PrecedenceConstraint Class

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

Inheritance Hierarchy


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


Public NotInheritable Class PrecedenceConstraint _
    Inherits DtsObject _
    Implements IDTSName, IDTSPersist, IComponent, IDisposable
Dim instance As PrecedenceConstraint
public sealed class PrecedenceConstraint : DtsObject, 
    IDTSName, IDTSPersist, IComponent, IDisposable
public ref class PrecedenceConstraint sealed : public DtsObject, 
    IDTSName, IDTSPersist, IComponent, IDisposable
type PrecedenceConstraint =  
        inherit DtsObject
        interface IDTSName
        interface IDTSPersist
        interface IComponent
        interface IDisposable
public final class PrecedenceConstraint extends DtsObject implements IDTSName, IDTSPersist, IComponent, IDisposable

The PrecedenceConstraint type exposes the following members.


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



  Name Description
Public method Dispose This method is inherited from the IDisposable.Dispose method, which is a generic mechanism to explicitly tell an object to perform cleanup.
Public method Equals Determines whether two object instances are equal. (Inherited from DtsObject.)
Protected method Finalize (Inherited from Object.)
Public method GetHashCode Returns the hash code for this instance. (Inherited from DtsObject.)
Public method GetType (Inherited from Object.)
Public method 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.
Protected method MemberwiseClone (Inherited from Object.)
Public method SaveToXML This method is not callable by your application code. To save a package as .xml, use the Application.SaveToXml method.
Public method ToString (Inherited from Object.)



  Name Description
Public event Disposed Adds an event handler to listen to the Disposed event on the precedence constraint.



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.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.