Class IdentityFilter

Represents a special case Filter where the Filter restricts a variable to just one value i.e. FILTER(?x = <value>).

Inheritance
System.Object
VariableRestrictionFilter
SingleValueRestrictionFilter
IdentityFilter
Implements
Inherited Members
object.Equals(object)
object.Equals(object, object)
object.GetHashCode()
object.GetType()
object.MemberwiseClone()
object.ReferenceEquals(object, object)
Namespace: VDS.RDF.Query.Algebra
Assembly: dotNetRdf.dll
Syntax
public class IdentityFilter : SingleValueRestrictionFilter, IFilter, IUnaryOperator, ISparqlAlgebra, IVisitable, IProcessable

Constructors

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IdentityFilter(ISparqlAlgebra, string, ConstantTerm)

Creates a new Identity Filter.

Declaration
public IdentityFilter(ISparqlAlgebra pattern, string var, ConstantTerm term)
Parameters
Type Name Description
ISparqlAlgebra pattern

Algebra the Filter applies over.
string var

Variable to restrict on.
ConstantTerm term

Expression Term.

Methods

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Transform(IAlgebraOptimiser)

Transforms the Inner Algebra using the given Optimiser.

Declaration
public override ISparqlAlgebra Transform(IAlgebraOptimiser optimiser)
Parameters
Type Name Description
IAlgebraOptimiser optimiser

Optimiser.
Returns
Type Description
ISparqlAlgebra
Overrides

Implements

Extension Methods