Class IdentityFilterOptimiser

An Algebra Optimiser which implements the Identity Filter optimisation.

Inheritance

object

IdentityFilterOptimiser

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 IdentityFilterOptimiser : 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 this optimiser is applicable to all queries.

Declaration

public bool IsApplicable(SparqlQuery q)

Parameters

Type	Name	Description
SparqlQuery	q	Query.

Returns

Type	Description
bool

IsApplicable(SparqlUpdateCommandSet)

Returns that this optimiser is applicable to all updates.

Declaration

public bool IsApplicable(SparqlUpdateCommandSet cmds)

Parameters

Type	Name	Description
SparqlUpdateCommandSet	cmds	Updates.

Returns

Type	Description
bool

Optimise(ISparqlAlgebra)

Optimises the Algebra to use Identity Filters where applicable.

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)