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Clase PrecedenceConstraint

Specifies the properties for configuring a precedence constraint between two containers. This class cannot be inherited.

Jerarquía de herencia

System.Object
  Microsoft.SqlServer.Dts.Runtime.DtsObject
    Microsoft.SqlServer.Dts.Runtime.PrecedenceConstraint

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

Sintaxis

'Declaración
Public NotInheritable Class PrecedenceConstraint _
    Inherits DtsObject _
    Implements IDTSName, IDTSPersist, IComponent, IDisposable
'Uso
Dim instance As PrecedenceConstraint
public sealed class PrecedenceConstraint : DtsObject, 
    IDTSName, IDTSPersist, IComponent, IDisposable
public ref class PrecedenceConstraint sealed : public DtsObject, 
    IDTSName, IDTSPersist, IComponent, IDisposable
[<SealedAttribute>]
type PrecedenceConstraint =  
    class 
        inherit DtsObject 
        interface IDTSName 
        interface IDTSPersist 
        interface IComponent 
        interface IDisposable 
    end
public final class PrecedenceConstraint extends DtsObject implements IDTSName, IDTSPersist, IComponent, IDisposable

El tipo PrecedenceConstraint expone los siguientes miembros.

Propiedades

  Nombre Descripción
Propiedad pública ConstrainedExecutable Gets the name of a constrained container. This property is read-only.
Propiedad pública CreationName Gets the string used by the Integration Services runtime to create an instance of the PrecedenceConstraint object and add the object to the PrecedenceConstraints collection. This property is read-only.
Propiedad pública Description Gets or sets a description for the constraint.
Propiedad pública EvalOp Gets or sets the evaluation operations used by the precedence constraint.
Propiedad pública EvaluatesTrue Gets a value that indicates whether the specified Value property evaluates to true. This property is read-only.
Propiedad pública Expression Gets or sets the expression that the precedence constraint uses if EvalOp is set to Expression, ExpressionAndConstraint, or ExpressionOrConstraint.
Propiedad pública ID Gets the GUID of the precedence constraint. This property is read-only.
Propiedad pública LogicalAnd Gets or sets a Boolean value that indicates whether multiple constraints work together.
Propiedad pública Name Gets or sets the unique name of the precedence constraint.
Propiedad pública Parent Gets the parent container of the PrecedenceConstraint.
Propiedad pública PrecedenceExecutable Gets the name of the precedence executable. This property is read-only.
Propiedad pública Site Infraestructura. Gets or sets the site of the precedence constraint.
Propiedad pública Value Gets or sets the constraint type of Success, Failure, or Completion.

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Métodos

  Nombre Descripción
Método público Dispose This method is inherited from the IDisposable.Dispose method, which is a generic mechanism to explicitly tell an object to perform cleanup.
Método público Equals Determines whether two object instances are equal. (Se hereda de DtsObject.)
Método público GetHashCode Returns the hash code for this instance. (Se hereda de DtsObject.)
Método público GetType (Se hereda de Object.)
Método público LoadFromXML This method is not callable by your application code. Loads a package containing precedence constraints that are saved as .xml, use the Application.LoadPackage method.
Método público SaveToXML This method is not callable by your application code. Saves a package as .xml, use the Application.SaveToXml method.
Método público ToString (Se hereda de Object.)

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Eventos

  Nombre Descripción
Evento público Disposed Adds an event handler to listen to the Disposed event on the precedence constraint.

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Comentarios

You can specify the precedence and constrained executables that the precedence constraint connects, the expression and constraint that determine whether the constrained executable runs, and whether the precedence constraint works in concert with other precedence constraints.

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