Artigo
04/01/2012

Classe Task

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

Hierarquia de herança

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

Namespace: Microsoft.SqlServer.Dts.Runtime
Assembly: Microsoft.SqlServer.ManagedDTS (em Microsoft.SqlServer.ManagedDTS.dll)

Sintaxe

'Declaração
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

O tipo Task expõe os membros a seguir.

Construtores

	Nome	Descrição
	Task	Initializes a new instance of the Task class.

Início

Propriedades

	Nome	Descrição
	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.

Início

Métodos

	Nome	Descrição
	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. (Herdado de DtsObject.)
	Execute	Runs the task.
	Finalize	(Herdado 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. (Herdado de DtsObject.)
	GetType	(Herdado de Object.)
	InitializeTask	Initializes the properties associated with the task. This method is called by the runtime and is not used in code.
	MemberwiseClone	(Herdado de Object.)
	ToString	(Herdado 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.

Início

Comentários

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.

Exemplos

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

Segurança de thread

Qualquer membro público static (Shared no Visual Basic) desse tipo é seguro para threads. Não há garantia de que qualquer membro de instância seja seguro para threads.

Consulte também

Referência

Namespace Microsoft.SqlServer.Dts.Runtime

Hierarquia de herança

Compartilhar via

Classe Task

Hierarquia de herança

Sintaxe

Construtores

Propriedades

Métodos

Comentários

Exemplos

Segurança de thread

Consulte também

Referência

Hierarquia de herança

Recursos adicionais