Class SingleValueRestrictionFilter

Abstract Base Class for specialised Filters which restrict the value of a variable to a single value.

Inheritance

object

VariableRestrictionFilter

SingleValueRestrictionFilter

IdentityFilter

SameTermFilter

Implements

IFilter

IUnaryOperator

ISparqlAlgebra

IVisitable

IProcessable

Inherited Members

VariableRestrictionFilter.RestrictionVariable

VariableRestrictionFilter.Variables

VariableRestrictionFilter.FloatingVariables

VariableRestrictionFilter.FixedVariables

VariableRestrictionFilter.SparqlFilter

VariableRestrictionFilter.InnerAlgebra

VariableRestrictionFilter.ToString()

VariableRestrictionFilter.ToQuery()

VariableRestrictionFilter.ToGraphPattern()

VariableRestrictionFilter.Transform(IAlgebraOptimiser)

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 abstract class SingleValueRestrictionFilter : VariableRestrictionFilter, IFilter, IUnaryOperator, ISparqlAlgebra, IVisitable, IProcessable

Constructors

SingleValueRestrictionFilter(ISparqlAlgebra, string, ConstantTerm, ISparqlFilter)

Creates a new Single Value Restriction Filter.

Declaration

public SingleValueRestrictionFilter(ISparqlAlgebra pattern, string var, ConstantTerm term, ISparqlFilter filter)

Parameters

Type	Name	Description
ISparqlAlgebra	pattern	Algebra the filter applies over.
string	var	Variable to restrict on.
ConstantTerm	term	Value to restrict to.
ISparqlFilter	filter	Filter to use.

Properties

RestrictionValue

Gets the Value Restriction which this filter applies.

Declaration

public ConstantTerm RestrictionValue { get; }

Property Value

Type	Description
ConstantTerm

Methods

Accept<T>(ISparqlAlgebraVisitor<T>)

Accept a simple algebra visitor.

Declaration

public override T Accept<T>(ISparqlAlgebraVisitor<T> visitor)

Parameters

Type	Name	Description
ISparqlAlgebraVisitor<T>	visitor	The visitor implementation.

Returns

Type	Description
T

Type Parameters

Name	Description
T	The type returned by the Visit methods of the visitor.

Overrides

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

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

Called by an algebra visitor to process an item by invoking the appropriate method on the processor passed in.

Declaration

public override TResult Accept<TResult, TContext>(ISparqlQueryAlgebraProcessor<TResult, TContext> processor, TContext context)

Parameters

Type	Name	Description
ISparqlQueryAlgebraProcessor<TResult, TContext>	processor	The processor to invoke.
TContext	context	The context to pass to the processor.

Returns

Type	Description
TResult	The result of invoking the processor method.

Type Parameters

Name	Description
TResult	The type of result returned by the processor.
TContext	The type of the context object to be provided to the processor.

Overrides

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

Implements

IFilter

IUnaryOperator

ISparqlAlgebra

IVisitable

IProcessable

Extension Methods

Extensions.ToSafeString(object)

Extensions.AsEnumerable<T>(T)