FilterPattern Class

Class for representing Filter Patterns in SPARQL Queries.

Inheritance Hierarchy

SystemObject
VDS.RDF.Query.PatternsBaseTriplePattern
VDS.RDF.Query.PatternsFilterPattern

Namespace: VDS.RDF.Query.Patterns
Assembly: dotNetRDF (in dotNetRDF.dll) Version:

Syntax

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public class FilterPattern : BaseTriplePattern, 
	IFilterPattern, ITriplePattern, IComparable<ITriplePattern>, IComparable<IFilterPattern>, 
	IComparable<FilterPattern>

Public Class FilterPattern
	Inherits BaseTriplePattern
	Implements IFilterPattern, ITriplePattern, IComparable(Of ITriplePattern), 
	IComparable(Of IFilterPattern), IComparable(Of FilterPattern)

The FilterPattern type exposes the following members.

Constructors

	Name	Description
	FilterPattern	Creates a new Filter Pattern with the given Filter.

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Properties

	Name	Description
	Filter	Gets the Filter that this Pattern uses.
	FixedVariables	Returns the empty enumerable as don't know which variables will be bound. (Overrides BaseTriplePatternFixedVariables.)
	FloatingVariables	Returns the empty enumerable as don't know which variables will be bound. (Overrides BaseTriplePatternFloatingVariables.)
	HasNoBlankVariables	Returns true as a FILTER cannot contain blank variables. (Overrides BaseTriplePatternHasNoBlankVariables.)
	IsAcceptAll	Returns that the Pattern is not an accept all (since it's a Filter). (Overrides BaseTriplePatternIsAcceptAll.)
	PatternType	Gets the Pattern Type. (Overrides BaseTriplePatternPatternType.)
	UsesDefaultDataset	Gets whether the Pattern uses the Default Dataset. (Overrides BaseTriplePatternUsesDefaultDataset.)
	Variables	Gets the List of Variables used in the Pattern. (Inherited from BaseTriplePattern.)

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Methods

	Name	Description
	CompareTo(FilterPattern)	Compares a filter pattern to another.
	CompareTo(IFilterPattern)	Compares a filter pattern to another.
	CompareTo(ITriplePattern)	Compares a Triple Pattern to another Triple Pattern. (Inherited from BaseTriplePattern.)
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Evaluate	Evaluates a Filter in the given Evaluation Context. (Overrides BaseTriplePatternEvaluate(SparqlEvaluationContext).)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns the string representation of the Pattern. (Overrides BaseTriplePatternToString.)

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Fields

	Name	Description
	_vars	Stores the list of variables that are used in the Pattern. (Inherited from BaseTriplePattern.)

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Remarks

A Filter Pattern is any FILTER clause that can be executed during the process of executing Triple Patterns rather than after all the Triple Patterns and Child Graph Patterns have been executed.

Reference

VDS.RDF.Query.Patterns Namespace