Task.Execute Método
Runs the task.
Espacio de nombres: Microsoft.SqlServer.Dts.Runtime
Ensamblado: Microsoft.SqlServer.ManagedDTS (en Microsoft.SqlServer.ManagedDTS.dll)
Sintaxis
'Declaración
Public Overridable Function Execute ( _
connections As Connections, _
variableDispenser As VariableDispenser, _
componentEvents As IDTSComponentEvents, _
log As IDTSLogging, _
transaction As Object _
) As DTSExecResult
'Uso
Dim instance As Task
Dim connections As Connections
Dim variableDispenser As VariableDispenser
Dim componentEvents As IDTSComponentEvents
Dim log As IDTSLogging
Dim transaction As Object
Dim returnValue As DTSExecResult
returnValue = instance.Execute(connections, _
variableDispenser, componentEvents, _
log, transaction)
public virtual DTSExecResult Execute(
Connections connections,
VariableDispenser variableDispenser,
IDTSComponentEvents componentEvents,
IDTSLogging log,
Object transaction
)
public:
virtual DTSExecResult Execute(
Connections^ connections,
VariableDispenser^ variableDispenser,
IDTSComponentEvents^ componentEvents,
IDTSLogging^ log,
Object^ transaction
)
abstract Execute :
connections:Connections *
variableDispenser:VariableDispenser *
componentEvents:IDTSComponentEvents *
log:IDTSLogging *
transaction:Object -> DTSExecResult
override Execute :
connections:Connections *
variableDispenser:VariableDispenser *
componentEvents:IDTSComponentEvents *
log:IDTSLogging *
transaction:Object -> DTSExecResult
public function Execute(
connections : Connections,
variableDispenser : VariableDispenser,
componentEvents : IDTSComponentEvents,
log : IDTSLogging,
transaction : Object
) : DTSExecResult
Parámetros
- connections
Tipo: Microsoft.SqlServer.Dts.Runtime.Connections
A collection of connections used by the task.
- variableDispenser
Tipo: Microsoft.SqlServer.Dts.Runtime.VariableDispenser
A VariableDispenser object for locking variables.
- componentEvents
Tipo: Microsoft.SqlServer.Dts.Runtime.IDTSComponentEvents
An object that implements the IDTSComponentEvents interface.
- log
Tipo: Microsoft.SqlServer.Dts.Runtime.IDTSLogging
An object that implements the IDTSLogging interface.
- transaction
Tipo: System.Object
The transaction object that the container is a part of. This value can be nulles una referencia NULL (Nothing en Visual Basic)..
Valor devuelto
Tipo: Microsoft.SqlServer.Dts.Runtime.DTSExecResult
A value from the DTSExecResult enumeration.
Comentarios
The Execute method is inherited by task hosts and other objects from the Executable abstract class, through the DtsContainer class, and allows the inheriting objects to be run by the runtime engine. The Execute method inherited by the individual objects is not commonly used in code, and it is recommended that you call the Execute method if you need to run any of the tasks or containers in the package. However, the Execute method is available on individual objects should you find a unique circumstance where it is needed.
The main use of the Execute method is to be inherited and overridden when you create a custom task. For more information about how to override the Execute method, see Codificar una tarea personalizada.
The Execute method calls the Validate method implicitly before the package runs. All tasks in the package are reviewed for appropriate settings during validation, and all objects in the package are reviewed, including the package, containers, and other components in the package.
If there are no problems encountered in the validation phase that would cause the package to fail, the package object proceeds to call the Execute method for each task and object in the package.
Pass nulles una referencia NULL (Nothing en Visual Basic). for the transaction parameter when the TransactionOption property is false. If the TransactionOption property is true, you can pass null in the transaction parameter to indicate that the container supports transactions but does not participate.
Ejemplos
The following code example shows how to run a package containing a in inheritor of Task, the BulkInsertTask. The Bulk Insert task is an example for this code sample; any task can be created in its place.
using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.SqlServer.Dts.Runtime;
using Microsoft.SqlServer.Dts.Tasks.BulkInsertTask
namespace Microsoft.SqlServer.SSIS.Samples
{
class Program
{
static void Main(string[] args)
{
Package p = new Package();
p.InteractiveMode = true;
p.OfflineMode = true;
Executable exec1 = pkg.Executables.Add("STOCK:BulkInsertTask");
TaskHost th = exec1 as TaskHost;
// Set the CheckConstraints and DataFileType properties.
th.Properties["CheckConstraints"].SetValue(th, true);
th.Properties["DataFileType"].SetValue(th, DTSBulkInsert_DataFileType.DTSBulkInsert_DataFileType_Native);
// Run the package that contains the task.
pkg.Execute();
// Review the results of the run.
if (taskH.ExecutionResult == DTSExecResult.Failure || taskH.ExecutionStatus == DTSExecStatus.Abend)
Console.WriteLine("Task failed or abended");
else
Console.WriteLine("Task ran successfully");
}
}
}
Imports System
Imports System.Collections.Generic
Imports System.Text
Imports Microsoft.SqlServer.Dts.Runtime
Imports Microsoft.SqlServer.Dts.Tasks.BulkInsertTask
Namespace Microsoft.SqlServer.SSIS.Samples
Class Program
Shared Sub Main(ByVal args() As String)
Dim p As Package = New Package()
p.InteractiveMode = True
p.OfflineMode = True
Dim exec1 As Executable = pkg.Executables.Add("STOCK:BulkInsertTask")
Dim th As TaskHost = exec1 as TaskHost
' Set the CheckConstraints and DataFileType properties.
th.Properties("CheckConstraints").SetValue(th, True)
th.Properties("DataFileType").SetValue(th, DTSBulkInsert_DataFileType.DTSBulkInsert_DataFileType_Native)
' Run the package that contains the task.
pkg.Execute()
' Review the results of the run.
If taskH.ExecutionResult = DTSExecResult.Failure Or taskH.ExecutionStatus = DTSExecStatus.Abend Then
Console.WriteLine("Task failed or abended")
Else
Console.WriteLine("Task ran successfully")
End If
End Sub
End Class
End Namespace