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
Inherited Members
Namespace: VDS.RDF.Query.Algebra
Assembly: dotNetRdf.dll
Syntax
public abstract class SingleValueRestrictionFilter : VariableRestrictionFilter, IFilter, IUnaryOperator, ISparqlAlgebra, IVisitable, IProcessable

Constructors

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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

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RestrictionValue

Gets the Value Restriction which this filter applies.

Declaration
public ConstantTerm RestrictionValue { get; }
Property Value
Type Description
ConstantTerm

Methods

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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
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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

Implements

Extension Methods