IDTSManagedTask
    end

public abstract class Task extends DtsObject implements IDTSManagedTask

El tipo Task expone los siguientes miembros.

Constructores

	Nombre	Descripción
	Task	Initializes a new instance of the Task class.

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Propiedades

	Nombre	Descripción
	ExecutionValue	Returns a user-defined object. This field is read-only.
	Version	* Member deprecated; see Remarks. * Returns the version of the task. This property is read-only.

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Métodos

	Nombre	Descripción
	CanUpdate	* Member deprecated; see Remarks. * A Boolean that indicates whether the new package XML can update the old package XML.
	Equals	Determines whether two object instances are equal. (Se hereda de DtsObject.)
	Execute	Runs the task.
	Finalize	(Se hereda de Object.)
	GetConnectionID	Gets a String containing the ID of the connection.
	GetConnectionName	Gets a String containing the name of the connection.
	GetHashCode	Returns the hash code for this instance. (Se hereda de DtsObject.)
	GetType	(Se hereda de Object.)
	InitializeTask	Initializes the properties associated with the task. This method is called by the runtime and is not used in code.
	MemberwiseClone	(Se hereda de Object.)
	ToString	(Se hereda de Object.)
	Update	* Member deprecated; see Remarks. * This method updates the old package XML with the new package XML if CanUpdate is set to true.
	Validate	Verifies that the component is properly configured.

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Comentarios

A package consists of one or more tasks. These tasks define units of work that are performed as part of copying and transforming data, communicating with other processes, and performing database management functions.

Inherits from DtsObject and IDTSManagedTask.

Ejemplos

The following code example is a very simple task implementation for a custom task that inherits from Task.

using System;
using Microsoft.SqlServer.Dts.Runtime;

class MyTask : Task
{
    private int m_value = 123;

    public override DTExecResult Execute(Connections connections,
Variables variables, IDTSEvents events,
IDTSLogging log, int lastExecResult, DtsTransaction txn)
    {
        return m_value;
    }
}

Imports System
Imports Microsoft.SqlServer.Dts.Runtime
 
Class MyTask
    Inherits Task
    Private m_value As Integer =  123 
    Public Overrides DTExecResult Property connections,() As Execute(Connections
    End Property
Variables variables, IDTSEvents events,
IDTSLogging log,int Function txn)() As lastExecResult,DtsTransaction
        Return m_value
End Function
End Class

Seguridad para subprocesos

Cualquier miembro público static (Shared en Visual Basic) de este tipo es seguro para subprocesos. No se garantiza que los miembros de instancia sean seguros para subprocesos.

Vea también

Referencia

Espacio de nombres Microsoft.SqlServer.Dts.Runtime

Jerarquía de herencia

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Clase Task

Jerarquía de herencia

Sintaxis

Constructores

Propiedades

Métodos

Comentarios

Ejemplos

Seguridad para subprocesos

Vea también

Referencia

Jerarquía de herencia

Recursos adicionales