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Classe PrecedenceConstraint

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

Hierarquia de herança

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

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

Sintaxe

'Declaração
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

O tipo PrecedenceConstraint expõe os membros a seguir.

Propriedades

  Nome Descrição
Propriedade pública ConstrainedExecutable Returns the name of a constrained container. This property is read-only.
Propriedade pública CreationName Returns 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.
Propriedade pública Description Gets or sets a description for the constraint.
Propriedade pública EvalOp Gets or sets the evaluation operations used by the precedence constraint.
Propriedade pública EvaluatesTrue Returns the Boolean value of the Value property. This property is read-only.
Propriedade pública Expression Gets or sets the expression that the precedence constraint uses if EvalOp is set to Expression, ExpressionAndConstraint, or ExpressionOrConstraint.
Propriedade pública ID Returns the GUID of the precedence constraint. This property is read-only.
Propriedade pública LogicalAnd Gets or sets a Boolean that indicates whether multiple constraints work together.
Propriedade pública Name Gets or sets the unique name of the precedence constraint.
Propriedade pública PrecedenceExecutable Returns the name of the precedence executable. This property is read-only.
Propriedade pública Site Infraestrutura.
Propriedade pública Value Gets or sets the constraint type of Success, Failure, or Completion.

Início

Métodos

  Nome Descrição
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. (Herdado de DtsObject.)
Método protegido Finalize (Herdado de Object.)
Método público GetHashCode Returns the hash code for this instance. (Herdado de DtsObject.)
Método público GetType (Herdado de Object.)
Método público LoadFromXML This method is not callable by your application code. To load a package containing precedence constraints that are saved as .xml, use the Application..::..LoadPackage method.
Método protegido MemberwiseClone (Herdado de Object.)
Método público SaveToXML This method is not callable by your application code. To save a package as .xml, use the Application..::..SaveToXml method.
Método público ToString (Herdado de Object.)

Início

Eventos

  Nome Descrição
Evento público Disposed Adds an event handler to listen to the Disposed event on the precedence constraint.

Início

Comentários

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.

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