Class PropertyFunctionOptimiser

An algebra optimiser that looks for property functions specified by simple triple patterns in BGPs and replaces them with actual property function patterns.

Inheritance

object

PropertyFunctionOptimiser

Implements

IAlgebraOptimiser

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: VDS.RDF.Query.Optimisation

Assembly: dotNetRdf.dll

Syntax

public class PropertyFunctionOptimiser : IAlgebraOptimiser

Properties

UnsafeOptimisation

Determines whether an Optimiser will perform algebra optimizations that are potentially unsafe at execution time.

Declaration

public bool UnsafeOptimisation { get; set; }

Property Value

Type	Description
bool

Methods

IsApplicable(SparqlQuery)

Returns that the optimiser is applicable.

Declaration

public bool IsApplicable(SparqlQuery q)

Parameters

Type	Name	Description
SparqlQuery	q	Query.

Returns

Type	Description
bool

IsApplicable(SparqlUpdateCommandSet)

Returns that the optimiser is applicable.

Declaration

public bool IsApplicable(SparqlUpdateCommandSet cmds)

Parameters

Type	Name	Description
SparqlUpdateCommandSet	cmds	Update Commands.

Returns

Type	Description
bool

Optimise(ISparqlAlgebra)

Optimises the algebra to include property functions.

Declaration

public ISparqlAlgebra Optimise(ISparqlAlgebra algebra)

Parameters

Type	Name	Description
ISparqlAlgebra	algebra	Algebra.

Returns

Type	Description
ISparqlAlgebra

Implements

IAlgebraOptimiser

Extension Methods

Extensions.ToSafeString(object)

Extensions.AsEnumerable<T>(T)