Class IdentityFilter

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

Inheritance

object

VariableRestrictionFilter

SingleValueRestrictionFilter

IdentityFilter

Implements

IFilter

IUnaryOperator

ISparqlAlgebra

IVisitable

IProcessable

Inherited Members

SingleValueRestrictionFilter.RestrictionValue

SingleValueRestrictionFilter.Accept<TResult, TContext>(ISparqlQueryAlgebraProcessor<TResult, TContext>, TContext)

SingleValueRestrictionFilter.Accept<T>(ISparqlAlgebraVisitor<T>)

VariableRestrictionFilter.RestrictionVariable

VariableRestrictionFilter.Variables

VariableRestrictionFilter.FloatingVariables

VariableRestrictionFilter.FixedVariables

VariableRestrictionFilter.SparqlFilter

VariableRestrictionFilter.InnerAlgebra

VariableRestrictionFilter.ToString()

VariableRestrictionFilter.ToQuery()

VariableRestrictionFilter.ToGraphPattern()

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

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

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

VariableRestrictionFilter.Transform(IAlgebraOptimiser)

Implements

IFilter

IUnaryOperator

ISparqlAlgebra

IVisitable

IProcessable

Extension Methods

Extensions.ToSafeString(object)

Extensions.AsEnumerable<T>(T)